/* Negotiate Bill — landing page styles.
   Layout and rhythm modeled on Granted Health; tokens from the redesign research plan
   (Whop vermilion/chartreuse, Thatch-style green), adjusted for WCAG AA contrast. */

:root {
  /* Color — primary (Whop vermilion adaptation) */
  --color-primary-100: #FFE5DE;
  --color-primary-300: #FC8C6F;
  --color-primary-500: #FA4616;   /* brand accent: large text, highlights */
  --color-primary-600: #D2390E;   /* CTA fill: 4.85:1 with white text */
  --color-primary-700: #B82F0A;   /* CTA hover, small accent text */
  --color-primary-900: #661600;

  /* Color — accents */
  --color-accent-indigo: #354B98;
  --color-accent-chartreuse: #C1FA81;
  --color-accent-chartreuse-soft: #EAFCD3;
  --color-accent-green: #2E5A44;
  --color-accent-green-900: #1C3326;

  /* Color — surfaces (warmed toward Granted's cream) */
  --color-surface-base: #FCFBF8;
  --color-surface-muted: #F3F1EC;
  --color-surface-card: #FFFFFF;
  --color-surface-glass: rgba(255, 255, 255, 0.65);
  --color-border: #E6E3DC;

  /* Color — text */
  --color-text-display: #151515;
  --color-text-body: #4A4A4A;
  --color-text-muted: #6B6A65;    /* AA on cream; #B6B5B0 reserved for decoration */
  --color-text-dust: #B6B5B0;
  --color-text-inverse: #FFFFFF;

  /* Typography */
  --font-family-display: 'Space Grotesk', system-ui, sans-serif;
  --font-family-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.8rem;
  --font-size-sm: 1rem;
  --font-size-md: 1.25rem;
  --font-size-lg: 1.563rem;
  --font-size-xl: clamp(2.25rem, 1.6rem + 2.6vw, 3.6rem);    /* H2 */
  --font-size-2xl: clamp(2.6rem, 1.7rem + 3.8vw, 4.5rem);    /* H1 */
  --font-size-3xl: clamp(3.2rem, 2.4rem + 3vw, 5rem);        /* KPI / price */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 600;

  /* Spacing (8-pt grid) */
  --space-2: 0.125rem;
  --space-4: 0.25rem;
  --space-8: 0.5rem;
  --space-12: 0.75rem;
  --space-16: 1rem;
  --space-24: 1.5rem;
  --space-32: 2rem;
  --space-48: 3rem;
  --space-64: 4rem;
  --space-96: 6rem;
  --space-128: 8rem;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 28px;
  --radius-pill: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(21, 21, 21, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(21, 21, 21, 0.1), 0 2px 4px -1px rgba(21, 21, 21, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(21, 21, 21, 0.1), 0 4px 6px -2px rgba(21, 21, 21, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(21, 21, 21, 0.1), 0 10px 10px -5px rgba(21, 21, 21, 0.04);
  --blur-frosted: blur(16px);

  --container: 1240px;
  --gutter: clamp(1.25rem, 3vw, 2.5rem);
  --inset: clamp(0.5rem, 1vw, 0.75rem);   /* full-bleed panel margin */
}

/* Base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--color-surface-base);
  color: var(--color-text-body);
  font: var(--font-weight-regular) var(--font-size-sm)/1.5 var(--font-family-body);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { margin: 0; color: var(--color-text-display); font-family: var(--font-family-display); font-weight: var(--font-weight-medium); }
p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
em { font-style: normal; }
:focus-visible { outline: 3px solid var(--color-accent-indigo); outline-offset: 3px; border-radius: 6px; }
section[id] { scroll-margin-top: 80px; }

[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: 1rem; top: -100px; z-index: 100; padding: .6rem 1rem; border-radius: var(--radius-md); background: var(--color-text-display); color: #fff; text-decoration: none; }
.skip-link:focus { top: 1rem; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.narrow { max-width: 760px; }
.center { text-align: center; }

.section { padding-block: clamp(var(--space-64), 9vw, var(--space-128)); }
.section-tight { padding-top: 0; }

