/* AddictionStopper — Claude-inspired marketing site */

:root {
  --canvas:        #F0EEE6;
  --canvas-deep:   #E9E6DB;
  --surface:       #FFFFFF;
  --surface-alt:   #FBFAF6;
  --surface-sunk:  #EAE7DC;

  --ink:           #2A2824;
  --ink-2:         #6C6961;
  --ink-3:         #9A968A;
  --hairline:      rgba(42, 40, 36, 0.10);

  --clay:          #C26340;
  --clay-warm:     #D97757;
  --clay-soft:     #F1E1D8;
  --clay-ink:      #7A3A24;

  --sage:          #6B8266;
  --sage-soft:     #E4E8DD;
  --sage-ink:      #3C4B38;

  --sky:           #5E7A94;
  --sky-soft:      #DFE6EB;
  --sky-ink:       #35485A;

  --amber:         #C68C40;
  --amber-soft:    #F3E7CF;
  --amber-ink:     #7A5420;

  --rust:          #B34A3B;
  --rust-soft:     #F1DDD7;
  --rust-ink:      #6F2A20;

  --radius-card:   22px;
  --radius-tile:   18px;
  --radius-btn:    14px;
  --radius-chip:   999px;

  --shadow-card:   0 8px 24px rgba(42, 40, 36, 0.07);
  --shadow-soft:   0 2px 8px rgba(42, 40, 36, 0.04);
  --shadow-deep:   0 16px 48px rgba(42, 40, 36, 0.10);

  --pad-page:      max(24px, min(5vw, 64px));
  --max-w:         1180px;

  --serif:         'Lora', 'New York', Georgia, 'Times New Roman', serif;
  --sans:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--canvas);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

[dir="rtl"] body { text-align: right; }

img, svg { display: block; max-width: 100%; }

a {
  color: var(--clay-ink);
  text-decoration: none;
  transition: color 0.18s;
}
a:hover { color: var(--clay); }

/* Typography */

.serif { font-family: var(--serif); }
.eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-2);
}

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.15; margin: 0; color: var(--ink); }
h1 { font-size: clamp(40px, 6vw, 64px); letter-spacing: -0.01em; }
h2 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.005em; }
h3 { font-size: clamp(20px, 2.5vw, 24px); }

p { margin: 0 0 1em; color: var(--ink-2); }

.lead { font-size: 18px; color: var(--ink-2); }
.muted { color: var(--ink-3); }

/* Layout */

.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-page);
}

section { padding: clamp(56px, 8vw, 110px) 0; position: relative; }
section.tight { padding: clamp(36px, 5vw, 64px) 0; }

.row { display: flex; gap: 24px; }
.col { flex: 1; }

/* Page background warmth */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(45vw 38vw at 100% -10%, rgba(217, 119, 87, 0.10), transparent 60%),
    radial-gradient(35vw 32vw at 0% 110%, rgba(94, 122, 148, 0.08), transparent 60%);
  z-index: -1;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(240, 238, 230, 0.85);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--hairline);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif);
  font-weight: 600;
  font-size: 18px;
  color: var(--ink);
}
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: radial-gradient(circle at 35% 35%, var(--clay-warm), var(--clay) 70%);
  position: relative;
  box-shadow: 0 4px 12px rgba(194, 99, 64, 0.30);
}
.brand-mark::after {
  content: '';
  position: absolute; inset: 0;
  display: grid; place-items: center;
}
.brand-mark::before {
  content: '';
  width: 14px; height: 12px;
  position: absolute; left: 9px; top: 10px;
  background:
    radial-gradient(circle at 30% 30%, white 50%, transparent 51%) 0 0/7px 7px no-repeat,
    radial-gradient(circle at 70% 30%, white 50%, transparent 51%) 7px 0/7px 7px no-repeat;
}
.brand-mark i {
  position: absolute; left: 11px; top: 12px;
  width: 10px; height: 8px; background: white;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Language switcher */
details.lang {
  position: relative;
  font-size: 14px;
}
details.lang > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-btn);
  background: var(--surface);
  border: 1px solid var(--hairline);
  color: var(--ink);
  font-weight: 500;
  transition: background 0.18s, border-color 0.18s;
}
details.lang > summary:hover { background: var(--surface-alt); border-color: rgba(42,40,36,0.18); }
details.lang > summary::-webkit-details-marker { display: none; }
details.lang[open] > summary { background: var(--clay-soft); border-color: var(--clay); color: var(--clay-ink); }
details.lang .panel {
  position: absolute;
  inset-inline-end: 0;
  top: calc(100% + 8px);
  width: min(720px, 90vw);
  max-height: 70vh;
  overflow: auto;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-deep);
  padding: 18px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 4px 14px;
  font-size: 14px;
}
details.lang .panel a {
  padding: 7px 10px;
  border-radius: 8px;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden; text-overflow: ellipsis;
}
details.lang .panel a:hover { background: var(--clay-soft); color: var(--clay-ink); }
details.lang .panel a.current {
  background: var(--clay-soft);
  color: var(--clay-ink);
  font-weight: 600;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s, background 0.18s, color 0.18s, border-color 0.18s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--clay);
  color: white;
  box-shadow: 0 6px 18px rgba(194, 99, 64, 0.30);
}
.btn-primary:hover { background: var(--clay-ink); transform: translateY(-1px); color: white; }
.btn-ghost {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--hairline);
}
.btn-ghost:hover { background: var(--surface-alt); border-color: rgba(42,40,36,0.20); color: var(--ink); }
.btn .arrow { transition: transform 0.18s; }
.btn:hover .arrow { transform: translateX(3px); }
[dir="rtl"] .btn:hover .arrow { transform: translateX(-3px); }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Hero */

