/* ==========================================================================
   seiflden.com v3 — site.css
   One stylesheet: tokens, base, components, sections, RTL, print.
   Logical properties only; RTL is driven by dir="rtl" on <html>.
   ========================================================================== */

/* ---------- Fonts (self-hosted, subset by unicode-range) ---------- */
@font-face {
  font-family: "Inter";
  src: url("/assets/fonts/inter-latin.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2190-2199, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("/assets/fonts/plex-ar-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+0890-0891, U+0898-08E1, U+08E3-08FF, U+200C-200E, U+2010-2011, U+204F, U+2E41, U+FB50-FDFF, U+FE70-FE74, U+FE76-FEFC;
}
@font-face {
  font-family: "IBM Plex Sans Arabic";
  src: url("/assets/fonts/plex-ar-700.woff2") format("woff2");
  font-weight: 500 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0600-06FF, U+0750-077F, U+0870-088E, U+0890-0891, U+0898-08E1, U+08E3-08FF, U+200C-200E, U+2010-2011, U+204F, U+2E41, U+FB50-FDFF, U+FE70-FE74, U+FE76-FEFC;
}

/* ---------- Tokens ---------- */
:root {
  /* light theme (default when the OS prefers light) */
  --bg: #fafafa;
  --s1: #ffffff;
  --s2: #f2f2f5;
  --b1: rgba(0, 0, 0, .10);
  --b2: rgba(0, 0, 0, .20);
  --t1: #1d1d1f;
  --t2: #515154;
  --t3: #6e6e73;
  --acc: #167332;          /* accent text / icons: >= 4.5:1 on every light surface incl. acc-soft */
  --acc-fill: #1a7f37;     /* #1f9d45 fails 4.5:1 with white text, so the fill uses the text green */
  --acc-fill-hover: #156b2e;
  --on-acc: #ffffff;
  --acc-soft: rgba(26, 127, 55, .08);
  --acc-line: rgba(26, 127, 55, .40);
  --warn: #8a5a00;
  --bad: #b3261e;
  --header-bg: rgba(250, 250, 250, .82);
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 12px 32px -12px rgba(0, 0, 0, .10);
  --glow: rgba(26, 127, 55, .07);
  --logo-plate: #ffffff;
  --amber: #b86200;
  --amber-soft: rgba(184, 98, 0, .12);
  --dot-off: rgba(0, 0, 0, .16);
  --bar-muted: #c7c7cc;
  --grid-line: rgba(0, 0, 0, .045);
  --dir: 1;

  --font: "Inter", "IBM Plex Sans Arabic", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-ar: "IBM Plex Sans Arabic", "Inter", system-ui, "Segoe UI", Tahoma, sans-serif;

  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 24px;
  --sp-6: 32px; --sp-7: 48px; --sp-8: 64px; --sp-9: 96px; --sp-10: 128px;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 20px;

  --ease: cubic-bezier(.2, .8, .2, 1);
  --d1: 150ms; --d2: 250ms; --d3: 400ms;

  --maxw: 1200px;
  --gutter: 20px;
  --header-h: 64px;
  --section-pad: 64px;

  --fs-h1: clamp(2.25rem, 1.6rem + 2.6vw, 3.75rem);
  --fs-h2: clamp(1.75rem, 1.4rem + 1.4vw, 2.5rem);
  --fs-h3: 1.25rem;
  --lh-body: 1.6;
  --lh-h: 1.08;

  color-scheme: light;
}

/* dark tokens: explicit choice, or OS preference when no override */
:root[data-theme="dark"] {
  --bg: #000000;
  --s1: #111113;
  --s2: #1c1c1e;
  --b1: rgba(255, 255, 255, .10);
  --b2: rgba(255, 255, 255, .18);
  --t1: #f5f5f7;
  --t2: #a1a1a6;
  --t3: #8e8e93;
  --acc: #30d158;
  --acc-fill: #30d158;
  --acc-fill-hover: #4ade74;
  --on-acc: #000000;
  --acc-soft: rgba(48, 209, 88, .10);
  --acc-line: rgba(48, 209, 88, .40);
  --warn: #ffd60a;
  --bad: #ff6961;
  --header-bg: rgba(0, 0, 0, .72);
  --shadow: 0 0 0 1px rgba(255, 255, 255, .02), 0 16px 40px -16px rgba(0, 0, 0, .8);
  --glow: rgba(48, 209, 88, .09);
  --logo-plate: transparent;
  --amber: #ffb340;
  --amber-soft: rgba(255, 179, 64, .14);
  --dot-off: rgba(255, 255, 255, .16);
  --bar-muted: #3a3a3c;
  --grid-line: rgba(255, 255, 255, .05);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000;
    --s1: #111113;
    --s2: #1c1c1e;
    --b1: rgba(255, 255, 255, .10);
    --b2: rgba(255, 255, 255, .18);
    --t1: #f5f5f7;
    --t2: #a1a1a6;
    --t3: #8e8e93;
    --acc: #30d158;
    --acc-fill: #30d158;
    --acc-fill-hover: #4ade74;
    --on-acc: #000000;
    --acc-soft: rgba(48, 209, 88, .10);
    --acc-line: rgba(48, 209, 88, .40);
    --warn: #ffd60a;
    --bad: #ff6961;
    --header-bg: rgba(0, 0, 0, .72);
    --shadow: 0 0 0 1px rgba(255, 255, 255, .02), 0 16px 40px -16px rgba(0, 0, 0, .8);
    --glow: rgba(48, 209, 88, .09);
    --logo-plate: transparent;
  --amber: #ffb340;
  --amber-soft: rgba(255, 179, 64, .14);
  --dot-off: rgba(255, 255, 255, .16);
  --bar-muted: #3a3a3c;
  --grid-line: rgba(255, 255, 255, .05);
    color-scheme: dark;
  }
}

@media (min-width: 768px) {
  :root { --gutter: 32px; --section-pad: 96px; }
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--t1);
  font-family: var(--font);
  font-size: 1rem;
  line-height: var(--lh-body);
  font-feature-settings: "cv11", "ss01";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
:lang(ar) body, body:lang(ar) {
  font-family: var(--font-ar);
  font-feature-settings: normal;
  font-size: 1.0625rem;
  line-height: 1.85;
}
[dir="rtl"] { --dir: -1; }
/* Latin terms inside Arabic text */
[lang="ar"] bdi[lang="en"] { font-family: var(--font); font-size: .92em; }
/* EN pages: Arabic link text uses the system Arabic face, so Plex Arabic is never downloaded */
html[lang="en"] a[lang="ar"] { font-family: system-ui, -apple-system, "Segoe UI", Tahoma, "Geeza Pro", sans-serif; }
.vh {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}
.sar {
  display: inline-block;
  /* official artwork is 1124 x 1256, keep its proportions */
  width: .74em; height: .82em;
  vertical-align: -.08em;
  fill: currentColor;
}
img, svg, picture { display: block; max-width: 100%; }
img { height: auto; }
h1, h2, h3, h4, p, ul, ol, dl, dd, figure, fieldset { margin: 0; }
ul, ol { padding: 0; list-style: none; }
fieldset { border: 0; padding: 0; min-width: 0; }
legend { padding: 0; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
strong { font-weight: 600; color: var(--t1); }
bdi { unicode-bidi: isolate; }
::selection { background: var(--acc-line); color: var(--t1); }

h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; color: var(--t1); text-wrap: balance; }
h2 { font-size: var(--fs-h2); line-height: 1.15; }
h3 { font-size: var(--fs-h3); line-height: 1.3; letter-spacing: -0.01em; font-weight: 600; }
h4 { font-size: 1rem; line-height: 1.4; letter-spacing: 0; font-weight: 600; }
p { text-wrap: pretty; }

/* Arabic typography: no tracking, taller lines, headings one step smaller */
:where(:lang(ar)) :is(h1, h2, h3, h4) { letter-spacing: 0; }
:where(:lang(ar)) h2 { font-size: clamp(1.5rem, 1.25rem + 1.1vw, 2.125rem); line-height: 1.35; }
:where(:lang(ar)) h3 { font-size: 1.125rem; line-height: 1.5; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.i {
  width: 20px; height: 20px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.75;
  stroke-linecap: round; stroke-linejoin: round;
}
[dir="rtl"] .flip { transform: scaleX(-1); }
.flip.back { transform: scaleX(-1); }
[dir="rtl"] .flip.back { transform: none; }

.container {
  width: 100%;
  max-width: calc(var(--maxw) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.muted { color: var(--t3); }
.small { font-size: .875rem; }
.tnum, .proof-value, .outcome-metric, .sup-value, .stat dd, .tl-dates, .more-line, .break-proof, .nf-code, .cert-meta, input[type="number"] {
  font-variant-numeric: tabular-nums;
}

/* ---------- Focus / skip ---------- */
:focus { outline: none; }
:focus-visible {
  outline: 2px solid var(--acc);
  outline-offset: 2px;
  border-radius: 6px;
}
main:focus-visible { outline: none; }
.skip-link {
  position: absolute;
  inset-inline-start: var(--sp-4);
  inset-block-start: -100px;
  z-index: 100;
  padding: 12px 16px;
  border-radius: var(--r-md);
  background: var(--acc-fill);
  color: var(--on-acc);
  font-weight: 600;
  transition: inset-block-start var(--d1) var(--ease);
}
.skip-link:focus { inset-block-start: var(--sp-3); }

/* ---------- Buttons ---------- */
.btn {
  --h: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--h);
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: .9375rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.005em;
  white-space: nowrap;
  text-align: center;
  transition: background-color var(--d1) var(--ease), border-color var(--d1) var(--ease), color var(--d1) var(--ease), transform var(--d1) var(--ease);
}
:lang(ar) .btn { letter-spacing: 0; }
.btn .i { width: 18px; height: 18px; }
.btn-sm { --h: 36px; padding: 0 14px; font-size: .875rem; }
.btn-md { --h: 44px; }
.btn-lg { --h: 52px; padding: 0 24px; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--acc-fill); color: var(--on-acc); }
.btn-primary:hover { background: var(--acc-fill-hover); }
.btn-secondary { border-color: var(--b2); color: var(--t1); background: transparent; }
.btn-secondary:hover { border-color: var(--t3); background: var(--s2); }
.btn-ghost { color: var(--t2); background: transparent; }
.btn-ghost:hover { color: var(--t1); background: var(--s2); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .6; cursor: progress; }