.h2 {
  font-size: var(--font-size-xl);
  line-height: 0.98;
  letter-spacing: -0.035em;
  text-wrap: balance;
}
.h2 em, h1 em { color: var(--color-primary-500); }
.lede { max-width: 38ch; margin: var(--space-24) auto 0; font-size: 1.125rem; color: var(--color-text-muted); }
.lede-left, .h2-left { margin-left: 0; max-width: 18ch; }
.lede-left { max-width: 40ch; }
.lede strong { color: var(--color-text-display); font-weight: var(--font-weight-bold); }

.chip { display: inline-block; padding: var(--space-4) var(--space-12); margin-bottom: var(--space-16); border-radius: var(--radius-md); background: var(--color-surface-muted); color: var(--color-text-display); font-size: .875rem; font-weight: var(--font-weight-medium); }
.chip-grey { background: var(--color-surface-muted); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-8);
  min-height: 48px; padding: 0 var(--space-32);
  border: 0; border-radius: var(--radius-pill);
  background: var(--color-primary-600); color: var(--color-text-inverse);
  font: var(--font-weight-bold) .9375rem/1 var(--font-family-body);
  text-decoration: none; cursor: pointer;
  transition: background-color .15s, transform .15s, box-shadow .15s;
}
.btn:hover { background: var(--color-primary-700); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn:active { transform: none; }
.btn-sm { min-height: 44px; padding: 0 var(--space-24); font-size: .875rem; }
.btn-lg { min-height: 56px; padding: 0 var(--space-48); font-size: 1rem; }
.btn-block { width: 100%; }
.btn-ink { background: var(--color-text-display); }
.btn-ink:hover { background: #333; }
.btn-ghost { background: var(--color-surface-card); color: var(--color-text-display); box-shadow: inset 0 0 0 1px var(--color-border); }
.btn-ghost:hover { background: var(--color-surface-muted); }

/* Header (frosted) */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(252, 251, 248, 0.72);
  -webkit-backdrop-filter: var(--blur-frosted) saturate(1.4);
  backdrop-filter: var(--blur-frosted) saturate(1.4);
  border-bottom: 1px solid rgba(230, 227, 220, 0.6);
}
.header-inner { display: flex; align-items: center; gap: var(--space-32); min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: var(--space-12); text-decoration: none; color: var(--color-text-display); font: var(--font-weight-bold) 1.125rem var(--font-family-display); letter-spacing: -0.02em; }
.brand img { width: 40px; height: auto; }
.site-header nav { margin-right: auto; }
.nav-links { display: flex; gap: var(--space-4); }
.nav-links a { display: block; padding: 10px 14px; border-radius: var(--radius-md); color: var(--color-text-display); font-size: .9375rem; font-weight: var(--font-weight-medium); text-decoration: none; transition: background-color .15s; }
.nav-links a:hover { background: rgba(61, 59, 56, .07); }

/* File chip (shared mock component) */
.file-chip { display: inline-flex; align-items: center; gap: var(--space-8); padding: var(--space-8) var(--space-12); border-radius: var(--radius-lg); background: var(--color-surface-card); box-shadow: var(--shadow-md); color: var(--color-text-display); font-weight: var(--font-weight-medium); font-size: .9375rem; }
.file-chip svg { width: 28px; height: 28px; padding: 5px; border-radius: var(--radius-md); background: var(--color-surface-muted); }
.file-chip .chev { width: 18px; height: 18px; padding: 0; background: none; color: var(--color-text-muted); }

/* 1. Hero */
.hero { padding: var(--inset) var(--inset) 0; }
.hero-panel {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1.1fr 1fr; align-items: end; gap: var(--space-48);
  min-height: min(720px, calc(100svh - 90px));
  padding: clamp(var(--space-32), 5vw, var(--space-64));
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  color: #fff;
  background:
    radial-gradient(60% 70% at 78% 18%, rgba(255, 196, 120, .95) 0%, rgba(250, 120, 60, .55) 35%, rgba(250, 70, 22, 0) 70%),
    radial-gradient(50% 60% at 20% 10%, rgba(193, 250, 129, .45) 0%, rgba(193, 250, 129, 0) 70%),
    radial-gradient(80% 60% at 10% 100%, #10241A 0%, rgba(16, 36, 26, 0) 70%),
    linear-gradient(160deg, #6E8F58 0%, #2E5A44 45%, #1C3326 100%);
}
.hero-panel::after { /* soft grain */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .18; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero-copy { position: relative; z-index: 1; max-width: 600px; }
.hero h1 { color: #fff; font-size: var(--font-size-2xl); line-height: .94; letter-spacing: -0.04em; text-wrap: balance; }
.hero h1 em { color: var(--color-accent-chartreuse); }
.hero-sub { max-width: 30rem; margin: var(--space-24) 0 var(--space-32); font-size: 1.125rem; line-height: 1.45; color: rgba(255,255,255,.92); }
.hero-sub span { color: var(--color-accent-chartreuse); }

