/* =====================================================================
   AI Budget Clash — "The Cleared Column"
   Full-dark, challenge-console theme. RIGHT command rail.
   Surface system: paired background + text via classes only.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@700;800&family=Figtree:wght@400;600&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
  --ink:        #080B10;  /* void ink       */
  --column:     #141A24;  /* column slate   */
  --frost:      #E8EEF6;  /* frost          */
  --chartreuse: #C5F23A;  /* budget chartreuse */
  --chartreuse-hi: #D4F86A;
  --mute:       #7E8898;  /* mute steel     */

  --bg-ink: var(--ink);
  --text-on-ink: var(--frost);
  --bg-column: var(--column);
  --text-on-column: var(--frost);
  --bg-frost: var(--frost);
  --text-on-frost: var(--ink);
  --bg-chartreuse: var(--chartreuse);
  --text-on-chartreuse: #080B10;

  --link-on-dark: var(--chartreuse);
  --link-on-column: var(--chartreuse-hi);

  --rail-w: 72px;
  --topbar-h: 60px;

  --font-head: 'Syne', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Figtree', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'Consolas', monospace;

  --maxw: 1140px;
  --pad-section: 116px;
  --radius: 2px;
  --hairline: rgba(232,238,246,0.12);
  --card-bg: rgba(232,238,246,0.05);
  --card-border: rgba(197,242,58,0.26);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 17px;
  line-height: 1.66;
  background: var(--ink);
  color: var(--frost);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ---------- Surface system (paired bg + text) ---------- */
.surface-ink        { background: var(--bg-ink);        color: var(--text-on-ink); }
.surface-column     { background: var(--bg-column);     color: var(--text-on-column); }
.surface-frost      { background: var(--bg-frost);      color: var(--text-on-frost); }
.surface-chartreuse { background: var(--bg-chartreuse); color: var(--text-on-chartreuse); }

.surface-ink *:not(.btn):not(.btn *),
.surface-column *:not(.btn):not(.btn *),
.surface-chartreuse *:not(.btn):not(.btn *) { color: inherit; }
.surface-frost :where(h1,h2,h3,h4,p,label,span,li,a,legend,small,strong,em) { color: inherit; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 800; line-height: 1.06; margin: 0 0 .5em; letter-spacing: -0.015em; }
h1 { font-size: clamp(44px, 6vw, 82px); }
h2 { font-size: clamp(29px, 3.6vw, 45px); font-weight: 700; }
h3 { font-size: clamp(20px, 2vw, 27px); font-weight: 700; }
h4 { font-size: 18px; font-weight: 700; }
p { margin: 0 0 1.1em; }
strong { font-weight: 600; }

a { color: var(--link-on-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
.surface-column a { color: var(--link-on-column); }
.surface-frost a { color: #4d6b00; }

.eyebrow {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--chartreuse);
  margin: 0 0 14px;
  display: block;
}
.mono { font-family: var(--font-mono); font-weight: 500; }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute; left: 8px; top: -60px;
  background: var(--chartreuse); color: var(--ink);
  padding: 10px 16px; border-radius: 2px; z-index: 2000;
  font-weight: 600; transition: top .2s ease;
}
.skip-link:focus { top: 8px; text-decoration: none; }

:focus-visible { outline: 3px solid var(--chartreuse); outline-offset: 2px; border-radius: 2px; }

/* =====================================================================
   HEADER — RIGHT command rail + top command bar
   ===================================================================== */
.rail {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: var(--rail-w);
  display: flex; flex-direction: column; align-items: center;
  padding: 14px 0;
  border-left: 1px solid var(--hairline);
  background: var(--ink);
  z-index: 1100;
}
.rail-logo {
  width: 46px; height: 46px; border-radius: 2px;
  display: grid; place-items: center;
  background: var(--ink); border: 1px solid var(--card-border);
  margin-bottom: 26px;
}
.rail-logo:hover { text-decoration: none; box-shadow: 0 0 0 3px rgba(197,242,58,0.22); }
.rail-nav { flex: 1; width: 100%; }
.rail-nav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; align-items: center; }
.rail-link {
  position: relative;
  width: 46px; height: 46px; border-radius: 2px;
  display: grid; place-items: center;
  color: var(--mute);
}
.rail-link svg { width: 22px; height: 22px; }
.rail-link:hover { color: var(--frost); background: rgba(232,238,246,0.06); text-decoration: none; }
.rail-link.nav-active { color: var(--chartreuse); background: rgba(197,242,58,0.12); }
.rail-link.nav-active::before {
  content: ""; position: absolute; right: -14px; top: 11px; bottom: 11px; width: 3px;
  background: var(--chartreuse); border-radius: 2px;
}
.rail-link .tip {
  position: absolute; right: 58px; top: 50%; transform: translateY(-50%);
  background: var(--column); color: var(--frost);
  border: 1px solid var(--card-border);
  padding: 5px 10px; border-radius: 2px; font-size: 13px; white-space: nowrap;
  opacity: 0; pointer-events: none; transition: opacity .16s ease; z-index: 1200;
}
.rail-link:hover .tip, .rail-link:focus-visible .tip { opacity: 1; }
.rail-foot { font-family: var(--font-mono); font-size: 10px; color: var(--mute); writing-mode: vertical-rl; letter-spacing: .2em; margin-top: 10px; }