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 44px; height: 44px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--t2);
  transition: background-color var(--d1) var(--ease), color var(--d1) var(--ease);
}
.icon-btn:hover { background: var(--s2); color: var(--t1); }
.icon-btn-outline { border: 1px solid var(--b2); color: var(--t1); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  border-block-end: 1px solid var(--b1);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  height: var(--header-h);
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  min-height: 44px;
  align-self: center;
  padding-block: 10px;
  white-space: nowrap;
}
.brand-name { font-weight: 650; font-size: 1rem; letter-spacing: -0.01em; color: var(--t1); }
:lang(ar) .brand-name { font-weight: 700; letter-spacing: 0; }
.brand-role {
  display: none;
  font-size: .8125rem;
  color: var(--t3);
  padding-inline-start: 10px;
  border-inline-start: 1px solid var(--b2);
}
.primary-nav { display: none; margin-inline-start: auto; }
.primary-nav ul { display: flex; gap: 2px; }
.primary-nav a {
  position: relative;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--t2);
  border-radius: 8px;
  transition: color var(--d1) var(--ease);
}
.primary-nav a:hover, .primary-nav a.is-active { color: var(--t1); }
.primary-nav a::after {
  content: "";
  position: absolute;
  inset-inline: 12px;
  inset-block-end: 8px;
  height: 2px;
  border-radius: 2px;
  background: var(--acc);
  transform: scaleX(0);
  transition: transform var(--d2) var(--ease);
}
.primary-nav a.is-active::after { transform: scaleX(1); }
.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-inline-start: auto;
}
.primary-nav + .header-actions { margin-inline-start: 0; }
.lang-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 12px;
  border-radius: 999px;
  font-size: .875rem;
  font-weight: 500;
  color: var(--t2);
}
.lang-link:hover { color: var(--t1); background: var(--s2); }
.header-gate, .header-book { display: none; margin-inline-start: 6px; }

.t-sun { display: none; }
:root[data-theme="dark"] .t-sun { display: block; }
:root[data-theme="dark"] .t-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .t-sun { display: block; }
  :root:not([data-theme="light"]) .t-moon { display: none; }
}
.menu-toggle .i-close { display: none; }
.menu-toggle[aria-expanded="true"] .i-menu { display: none; }
.menu-toggle[aria-expanded="true"] .i-close { display: block; }
.no-js .theme-toggle, .no-js .menu-toggle { display: none; }

.nav-sheet {
  border-block-start: 1px solid var(--b1);
  padding-block: var(--sp-3) var(--sp-5);
  max-height: calc(100dvh - var(--header-h));
  overflow-y: auto;
}
.nav-sheet ul { display: grid; }
.nav-sheet li + li { border-block-start: 1px solid var(--b1); }
.nav-sheet a:not(.btn) {
  display: flex;
  align-items: center;
  min-height: 52px;
  font-size: 1.125rem;
  font-weight: 500;
}
.nav-sheet a.is-active { color: var(--acc); }
.sheet-actions { display: grid; gap: var(--sp-3); margin-block-start: var(--sp-4); }
.no-js .nav-sheet[hidden] { display: block; padding-block: 0 var(--sp-2); }
.no-js .nav-sheet ul { display: flex; flex-wrap: wrap; gap: 0 var(--sp-4); }
.no-js .nav-sheet li + li { border: 0; }
.no-js .nav-sheet a:not(.btn) { min-height: 44px; font-size: .9375rem; }
.no-js .sheet-actions { display: none; }

@media (min-width: 560px) {
  .brand-role { display: inline; }
}
@media (min-width: 1000px) {
  .primary-nav { display: block; }
  .menu-toggle, .nav-sheet, .no-js .nav-sheet[hidden] { display: none; }
}
@media (max-width: 999px) and (min-width: 560px) {
  .brand-role { display: none; }
}
/* PLAN m-2: five nav items + the gate button + the booking button need room: 1000-1179 nav only (the gate is its first item), 1180+ the gate
   button, 1360+ the booking button too */
@media (min-width: 1000px) and (max-width: 1179px) { .brand-role { display: none; } }
@media (min-width: 1180px) { .header-gate { display: inline-flex; } }
@media (min-width: 1360px) { .header-book { display: inline-flex; } }
@media (min-width: 1100px) {
  .primary-nav a { padding: 0 14px; }
}

/* ---------- Generic sections ---------- */
.section { padding-block: var(--section-pad); }
.section-alt { background: var(--s1); border-block: 1px solid var(--b1); }
.section-head { max-width: 720px; margin-block-end: var(--sp-7); }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-block-end: var(--sp-3);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--acc);
}
:lang(ar) .eyebrow { letter-spacing: 0; text-transform: none; font-size: .9375rem; }
.eb-num { font-variant-numeric: tabular-nums; }
.eb-slash { display: inline-block; width: 1px; height: .95em; background: currentColor; opacity: .45; transform: skewX(-18deg); margin-inline: 2px; }
.sep-rule { display: inline-block; width: 14px; height: 1px; background: currentColor; opacity: .5; margin-inline: 8px; vertical-align: middle; }
.section-intro {
  margin-block-start: var(--sp-4);
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--t2);
  max-width: 62ch;
}
:lang(ar) .section-intro { line-height: 1.8; }
.mini-title {
  margin-block-end: var(--sp-3);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--t3);
}
:lang(ar) .mini-title { letter-spacing: 0; text-transform: none; font-size: .9375rem; }

.card {
  background: var(--s1);
  border: 1px solid var(--b1);
  border-radius: var(--r-lg);
  transition: border-color var(--d2) var(--ease);
}
.section-alt .card { background: var(--bg); }
.card:hover { border-color: var(--acc-line); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-block: var(--sp-7) var(--sp-7);
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 60% at 85% 0%, var(--glow), transparent 70%),
    radial-gradient(40% 50% at 0% 10%, var(--glow), transparent 70%);
  pointer-events: none;
}
[dir="rtl"] .hero::before {
  background:
    radial-gradient(60% 60% at 15% 0%, var(--glow), transparent 70%),
    radial-gradient(40% 50% at 100% 10%, var(--glow), transparent 70%);
}
.hero-grid {
  display: grid;
  gap: var(--sp-7);
  align-items: center;
}
.eyebrow-pill {
  padding: 6px 12px;
  border: 1px solid var(--b1);
  border-radius: 999px;
  background: var(--s1);
  color: var(--t2);
  font-size: .75rem;
  letter-spacing: .04em;
  margin-block-end: var(--sp-5);
}
:lang(ar) .eyebrow-pill { font-size: .875rem; }
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--acc);
  box-shadow: 0 0 0 3px var(--acc-soft);
}
.hero h1 {
  font-size: var(--fs-h1);
  line-height: var(--lh-h);
  letter-spacing: -0.035em;
  font-weight: 700;
}
.h1-name {
  display: block;
  margin-block-end: var(--sp-3);
  font-size: clamp(1rem, .9rem + .4vw, 1.25rem);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--t2);
}
.h1-a, .h1-b { display: inline; }
.h1-b { color: var(--t3); }
:lang(ar) .hero h1 {
  font-size: clamp(2rem, 1.45rem + 2.2vw, 3.25rem);
  line-height: 1.34;
  padding-block-start: .12em;
  letter-spacing: 0;
}
:lang(ar) .h1-name { letter-spacing: 0; font-size: clamp(1.0625rem, .95rem + .4vw, 1.3125rem); }
.hero-sub {
  margin-block-start: var(--sp-5);
  max-width: 58ch;
  font-size: clamp(1.0625rem, 1rem + .3vw, 1.1875rem);
  line-height: 1.6;
  color: var(--t2);
}
:lang(ar) .hero-sub { line-height: 1.85; }
.hero-qualifier {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-block-start: var(--sp-4);
  font-size: .9375rem;
  font-weight: 500;
  color: var(--t1);
}
.hero-qualifier .i { width: 18px; height: 18px; color: var(--acc); }
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-block-start: var(--sp-6);
}
@media (max-width: 479px) {
  .hero-ctas .btn { flex: 1 1 100%; white-space: normal; padding-block: 10px; }
}
.hero-portrait {
  position: relative;
  justify-self: center;
  width: min(72%, 300px);
}
.hero-portrait::before, .hero-portrait::after {
  content: "";
  position: absolute;
  width: 56px; height: 56px;
  pointer-events: none;
}
.hero-portrait::before {
  inset-block-start: -10px; inset-inline-end: -10px;
  border-block-start: 1px solid var(--acc);
  border-inline-end: 1px solid var(--acc);
  border-start-end-radius: 26px;
}
.hero-portrait::after {
  inset-block-end: -10px; inset-inline-start: -10px;
  border-block-end: 1px solid var(--acc-line);
  border-inline-start: 1px solid var(--acc-line);
  border-end-start-radius: 26px;
}
.hero-portrait picture, .about-portrait picture {
  display: block;
  overflow: hidden;
  border-radius: var(--r-lg);
  border: 1px solid var(--b1);
  background: var(--s2);
  box-shadow: var(--shadow);
}
.hero-portrait img, .about-portrait img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.proof {
  display: grid;
  margin-block-start: var(--sp-7);
  border-block-start: 1px solid var(--b1);
}
.proof li {
  padding-block: var(--sp-5);
  border-block-end: 1px solid var(--b1);
}
.proof-value {
  font-size: clamp(1.875rem, 1.5rem + 1.4vw, 2.625rem);
  line-height: 1.1;
  font-weight: 650;
  letter-spacing: -0.03em;
  color: var(--t1);
}
:lang(ar) .proof-value { letter-spacing: 0; font-weight: 700; }
.proof-unit { font-size: .45em; font-weight: 600; letter-spacing: 0; color: var(--t2); }
.proof-label { margin-block-start: 6px; font-size: .9375rem; color: var(--t2); max-width: 30ch; }

@media (min-width: 720px) {
  .proof { grid-template-columns: repeat(3, 1fr); }
  .proof li { border-block-end: 0; padding-inline-end: var(--sp-5); }
  .proof li + li { padding-inline-start: var(--sp-5); border-inline-start: 1px solid var(--b1); }
}
@media (min-width: 960px) {
  .hero { padding-block: var(--sp-8) var(--sp-7); }
  .hero-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: var(--sp-8); }
  .hero-portrait { width: min(100%, 340px); justify-self: end; margin-inline-end: 10px; }
  .proof { margin-block-start: var(--sp-8); }
}
@media (min-width: 960px) and (max-height: 820px) {
  .hero { padding-block: var(--sp-6) var(--sp-6); }
  .proof { margin-block-start: var(--sp-6); }
  .proof li { padding-block: var(--sp-4) 0; }
  .hero-sub { margin-block-start: var(--sp-4); }
  .hero-ctas { margin-block-start: var(--sp-5); }
  .hero-portrait { width: min(100%, 310px); }
}