.hero-mock { position: relative; z-index: 1; justify-self: end; width: min(100%, 440px); }
.glass {
  display: grid; gap: var(--space-16); justify-items: end;
  padding: var(--space-24); border-radius: var(--radius-xl);
  background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.28);
  -webkit-backdrop-filter: var(--blur-frosted); backdrop-filter: var(--blur-frosted);
}
.review-card { width: 100%; padding: var(--space-24); border-radius: var(--radius-lg); background: var(--color-surface-card); color: var(--color-text-display); box-shadow: var(--shadow-xl); }
.review-title { margin-bottom: var(--space-16); font-weight: var(--font-weight-bold); }
.review-card li { display: flex; justify-content: space-between; align-items: center; padding: var(--space-8) 0; color: var(--color-text-body); font-size: .9375rem; }
.review-card li svg { width: 18px; height: 18px; color: #6FD13A; stroke: #fff; }
.review-card li.pending { color: var(--color-text-muted); }
.spinner { width: 16px; height: 16px; border: 2px solid var(--color-border); border-top-color: var(--color-primary-500); border-radius: 50%; animation: spin .9s linear infinite; }
.dots::after { content: "…"; }
@keyframes spin { to { transform: rotate(360deg); } }

.trust-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: var(--space-24) clamp(var(--space-16), 4vw, var(--space-48));
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  background: var(--color-accent-chartreuse-soft);
}
.trust-strip li { display: grid; gap: var(--space-2); justify-items: center; text-align: center; padding: var(--space-8); }
.trust-strip li + li { border-left: 1px solid rgba(46, 90, 68, .18); }
.trust-strip strong { color: var(--color-text-display); font: var(--font-weight-medium) 1.25rem/1.2 var(--font-family-display); letter-spacing: -0.02em; }
.trust-strip span { color: var(--color-text-muted); font-size: .875rem; }

/* 2. How it works */
.split { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(var(--space-32), 6vw, var(--space-96)); align-items: stretch; }
.split .h2 { max-width: 12ch; margin-bottom: var(--space-32); }
.steps { display: grid; gap: var(--space-8); }
.steps details, .faq details { border-radius: var(--radius-lg); background: var(--color-surface-muted); }
.steps details[open] { background: var(--color-accent-chartreuse-soft); box-shadow: inset 4px 0 0 var(--color-accent-chartreuse); }
.steps summary, .faq summary {
  display: flex; align-items: center; gap: var(--space-12);
  padding: var(--space-16) var(--space-16) var(--space-16) var(--space-24);
  color: var(--color-text-display); font-weight: var(--font-weight-medium); font-size: 1.0625rem;
  cursor: pointer; list-style: none; border-radius: var(--radius-lg);
}
.steps summary::-webkit-details-marker, .faq summary::-webkit-details-marker { display: none; }
.num { display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: rgba(21,21,21,.08); font-size: .8125rem; font-weight: var(--font-weight-bold); }
.plus { display: grid; place-items: center; width: 32px; height: 32px; margin-left: auto; flex: none; border-radius: var(--radius-md); background: var(--color-surface-card); color: var(--color-text-display); }
.plus svg { width: 18px; height: 18px; transition: transform .2s; }
details[open] > summary .plus svg { transform: rotate(45deg); }
.steps details p { padding: 0 var(--space-24) var(--space-24) calc(var(--space-24) + 38px); max-width: 44ch; }