.topbar {
  position: fixed; top: 0; left: 0; right: var(--rail-w);
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 18px;
  padding: 0 26px;
  background: rgba(8,11,16,0.86);
  border-bottom: 1px solid var(--hairline);
  z-index: 1050;
  backdrop-filter: blur(6px);
}
.topbar.scrolled { background: rgba(8,11,16,0.96); }
.topbar-logo { display: inline-flex; align-items: center; gap: 10px; }
.topbar-logo .tl-mark { width: 30px; height: 30px; display: grid; place-items: center; border: 1px solid var(--card-border); border-radius: 2px; }
.topbar-logo .tl-name { font-family: var(--font-head); font-weight: 800; font-size: 15px; letter-spacing: -0.01em; color: var(--frost); }
.topbar-logo:hover { text-decoration: none; }
.breadcrumb { font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--mute); margin: 0 auto; }
.breadcrumb b { color: var(--frost); font-weight: 500; }
.topbar-cta { margin-left: auto; }
.wordmark { display: none; font-family: var(--font-head); font-weight: 800; letter-spacing: -0.01em; }

.menu-toggle {
  display: none;
  width: 44px; height: 44px; border: 1px solid var(--hairline); border-radius: 2px;
  background: transparent; color: var(--frost); cursor: pointer;
  align-items: center; justify-content: center;
}
.menu-toggle svg { width: 22px; height: 22px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-body); font-weight: 600; font-size: 16px;
  padding: 13px 24px; border-radius: 2px; cursor: pointer;
  border: 1px solid transparent; transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
a.btn.btn-primary,
.btn.btn-primary {
  background: var(--chartreuse);
  color: #080B10;
}
a.btn.btn-primary:hover,
a.btn.btn-primary:focus-visible,
.btn.btn-primary:hover,
.btn.btn-primary:focus-visible {
  color: #080B10;
  filter: brightness(1.06);
  box-shadow: 0 8px 26px rgba(197,242,58,0.26);
  transform: translateY(-1px);
}
.btn-outline { background: transparent; color: var(--frost); border-color: rgba(232,238,246,0.4); }
.btn-outline:hover { border-color: var(--frost); box-shadow: 0 6px 20px rgba(0,0,0,0.4); transform: translateY(-1px); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.surface-frost .btn-outline { color: var(--ink); border-color: rgba(8,11,16,0.4); }

/* =====================================================================
   LAYOUT SHELL
   ===================================================================== */
.shell { margin-right: var(--rail-w); padding-top: var(--topbar-h); min-height: 100vh; }
main { display: block; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 34px; }
.section { padding: var(--pad-section) 0; }
.section-sm { padding: 70px 0; }
.lede { font-size: 20px; color: var(--frost); max-width: 60ch; }
.muted { color: var(--mute); }

.rule { height: 1px; background: var(--hairline); border: 0; margin: 0; }

/* Vertical column ticks decorative element */
.ticks { display: flex; gap: 6px; align-items: flex-end; height: 28px; margin-bottom: 18px; }
.ticks span { width: 3px; background: var(--chartreuse); opacity: .5; }
.ticks span:nth-child(1){ height: 40%; } .ticks span:nth-child(2){ height: 70%; }
.ticks span:nth-child(3){ height: 55%; } .ticks span:nth-child(4){ height: 100%; opacity:.9; }
.ticks span:nth-child(5){ height: 65%; } .ticks span:nth-child(6){ height: 45%; }