.hero {
  padding-top: clamp(48px, 7vw, 96px);
  padding-bottom: clamp(48px, 7vw, 96px);
}
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(36px, 6vw, 80px);
  align-items: center;
}
.hero .copy h1 { margin-top: 14px; }
.hero .copy p { margin-top: 18px; font-size: 18px; max-width: 540px; }
.hero .cta-row { margin-top: 26px; }
.hero .trust {
  margin-top: 26px;
  display: flex; align-items: center; gap: 10px;
  color: var(--ink-3); font-size: 13px;
}
.hero .trust .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--sage); }

/* Phone mockup */
.phone {
  --w: 300px;
  width: var(--w);
  aspect-ratio: 9 / 19;
  margin: 0 auto;
  background: #1f1d1a;
  border-radius: 38px;
  padding: 10px;
  position: relative;
  box-shadow: var(--shadow-deep), 0 40px 80px rgba(42, 40, 36, 0.18);
}
.phone .screen {
  width: 100%; height: 100%;
  border-radius: 30px;
  background: var(--canvas);
  overflow: hidden;
  position: relative;
  padding: 22px 18px;
  display: flex; flex-direction: column;
}
.phone .notch {
  position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  width: 90px; height: 26px; background: #1f1d1a;
  border-radius: 0 0 16px 16px;
  z-index: 2;
}
.phone .eyebrow-x { font-size: 9px; letter-spacing: 0.18em; color: var(--ink-3); text-transform: uppercase; margin-top: 18px; }
.phone .greet { font-family: var(--serif); font-size: 20px; color: var(--ink); margin-top: 4px; font-weight: 600; }
.phone .ring-card {
  margin-top: 14px; background: var(--surface);
  border-radius: 18px; padding: 14px;
  box-shadow: var(--shadow-soft);
  display: flex; flex-direction: column; align-items: center;
  border: 1px solid var(--hairline);
}
.phone .pill {
  font-size: 9px; letter-spacing: 0.10em; text-transform: uppercase;
  color: var(--clay-ink); background: var(--clay-soft);
  padding: 4px 9px; border-radius: 999px; font-weight: 600;
}
.phone .ring {
  --p: 73;
  width: 110px; height: 110px; border-radius: 50%;
  margin-top: 8px;
  background: conic-gradient(var(--clay) calc(var(--p)*1%), var(--surface-sunk) 0);
  display: grid; place-items: center;
  position: relative;
}
.phone .ring::before {
  content: ''; position: absolute; inset: 9px;
  background: var(--surface); border-radius: 50%;
}
.phone .ring .days {
  position: relative; font-family: var(--serif); font-size: 36px; font-weight: 600; color: var(--ink);
}
.phone .ring .lbl {
  position: relative; font-size: 9px; color: var(--ink-2); margin-top: -2px;
}
.phone .next-mile {
  margin-top: 8px; font-size: 9px; color: var(--ink-2);
}
.phone .stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px;
  margin-top: 10px;
}
.phone .stat {
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: 12px; padding: 8px;
  display: flex; flex-direction: column; gap: 2px;
}
.phone .stat .num { font-family: var(--serif); font-size: 14px; color: var(--ink); font-weight: 600; }
.phone .stat .lab { font-size: 8px; color: var(--ink-3); }
.phone .quote-card {
  background: var(--clay-soft); border-radius: 14px; padding: 10px;
  margin-top: 10px; font-family: var(--serif); font-style: italic;
  font-size: 11px; color: var(--ink); line-height: 1.45;
}
.phone .sos {
  position: absolute; right: 16px; bottom: 70px;
  width: 42px; height: 42px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--rust), var(--rust-ink));
  display: grid; place-items: center;
  color: white; font-size: 9px; font-weight: 800; letter-spacing: 0.06em;
  box-shadow: 0 4px 12px rgba(179, 74, 59, 0.4);
}
.phone .tabbar {
  margin-top: auto; padding-top: 8px; border-top: 1px solid var(--hairline);
  display: flex; justify-content: space-around;
  font-size: 8px; color: var(--ink-3);
}
.phone .tabbar .tab { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.phone .tabbar .tab.active { color: var(--clay); font-weight: 700; }