.visual { position: relative; display: grid; place-items: center; min-height: 440px; padding: var(--space-32); border-radius: var(--radius-xl); overflow: hidden; }
.visual-sky { background: radial-gradient(90% 70% at 80% 0%, #FFFFFF 0%, rgba(255,255,255,0) 60%), linear-gradient(180deg, #CFE3F2 0%, #B7D3E8 45%, #E9E3CF 100%); }
.bill-card { width: min(100%, 380px); display: grid; gap: var(--space-16); justify-items: start; }
.lines { width: 100%; padding: var(--space-8) var(--space-24); border-radius: var(--radius-lg); background: var(--color-surface-card); box-shadow: var(--shadow-xl); }
.lines li { display: flex; justify-content: space-between; align-items: center; gap: var(--space-12); padding: var(--space-12) 0; font-size: .9375rem; color: var(--color-text-display); }
.lines li + li { border-top: 1px solid var(--color-surface-muted); }
.tag { padding: 3px 10px; border-radius: var(--radius-pill); font-size: .75rem; font-weight: var(--font-weight-bold); white-space: nowrap; }
.tag-warn { background: var(--color-primary-100); color: var(--color-primary-900); }
.tag-ok { background: var(--color-accent-chartreuse-soft); color: var(--color-accent-green-900); }

/* 3. Problem */
.rule { margin: 0 0 clamp(var(--space-48), 7vw, var(--space-96)); border: 0; border-top: 1px solid var(--color-border); }
.section-tight .btn { margin-top: var(--space-32); }
.gilded {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(var(--space-16), 3vw, var(--space-48));
  margin: clamp(var(--space-32), 5vw, var(--space-64)) var(--inset) 0;
  padding: clamp(var(--space-24), 5vw, var(--space-64)) clamp(var(--space-16), 3vw, var(--space-48));
  border-radius: var(--radius-xl);
  background:
    radial-gradient(40% 60% at 50% 50%, rgba(255,255,255,.7), rgba(255,255,255,0) 70%),
    radial-gradient(30% 50% at 0% 0%, #C9A86A 0%, rgba(201,168,106,0) 70%),
    radial-gradient(30% 50% at 100% 100%, #C9A86A 0%, rgba(201,168,106,0) 70%),
    linear-gradient(135deg, #E9D9B4, #F6EEDC 50%, #E2CC9C);
}
.fact-card { display: flex; flex-direction: column; justify-content: space-between; gap: var(--space-48); min-height: 240px; padding: clamp(var(--space-24), 3vw, var(--space-48)); border-radius: var(--radius-xl); background: rgba(252,251,248,.94); box-shadow: var(--shadow-sm); }
.fact-card h3 { font-size: clamp(1.75rem, 1.2rem + 1.8vw, 2.6rem); line-height: 1.02; letter-spacing: -0.03em; max-width: 14ch; }
.fact-card h3 em { color: var(--color-primary-700); }
.fact-card p { color: var(--color-text-muted); font-size: .9375rem; }

/* 4 & 7. Duo split panels */
.duo { display: grid; grid-template-columns: 1fr 1fr; margin: var(--inset); border-radius: var(--radius-xl); overflow: hidden; }
.duo-visual { position: relative; display: grid; place-items: end start; min-height: 520px; padding: clamp(var(--space-24), 4vw, var(--space-48)); background: radial-gradient(70% 60% at 30% 30%, #F9C7A8 0%, rgba(249,199,168,0) 70%), linear-gradient(180deg, #8FB3E0 0%, #6E95D0 100%); }
.duo-visual-warm { place-items: center; background: radial-gradient(60% 60% at 70% 20%, #FFE5DE 0%, rgba(255,229,222,0) 70%), linear-gradient(160deg, #F7D9A8 0%, #F2B47E 50%, #E77E52 100%); }
.duo-panel { display: flex; flex-direction: column; justify-content: center; padding: clamp(var(--space-32), 5vw, var(--space-64)); background: var(--color-accent-green-900); color: rgba(255,255,255,.86); }
.duo-panel .h2 { color: var(--color-accent-chartreuse); max-width: 11ch; }
.duo-panel .h2 em { color: #fff; }

.bubble { display: flex; gap: var(--space-12); align-items: flex-end; max-width: 360px; }
.avatar { flex: none; display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%; background: var(--color-surface-card); box-shadow: var(--shadow-md); }
.bubble p { padding: var(--space-16) var(--space-24); border-radius: 22px 22px 22px 6px; background: rgba(255,255,255,.9); -webkit-backdrop-filter: var(--blur-frosted); backdrop-filter: var(--blur-frosted); color: var(--color-text-display); box-shadow: var(--shadow-lg); font-size: 1rem; line-height: 1.4; }
.muted-label { display: block; margin-bottom: var(--space-4); color: var(--color-text-muted); font-size: .8125rem; font-weight: var(--font-weight-medium); }