/* =====================================================================
   HERO — "THE COLUMN MATCH"
   ===================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; flex-direction: column;
  padding: calc(var(--topbar-h) + 28px) 0 40px;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(180deg, rgba(8,11,16,0.70) 0%, rgba(8,11,16,0.80) 55%, rgba(8,11,16,0.95) 100%), url('/images/aibudgetclash-01-hero-column.jpg');
  background-size: cover; background-position: center;
  z-index: 0;
}
.hero::after {
  content: ""; position: absolute; inset: 0;
  box-shadow: inset 0 0 190px 24px rgba(197,242,58,0.09);
  pointer-events: none; z-index: 1;
}
.hero > * { position: relative; z-index: 2; }
.hero-eyebrow-row {
  display: flex; justify-content: space-between; gap: 16px;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .16em; text-transform: uppercase;
  color: var(--chartreuse);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 16px;
}
.hero-body { flex: 1; display: flex; align-items: flex-end; }
.hero h1 { max-width: 17ch; margin-bottom: 22px; }
.hero h1 .hl { color: var(--chartreuse); }
.hero-sub { max-width: 560px; font-size: 19px; color: rgba(232,238,246,0.88); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.hero-trust {
  margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--hairline);
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em; color: var(--mute);
}
.hero-colrail { display: flex; gap: 22px; margin-top: 16px; font-family: var(--font-mono); font-size: 12px; color: var(--mute); flex-wrap: wrap; }
.hero-colrail span b { color: var(--chartreuse); font-weight: 500; }

/* =====================================================================
   COMPONENTS
   ===================================================================== */
.grid { display: grid; gap: 26px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 30px;
  position: relative;
}
.card::before, .card::after {
  content: ""; position: absolute; width: 12px; height: 12px; border-color: var(--chartreuse); border-style: solid;
}
.card::before { top: 10px; left: 10px; border-width: 1px 0 0 1px; }
.card::after { bottom: 10px; right: 10px; border-width: 0 1px 1px 0; }
.card h3 { margin-top: 0; }
.card .col-num { font-family: var(--font-mono); color: var(--chartreuse); font-size: 13px; letter-spacing: .12em; }

.metric-trio { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.metric { border-left: 2px solid var(--chartreuse); padding-left: 20px; }
.metric .num { font-family: var(--font-mono); font-size: clamp(34px, 5vw, 52px); color: var(--chartreuse); display: block; line-height: 1; }
.metric .lbl { color: var(--mute); font-size: 15px; margin-top: 8px; display: block; }

.section-head { max-width: 62ch; margin-bottom: 48px; }

.col-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.col-item { display: flex; gap: 18px; padding: 24px; border: 1px solid var(--hairline); border-radius: var(--radius); background: rgba(20,26,36,0.55); }
.col-item .cn { font-family: var(--font-mono); color: var(--chartreuse); font-size: 15px; flex-shrink: 0; padding-top: 4px; }

.prog-preview { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0; border: 1px solid var(--hairline); border-radius: var(--radius); overflow: hidden; }
.prog-row { display: flex; align-items: baseline; gap: 18px; padding: 22px 26px; border-bottom: 1px solid var(--hairline); border-right: 1px solid var(--hairline); }
.prog-row .pn { font-family: var(--font-mono); color: var(--chartreuse); font-size: 14px; }
.prog-row h3 { margin: 0; font-size: 19px; }

.figure { border: 1px solid var(--card-border); border-radius: var(--radius); overflow: hidden; position: relative; background: var(--column); }
.figure img { display: block; width: 100%; height: 100%; object-fit: cover; }
.figure figcaption { padding: 12px 16px; font-size: 13px; color: var(--mute); font-family: var(--font-mono); letter-spacing: .04em; border-top: 1px solid var(--hairline); }
.media-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.media-grid .figure img { aspect-ratio: 4/3; }

.split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 48px; align-items: center; }
.split .figure img { aspect-ratio: 4/3; }

.teaser { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.teaser .card p:last-child { margin-bottom: 0; }

.faq-mini { display: grid; gap: 0; border-top: 1px solid var(--hairline); }
.faq-item { border-bottom: 1px solid var(--hairline); padding: 26px 0; }
.faq-item h3 { margin: 0 0 10px; font-size: 20px; }
.faq-item p { margin: 0; color: rgba(232,238,246,0.82); }
.faq-item p + p { margin-top: 10px; }

.cta-band { text-align: center; }
.cta-band h2 { margin-bottom: 18px; }
.cta-band .btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 26px; }

.pill-list { list-style: none; padding: 0; margin: 18px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.pill-list li { font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em; color: var(--mute); border: 1px solid var(--hairline); border-radius: 2px; padding: 6px 12px; }

.disclaimer {
  border: 1px dashed rgba(197,242,58,0.42);
  border-radius: var(--radius);
  padding: 22px 26px;
  color: rgba(232,238,246,0.8);
  font-size: 15px;
  background: rgba(20,26,36,0.4);
}
.disclaimer strong { color: var(--chartreuse); }