/* Stat strip */

.stat-strip {
  background: var(--surface);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.stat-strip .container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.stat-strip .item { text-align: center; padding: 12px; }
.stat-strip .num {
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 56px);
  font-weight: 600;
  color: var(--clay);
  line-height: 1;
}
.stat-strip .lab {
  margin-top: 8px;
  font-size: 14px;
  color: var(--ink-2);
}
.stat-strip .src {
  margin-top: 4px;
  font-size: 11px;
  color: var(--ink-3);
  font-style: italic;
}

/* Section heading helper */

.section-head { text-align: center; max-width: 720px; margin: 0 auto clamp(36px, 5vw, 56px); }
.section-head .eyebrow { color: var(--clay-ink); }
.section-head h2 { margin-top: 8px; }
.section-head p { margin-top: 14px; font-size: 17px; }

/* Feature grid */

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  padding: 24px;
  box-shadow: var(--shadow-card);
  display: flex; flex-direction: column;
  transition: transform 0.22s, box-shadow 0.22s;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-deep); }
.feature-card .icon {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: grid; place-items: center;
  font-size: 22px;
  margin-bottom: 14px;
}
.feature-card.clay .icon  { background: var(--clay-soft);  color: var(--clay-ink); }
.feature-card.sage .icon  { background: var(--sage-soft);  color: var(--sage-ink); }
.feature-card.sky .icon   { background: var(--sky-soft);   color: var(--sky-ink); }
.feature-card.amber .icon { background: var(--amber-soft); color: var(--amber-ink); }
.feature-card.rust .icon  { background: var(--rust-soft);  color: var(--rust-ink); }
.feature-card h3 { font-family: var(--serif); font-size: 22px; color: var(--ink); }
.feature-card p  { color: var(--ink-2); font-size: 15px; margin-top: 8px; }
.feature-card .cite {
  margin-top: auto;
  padding-top: 14px;
  font-size: 12px;
  color: var(--ink-3);
  border-top: 1px solid var(--hairline);
  display: flex; align-items: center; gap: 6px;
}
.feature-card .cite span.badge {
  background: var(--clay-soft);
  color: var(--clay-ink);
  padding: 2px 7px;
  border-radius: 5px;
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.02em;
}

/* Science section */

.science-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}
.paper {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-tile);
  padding: 20px;
  display: flex; flex-direction: column; gap: 8px;
  box-shadow: var(--shadow-soft);
  transition: border-color 0.18s, transform 0.18s;
}
.paper:hover { border-color: rgba(42,40,36,0.20); transform: translateY(-2px); }
.paper .src {
  display: inline-block;
  align-self: flex-start;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 5px;
  background: var(--sage-soft);
  color: var(--sage-ink);
}
.paper h4 {
  font-family: var(--serif);
  font-size: 17px;
  margin: 0;
  line-height: 1.3;
  color: var(--ink);
}
.paper .authors {
  font-size: 12px;
  color: var(--ink-3);
  font-style: italic;
}
.paper .finding {
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.5;
}
.paper .doi {
  font-size: 11px;
  color: var(--ink-3);
  margin-top: 4px;
}
.paper .doi a { color: var(--sky-ink); }

/* Institutions strip */
.institutions {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 12px 16px;
  margin: 24px auto;
  max-width: 900px;
}
.institutions span {
  font-family: var(--serif);
  font-style: italic;
  color: var(--ink-2);
  font-size: 16px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 999px;
}