.ticks { display: grid; gap: var(--space-16); margin: var(--space-32) 0; }
.ticks li { display: flex; align-items: center; gap: var(--space-12); font-size: 1.0625rem; }
.ticks svg { width: 20px; height: 20px; flex: none; color: var(--color-accent-chartreuse); stroke: var(--color-accent-green-900); }
.ticks-dark li { color: var(--color-text-display); font-size: 1rem; font-weight: var(--font-weight-medium); }
.ticks-dark svg { color: var(--color-accent-chartreuse); stroke: var(--color-text-display); }

.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-12); }
.tile { padding: var(--space-16) var(--space-24); border-radius: var(--radius-lg); background: var(--color-accent-chartreuse); color: var(--color-text-display); }
.tile strong { display: block; font: var(--font-weight-medium) 2rem/1.1 var(--font-family-display); letter-spacing: -0.03em; }
.tile span { font-size: .9375rem; }

/* 5. Rail */
.rail { margin-top: clamp(var(--space-32), 5vw, var(--space-64)); overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding: var(--space-24) 0 var(--space-8); }
.rail::-webkit-scrollbar { display: none; }
.rail:focus-visible { outline-offset: -3px; }
.rail-track { display: flex; gap: var(--space-24); width: max-content; padding-inline: max(var(--gutter), calc((100vw - var(--container)) / 2 + var(--gutter))); }
.flag-card { position: relative; scroll-snap-align: center; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-end; gap: var(--space-16); width: min(78vw, 400px); min-height: 380px; padding: var(--space-48) var(--space-24) var(--space-24); border-radius: var(--radius-xl); }
.flag-card .badge { position: absolute; top: calc(var(--space-24) * -1); left: var(--space-24); padding: var(--space-12) var(--space-24); border-radius: var(--radius-pill); background: var(--color-accent-chartreuse); color: var(--color-text-display); font: var(--font-weight-medium) 1.125rem var(--font-family-display); letter-spacing: -0.01em; box-shadow: var(--shadow-md); }
.flag-card p { align-self: stretch; padding: var(--space-24); border-radius: var(--radius-lg); background: var(--color-surface-card); color: var(--color-text-display); box-shadow: var(--shadow-lg); font-size: 1.0625rem; line-height: 1.4; }
.flag-card p strong { font-weight: var(--font-weight-bold); }
.g1 { background: linear-gradient(160deg, #F3E1C7, #D9B98C); }
.g2 { background: linear-gradient(160deg, #DCE7F3, #E7D5D0 55%, #AFC7DD); }
.g3 { background: linear-gradient(160deg, #F2F6B8, #CFE7A2 50%, #A9D38E); }
.g4 { background: linear-gradient(160deg, #F7D0BF, #EFA98C); }
.g5 { background: linear-gradient(160deg, #D9E8DA, #A8C8B1); }
.g6 { background: linear-gradient(160deg, #E6E0F5, #C7BCE6); }

/* 6. Pricing */
.pricing { background: radial-gradient(60% 80% at 50% 0%, rgba(243,241,236,1) 0%, rgba(243,241,236,0) 70%), repeating-radial-gradient(circle at 15% 40%, rgba(21,21,21,0) 0 22px, rgba(21,21,21,.035) 22px 23px), var(--color-surface-muted); margin-inline: var(--inset); border-radius: var(--radius-xl); }
.pricing .h2 em { color: var(--color-accent-green); }
.price-card { display: grid; grid-template-columns: 1fr 1fr; max-width: 980px; margin: clamp(var(--space-32), 5vw, var(--space-64)) auto var(--space-32); padding: clamp(var(--space-24), 4vw, var(--space-48)); border-radius: var(--radius-xl); background: var(--color-surface-card); box-shadow: var(--shadow-sm); text-align: left; }
.price-main { display: flex; flex-direction: column; padding-right: clamp(var(--space-24), 4vw, var(--space-48)); border-right: 1px solid var(--color-border); }
.price-main .chip { align-self: flex-start; }
.price { margin-top: auto; padding-top: var(--space-48); color: var(--color-text-display); font: var(--font-weight-medium) var(--font-size-3xl)/1 var(--font-family-display); letter-spacing: -0.04em; }
.placeholder { color: var(--color-primary-700); }
.price-note { margin-top: var(--space-12); max-width: 26ch; }
.price-free { padding-left: clamp(var(--space-24), 4vw, var(--space-48)); }
.price-free .ticks { margin: var(--space-8) 0 0; }