/* ---------- Logos ---------- */
.logos { padding-block: var(--sp-6) var(--sp-7); }
.logos-title {
  margin-block-end: var(--sp-5);
  font-size: .875rem;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--t3);
  text-align: center;
}
.logo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: var(--sp-3);
}
.logo-grid li {
  display: grid;
  place-items: center;
  height: 72px;
  padding: 10px 14px;
  border-radius: var(--r-md);
  background: var(--logo-plate);
  border: 1px solid var(--b1);
}
.logo-grid img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 44px;
  object-fit: contain;
  filter: grayscale(1) brightness(.78) contrast(1.35);
  opacity: .8;
  transition: filter var(--d2) var(--ease), opacity var(--d2) var(--ease);
}
.logo-grid li:hover img { filter: none; opacity: 1; }
/* a white-ink logo (Toots): dark on the light plate, as it is on the dark one */
.logo-grid li[data-ondark="white"] img { filter: grayscale(1) invert(1) brightness(.62) contrast(1.2); }
.logo-grid li[data-ondark="white"]:hover img { filter: invert(1) brightness(.62); }
/* 27 brands: three per row on a phone with a lower plate, six on a tablet, nine on a desktop (three rows) */
@media (max-width: 599px) {
  .logo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
  .logo-grid li { height: 60px; padding: 8px 10px; }
  .logo-grid img { max-height: 36px; }
}
/* dark: no bright plates; dark-ink logos are inverted, colour logos lifted to light grey */
:root[data-theme="dark"] .logo-grid li { background: var(--s1); }
:root[data-theme="dark"] .logo-grid li[data-ondark="invert"] img { filter: grayscale(1) invert(1) brightness(.92); opacity: .72; }
:root[data-theme="dark"] .logo-grid li[data-ondark="lift"] img { filter: grayscale(1) brightness(1.55) contrast(.95); opacity: .72; }
:root[data-theme="dark"] .logo-grid li[data-ondark="white"] img { filter: grayscale(1) brightness(1.05); opacity: .72; }
:root[data-theme="dark"] .logo-grid li:hover img { opacity: 1; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-grid li { background: var(--s1); }
  :root:not([data-theme="light"]) .logo-grid li[data-ondark="invert"] img { filter: grayscale(1) invert(1) brightness(.92); opacity: .72; }
  :root:not([data-theme="light"]) .logo-grid li[data-ondark="lift"] img { filter: grayscale(1) brightness(1.55) contrast(.95); opacity: .72; }
  :root:not([data-theme="light"]) .logo-grid li[data-ondark="white"] img { filter: grayscale(1) brightness(1.05); opacity: .72; }
  :root:not([data-theme="light"]) .logo-grid li:hover img { opacity: 1; }
}
@media (min-width: 1000px) {
  .logo-grid { grid-template-columns: repeat(9, 1fr); }
}

/* ---------- Case studies ---------- */
.cases { display: grid; gap: var(--sp-5); }
.cases-pair { display: grid; gap: var(--sp-5); }
.case-card {
  position: relative;
  display: grid;
  gap: var(--sp-6);
  padding: var(--sp-5);
  isolation: isolate;
  overflow: hidden;
}
.case-card::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), var(--glow), transparent 65%);
  opacity: 0;
  transition: opacity var(--d3) var(--ease);
  pointer-events: none;
}
@media (hover: hover) and (pointer: fine) {
  .case-card:hover::before { opacity: 1; }
}
.case-visual { display: grid; gap: var(--sp-5); align-content: start; }
.case-text { display: grid; align-content: start; }
.case-sector {
  margin-block-end: var(--sp-2);
  font-size: .8125rem;
  font-weight: 500;
  color: var(--t3);
}
.case-card h3 { font-size: 1.5rem; letter-spacing: -0.02em; }
:lang(ar) .case-card h3 { font-size: 1.3125rem; letter-spacing: 0; }
.case-brief { margin-block-start: var(--sp-3); color: var(--t2); }
:lang(ar) .card p, :lang(ar) .card li { line-height: 1.75; }
.case-sub, .case-meta dt, .outcome-label {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--t3);
}
:lang(ar) .case-sub, :lang(ar) .case-meta dt, :lang(ar) .outcome-label {
  letter-spacing: 0; text-transform: none; font-size: .875rem;
}
.case-sub { margin-block: var(--sp-5) var(--sp-3); }
.check-list { display: grid; gap: var(--sp-3); }
.check-list li { display: flex; gap: 10px; align-items: flex-start; }
.check-list .i { width: 18px; height: 18px; margin-block-start: 3px; color: var(--acc); }
:lang(ar) .check-list .i { margin-block-start: 7px; }
.outcome {
  margin-block-start: var(--sp-5);
  padding: var(--sp-5);
  border-radius: var(--r-md);
  background: var(--s2);
  border: 1px solid var(--b1);
}
.section-alt .outcome { background: var(--s1); }
.outcome-metric {
  margin-block-start: var(--sp-2);
  font-size: clamp(2.25rem, 1.9rem + 1.6vw, 3rem);
  line-height: 1;
  font-weight: 650;
  letter-spacing: -0.04em;
  color: var(--acc);
}
:lang(ar) .outcome-metric { letter-spacing: 0; font-weight: 700; line-height: 1.2; }
.outcome-caption { margin-block-start: var(--sp-2); font-weight: 500; color: var(--t1); }
.outcome-sup { display: grid; gap: var(--sp-3); margin-block-start: var(--sp-4); }
.outcome-sup li {
  display: grid;
  gap: 2px;
  padding-block-start: var(--sp-3);
  border-block-start: 1px solid var(--b1);
}
.sup-value { font-size: 1.25rem; font-weight: 650; letter-spacing: -0.02em; }
:lang(ar) .sup-value { letter-spacing: 0; font-weight: 700; }
.sup-label { font-size: .875rem; color: var(--t2); }
.case-meta { display: grid; gap: var(--sp-3); margin-block-start: var(--sp-5); padding-block-start: var(--sp-4); border-block-start: 1px solid var(--b1); }
.case-meta dd { margin-block-start: 2px; font-size: .9375rem; color: var(--t2); }

/* charts (generated by build.py) */
.case-chart {
  padding: var(--sp-4);
  border-radius: var(--r-md);
  background: var(--s2);
  border: 1px solid var(--b1);
}
.chart { width: 100%; height: auto; overflow: visible; }
.chart text { font-family: inherit; font-size: 13px; fill: var(--t2); }
:lang(ar) .chart text { font-size: 14px; }
.chart .lab.acc, .chart .val.acc { fill: var(--acc); }
.chart .strong { font-weight: 650; }
.chart .val { font-weight: 650; fill: var(--t1); font-variant-numeric: tabular-nums; }
.chart .val.on-acc { fill: var(--on-acc); }
.chart .tl { font-size: 11px; fill: var(--t3); font-variant-numeric: tabular-nums; }
:lang(ar) .chart .tl { font-size: 12px; }
.chart .sq { fill: var(--acc-soft); stroke: var(--acc-line); stroke-width: 1; }
.chart .sq.start { fill: var(--acc-fill); stroke: var(--acc-fill); }
.chart .bracket, .chart .axis, .chart .tick { fill: none; stroke: var(--b2); stroke-width: 1.25; }
.chart .ref { stroke: var(--t3); stroke-width: 1; stroke-dasharray: 3 4; opacity: .7; }
.chart .bar-muted { fill: var(--bar-muted); }
.chart .bar-acc, .chart .dot { fill: var(--acc-fill); }
.chart .ghost { fill: none; stroke: var(--acc-line); stroke-dasharray: 2 2; }
.ch-legend { display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-4); margin-block-start: var(--sp-2); font-size: .8125rem; color: var(--t3); }
.ch-legend li, .sat-legend li { display: inline-flex; align-items: center; gap: 6px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 3px; flex: none; }
.sw-muted { background: var(--bar-muted); }
.sw-acc { background: var(--acc-fill); }
.minis { display: grid; gap: var(--sp-3); }
.mini-chart {
  display: grid;
  gap: var(--sp-2);
  align-content: start;
  padding: var(--sp-4);
  border-radius: var(--r-md);
  border: 1px solid var(--b1);
  background: var(--s2);
}
.mini-chart figcaption { display: grid; gap: 0; }
.mc-title { font-size: .9375rem; font-weight: 600; color: var(--t1); }
.mini-note { font-size: .8125rem; color: var(--t3); }
.mini-chart .chart { max-width: 270px; justify-self: end; }

@media (min-width: 560px) {
  .mini-chart { grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr); align-items: center; gap: var(--sp-5); padding-inline: var(--sp-5); }
}
@media (min-width: 720px) {
  .case-card { padding: var(--sp-6); }
}
@media (min-width: 960px) {
  .case-card.is-featured {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: var(--sp-7);
    padding: var(--sp-7);
  }
  .case-card.is-featured h3 { font-size: 1.875rem; }
  :lang(ar) .case-card.is-featured h3 { font-size: 1.625rem; }
  .cases-pair { grid-template-columns: 1fr 1fr; }
  .cases-pair .case-card { align-content: start; }
}

.more { margin-block-start: var(--sp-7); }
.more-title { margin-block-end: var(--sp-4); font-size: 1rem; color: var(--t2); font-weight: 600; }
.more-grid {
  display: grid;
  border-block-start: 1px solid var(--b1);
}
.more-grid li {
  padding-block: var(--sp-4);
  border-block-end: 1px solid var(--b1);
}
.more-name { font-weight: 600; }
.more-sector { font-size: .8125rem; color: var(--t3); }
.more-line { margin-block-start: 6px; font-size: .9375rem; color: var(--t1); }
@media (min-width: 720px) {
  .more-grid { grid-template-columns: repeat(2, 1fr); column-gap: var(--sp-6); }
}
@media (min-width: 1000px) {
  .more-grid { grid-template-columns: repeat(5, 1fr); column-gap: 0; border-block-end: 1px solid var(--b1); }
  .more-grid li { border-block-end: 0; padding: var(--sp-5) var(--sp-4); }
  .more-grid li:first-child { padding-inline-start: 0; }
  .more-grid li + li { border-inline-start: 1px solid var(--b1); }
}
.footnote { margin-block-start: var(--sp-5); font-size: .8125rem; color: var(--t3); }