/* How it works */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  counter-reset: stepcount;
}
.step {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  padding: 24px;
  position: relative;
  box-shadow: var(--shadow-soft);
}
.step::before {
  counter-increment: stepcount;
  content: counter(stepcount);
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 700;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--clay-soft);
  color: var(--clay-ink);
  display: grid; place-items: center;
  margin-bottom: 14px;
}
.step h3 { font-family: var(--serif); font-size: 19px; }
.step p { font-size: 14px; margin-top: 8px; color: var(--ink-2); }

/* Privacy section */

.privacy-section {
  background: var(--surface);
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}
.privacy-section .container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: center;
}
.privacy-points { display: grid; gap: 14px; }
.privacy-points .point {
  display: flex; align-items: flex-start; gap: 14px;
}
.privacy-points .check {
  flex: none;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--sage-soft);
  color: var(--sage-ink);
  display: grid; place-items: center;
  font-weight: 800;
}
.privacy-points h4 { font-family: var(--sans); font-size: 16px; margin: 0 0 4px; color: var(--ink); }
.privacy-points p { font-size: 14px; margin: 0; color: var(--ink-2); }

/* Help section */

.help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.help-card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-tile);
  padding: 20px;
  display: flex; flex-direction: column; gap: 8px;
}
.help-card h4 { font-family: var(--sans); font-size: 16px; margin: 0; color: var(--ink); }
.help-card .sub { font-size: 12px; color: var(--ink-3); text-transform: uppercase; letter-spacing: 0.06em; }
.help-card .contact { font-family: var(--serif); font-size: 22px; color: var(--rust); margin: 4px 0; }
.help-card p { font-size: 13px; color: var(--ink-2); margin: 0; }
.help-card a.contact:hover { text-decoration: underline; }

/* CTA banner */

.cta-banner {
  background: linear-gradient(135deg, var(--clay) 0%, var(--clay-warm) 100%);
  color: white;
}
.cta-banner .container {
  text-align: center;
  padding: clamp(48px, 7vw, 80px) var(--pad-page);
}
.cta-banner h2 { color: white; margin-bottom: 14px; }
.cta-banner p { color: rgba(255,255,255,0.90); max-width: 560px; margin: 0 auto 28px; font-size: 17px; }
.cta-banner .btn-primary {
  background: white;
  color: var(--clay-ink);
  box-shadow: 0 6px 20px rgba(0,0,0,0.18);
}
.cta-banner .btn-primary:hover { background: var(--canvas); color: var(--clay-ink); }
.cta-banner .btn-ghost {
  background: rgba(255,255,255,0.16);
  color: white;
  border-color: rgba(255,255,255,0.32);
}
.cta-banner .btn-ghost:hover { background: rgba(255,255,255,0.24); color: white; }

/* Footer */

.site-footer {
  background: var(--canvas-deep);
  padding: 56px 0 32px;
  color: var(--ink-2);
  font-size: 14px;
}
.site-footer .top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
}
.site-footer h5 {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  color: var(--ink);
  margin: 0 0 14px;
}
.site-footer a { color: var(--ink-2); display: block; padding: 4px 0; }
.site-footer a:hover { color: var(--clay-ink); }
.site-footer .disclaimer {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  font-size: 12px;
  color: var(--ink-3);
  line-height: 1.6;
}
.site-footer .disclaimer strong { color: var(--ink-2); }
.site-footer .meta {
  margin-top: 16px;
  display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between;
  font-size: 12px; color: var(--ink-3);
}

/* Privacy page */

.legal {
  padding: clamp(48px, 7vw, 96px) 0;
}
.legal .container { max-width: 760px; }
.legal h1 { font-size: clamp(34px, 4.5vw, 44px); margin-bottom: 8px; }
.legal .updated { color: var(--ink-3); font-size: 13px; margin-bottom: 36px; }
.legal h2 { font-size: 22px; margin-top: 36px; margin-bottom: 10px; }
.legal p, .legal ul { color: var(--ink-2); font-size: 16px; }
.legal ul { padding-inline-start: 22px; }
.legal li { margin-bottom: 6px; }
.legal a.back { color: var(--ink-3); font-size: 14px; }
.legal a.back:hover { color: var(--clay-ink); }

/* Responsive */

@media (max-width: 880px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero .visual { order: -1; }
  .stat-strip .container { grid-template-columns: 1fr; gap: 18px; }
  .privacy-section .container { grid-template-columns: 1fr; gap: 32px; }
  .site-footer .top { grid-template-columns: 1fr 1fr; gap: 24px; }
  .nav-actions .btn-ghost { display: none; }
}

@media (max-width: 520px) {
  .site-footer .top { grid-template-columns: 1fr; }
  .phone { --w: 270px; }
}