/* program detail cards */
.prog-detail { display: grid; gap: 26px; }
.prog-card { border: 1px solid var(--card-border); border-radius: var(--radius); overflow: hidden; background: rgba(20,26,36,0.5); }
.prog-card .pc-media img { width: 100%; aspect-ratio: 16/9; object-fit: cover; display: block; }
.prog-card .pc-body { padding: 30px; }
.prog-card .pc-head { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 6px; }
.prog-card .pc-head .cn { font-family: var(--font-mono); color: var(--chartreuse); font-size: 14px; }
.meta-row { display: flex; flex-wrap: wrap; gap: 18px; margin: 16px 0 6px; font-size: 14px; color: var(--mute); font-family: var(--font-mono); }
.meta-row b { color: var(--frost); font-weight: 500; }
@media (min-width: 860px){ .prog-card { display: grid; grid-template-columns: 320px 1fr; } .prog-card .pc-media img { height: 100%; aspect-ratio: auto; } }

/* services */
.svc-list { display: grid; grid-template-columns: repeat(2,1fr); gap: 24px; }
.svc-card { border: 1px solid var(--card-border); border-radius: var(--radius); padding: 28px; background: var(--card-bg); }
.svc-card .price { font-family: var(--font-mono); color: var(--chartreuse); font-size: 15px; margin-top: 10px; }

/* =====================================================================
   FORMS  (dark panel)
   ===================================================================== */
.form-panel { border-radius: var(--radius); padding: 40px; }
.form-panel.form-dark {
  background: #080B10;
  color: #E8EEF6;
  border: 1px solid rgba(232,238,246,0.14);
  box-shadow: inset 0 0 0 1px rgba(197,242,58,0.08);
}
.form-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 20px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field.full { grid-column: 1 / -1; }
label { font-weight: 600; font-size: 15px; }
.form-dark label { color: #E8EEF6; }
.form-dark input,
.form-dark select,
.form-dark textarea {
  font-family: var(--font-body); font-size: 16px;
  padding: 12px 14px; border-radius: 2px;
  border: 1px solid rgba(232,238,246,0.22);
  background: #141A24;
  color: #E8EEF6;
}
.form-dark input::placeholder,
.form-dark textarea::placeholder { color: #7E8898; }
.form-dark select option { background: #141A24; color: #E8EEF6; }
.form-dark input:focus,
.form-dark select:focus,
.form-dark textarea:focus {
  outline: 3px solid rgba(197,242,58,0.55);
  outline-offset: 1px;
  border-color: var(--chartreuse);
}
input, select, textarea {
  font-family: var(--font-body); font-size: 16px;
  padding: 12px 14px; border-radius: 2px;
  border: 1px solid #aeb6c2; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 3px solid #8bbf12; outline-offset: 1px; border-color: #8bbf12; }
textarea { resize: vertical; min-height: 140px; }
.consent { display: flex; gap: 12px; align-items: flex-start; grid-column: 1/-1; }
.consent input { width: 20px; height: 20px; margin-top: 3px; flex-shrink: 0; }
.consent label { font-weight: 400; font-size: 14px; }
.form-dark .consent label { color: rgba(232,238,246,0.86); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-note { font-size: 13px; color: #4d5765; }
.form-dark .form-note { color: #7E8898; }
.form-dark .form-note a { color: var(--chartreuse); }

.contact-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.info-block { margin-bottom: 24px; }
.info-block h3 { font-size: 17px; margin-bottom: 6px; }
.info-block p { margin: 0; color: rgba(232,238,246,0.82); }

/* =====================================================================
   FOOTER
   ===================================================================== */
.site-footer { border-top: 1px solid var(--hairline); }
.footer-grid { max-width: var(--maxw); margin: 0 auto; padding: 72px 34px 40px; display: grid; grid-template-columns: 1.6fr 1fr 1.3fr; gap: 48px; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand .mk { width: 40px; height: 40px; border: 1px solid var(--card-border); border-radius: 2px; display: grid; place-items: center; }
.footer-brand .nm { font-family: var(--font-head); font-weight: 800; font-size: 18px; }
.footer-slogan { color: rgba(232,238,246,0.82); max-width: 34ch; }
.footer-disclaimer { font-size: 13px; color: var(--mute); max-width: 48ch; }
.footer-col h2 { font-family: var(--font-head); font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--mute); font-weight: 700; margin-bottom: 16px; }
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-col a { color: var(--frost); }
.footer-col a:hover { color: var(--chartreuse); }
.footer-contact p { margin: 0 0 8px; font-size: 15px; color: rgba(232,238,246,0.86); }
.footer-bottom { border-top: 1px solid var(--hairline); }
.footer-bottom .fb-inner { max-width: var(--maxw); margin: 0 auto; padding: 22px 34px; display: flex; flex-wrap: wrap; gap: 8px 20px; align-items: center; font-size: 13px; color: var(--mute); font-family: var(--font-mono); }
.footer-bottom .fb-inner .legal-links { margin-left: auto; display: flex; gap: 16px; flex-wrap: wrap; }
.footer-bottom a { color: var(--mute); }
.footer-bottom a:hover { color: var(--chartreuse); }