/* ---------- Method ---------- */
.method-lower { display: grid; gap: var(--sp-6); margin-block-start: var(--sp-7); }
.method-grid { display: grid; gap: var(--sp-3); }
.method-card { display: flex; gap: var(--sp-4); align-items: flex-start; padding: var(--sp-4) var(--sp-5); }
.method-card h4 { font-size: 1rem; }
.method-card p:last-child { margin-block-start: 4px; font-size: .9375rem; color: var(--t2); }
.method-icon {
  display: inline-grid;
  place-items: center;
  width: 44px; height: 44px;
  flex: none;
  margin-block-end: var(--sp-5);
  border-radius: var(--r-md);
  background: var(--acc-soft);
  color: var(--acc);
  border: 1px solid var(--acc-line);
}
.method-card .method-icon { width: 40px; height: 40px; margin: 0; }
.method-icon .i { width: 22px; height: 22px; }
.method-num {
  font-size: .75rem;
  font-weight: 600;
  color: var(--t3);
  font-variant-numeric: tabular-nums;
}
@media (min-width: 1000px) {
  .method-lower { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--sp-7); align-items: start; }
}

/* ---------- Branch Satiety Curve (signature) ---------- */
.satiety { padding: var(--sp-5); }
.satiety:hover { border-color: var(--b1); }
@media (min-width: 720px) { .satiety { padding: var(--sp-6); } }
@media (min-width: 1100px) { .satiety { padding: var(--sp-7); } }
.sat-head { max-width: 64ch; }
.sat-head h3 { font-size: clamp(1.375rem, 1.2rem + .8vw, 1.75rem); letter-spacing: -0.02em; }
:lang(ar) .sat-head h3 { letter-spacing: 0; }
.sat-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--sp-4) var(--sp-5);
  margin-block-start: var(--sp-5);
}
.sat-range { flex: 1 1 320px; display: grid; gap: var(--sp-2); }
.sat-range label { font-size: .875rem; font-weight: 600; }
.sat-city {
  display: inline-block;
  margin-inline-start: 6px;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--acc-soft);
  color: var(--acc);
  font-size: .75rem;
  font-weight: 600;
}
.range-row { display: flex; align-items: center; gap: var(--sp-4); }
.sat-out {
  min-width: 2.2ch;
  font-size: 1.75rem;
  font-weight: 650;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--acc);
  text-align: center;
}
input[type="range"] {
  flex: 1;
  min-width: 0;
  height: 44px;
  margin: 0;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track { height: 4px; border-radius: 4px; background: linear-gradient(to right, var(--acc-fill) var(--p, 50%), var(--b2) var(--p, 50%)); }
[dir="rtl"] input[type="range"]::-webkit-slider-runnable-track { background: linear-gradient(to left, var(--acc-fill) var(--p, 50%), var(--b2) var(--p, 50%)); }
#sat-n { --p: 63.64%; }
input[type="range"]::-moz-range-track { height: 4px; border-radius: 4px; background: var(--b2); }
input[type="range"]::-moz-range-progress { height: 4px; border-radius: 4px; background: var(--acc-fill); }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  margin-block-start: -10px;
  border-radius: 50%;
  background: var(--acc-fill);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--acc-line), 0 2px 8px rgba(0, 0, 0, .25);
  transition: transform var(--d1) var(--ease);
}
input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--acc-fill);
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 1px var(--acc-line);
}
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.12); }
input[type="range"]:focus-visible { outline: none; }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--acc); }
input[type="range"]:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 2px var(--bg), 0 0 0 4px var(--acc); }
.no-js .sat-controls, .no-js .sat-live { display: none; }
.sat-nojs { margin-block-start: var(--sp-4); font-size: .875rem; color: var(--t3); }
.js .sat-nojs { display: none; }
.sat-stage { display: grid; gap: var(--sp-5); margin-block-start: var(--sp-5); }
.sat-map-wrap, .sat-chart-wrap {
  padding: var(--sp-4);
  border-radius: var(--r-md);
  background: var(--s2);
  border: 1px solid var(--b1);
}
.section-alt .sat-map-wrap, .section-alt .sat-chart-wrap { background: var(--s1); }
.sat-map, .sat-chart { width: 100%; height: auto; display: block; }
.sat-map circle { fill: var(--dot-off); transition: fill var(--d2) var(--ease); }
.sat-map .sat-dots .r { fill: var(--acc); }
.sat-map .sat-dots .c { fill: var(--amber); }
.sat-map .ring {
  fill: none;
  stroke: var(--acc-line);
  stroke-width: 1;
  stroke-dasharray: 3 4;
  opacity: 0;
  transform-box: fill-box;
  transform-origin: center;
  transform: scale(.7);
  transition: opacity var(--d3) var(--ease), transform var(--d3) var(--ease);
}
.sat-map .ring.on { opacity: 1; transform: none; }
.sat-map .ring.cur { stroke: var(--acc); stroke-dasharray: none; stroke-width: 1.5; }
.sat-map .site circle { fill: var(--s1); stroke: var(--t3); stroke-width: 1; stroke-dasharray: 2 2; transition: fill var(--d2) var(--ease), stroke var(--d2) var(--ease); }
.sat-map .site text { font-size: 9px; font-weight: 700; fill: var(--t3); text-anchor: middle; font-variant-numeric: tabular-nums; }
.sat-map .site.on circle { fill: var(--t1); stroke: var(--t1); stroke-dasharray: none; }
.sat-map .site.on text { fill: var(--bg); }
.sat-map .site.cur circle { fill: var(--acc-fill); stroke: var(--bg); stroke-width: 2; }
.sat-map .site.cur text { fill: var(--on-acc); }
.sat-legend { display: flex; flex-wrap: wrap; gap: var(--sp-2) var(--sp-4); margin-block-start: var(--sp-3); font-size: .8125rem; color: var(--t2); }
.sat-legend .sw { border-radius: 50%; }
.sw-r { background: var(--acc); }
.sw-c { background: var(--amber); }
.sw-o { background: var(--dot-off); }
.sw-s { background: transparent; border: 1px dashed var(--t3); }
.sat-chart-title { margin-block-end: var(--sp-2); font-size: .875rem; font-weight: 600; }
.sat-chart text { font-family: inherit; fill: var(--t3); font-size: 11px; font-variant-numeric: tabular-nums; }
:lang(ar) .sat-chart text { font-size: 12px; }
.sat-chart .grid { stroke: var(--b1); stroke-width: 1; }
.sat-chart .ylab.th { fill: var(--amber); font-weight: 700; }
.sat-chart .bar { fill: var(--bar-muted); opacity: .55; transition: fill var(--d2) var(--ease), opacity var(--d2) var(--ease); }
.sat-chart .bar.on { fill: var(--acc-fill); opacity: 1; }
.sat-chart .bar.below { fill: var(--amber-soft); opacity: 1; stroke: var(--amber); stroke-width: 1; stroke-dasharray: 2 2; }
.sat-chart .bar.on.below { fill: var(--amber); stroke: none; }
.sat-chart .bar.cur { stroke: var(--t1); stroke-width: 1.5; stroke-dasharray: none; }
.sat-chart .curve-bg { fill: none; stroke: var(--t3); stroke-width: 1.25; stroke-dasharray: 2 4; opacity: .6; }
.sat-chart .curve { fill: none; stroke: var(--t1); stroke-width: 2; stroke-linecap: round; }
.sat-chart [data-sat-clip] { transition: width var(--d3) var(--ease), x var(--d3) var(--ease); }
.sat-chart .sat-line { stroke: var(--amber); stroke-width: 1.5; stroke-dasharray: 6 5; }
.sat-chart .sat-note line { stroke: var(--amber); stroke-width: 1; }
.sat-chart .sat-note text { fill: var(--amber); font-weight: 650; font-size: 11.5px; }
.sat-chart .xlab.on { fill: var(--t1); font-weight: 650; }
.sat-chart .axis-title { fill: var(--t3); font-size: 11px; }
.is-switching .sat-map *, .is-switching .sat-chart * { transition: none !important; }
.sat-live {
  margin-block-start: var(--sp-4);
  padding-inline-start: var(--sp-4);
  border-inline-start: 2px solid var(--acc);
  font-size: .9375rem;
  color: var(--t1);
  min-height: 3.2em;
}
.sat-details { margin-block-start: var(--sp-4); }
.sat-details summary {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-size: .875rem;
  font-weight: 600;
  color: var(--acc);
  cursor: pointer;
}
.sat-table { width: 100%; margin-block-start: var(--sp-2); border-collapse: collapse; font-size: .875rem; font-variant-numeric: tabular-nums; }
.sat-table caption { text-align: start; font-size: .8125rem; color: var(--t3); padding-block-end: var(--sp-2); }
.sat-table th, .sat-table td { padding: 8px 10px; text-align: start; border-block-end: 1px solid var(--b1); }
.sat-table thead th { font-size: .75rem; color: var(--t3); font-weight: 600; }
.sat-table tr.below td:last-child { color: var(--amber); font-weight: 600; }
.sat-caption { margin-block-start: var(--sp-4); font-size: .8125rem; line-height: 1.55; color: var(--t3); max-width: 90ch; }
@media (min-width: 900px) {
  .sat-stage { grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr); align-items: stretch; }
  .sat-chart-wrap { display: flex; flex-direction: column; justify-content: center; }
}

.breaks { margin-block-start: var(--sp-6); padding: var(--sp-5); }
.breaks:hover { border-color: var(--b1); }
.breaks-title { margin-block-end: var(--sp-3); }
.break-row {
  display: grid;
  gap: var(--sp-2);
  padding-block: var(--sp-5);
  border-block-end: 1px solid var(--b1);
}
.break-row:last-child { border-block-end: 0; padding-block-end: 0; }
.break-tag {
  display: block;
  margin-block-end: 2px;
  font-size: .6875rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--t3);
}
:lang(ar) .break-tag { letter-spacing: 0; font-size: .8125rem; text-transform: none; }
.break-before { color: var(--t2); }
.break-after { color: var(--t1); font-weight: 600; }
.break-arrow { color: var(--acc); }
.break-arrow .i { transform: rotate(90deg); }
.break-proof {
  justify-self: start;
  margin-block-start: var(--sp-2);
  padding: 6px 12px;
  border-radius: var(--r-sm);
  background: var(--acc-soft);
  color: var(--acc);
  font-size: .8125rem;
  font-weight: 600;
}
.how-work { margin-block-start: var(--sp-6); padding: var(--sp-5); }
.how-work:hover { border-color: var(--b1); }
.how-work-title { margin-block-end: var(--sp-3); }
.how-list { list-style: decimal; padding-inline-start: 1.6em; display: grid; gap: var(--sp-2); color: var(--t2); line-height: 1.7; max-width: 75ch; }
.how-list li::marker { color: var(--t3); font-variant-numeric: tabular-nums; }
@media (min-width: 960px) {
  .how-work { padding: var(--sp-6) var(--sp-7); }
  .breaks { padding: var(--sp-6) var(--sp-7); }
  .break-row {
    grid-template-columns: minmax(0, 1fr) 40px minmax(0, 1fr) minmax(0, .9fr);
    align-items: center;
    gap: var(--sp-5);
  }
  .break-arrow .i { transform: none; }
  [dir="rtl"] .break-arrow .flip { transform: scaleX(-1); }
  .break-proof { justify-self: end; margin: 0; text-align: end; }
}

