/* ═══════════════════════════════════════════════════
   CORLA.AI — SHARED STYLESHEET
   Dark premium theme · Syne + Outfit + JetBrains Mono
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=Outfit:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── LIGHT THEME (default) ─────────────── */
:root {
  --bg:       #F7F5F0;
  --bg2:      #EFECEA;
  --bg3:      #E6E3DD;
  --bg4:      #DAD6CF;
  --border:   rgba(0,0,0,0.09);
  --border-h: rgba(0,0,0,0.18);
  --amber:    #C97C08;
  --amber-d:  rgba(201,124,8,0.12);
  --amber-d2: rgba(201,124,8,0.06);
  --blue:     #2D62E8;
  --blue-d:   rgba(45,98,232,0.1);
  --green:    #15803D;
  --green-d:  rgba(21,128,61,0.1);
  --red:      #DC2626;
  --purple:   #7C3AED;
  --t1:       #0F1014;
  --t2:       #4A4E62;
  --t3:       #9096AA;
  --mono:     'JetBrains Mono', monospace;
  --display:  'Syne', sans-serif;
  --body:     'Outfit', sans-serif;
  --r:        10px;
  --r2:       16px;
  --r3:       20px;
  --shadow:   0 4px 24px rgba(0,0,0,0.10);
  --shadow-lg:0 12px 48px rgba(0,0,0,0.18);
  /* hover tints */
  --hover-tint: rgba(0,0,0,0.04);
  --hover-tint2: rgba(0,0,0,0.07);
  /* hero grid line color */
  --grid-line: rgba(0,0,0,0.055);
}

/* ── DARK THEME (opt-in via data-theme="dark") ─ */
[data-theme="dark"] {
  --bg:       #08090D;
  --bg2:      #0D0F18;
  --bg3:      #111422;
  --bg4:      #161926;
  --border:   rgba(255,255,255,0.07);
  --border-h: rgba(255,255,255,0.14);
  --amber:    #E8980C;
  --amber-d:  rgba(232,152,12,0.13);
  --amber-d2: rgba(232,152,12,0.06);
  --blue:     #4F7EFF;
  --blue-d:   rgba(79,126,255,0.12);
  --green:    #22C55E;
  --green-d:  rgba(34,197,94,0.1);
  --red:      #F87171;
  --purple:   #A78BFA;
  --t1:       #EDEAE3;
  --t2:       #8A8EA6;
  --t3:       #454861;
  --shadow:   0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:0 12px 48px rgba(0,0,0,0.6);
  --hover-tint: rgba(255,255,255,0.05);
  --hover-tint2: rgba(255,255,255,0.08);
  --grid-line: rgba(255,255,255,0.022);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--t1);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
  opacity: 0.2;
}
[data-theme="dark"] body::before { opacity: 0.4; }

/* ── TYPOGRAPHY ─────────────────────────── */
h1,h2,h3,h4,h5 { font-family: var(--display); line-height: 1.15; color: var(--t1); }
h1 { font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; letter-spacing: -0.025em; }
h2 { font-size: clamp(1.75rem, 3vw, 2.6rem); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; }
p  { color: var(--t2); line-height: 1.8; }
a  { color: inherit; text-decoration: none; }
strong { color: var(--t1); font-weight: 600; }
em { color: var(--amber); font-style: normal; }
code {
  font-family: var(--mono); font-size: 0.85em;
  background: var(--bg3); border: 1px solid var(--border);
  padding: 2px 6px; border-radius: 4px; color: var(--amber);
}
pre {
  font-family: var(--mono); font-size: 0.85rem;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--r2); padding: 24px; overflow-x: auto;
  line-height: 1.7; color: var(--t1);
}

/* ── LAYOUT ─────────────────────────────── */
.wrap { max-width: 1140px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 1; }
.wrap-narrow { max-width: 800px; margin: 0 auto; padding: 0 28px; position: relative; z-index: 1; }
section { padding: 96px 0; }