/* 7. Waitlist */
.duo-light .duo-panel { background: var(--color-surface-muted); color: var(--color-text-body); }
.duo-light .duo-panel .h2 { color: var(--color-text-display); max-width: 12ch; }
.form-sub { margin: var(--space-12) 0 var(--space-32); font-size: 1.0625rem; }
.stack { position: relative; width: min(100%, 340px); }
.stack-card { position: relative; padding: var(--space-32); border-radius: var(--radius-xl); background: var(--color-surface-card); box-shadow: var(--shadow-xl); color: var(--color-text-display); }
.stack-card.back { position: absolute; inset: 0; transform: rotate(-6deg) translate(-14px, 10px); background: rgba(255,255,255,.55); box-shadow: none; }
.stack-label { color: var(--color-text-muted); font-size: .875rem; }
.stack-status { display: flex; align-items: center; gap: var(--space-8); margin: var(--space-8) 0 var(--space-24); font: var(--font-weight-medium) 1.75rem/1.1 var(--font-family-display); letter-spacing: -0.03em; }
.stack-status svg { width: 26px; height: 26px; color: var(--color-accent-chartreuse); stroke: var(--color-text-display); }
.bar { height: 8px; border-radius: var(--radius-pill); background: var(--color-surface-muted); overflow: hidden; }
.bar i { display: block; width: 62%; height: 100%; border-radius: inherit; background: var(--color-primary-500); animation: grow 2.4s ease-out both; }
@keyframes grow { from { width: 8%; } }
.stack-foot { margin-top: var(--space-16); color: var(--color-text-muted); font-size: .875rem; }

.form { display: grid; gap: var(--space-16); max-width: 460px; }
.field { display: grid; gap: var(--space-8); }
label { color: var(--color-text-display); font-size: .875rem; font-weight: var(--font-weight-medium); }
.optional, .hint { color: var(--color-text-muted); font-weight: var(--font-weight-regular); }
.hint, .error { font-size: .8125rem; }
.error { color: var(--color-primary-700); font-weight: var(--font-weight-medium); }
input {
  width: 100%; min-height: 56px; padding: 0 var(--space-16);
  border: 1px solid #C9C5BC; border-radius: var(--radius-lg);
  background: var(--color-surface-card); color: var(--color-text-display);
  font: var(--font-weight-medium) 1.125rem var(--font-family-body);
  transition: border-color .15s, box-shadow .15s;
}
input::placeholder { color: #8C8A84; }
input:focus { outline: none; border-color: var(--color-accent-green); box-shadow: 0 0 0 4px rgba(193, 250, 129, .7); }
input[aria-invalid="true"] { border-color: var(--color-primary-700); }
.input-prefix { position: relative; }
.input-prefix span { position: absolute; left: var(--space-16); top: 50%; transform: translateY(-50%); color: var(--color-text-muted); font-size: 1.125rem; font-weight: var(--font-weight-medium); }
.input-prefix input { padding-left: 2rem; }
.form .btn { margin-top: var(--space-8); }
.fine-print { color: var(--color-text-muted); font-size: .8125rem; text-align: center; }
.success { display: grid; gap: var(--space-16); justify-items: start; }
.success:focus { outline: none; }
.success-icon { width: 56px; height: 56px; color: var(--color-accent-chartreuse); stroke: var(--color-text-display); }
.success p { max-width: 36ch; font-size: 1.0625rem; }

/* 8. Financial aid */
.aid { margin: var(--inset); padding-block: clamp(var(--space-64), 8vw, var(--space-96)); border-radius: var(--radius-xl); background: var(--color-accent-green-900); color: rgba(255,255,255,.86); }
.aid .h2 { color: #fff; max-width: 13ch; }
.aid .h2 em { color: var(--color-accent-chartreuse); }
.aid-sub { max-width: 40ch; margin: var(--space-16) 0 var(--space-48); font-size: 1.0625rem; }
.aid-rows { display: grid; gap: var(--space-12); }
.aid-rows li { display: flex; align-items: center; gap: var(--space-16); padding: var(--space-12) var(--space-24) var(--space-12) var(--space-12); border-radius: var(--radius-pill); background: var(--color-surface-base); color: var(--color-text-body); }
.aid-rows li:first-child { background: var(--color-accent-chartreuse); color: var(--color-text-display); }
.aid-rows strong { display: block; color: var(--color-text-display); font: var(--font-weight-medium) 1.125rem/1.3 var(--font-family-display); }
.aid-rows span:not(.aid-icon) { font-size: .9375rem; }
.aid-icon { flex: none; display: grid; place-items: center; width: 48px; height: 48px; border-radius: 50%; background: var(--color-surface-muted); color: var(--color-text-display); font: var(--font-weight-bold) 1.125rem var(--font-family-display); }
.aid-rows li:first-child .aid-icon { background: rgba(255,255,255,.6); }