/* ---------- Lab ---------- */
.lab-grid { display: grid; gap: var(--sp-5); align-items: start; }
@media (min-width: 1000px) {
  .lab-grid { grid-template-columns: 1fr 1fr; }
}
.tool { padding: var(--sp-5); }
.tool:hover { border-color: var(--b1); }
@media (min-width: 720px) { .tool { padding: var(--sp-6); } }
.tool-head { margin-block-end: var(--sp-5); }
.tool-kicker {
  margin-block-end: 6px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--acc);
}
:lang(ar) .tool-kicker { letter-spacing: 0; text-transform: none; font-size: .875rem; }
.tool h3 { font-size: 1.5rem; }
:lang(ar) .tool h3 { font-size: 1.3125rem; }
.tool-desc { margin-block-start: 6px; color: var(--t2); }

/* quiz */
.quiz-progress {
  display: none;
  height: 4px;
  margin-block-end: var(--sp-5);
  border-radius: 4px;
  background: var(--s2);
  overflow: hidden;
}
.quiz-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: var(--acc-fill);
  border-radius: inherit;
  transition: width var(--d3) var(--ease);
}
.js .quiz-progress { display: block; }
.q + .q { margin-block-start: var(--sp-6); }
.js .quiz .q + .q { margin-block-start: 0; }
.js .quiz .q:not(.is-current) { display: none; }
.q legend { display: grid; gap: 4px; margin-block-end: var(--sp-4); }
.q-step { font-size: .8125rem; font-weight: 500; color: var(--t3); }
.q-text { font-size: 1.125rem; font-weight: 600; line-height: 1.4; color: var(--t1); }
:lang(ar) .q-text { line-height: 1.6; }
.opts { display: grid; gap: var(--sp-2); }
.opt {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-height: 52px;
  padding: 13px 16px;
  border: 1px solid var(--b1);
  border-radius: var(--r-md);
  background: var(--s1);
  cursor: pointer;
  transition: border-color var(--d1) var(--ease), background-color var(--d1) var(--ease);
}
.section-alt .opt { background: var(--bg); }
.opt:hover { border-color: var(--b2); }
.opt input {
  appearance: none;
  -webkit-appearance: none;
  flex: none;
  width: 20px; height: 20px;
  margin: 2px 0 0;
  border: 1.5px solid var(--t3);
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
}
:lang(ar) .opt input { margin-block-start: 5px; }
.opt input::after {
  content: "";
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--acc-fill);
  transform: scale(0);
  transition: transform var(--d1) var(--ease);
}
.opt input:checked { border-color: var(--acc); }
.opt input:checked::after { transform: scale(1); }
.opt input:focus-visible { outline: 2px solid var(--acc); outline-offset: 2px; }
.opt:has(input:checked) { border-color: var(--acc); background: var(--acc-soft); }
.opt-text { font-size: .9375rem; color: var(--t1); }
.quiz-msg { min-height: 1.5em; margin-block-start: var(--sp-3); font-size: .875rem; color: var(--bad); }
.quiz-nav { display: none; justify-content: space-between; gap: var(--sp-3); margin-block-start: var(--sp-2); }
.js .quiz-nav { display: flex; }
.quiz-nav [data-quiz-prev][hidden] { display: inline-flex; visibility: hidden; }
.nojs-note { margin-block-start: var(--sp-5); font-size: .875rem; color: var(--t3); }
.js .nojs-note { display: none; }

.quiz-result:focus { outline: none; }
.score-row { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.score-label { font-size: .875rem; color: var(--t3); }
.score-value {
  font-size: 3.5rem;
  line-height: 1;
  font-weight: 650;
  letter-spacing: -0.04em;
  color: var(--t1);
  font-variant-numeric: tabular-nums;
}
.score-value small { font-size: 1.25rem; color: var(--t3); letter-spacing: 0; font-weight: 500; }
.meter { height: 8px; margin-block: var(--sp-4); border-radius: 8px; background: var(--s2); overflow: hidden; }
.meter span { display: block; height: 100%; border-radius: inherit; background: var(--acc-fill); }
.meter[data-tier="0"] span { background: var(--bad); }
.meter[data-tier="1"] span { background: var(--warn); }
.tier-title { font-size: 1.25rem; }
.tier-note { margin-block-start: 6px; color: var(--t2); }
.recs { display: grid; gap: var(--sp-3); margin-block: var(--sp-5); }
.result-ctas { display: flex; flex-wrap: wrap; gap: var(--sp-3); }

/* calculator */
.fields { display: grid; gap: var(--sp-4); }
@media (min-width: 560px) { .fields { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 6px; align-content: start; }
.field label { font-size: .875rem; font-weight: 600; color: var(--t1); }
.hint { font-size: .8125rem; line-height: 1.45; color: var(--t3); }
:lang(ar) .hint { line-height: 1.65; }
.input-wrap { position: relative; }
input[type="text"], input[type="email"], input[type="number"], select, textarea {
  width: 100%;
  min-height: 48px;
  padding: 11px 14px;
  border: 1px solid var(--b2);
  border-radius: var(--r-md);
  background: var(--bg);
  color: var(--t1);
  font-size: 1rem;
  line-height: 1.4;
  transition: border-color var(--d1) var(--ease), box-shadow var(--d1) var(--ease);
}
.section-alt input, .section-alt select, .section-alt textarea { background: var(--s1); }
.card input, .card select, .card textarea { background: var(--bg); }
input:hover, select:hover, textarea:hover { border-color: var(--t3); }
input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: none;
  border-color: var(--acc);
  box-shadow: 0 0 0 3px var(--acc-line);
  border-radius: var(--r-md);
}
input[aria-invalid="true"] { border-color: var(--bad); }
textarea { resize: vertical; min-height: 96px; }
select {
  appearance: none;
  -webkit-appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--t3) 50%), linear-gradient(135deg, var(--t3) 50%, transparent 50%);
  background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-inline-end: 40px;
}
[dir="rtl"] select { background-position: 15px 50%, 20px 50%; }
::placeholder { color: var(--t3); opacity: 1; }
.input-wrap input { padding-inline-end: 56px; }
.input-unit {
  position: absolute;
  inset-inline-end: 14px;
  inset-block-start: 50%;
  transform: translateY(-50%);
  font-size: .875rem;
  color: var(--t3);
  pointer-events: none;
}
input[type="number"] { -moz-appearance: textfield; appearance: textfield; }
input[type="number"]::-webkit-outer-spin-button, input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.example-note { margin-block-start: var(--sp-4); }
.calc-out {
  margin-block-start: var(--sp-5);
  padding: var(--sp-5);
  border-radius: var(--r-md);
  background: var(--s2);
}
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4) var(--sp-5); }
.stat dt { font-size: .8125rem; color: var(--t2); }
.stat dd { margin-block-start: 2px; font-size: 1.25rem; font-weight: 650; letter-spacing: -0.02em; color: var(--t1); }
:lang(ar) .stat dd { letter-spacing: 0; font-weight: 700; }
.stat:first-child dd { color: var(--acc); }
.calc-out[data-tone="mid"] .stat:first-child dd { color: var(--warn); }
.calc-out[data-tone="bad"] .stat:first-child dd { color: var(--bad); }
.calc-out[data-tone=""] .stat:first-child dd { color: var(--t1); }
.verdict {
  margin-block-start: var(--sp-4);
  padding-block-start: var(--sp-4);
  border-block-start: 1px solid var(--b1);
  font-size: .9375rem;
  font-weight: 500;
  display: flex;
  gap: 10px;
  align-items: baseline;
}
.verdict::before {
  content: "";
  flex: none;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--t3);
  transform: translateY(-1px);
}
.verdict[data-tone="good"]::before { background: var(--acc); }
.verdict[data-tone="mid"]::before { background: var(--warn); }
.verdict[data-tone="bad"]::before { background: var(--bad); }
.formula { margin-block-start: var(--sp-5); }
.formula h4 { font-size: .875rem; color: var(--t2); margin-block-end: var(--sp-2); }
.formula ul { display: grid; gap: 6px; }
.formula li {
  padding-inline-start: 12px;
  border-inline-start: 2px solid var(--b2);
  font-size: .8125rem;
  line-height: 1.5;
  color: var(--t2);
}

/* ---------- About ---------- */
.about-grid { display: grid; gap: var(--sp-7); }
.about-portrait { width: min(100%, 440px); }
.about-body .section-head { margin-block-end: var(--sp-5); }
.lead { font-size: 1.125rem; line-height: 1.65; color: var(--t1); max-width: 65ch; }
:lang(ar) .lead { line-height: 1.9; }
.about-career { margin-block-start: var(--sp-4); max-width: 65ch; color: var(--t2); }
.about-block { margin-block-start: var(--sp-6); }
.chips { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.chips li {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--b1);
  background: var(--bg);
  font-size: .875rem;
  color: var(--t2);
}
.timeline { display: grid; margin-block-end: var(--sp-3); }
.timeline li {
  position: relative;
  padding-inline-start: var(--sp-5);
  padding-block-end: var(--sp-4);
  border-inline-start: 1px solid var(--b2);
}
.timeline li:last-child { padding-block-end: 0; border-color: transparent; }
.timeline li::before {
  content: "";
  position: absolute;
  inset-inline-start: -5px;
  inset-block-start: 7px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--s1);
  border: 1.5px solid var(--t3);
}
.timeline li.is-current::before { background: var(--acc); border-color: var(--acc); box-shadow: 0 0 0 3px var(--acc-soft); }
.tl-dates { font-size: .8125rem; color: var(--t3); }
.tl-role { font-weight: 600; }
.tl-org { font-size: .9375rem; color: var(--t2); }
.about-cols { display: grid; gap: 0 var(--sp-6); }
.certs { display: grid; gap: var(--sp-3); }
.cert-title { font-size: .9375rem; font-weight: 500; line-height: 1.4; }
.cert-meta { font-size: .8125rem; color: var(--t3); }
.about-ctas { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-block-start: var(--sp-6); }
@media (min-width: 960px) {
  .about-grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--sp-8); align-items: start; }
  .about-portrait { position: sticky; inset-block-start: calc(var(--header-h) + 32px); }
  .about-cols { grid-template-columns: minmax(0, 2fr) minmax(0, 3fr); }
  .about-cols .certs { grid-template-columns: 1fr; }
}