/* ── NAV ────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 200;
  border-bottom: 1px solid var(--border);
  background: rgba(247,245,240,0.88);
}
[data-theme="dark"] nav {
  background: rgba(8,9,13,0.88);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}
.nav-inner {
  max-width: 1140px; margin: 0 auto; padding: 0 28px;
  height: 66px; display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.nav-logo {
  font-family: var(--display); font-size: 1.2rem; font-weight: 800;
  display: flex; align-items: center; gap: 8px; flex-shrink: 0;
  text-decoration: none; color: var(--t1);
}
.logo-mark {
  width: 28px; height: 28px; border-radius: 7px;
  background: var(--amber-d); border: 1px solid rgba(232,152,12,0.3);
  display: flex; align-items: center; justify-content: center;
}
.logo-mark::after {
  content: ''; display: block;
  width: 10px; height: 10px; border-radius: 50%; background: var(--amber);
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-size: 0.875rem; color: var(--t2); font-weight: 500; padding: 7px 12px;
  border-radius: 8px; transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--t1); background: var(--hover-tint); }
.nav-links a.active { color: var(--t1); }
.nav-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.nav-blog-btn {
  font-size: 0.875rem; color: var(--t2); font-weight: 500; padding: 7px 12px;
  border-radius: 8px; transition: color 0.2s, background 0.2s;
  background: none; border: none; cursor: pointer; font-family: var(--body);
}
.nav-blog-btn:hover { color: var(--t1); background: var(--hover-tint); }
.nav-cta {
  background: var(--amber); color: #000; font-weight: 700; font-size: 0.85rem;
  padding: 9px 20px; border-radius: 8px; font-family: var(--body);
  border: none; cursor: pointer; transition: opacity 0.2s, transform 0.15s;
  white-space: nowrap;
}
.nav-cta:hover { opacity: 0.88; transform: translateY(-1px); }
.hamburger {
  display: none; background: none; border: none; cursor: pointer;
  padding: 8px; color: var(--t2);
}

/* ── MOBILE NAV ─────────────────────────── */
.mobile-menu {
  display: none; position: fixed; inset: 66px 0 0;
  background: rgba(247,245,240,0.97); backdrop-filter: blur(24px);
}
[data-theme="dark"] .mobile-menu {
  background: rgba(8,9,13,0.97); backdrop-filter: blur(24px);
  z-index: 199; padding: 24px 28px;
  flex-direction: column; gap: 8px;
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  font-size: 1rem; color: var(--t2); padding: 12px 0;
  border-bottom: 1px solid var(--border); font-weight: 500;
}
.mobile-menu a:hover { color: var(--t1); }

/* ── BUTTONS ────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--r); font-family: var(--body);
  font-weight: 600; font-size: 0.95rem; cursor: pointer; transition: all 0.2s;
  border: 1px solid transparent; text-decoration: none;
}
.btn-primary { background: var(--amber); color: #000; }
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--t1); border-color: var(--border-h); }
.btn-secondary:hover { background: var(--hover-tint); border-color: var(--border-h); }
.btn-ghost { background: transparent; color: var(--t2); border-color: transparent; }
.btn-ghost:hover { color: var(--t1); background: var(--hover-tint); }
.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 15px 32px; font-size: 1rem; }

/* ── LABELS / BADGES ────────────────────── */
.label {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--amber); margin-bottom: 14px; font-family: var(--body);
}
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--amber-d); border: 1px solid rgba(232,152,12,0.25);
  border-radius: 100px; padding: 5px 12px;
  font-size: 0.78rem; font-weight: 600; color: var(--amber); font-family: var(--body);
}
.badge-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--amber); }
.badge-dot.pulse { animation: pulse 2s ease infinite; }
.badge-blue {
  background: var(--blue-d); border-color: rgba(79,126,255,0.25); color: var(--blue);
}
.badge-green {
  background: var(--green-d); border-color: rgba(34,197,94,0.25); color: var(--green);
}
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.3} }

/* ── CARDS ──────────────────────────────── */
.card {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: var(--r2); padding: 28px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}
.card:hover { border-color: var(--border-h); transform: translateY(-2px); box-shadow: var(--shadow); }
.card-amber { border-color: rgba(232,152,12,0.2); background: linear-gradient(135deg, rgba(232,152,12,0.05), var(--bg2)); }

/* ── SECTION UTILITIES ──────────────────── */
.section-dark { background: var(--bg2); }
.section-darker { background: var(--bg3); }
.section-head { margin-bottom: 12px; }
.section-sub { color: var(--t2); font-size: 1.05rem; max-width: 600px; margin-bottom: 56px; line-height: 1.75; }