/* =====================================================================
   COOKIE BANNER
   ===================================================================== */
.cookie-banner {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  width: min(880px, calc(100% - 40px));
  background: var(--column); color: var(--frost);
  border: 1px solid var(--card-border); border-radius: var(--radius);
  padding: 22px 26px; z-index: 1500;
  box-shadow: 0 20px 60px rgba(0,0,0,0.55);
}
.cookie-banner[hidden] { display: none; }
.cookie-banner p { margin: 0 0 16px; font-size: 14px; color: rgba(232,238,246,0.86); }
.cookie-banner .ck-btns { display: flex; gap: 12px; flex-wrap: wrap; }
.cookie-panel { margin-top: 16px; border-top: 1px solid var(--hairline); padding-top: 16px; display: grid; gap: 10px; }
.cookie-panel[hidden] { display: none; }
.cookie-panel label { display: flex; align-items: center; gap: 10px; font-weight: 400; font-size: 14px; }

/* =====================================================================
   PAGE HEADER (interior pages)
   ===================================================================== */
.page-hero { padding: 72px 0 48px; border-bottom: 1px solid var(--hairline); }
.page-hero h1 { font-size: clamp(38px, 5vw, 64px); }
.page-hero .lede { margin-top: 12px; }

.prose h2 { margin-top: 1.6em; }
.prose h3 { margin-top: 1.4em; }
.prose ul, .prose ol { padding-left: 22px; }
.prose li { margin-bottom: 8px; }
.prose { max-width: 74ch; }
.prose-wide { max-width: 90ch; }

/* =====================================================================
   REVEAL ANIMATIONS (behind .js only)
   ===================================================================== */
.js .reveal { opacity: 0; transform: translateY(16px); transition: opacity .5s ease, transform .5s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1 !important; transform: none !important; transition: none; }
}

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
.rail-link .rl-label { display: none; }

@media (max-width: 960px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .split, .contact-cols { grid-template-columns: 1fr; gap: 32px; }
  .prog-preview, .col-list, .teaser, .svc-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --pad-section: 74px; }
  body { font-size: 16px; }

  .rail {
    transform: translateX(100%);
    width: 280px;
    align-items: stretch;
    padding: 20px;
    transition: transform .28s ease;
    background: var(--column);
    border-left: 1px solid var(--hairline);
  }
  .rail.open { transform: translateX(0); }
  .rail-logo { margin: 0 0 24px; }
  .rail-nav ul { gap: 4px; align-items: stretch; }
  .rail-link { width: 100%; height: auto; justify-content: flex-start; gap: 14px; padding: 14px 12px; border-radius: 2px; color: var(--frost); }
  .rail-link .rl-label { display: inline; font-family: var(--font-body); font-size: 17px; }
  .rail-link .tip { display: none; }
  .rail-link.nav-active::before { display: none; }
  .rail-foot { writing-mode: horizontal-tb; margin-top: 20px; }

  .topbar { right: 0; padding: 0 16px; }
  .menu-toggle { display: inline-flex; margin-left: auto; order: 3; }
  .breadcrumb { display: none; }
  .topbar-cta { display: none; }

  .shell { margin-right: 0; }

  .rail-overlay {
    position: fixed; inset: 0; background: rgba(8,11,16,0.6);
    z-index: 1090; opacity: 0; visibility: hidden; transition: opacity .28s ease;
  }
  body.menu-open .rail-overlay { opacity: 1; visibility: visible; }
  body.menu-open { overflow: hidden; }

  .grid-2, .grid-3, .grid-4, .metric-trio, .media-grid, .footer-grid { grid-template-columns: 1fr; }
  .wrap { padding: 0 20px; }
  .footer-grid { padding: 56px 20px 32px; }
  .footer-bottom .fb-inner { padding: 20px; }
  .footer-bottom .fb-inner .legal-links { margin-left: 0; }
  .form-grid { grid-template-columns: 1fr; }
  .form-panel { padding: 26px; }
  .hero { min-height: 84vh; }
}