/* ---------- Publications ---------- */
.pub-grid { display: grid; gap: var(--sp-5); }
@media (min-width: 800px) { .pub-grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1100px) { .pub-grid:has(> li:nth-child(3):last-child) { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 800px) and (max-width: 1099px) { .pub-grid > li:nth-child(3):last-child { grid-column: 1 / -1; } }
.pub-card { position: relative; display: flex; flex-direction: column; padding: var(--sp-6); }
.pub-card h3 { font-size: 1.375rem; margin-block-start: 2px; }
:lang(ar) .pub-card h3 { font-size: 1.25rem; }
.pub-card > p:not(.tool-kicker):not(.pub-foot) { margin-block-start: var(--sp-3); color: var(--t2); }
.stretched::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.stretched:focus-visible { outline: none; }
.pub-card:has(.stretched:focus-visible) { outline: 2px solid var(--acc); outline-offset: 2px; }
.pub-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-block-start: auto;
  padding-block-start: var(--sp-5);
}
.link-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: .9375rem;
  color: var(--acc);
}
.link-cta .i { width: 18px; height: 18px; }

/* ---------- Contact ---------- */
.section-contact { background: var(--s1); border-block-start: 1px solid var(--b1); }
.section-contact .card { background: var(--bg); }
.section-contact .section-head { margin-block-end: var(--sp-6); }
.contact-grid { display: grid; gap: var(--sp-5); align-items: start; }

.cal-card:hover, .form-card:hover { border-color: var(--b1); }
.contact-side { display: grid; gap: var(--sp-5); }
.form-card { padding: var(--sp-5); }
@media (min-width: 720px) { .form-card { padding: var(--sp-6); } }
.form-card h3 { margin-block-end: var(--sp-4); }
.brief-form { display: grid; gap: var(--sp-4); }
.field-row { display: grid; gap: var(--sp-4); }
@media (min-width: 480px) { .field-row { grid-template-columns: 1fr 1fr; } }
.form-status { font-size: .875rem; color: var(--t2); }
.form-status:empty { display: none; }
.form-status[data-tone="bad"] { color: var(--bad); }
.form-status[data-tone="good"] { color: var(--acc); }
.form-status a { color: var(--acc); text-decoration: underline; text-underline-offset: 3px; }
.chip-list { display: grid; gap: var(--sp-2); }
.chip {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 10px 16px;
  border: 1px solid var(--b1);
  border-radius: var(--r-md);
  background: var(--bg);
  font-weight: 600;
  font-size: .9375rem;
  transition: border-color var(--d1) var(--ease);
}
.chip:hover { border-color: var(--acc-line); }
.chip .i { color: var(--acc); }
.chip-meta { margin-inline-start: auto; font-weight: 400; font-size: .875rem; color: var(--t3); }
@media (min-width: 1000px) {
  .contact-grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); }
}

/* ---------- Footer ---------- */
.site-footer {
  padding-block: var(--sp-7) calc(var(--sp-6) + env(safe-area-inset-bottom));
  border-block-start: 1px solid var(--b1);
  font-size: .9375rem;
}
.footer-top { display: grid; gap: var(--sp-5); }
.footer-line { color: var(--t1); font-weight: 500; }
.footer-line a { display: inline-flex; align-items: center; min-height: 44px; }
.footer-line a:hover { color: var(--acc); }
.footer-links { display: flex; flex-wrap: wrap; gap: 0 var(--sp-2); margin-inline: -8px; } /* every wrapped row lines up with the text above */
.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding-inline: 8px;
  color: var(--t2);
  border-radius: 8px;
}
.footer-links a:hover { color: var(--t1); }
.footer-links .i { width: 18px; height: 18px; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-2);
  margin-block-start: var(--sp-5);
  padding-block-start: var(--sp-5);
  border-block-start: 1px solid var(--b1);
  font-size: .8125rem;
  color: var(--t3);
}
/* the identity line sits above the link row: footer.links (content.json) is too long to share a line with it */
.footer-top { gap: var(--sp-3); }

/* ---------- Mobile booking bar ---------- */
.mobile-bar {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  z-index: 40;
  display: flex;
  gap: var(--sp-2);
  padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom));
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  backdrop-filter: saturate(180%) blur(18px);
  border-block-start: 1px solid var(--b1);
  transform: translateY(110%);
  visibility: hidden;
  transition: transform var(--d2) var(--ease), visibility 0s linear var(--d2);
}
.mobile-bar .btn { flex: 1; }
.mobile-bar.is-visible {
  transform: none;
  visibility: visible;
  transition: transform var(--d2) var(--ease), visibility 0s;
}
@media (min-width: 768px) { .mobile-bar { display: none; } }
@media (max-width: 767px) {
  .js .site-footer { padding-block-end: calc(96px + env(safe-area-inset-bottom)); }
}

/* ---------- 404 ---------- */
.notfound { min-height: calc(100dvh - var(--header-h) - 200px); display: grid; align-items: center; }
.nf-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--sp-7); }
.nf-code { font-size: .875rem; font-weight: 600; color: var(--acc); letter-spacing: .1em; margin-block-end: var(--sp-2); }
.nf-block h1, .nf-block h2 { font-size: var(--fs-h2); }
.nf-block .btn { margin-block-start: var(--sp-5); max-width: 100%; white-space: normal; text-align: center; }
.nf-block .btn + .btn { margin-inline-start: var(--sp-3); }
@media (min-width: 800px) { .nf-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }

/* ---------- Reveal (enabled by JS only when motion is allowed) ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal-on [data-reveal] {
    opacity: 0;
    transform: translateY(8px);
    transition: opacity var(--d3) var(--ease), transform var(--d3) var(--ease);
  }
  .reveal-on [data-reveal].is-in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Category definition (Method) ---------- */
.definition {
  max-width: 68ch;
  margin-block: 0 var(--sp-7);
  padding-block: var(--sp-2);
  padding-inline-start: var(--sp-5);
  border-inline-start: 3px solid var(--acc);
}
.definition-title { font-size: var(--fs-h3); margin-block-end: var(--sp-3); }
.definition-body { color: var(--t2); font-size: 1.0625rem; line-height: 1.7; }
:lang(ar) .definition-body { line-height: 1.85; }

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 880px; }
.faq-list { border-block-start: 1px solid var(--b1); }
.faq-item { border-block-end: 1px solid var(--b1); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  min-height: 44px;
  padding-block: var(--sp-5);
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-q { font-size: 1.0625rem; font-weight: 600; line-height: 1.4; margin: 0; }
.faq-item summary:hover .faq-q { color: var(--acc); }
.faq-item summary:focus-visible { outline: 2px solid var(--acc); outline-offset: 4px; border-radius: var(--r-sm); }
.faq-icon {
  position: relative;
  flex: none;
  width: 28px;
  height: 28px;
  border: 1px solid var(--b2);
  border-radius: 50%;
}
.faq-icon::before, .faq-icon::after {
  content: "";
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 50%;
  width: 11px;
  height: 1.5px;
  background: currentColor;
  translate: -50% -50%;
}
[dir="rtl"] .faq-icon::before, [dir="rtl"] .faq-icon::after { translate: 50% -50%; }
.faq-icon::after { rotate: 90deg; }
.faq-item[open] .faq-icon::after { rotate: 0deg; }
.faq-item[open] .faq-icon { border-color: var(--acc-line); color: var(--acc); }
.faq-a { padding-block-end: var(--sp-5); max-width: 68ch; }
.faq-a p { color: var(--t2); line-height: 1.7; }
:lang(ar) .faq-a p { line-height: 1.85; }
@media (prefers-reduced-motion: no-preference) {
  .faq-icon::after { transition: rotate var(--d2) var(--ease); }
}

/* ---------- Review steps (Contact) ---------- */
.steps { margin-block: 0 var(--sp-6); }
.step-list {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 1fr;
  counter-reset: none;
}
@media (min-width: 760px) {
  .step-list { grid-template-columns: repeat(3, 1fr); gap: var(--sp-5); }
}
.step { display: flex; gap: var(--sp-3); align-items: flex-start; }
.step-num {
  flex: none;
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--acc-soft);
  border: 1px solid var(--acc-line);
  color: var(--acc);
  font-weight: 700;
  font-size: .875rem;
  font-variant-numeric: tabular-nums;
}
.step-title { font-size: 1rem; font-weight: 600; margin-block-end: var(--sp-1); }
.step-body { color: var(--t2); font-size: .9375rem; line-height: 1.6; }

/* ---------- Forced colours ---------- */
@media (forced-colors: active) {
  .btn, .card, .opt, .chip { border: 1px solid CanvasText; }
  .opt input::after { background: CanvasText; }
}

/* ---------- Print ---------- */
@media print {
  :root { --bg: #fff; --s1: #fff; --s2: #fff; --t1: #000; --t2: #222; --t3: #444; --acc: #000; --b1: #ccc; --b2: #999; }
  body { font-size: 11pt; }
  .site-header, .nav-sheet, .mobile-bar, .skip-link, .hero-ctas, .logos, #lab, .cal-card, .form-card, .about-ctas, .theme-toggle { display: none !important; }
  .section, .hero { padding-block: 16pt; }
  .section-alt, .section-contact { border: 0; }
  .card { border: 1px solid #ccc; break-inside: avoid; }
  .hero-portrait { width: 160px; }
  .hero::before { display: none; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 9pt; color: #444; }
  .chip a::after, .footer-links a::after { content: none; }
  .reveal-on [data-reveal] { opacity: 1 !important; transform: none !important; }
}

/* ==========================================================================
   v4 layer: hero blueprint + dot matrix, calculator gauge, offer ladder,
   click-to-load calendar, copy email, micro-interactions
   ========================================================================== */

/* ---------- Hero blueprint grid + 3 -> 33 dot matrix ---------- */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: center -1px;
  -webkit-mask-image: radial-gradient(ellipse 75% 70% at 50% 30%, #000 25%, transparent 78%);
  mask-image: radial-gradient(ellipse 75% 70% at 50% 30%, #000 25%, transparent 78%);
}
.dotm {
  display: grid;
  grid-template-rows: repeat(3, 6px);
  grid-auto-flow: column;
  grid-auto-columns: 6px;
  gap: 5px;
  margin-block: 12px 4px;
  inline-size: max-content;
}
.dotm i { display: block; width: 6px; height: 6px; border-radius: 50%; background: var(--acc); opacity: .55; }
.dotm i:nth-child(-n+3) { opacity: 1; box-shadow: 0 0 0 2px var(--acc-soft); }
.dotm i:nth-child(3) { margin-inline-end: 0; }
.dotm i:nth-child(n+4) { translate: 5px 0; }
[dir="rtl"] .dotm i:nth-child(n+4) { translate: -5px 0; }
@keyframes dotfill { from { opacity: .12; scale: .5; } }
@media (prefers-reduced-motion: no-preference) {
  .js .dotm i:nth-child(n+4) {
    animation: dotfill 360ms var(--ease) both;
    animation-delay: 450ms;
    animation-delay: calc(450ms + (sibling-index() - 4) * 25ms);
  }
}