/* 9. FAQ */
#faq .h2 { text-align: center; margin-bottom: var(--space-48); }
.faq { display: grid; gap: var(--space-8); }
.faq summary { font-size: 1rem; padding-block: var(--space-12); }
.faq details p { padding: 0 var(--space-24) var(--space-24); max-width: 60ch; }

/* 10. Final CTA */
.final { padding-top: 0; }
.final-mark { display: grid; place-items: center; width: 120px; height: 120px; margin: 0 auto var(--space-32); border-radius: 50%; background: radial-gradient(circle at 30% 25%, #fff, var(--color-accent-chartreuse) 70%); box-shadow: var(--shadow-lg); }
.final-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: var(--space-12); margin-top: var(--space-32); }

/* Footer */
.site-footer { padding: var(--space-48) 0 var(--space-32); overflow: hidden; }
.footer-top { display: flex; justify-content: space-between; gap: var(--space-48); flex-wrap: wrap; padding-bottom: var(--space-48); border-bottom: 1px solid var(--color-border); }
.footer-title { color: var(--color-text-display); font: var(--font-weight-medium) clamp(2rem, 1.5rem + 2vw, 3rem)/.98 var(--font-family-display); letter-spacing: -0.035em; }
.footer-sub { margin-top: var(--space-12); }
.footer-cols { display: flex; gap: clamp(var(--space-48), 8vw, var(--space-128)); }
.col-title { margin-bottom: var(--space-16); color: var(--color-text-muted); font-size: .875rem; }
.footer-cols ul { display: grid; gap: var(--space-12); }
.footer-cols a { color: var(--color-text-display); text-decoration: none; font-weight: var(--font-weight-medium); }
.footer-cols a:hover { text-decoration: underline; }
.footer-bottom { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-24); flex-wrap: wrap; padding-block: var(--space-24); font-size: .8125rem; color: var(--color-text-muted); }
.disclaimer { max-width: 62ch; }
.copyright strong { color: var(--color-text-display); }
.wordmark { margin: var(--space-16) 0 0; color: #D8D5CD; font: var(--font-weight-medium) clamp(3rem, 15.4vw, 13.4rem)/1.05 var(--font-family-display); letter-spacing: -0.055em; white-space: nowrap; user-select: none; }

/* Responsive */
@media (max-width: 960px) {
  .hero-panel { grid-template-columns: 1fr; align-items: start; min-height: 0; gap: var(--space-32); }
  .hero-mock { justify-self: stretch; width: 100%; }
  .split, .duo { grid-template-columns: 1fr; }
  .visual { min-height: 360px; }
  .duo-visual { min-height: 320px; }
  .trust-strip { grid-template-columns: 1fr 1fr; row-gap: var(--space-12); }
  .trust-strip li:nth-child(3) { border-left: 0; }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .brand span { font-size: 1rem; }
  .header-inner { gap: var(--space-16); justify-content: space-between; }
  .site-header nav { display: none; }
  .gilded, .price-card { grid-template-columns: 1fr; }
  .fact-card { min-height: 0; gap: var(--space-32); }
  .price-main { padding: 0 0 var(--space-32); border-right: 0; border-bottom: 1px solid var(--color-border); }
  .price { padding-top: var(--space-24); }
  .price-free { padding: var(--space-32) 0 0; }
  .aid-rows li { border-radius: var(--radius-xl); align-items: flex-start; }
  .footer-top { flex-direction: column; }
  .hero-sub, .lede { font-size: 1.0625rem; }
}
@media (max-width: 420px) {
  .header-inner .btn-sm { padding: 0 var(--space-16); }
  .tiles { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}