/* ── DIVIDER ────────────────────────────── */
.divider { height: 1px; background: var(--border); margin: 40px 0; }
.divider-amber { background: linear-gradient(90deg, transparent, rgba(232,152,12,0.3), transparent); }

/* ── PROGRESS BAR (reading) ─────────────── */
#reading-progress {
  position: fixed; top: 66px; left: 0; right: 0; height: 2px; z-index: 199;
  background: var(--bg2);
}
#reading-progress-bar {
  height: 100%; background: linear-gradient(90deg, var(--amber), var(--blue));
  width: 0%; transition: width 0.1s linear;
}

/* ── TOC ────────────────────────────────── */
.toc {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--r2); padding: 24px 28px;
  margin-bottom: 40px;
}
.toc-title { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--t3); margin-bottom: 14px; }
.toc ol { padding-left: 18px; display: flex; flex-direction: column; gap: 8px; }
.toc a { font-size: 0.9rem; color: var(--t2); transition: color 0.2s; }
.toc a:hover { color: var(--amber); }

/* ── BLOG PROSE ─────────────────────────── */
.prose { max-width: 720px; }
.prose h2 { font-size: 1.7rem; margin: 48px 0 16px; padding-top: 8px; border-top: 1px solid var(--border); }
.prose h3 { font-size: 1.2rem; margin: 32px 0 12px; color: var(--t1); }
.prose p { margin-bottom: 20px; font-size: 1.0625rem; line-height: 1.85; }
.prose ul, .prose ol { padding-left: 24px; margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.prose li { color: var(--t2); font-size: 1.0625rem; line-height: 1.75; }
.prose blockquote {
  border-left: 3px solid var(--amber); padding: 16px 24px;
  background: var(--amber-d2); border-radius: 0 var(--r) var(--r) 0;
  margin: 28px 0; color: var(--t1); font-style: italic; font-size: 1.05rem;
}
.prose pre { margin: 28px 0; }
.prose .callout {
  background: var(--blue-d); border: 1px solid rgba(79,126,255,0.2);
  border-radius: var(--r2); padding: 20px 24px; margin: 28px 0;
}
.prose .callout-amber {
  background: var(--amber-d2); border-color: rgba(232,152,12,0.2);
}
.prose .callout strong { display: block; margin-bottom: 6px; }

/* ── FOOTER ─────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding: 64px 0 40px;
  background: var(--bg2);
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { font-size: 0.9rem; margin: 12px 0 20px; max-width: 280px; line-height: 1.7; }
.footer-col h5 { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--t3); margin-bottom: 16px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 0.875rem; color: var(--t3); transition: color 0.2s; }
.footer-col a:hover { color: var(--t2); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
  padding-top: 28px; border-top: 1px solid var(--border);
}
.footer-copy { font-size: 0.82rem; color: var(--t3); }
.footer-legal { display: flex; gap: 20px; }
.footer-legal a { font-size: 0.82rem; color: var(--t3); transition: color 0.2s; }
.footer-legal a:hover { color: var(--t2); }

/* ── REVEAL ANIMATIONS ──────────────────── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.visible { opacity: 1; transform: none; }
.reveal-left { opacity: 0; transform: translateX(-20px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal-left.visible { opacity: 1; transform: none; }
.reveal-right { opacity: 0; transform: translateX(20px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal-right.visible { opacity: 1; transform: none; }

/* ── HERO SHARED ────────────────────────── */
.hero-glow {
  position: absolute; pointer-events: none;
  background: radial-gradient(ellipse at 50% 0%, rgba(232,152,12,0.1) 0%, rgba(79,126,255,0.05) 40%, transparent 70%);
}
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 0%, transparent 65%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, black 0%, transparent 65%);
}

/* ── STAT BLOCKS ────────────────────────── */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--r2); overflow: hidden; }
.stat-block { background: var(--bg2); padding: 28px 24px; text-align: center; }
.stat-num { font-family: var(--display); font-size: 2rem; font-weight: 800; color: var(--amber); letter-spacing: -0.03em; }
.stat-label { font-size: 0.82rem; color: var(--t3); margin-top: 4px; }