/* ---------- Calculator: payback gauge + conditional CTA ---------- */
.gauge-wrap { margin-block-start: var(--sp-4); }
.gauge { width: 100%; height: auto; overflow: visible; }
.gauge .gz-good { fill: var(--acc-fill); opacity: .38; }
.gauge .gz-mid { fill: var(--amber); opacity: .4; }
.gauge .gz-bad { fill: var(--bad); opacity: .34; }
.gauge .gt { stroke: var(--t3); stroke-width: 1; }
.gauge text { font-family: inherit; font-size: 11px; fill: var(--t3); font-variant-numeric: tabular-nums; }
.g-marker { transition: transform var(--d3) var(--ease), opacity var(--d2) var(--ease); }
.g-marker path { fill: var(--t1); }
.g-marker line { stroke: var(--t1); stroke-width: 2; }
.g-marker.is-none { opacity: 0; }
.gauge-unit { margin-block-start: 2px; font-size: .75rem; color: var(--t3); text-align: center; }
.calc-cta { margin-block-start: var(--sp-3); }
.calc-cta[hidden] { display: none; }

/* ---------- Offer ladder (#book) ---------- */
.ladder { margin-block-end: var(--sp-6); }
.ladder-list { display: grid; gap: var(--sp-3); }
.ladder-step {
  position: relative;
  padding: var(--sp-4) var(--sp-5);
  border: 1px solid var(--b1);
  border-radius: var(--r-md);
  background: var(--bg);
}
.ladder-step.is-start { background: color-mix(in srgb, var(--acc-fill) 9%, var(--bg)); border-color: var(--acc-line); }
.ladder-top { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-block-end: var(--sp-3); }
.ladder-n {
  display: grid;
  place-items: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1px solid var(--b2);
  font-size: .8125rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.is-start .ladder-n { background: var(--acc-fill); border-color: transparent; color: var(--on-acc); }
.ladder-tag { font-size: .75rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--t3); }
:lang(ar) .ladder-tag { letter-spacing: 0; text-transform: none; font-size: .8125rem; }
.ladder-start {
  margin-inline-start: auto;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--acc-fill);
  color: var(--on-acc);
  font-size: .6875rem;
  font-weight: 700;
}
.ladder-title { font-size: 1rem; line-height: 1.35; }
.ladder-title a { text-decoration: underline; text-decoration-color: var(--acc-line); text-underline-offset: 4px; }
.ladder-title a:hover { color: var(--acc); }
.ladder-body { margin-block-start: 6px; font-size: .875rem; color: var(--t2); }
.ladder-cta { margin-block-start: var(--sp-4); }
.ladder-cta .btn { white-space: normal; }
@media (min-width: 900px) {
  .ladder-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
    border: 1px solid var(--b1);
    border-radius: var(--r-lg);
    background: var(--bg);
  }
  .ladder-step { padding: var(--sp-5); border: 0; border-radius: 0; background: transparent; }
  .ladder-step:first-child { border-start-start-radius: var(--r-lg); border-end-start-radius: var(--r-lg); }
  .ladder-step:last-child { border-start-end-radius: var(--r-lg); border-end-end-radius: var(--r-lg); }
  .ladder-step.is-start { background: color-mix(in srgb, var(--acc-fill) 9%, var(--bg)); }
  .ladder-step + .ladder-step { border-inline-start: 1px solid var(--b1); }
  .ladder-step:not(:last-child)::after {
    content: "";
    position: absolute;
    z-index: 1;
    inset-inline-end: -7px;
    inset-block-start: 50%;
    width: 12px; height: 12px;
    background: inherit;
    border-block-start: 1px solid var(--b1);
    border-inline-end: 1px solid var(--b1);
    transform: translateY(-50%) rotate(calc(45deg * var(--dir)));
  }
  .ladder-step:not(:last-child):not(.is-start)::after { background: var(--bg); }
}

/* ---------- Calendar card (click to load) ---------- */
.cal-card { padding: var(--sp-5); }
@media (min-width: 720px) { .cal-card { padding: var(--sp-6); } }
.cal-body { display: grid; gap: var(--sp-5); }
.cal-intro { display: grid; gap: var(--sp-2); justify-items: start; }
.cal-intro .method-icon { margin-block-end: var(--sp-2); }
.cal-steps .step-list { grid-template-columns: 1fr; gap: var(--sp-4); }
.cal-actions { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3) var(--sp-5); }
.cal-actions .btn { white-space: normal; }
.cal-direct { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; font-size: .9375rem; font-weight: 600; color: var(--acc); }
.cal-direct .i { width: 16px; height: 16px; }
.cal-direct:hover span { text-decoration: underline; text-underline-offset: 3px; }
.no-js .cal-direct { display: none; }
.cal-status { font-size: .875rem; color: var(--t3); }
.cal-status:empty { display: none; }
.cal-body.is-loaded .cal-steps, .cal-body.is-loaded [data-cal-open] { display: none; }
.cal-frame {
  height: 700px;
  border-radius: var(--r-md);
  overflow: hidden;
  border: 1px solid var(--b1);
  background: var(--s1);
  opacity: .001;
  transition: opacity var(--d3) var(--ease);
}
.cal-frame.is-ready { opacity: 1; }
.cal-frame:focus { outline: none; }
.cal-frame iframe { display: block; width: 100%; height: 100%; border: 0; }

/* ---------- Direct contact: copy email ---------- */
.chip { flex-wrap: wrap; }
.chip-row { display: flex; gap: var(--sp-2); }
.chip-row .chip { flex: 1; min-width: 0; }
.copy-btn { width: 52px; height: 52px; flex: none; border-radius: var(--r-md); border-color: var(--b1); background: var(--bg); color: var(--acc); }
.copy-btn:hover { border-color: var(--acc-line); background: var(--bg); color: var(--acc); }
.copy-btn .i-done, .copy-btn.is-done .i:not(.i-done) { display: none; }
.copy-btn.is-done .i-done { display: block; }
.no-js .copy-btn { display: none; }

/* ---------- FAQ: height transition (progressive) ---------- */
@supports selector(::details-content) {
  @media (prefers-reduced-motion: no-preference) {
    .faq-item { interpolate-size: allow-keywords; }
    .faq-item::details-content {
      block-size: 0;
      overflow: clip;
      transition: block-size var(--d3) var(--ease), content-visibility var(--d3) allow-discrete;
    }
    .faq-item[open]::details-content { block-size: auto; }
  }
}

/* ---------- Scroll progress hairline ---------- */
.scroll-progress {
  display: none;
  position: absolute;
  inset-inline: 0;
  inset-block-end: -1px;
  height: 2px;
  background: var(--acc);
  transform: scaleX(0);
  transform-origin: left center;
  pointer-events: none;
}
[dir="rtl"] .scroll-progress { transform-origin: right center; }
@keyframes scroll-progress { to { transform: scaleX(1); } }
@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    .scroll-progress { display: block; animation: scroll-progress linear both; animation-timeline: scroll(root block); }
  }
}

/* ---------- CTA arrow nudge (direction-aware) ---------- */
.nudge { transition: translate var(--d2) var(--ease); }
a:hover > .nudge, button:hover > .nudge, .pub-card:hover .nudge { translate: calc(3px * var(--dir)) 0; }

/* ---------- Reveal: first-viewport elements never animate; charts draw in ---------- */
.reveal-on [data-reveal].no-anim { transition: none; }
.chart .grow-x, .chart .grow-y, .chart .pop, .chart .sq { transform-box: fill-box; }
.chart .grow-x { transform-origin: left center; }
[dir="rtl"] .chart .grow-x { transform-origin: right center; }
.chart .grow-y { transform-origin: center bottom; }
.chart .pop, .chart .sq { transform-origin: center; }
@media (prefers-reduced-motion: no-preference) {
  .reveal-on [data-reveal] .chart :is(.grow-x, .grow-y, .pop, .sq) {
    transition: transform 700ms var(--ease), opacity 400ms var(--ease);
  }
  .reveal-on [data-reveal] .chart :is(.pop, .sq) { transition-delay: calc(sibling-index() * 14ms); }
  .reveal-on [data-reveal]:not(.is-in) .chart .grow-x { transform: scaleX(0); }
  .reveal-on [data-reveal]:not(.is-in) .chart .grow-y { transform: scaleY(0); }
  .reveal-on [data-reveal]:not(.is-in) .chart :is(.pop, .sq) { transform: scale(.3); opacity: 0; }
}

@media print {
  .sat-controls, .scroll-progress, .ladder-cta, .copy-btn, .cal-actions, .dotm { display: none !important; }
  .hero-grid-bg { display: none; }
}

/* ---------- Small screens: keep SVG text legible (text scales with the viewBox) ---------- */
@media (max-width: 559px) {
  .satiety { padding: var(--sp-4); }
  .sat-map-wrap, .sat-chart-wrap { padding: var(--sp-2); }
  .sat-chart text, :lang(ar) .sat-chart text { font-size: 13px; }
  .sat-chart .sat-note text { font-size: 12.5px; }
  .sat-map .site circle { r: 11px; }
  .sat-map .site text { font-size: 12px; }
  .case-chart { padding: var(--sp-3); }
  .ch-squares text, .ch-track text, .ch-indexed text { font-size: 19px; }
  :lang(ar) .ch-squares text, :lang(ar) .ch-track text, :lang(ar) .ch-indexed text { font-size: 20px; }
  .ch-track .tl, .ch-indexed .tl { font-size: 17px; }
  .gauge text { font-size: 16px; }
}
/* ---------- The Library: home strip, Publications mini map, Decision tools link ---------- */
.lib-strip { border-block: 1px solid var(--b1); background: var(--s1); }
.lib-strip-line { padding-block: var(--sp-4); font-size: .9375rem; line-height: 1.7; color: var(--t2); }
.lib-strip-line strong { color: var(--t1); font-weight: 650; }
.lib-strip-lab { color: var(--t1); }
.lib-strip-cta { margin-inline-start: 4px; white-space: nowrap; min-height: 44px; vertical-align: middle; }
:lang(ar) .lib-strip-line { font-size: 1rem; line-height: 1.9; }

.lib-mini { display: grid; gap: var(--sp-5); }
.lib-shelves { display: grid; gap: var(--sp-3); grid-template-columns: repeat(auto-fill, minmax(min(100%, 200px), 1fr)); }
.lib-shelf { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2px var(--sp-3); min-height: 88px; padding: var(--sp-4) var(--sp-5); color: var(--t1); }
.lib-shelf .i { grid-row: 1 / 3; grid-column: 2; width: 18px; height: 18px; color: var(--acc); }
.lib-shelf-l { font-weight: 650; font-size: 1.0625rem; }
.lib-shelf-n { font-size: .875rem; color: var(--t3); font-variant-numeric: tabular-nums; }
.lib-latest { padding: var(--sp-5); }
.lib-latest ol { display: grid; gap: 2px; }
.lib-latest a { display: flex; flex-wrap: wrap; align-items: baseline; gap: 2px var(--sp-3); min-height: 44px; padding-block: 8px; color: var(--t1); }
.lib-latest li + li a { border-block-start: 1px solid var(--b1); }
.lib-latest a:hover .lib-latest-t { color: var(--acc); }
.lib-code { font-size: .75rem; font-weight: 600; color: var(--acc); font-variant-numeric: tabular-nums; white-space: nowrap; }
.lib-latest-t { flex: 1 1 18ch; min-width: 0; }
.lib-mini-cta { margin-block-start: var(--sp-1); }
.lab-more { margin-block-start: var(--sp-5); }
.lab-more .link-cta { min-height: 44px; }
@media (min-width: 900px) {
  .lib-mini { grid-template-columns: 3fr 2fr; align-items: start; }
  .lib-shelves { grid-template-columns: repeat(2, 1fr); }
  .lib-shelves li:last-child:nth-child(odd) { grid-column: 1 / -1; }
  .lib-mini-cta { grid-column: 1 / -1; }
}

/* ---------- The Branch Gate front door (verdict 2026-10-03): question, three verdicts, the calculator ---------- */
.hero--gate { padding-block: var(--sp-7) var(--sp-7); }
.hero--gate .hero-copy { max-width: 820px; }
.h1-q { display: block; }
.hero-verdicts {
  margin-block-start: var(--sp-3);
  font-size: clamp(1.25rem, 1.05rem + .9vw, 1.75rem);
  line-height: 1.5;
  font-weight: 700;
  color: var(--t2);
}
.hero-verdicts--sm { font-size: 1.0625rem; margin-block: 0 var(--sp-4); }
.vw { display: inline-block; padding: 0 .25em; border-radius: .3em; font-weight: 700; }
.vw--sign { color: var(--acc); background: var(--acc-soft); }
.vw--cond { color: var(--warn); background: var(--amber-soft); }
.vw--not { color: var(--t1); background: var(--s2); box-shadow: inset 0 0 0 1px var(--b1); }
.hero-gate { margin-block-start: var(--sp-6); scroll-margin-block-start: calc(var(--header-h) + 8px); }
.hero-gate .viz, .gate-calc .viz { margin-block-start: 0; box-shadow: var(--shadow); }
.gate-book { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2) var(--sp-4); margin-block-start: var(--sp-3); }
.gate-book-note { font-size: .875rem; color: var(--t2); }
.gate-more { margin-block-start: var(--sp-4); }
.gate-more .link-cta { min-height: 44px; }
@media (max-width: 479px) { .gate-book .btn { flex: 1 1 100%; white-space: normal; } }

/* who is behind the gate: two lines, role not result */
.who { padding-block: var(--sp-7); border-block-start: 1px solid var(--b1); }
.who-grid { display: grid; grid-template-columns: 72px minmax(0, 1fr); gap: var(--sp-4) var(--sp-5); align-items: start; }
.who-portrait picture { display: block; overflow: hidden; border-radius: 50%; border: 1px solid var(--b1); background: var(--s2); }
.who-portrait img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.who-title { display: grid; gap: 2px; font-size: 1.375rem; line-height: 1.3; margin-block-end: var(--sp-3); }
.who-eb { font-size: .8125rem; font-weight: 600; color: var(--acc); letter-spacing: .04em; text-transform: uppercase; }
:lang(ar) .who-eb { letter-spacing: 0; text-transform: none; font-size: .9375rem; }
.who-line { max-width: 70ch; font-size: 1.0625rem; line-height: 1.75; color: var(--t1); }
.who-line + .who-line { margin-block-start: var(--sp-3); color: var(--t2); }
:lang(ar) .who-line { line-height: 1.95; }
.who-proof { margin-block-start: var(--sp-5); }
.who-more { margin-block-start: var(--sp-4); }
.who-more .link-cta { min-height: 44px; }
@media (min-width: 720px) {
  .who-grid { grid-template-columns: 112px minmax(0, 1fr); }
  .who-proof { grid-template-columns: repeat(2, 1fr); }
}

/* Library on the home page: the Questions first, no counts, no codes */
.lib-hqs { padding: var(--sp-5); }
.lib-hq-list { display: grid; margin-block-start: var(--sp-2); }
.lib-hq { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); min-height: 52px; padding-block: 10px;
  color: var(--t1); font-weight: 600; font-size: 1.0625rem; }
.lib-hq .i { flex: none; width: 18px; height: 18px; color: var(--acc); }
.lib-hq-list li + li .lib-hq { border-block-start: 1px solid var(--b1); }
.lib-hq:hover span { color: var(--acc); }
.lib-side { display: grid; gap: var(--sp-4); align-content: start; }
.lib-shelf-links { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.lib-shelf-link { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border: 1px solid var(--b1);
  border-radius: 999px; background: var(--s1); color: var(--t1); font-size: .9375rem; font-weight: 600; }
.lib-shelf-link:hover { border-color: var(--acc-line); color: var(--acc); }

/* results: the two caveat lines on every case */
.case-caveat { margin-block-start: var(--sp-3); font-size: .8125rem; line-height: 1.5; color: var(--t2); }
.tool-gate .lab-gate-cta { margin-block-start: var(--sp-2); }

/* the /gate/ page */
.gate-hero { position: relative; padding-block: var(--sp-6) var(--sp-5); isolation: isolate; }
.gate-crumbs ol { display: flex; flex-wrap: wrap; gap: 4px var(--sp-2); font-size: .875rem; color: var(--t2); margin-block-end: var(--sp-5); }
.gate-crumbs li { display: inline-flex; align-items: center; gap: var(--sp-2); }
.gate-crumbs li + li::before { content: "\203A"; color: var(--t3); }
[dir="rtl"] .gate-crumbs li + li::before { content: "\2039"; }
.gate-crumbs a { display: inline-flex; align-items: center; min-height: 32px; color: var(--t2); }
.gate-crumbs a[aria-current="page"] { color: var(--t1); font-weight: 600; }
.gate-hero h1 { font-size: var(--fs-h1); line-height: var(--lh-h); letter-spacing: -0.03em; }
:lang(ar) .gate-hero h1 { font-size: clamp(2rem, 1.45rem + 2.2vw, 3.25rem); line-height: 1.34; letter-spacing: 0; }
.gate-lede { margin-block-start: var(--sp-4); font-size: clamp(1.25rem, 1.05rem + .9vw, 1.75rem); line-height: 1.45; font-weight: 700; color: var(--t1); }
.gate-calc { padding-block: 0 var(--sp-7); }
.gate-calc .container { scroll-margin-block-start: calc(var(--header-h) + 8px); }
.gate-prose { max-width: 780px; }
.gate-sec + .gate-sec { margin-block-start: var(--sp-7); }
.gate-sec h2 { font-size: clamp(1.375rem, 1.2rem + .7vw, 1.75rem); margin-block-end: var(--sp-4); }
.gate-sec p { line-height: 1.75; color: var(--t1); }
:lang(ar) .gate-sec p, :lang(ar) .gate-sec li, :lang(ar) .gate-sec dd { line-height: 1.95; }
.gate-sec p + p, .gate-sec p + ol, .gate-sec p + ul, .gate-sec ol + p, .gate-sec ul + p, .gate-sec dl + p { margin-block-start: var(--sp-3); }
.gate-ol { list-style: decimal; padding-inline-start: 1.4em; display: grid; gap: var(--sp-3); }
.gate-ul { list-style: disc; padding-inline-start: 1.4em; display: grid; gap: var(--sp-3); }
.gate-ol li, .gate-ul li { line-height: 1.75; }
.gate-dl { display: grid; gap: var(--sp-3); }
.gate-dl-row { display: grid; gap: 4px; padding: var(--sp-3) var(--sp-4); border: 1px solid var(--b1); border-radius: var(--r-md); background: var(--bg); }
.gate-dl-row dt { font-size: 1.0625rem; }
.gate-badge { display: inline-block; vertical-align: middle; margin-inline-start: var(--sp-2); padding: 2px 10px; border-radius: 999px;
  border: 1px solid var(--b2); color: var(--warn); background: var(--amber-soft); font-size: .8125rem; font-weight: 600; letter-spacing: 0; }
.gate-after { font-weight: 600; }
.gate-links { display: grid; gap: 2px; }
.gate-links a { display: inline-flex; align-items: center; min-height: 44px; color: var(--acc); }
.gate-sec .mini-title { margin-block: var(--sp-5) var(--sp-3); }
.gate-chips { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.gate-chips a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 14px; border: 1px solid var(--b1); border-radius: 999px;
  background: var(--s1); color: var(--t1); font-size: .9375rem; }
.gate-chips a:hover { border-color: var(--acc-line); color: var(--acc); }
.gate-faq h2 { font-size: clamp(1.375rem, 1.2rem + .7vw, 1.75rem); margin-block-end: var(--sp-4); }
.gate-faq .faq-a > p + p, .gate-faq .faq-a > p + ol, .gate-faq .faq-a > p + ul, .gate-faq .faq-a > p + dl { margin-block-start: var(--sp-3); }
.gate-faq .faq-a .gate-ol, .gate-faq .faq-a .gate-ul, .gate-faq .faq-a .gate-dl { color: var(--t2); }
.gate-faq .faq-a li, .gate-faq .faq-a dd { line-height: 1.7; }
:lang(ar) .gate-faq .faq-a li, :lang(ar) .gate-faq .faq-a dd { line-height: 1.85; }
.gate-cta { max-width: 780px; padding: var(--sp-6); display: grid; gap: var(--sp-3); }
.gate-cta h2 { font-size: clamp(1.375rem, 1.2rem + .7vw, 1.75rem); }
@media print { .gate-book, .gate-more { display: none !important; } }