/* ── TABLE ──────────────────────────────── */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r2); }
table { width: 100%; border-collapse: collapse; }
thead { background: var(--bg3); }
th { padding: 12px 20px; text-align: left; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--t3); border-bottom: 1px solid var(--border); }
td { padding: 14px 20px; font-size: 0.9rem; color: var(--t2); border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--hover-tint); }
.td-check { color: var(--green); font-size: 1rem; }
.td-cross { color: var(--t3); }
.td-amber { color: var(--amber); font-weight: 600; }

/* ── RESPONSIVE ─────────────────────────── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  section { padding: 72px 0; }
  .nav-links { display: none; }
  .hamburger { display: block; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}
@media (max-width: 480px) {
  .wrap, .wrap-narrow { padding: 0 20px; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.5rem; }
}

/* ═══════════════════════════════════════════════════
   MOBILE OVERRIDES — iPhone 14 and all small screens
   ═══════════════════════════════════════════════════ */

/* Prevent any horizontal overflow globally */
html, body { overflow-x: hidden; }
* { min-width: 0; }

/* ── NAV — hide CTA button on small screens, keep hamburger ── */
@media (max-width: 768px) {
  .nav-right .btn { display: none; }
  .hamburger { display: flex; }
  .nav-links { display: none; }
}

/* ── STATS — 2 cols on tablet, 1 col on phone ── */
@media (max-width: 480px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .stat-num { font-size: 1.6rem; }
}

/* ── HERO — stack actions, shrink trust pills ── */
@media (max-width: 480px) {
  .hero-actions { flex-direction: column; gap: 10px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-trust { gap: 14px; }
  .trust-item { font-size: 0.8rem; }
}

/* ── GUARANTEE — hide huge decorative quote, reduce padding ── */
@media (max-width: 600px) {
  .guarantee { padding: 28px 22px; }
  .guarantee::after { display: none; }
  .g-quote { font-size: 1.15rem; }
  .g-pills { gap: 6px; }
  .g-pill { font-size: 0.74rem; padding: 5px 10px; }
}

/* ── SECTIONS — tighter vertical padding on phone ── */
@media (max-width: 480px) {
  section { padding: 56px 0; }
  .wrap, .wrap-narrow { padding: 0 18px; }
  h1 { font-size: 1.65rem; }
  h2 { font-size: 1.35rem; }
}

/* ── CARDS — full-width on phone ── */
@media (max-width: 480px) {
  .card { padding: 22px 18px; }
}

/* ── CTA BAND — reduce padding on phone ── */
@media (max-width: 480px) {
  .cta-band { padding: 32px 20px !important; }
  .cta-actions { flex-direction: column; gap: 10px; }
  .cta-actions .btn { width: 100%; justify-content: center; }
}

/* ── FOOTER — single column on phone ── */
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 10px; }
  footer { padding: 48px 0 32px; }
}

/* ── TABLE — always scrollable ── */
.table-wrap { -webkit-overflow-scrolling: touch; }
@media (max-width: 600px) {
  td, th { padding: 10px 14px; font-size: 0.82rem; }
}

/* ── BADGE / LABEL — prevent overflow ── */
@media (max-width: 390px) {
  .badge { font-size: 0.72rem; padding: 4px 10px; }
  .label { font-size: 0.68rem; }
}

/* ── IPHONE SAFE AREA (notch + home indicator) ── */
nav {
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}
footer {
  padding-bottom: calc(40px + env(safe-area-inset-bottom));
}
.mobile-menu {
  padding-left: max(28px, env(safe-area-inset-left));
  padding-right: max(28px, env(safe-area-inset-right));
}

/* ── TOUCH TARGETS — min 44px for iOS HIG ── */
.nav-links a { min-height: 44px; display: inline-flex; align-items: center; }
.hamburger { min-width: 44px; min-height: 44px; align-items: center; justify-content: center; }
.mobile-menu a { min-height: 44px; display: flex; align-items: center; }
.btn { min-height: 44px; }
.faq-q { min-height: 52px; }

/* ── THEME TOGGLE ───────────────────────── */
.theme-toggle {
  width: 36px; height: 36px; border-radius: 8px;
  background: var(--bg3); border: 1px solid var(--border);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background 0.2s, border-color 0.2s;
  flex-shrink: 0; color: var(--t2);
}
.theme-toggle:hover { background: var(--bg4); border-color: var(--border-h); color: var(--amber); }
.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }