/* REQ-082 — Landing styles (extracted from Designer prototype ENT-009/010).
 * Tokens MIRROR strict — NO redefine brand tokens here.
 * Brand navy + amber live ONLY inside the SVG icon V2 + hero art.
 * HVN-1 absorption + HVN-2 defensive applied per REQ-082 §5.6/§5.7.
 */

@import './tokens.css';

/* HQ-1 fix per HoG GO 2026-04-26 ENT-009 §5.1:
 * Tile navy of V2 icon (#0f172a) coincides with --color-bg-base dark (#0f172a)
 * → tile "disappears" in dark mode losing brand envelope.
 * Override SVG element fill to slate-800 preserves tile as brand envelope
 * cross-mode parity with extension toolbar (D#1 REQ-040 tripartita 2026-04-22).
 * NOT a token redefinition (§4.1 preserved) — direct SVG element override.
 */
@media (prefers-color-scheme: dark) {
  .brand__icon rect,
  .hero__icon rect { fill: #1e293b; }
}

/* ============================================================
   Reset + base — page-specific layout (NOT new tokens)
   ============================================================ */
* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-family-base);
  background: var(--color-bg-base);
  color: var(--color-text-primary);
  line-height: var(--line-height-base);
  min-height: 100vh;
}

/* CJK font fallback hint when locale switches to JA/KO/ZH */
html[data-cjk="true"] body {
  font-family: var(--font-family-base), "Noto Sans CJK JP", "Noto Sans CJK KR", "Noto Sans CJK SC", sans-serif;
}

a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--color-focus-ring); outline-offset: 2px; border-radius: var(--radius-sm); }
button:focus-visible { outline: 2px solid var(--color-focus-ring); outline-offset: 2px; }

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

/* Page container constraint */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* ============================================================
   SITE HEADER (sticky)
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg-base) 92%, transparent);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border-default);
}
.site-header__inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  padding: var(--space-3) var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  font-size: var(--font-size-md);
}
.brand__icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}
.site-nav {
  display: flex;
  gap: var(--space-5);
  margin-left: auto;
  align-items: center;
}
.site-nav a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  transition: color 0.15s ease;
}
.site-nav a:hover { color: var(--color-text-primary); }

.locale-switcher {
  position: relative;
}
.locale-switcher > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  user-select: none;
}
.locale-switcher > summary::-webkit-details-marker { display: none; }
.locale-switcher > summary::after {
  content: "▾";
  font-size: 0.75em;
  color: var(--color-text-muted);
}
.locale-switcher > summary:hover { color: var(--color-text-primary); background: var(--color-bg-overlay); }
.locale-switcher__panel {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  min-width: 180px;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: var(--space-1);
  list-style: none;
  max-height: 70vh;
  overflow-y: auto;
}
.locale-switcher__panel li > a {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  transition: background 0.12s ease;
  cursor: pointer;
}
.locale-switcher__panel li > a:hover { background: var(--color-bg-muted); color: var(--color-text-primary); }
.locale-switcher__panel li > a[aria-current="true"] {
  color: var(--color-action-primary);
  font-weight: var(--font-weight-semibold);
}

/* ============================================================
   BUTTONS / CTAs (token-driven)
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: background 0.15s ease, transform 0.06s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--color-action-primary);
  color: var(--color-action-primary-text);
}
.btn--primary:hover { background: var(--color-action-primary-hover); }
.btn--primary:active { background: var(--color-action-primary-active); }
.btn--secondary {
  background: var(--color-bg-surface);
  color: var(--color-text-primary);
  border-color: var(--color-border-strong);
}
.btn--secondary:hover { background: var(--color-bg-muted); }
.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-lg);
}
.site-header .btn { padding: var(--space-2) var(--space-4); font-size: var(--font-size-base); }

/* REQ-082 §5.7 — HVN-2 applied (defense profundizada anti layout shift edge cases).
   Designer marked optional pro tip — applied for free + defense.
   Desktop: ~58px (3.625rem). Mobile <=720px: ~52px (3.25rem). */
.btn--primary.btn--lg {
  min-height: 3.625rem;
}
@media (max-width: 720px) {
  .btn--primary.btn--lg {
    min-height: 3.25rem;
  }
}

/* ============================================================
   HERO
   Layout: 2 columns desktop (text + product preview), stacked mobile.
   ============================================================ */
.hero {
  padding: clamp(var(--space-8), 6vw, calc(var(--space-10) * 2)) 0;
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(var(--space-6), 4vw, var(--space-10));
  align-items: center;
}
@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; gap: var(--space-8); }
}

.hero__icon-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}
.hero__icon {
  width: clamp(96px, 11vw, 140px);
  height: clamp(96px, 11vw, 140px);
  flex-shrink: 0;
  filter: drop-shadow(0 6px 18px rgba(15, 23, 42, 0.12));
}
@media (prefers-color-scheme: dark) {
  .hero__icon { filter: drop-shadow(0 6px 18px rgba(0,0,0,0.4)); }
}

.hero__h1 {
  font-size: clamp(2.25rem, 5vw, 4.5rem);
  line-height: var(--line-height-tight);
  letter-spacing: -0.02em;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-5);
}
.hero__h2 {
  font-size: clamp(1.0625rem, 1.6vw, 1.375rem);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  max-width: 60ch;
  margin-bottom: var(--space-8);
}

.hero__cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.trust-chip {
  display: inline-flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-3);
  align-items: baseline;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--color-bg-muted);
  color: var(--color-text-tertiary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  max-width: 100%;
}
.trust-chip__sep {
  color: var(--color-border-strong);
  user-select: none;
}
/* CJK trust chip — extra padding for visual balance when text is shorter */
html[data-cjk="true"] .trust-chip {
  padding-inline: var(--space-5);
  letter-spacing: 0.02em;
}
/* DACH/FR — trust chip allows wrapping at separator boundaries (longer strings). */
html[lang="de"] .trust-chip,
html[lang="fr"] .trust-chip { font-size: var(--font-size-base); }

/* ============================================================
   HERO PRODUCT PREVIEW (simulated side panel inline — REQ-082 deploy v1).
   REQ-084 ARC menor sustituye con screenshot real ext 0.9.5 post-coordinación Leo.
   ============================================================ */
.hero__preview {
  justify-self: center;
  width: min(100%, 380px);
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md), 0 24px 60px rgba(15, 23, 42, 0.08);
  overflow: hidden;
  transform: rotate(-1deg);
}
@media (prefers-color-scheme: dark) {
  .hero__preview { box-shadow: var(--shadow-md), 0 24px 60px rgba(0,0,0,0.4); }
}
.preview__chrome {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-muted);
  border-bottom: 1px solid var(--color-border-default);
}
.preview__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border-strong);
}
.preview__title {
  margin-left: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.preview__body {
  padding: var(--space-4);
}
.preview__body .panel-header h1 {
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}
.preview__body .risk-card {
  background: var(--color-bg-base);
  border: 1px solid var(--color-border-default);
  border-left: 4px solid var(--color-risk-high);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
}
.preview__body .risk-label {
  display: block;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-1);
}
.preview__body .risk-score-display {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}
.preview__body .risk-number {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  line-height: 1;
  color: var(--color-risk-high);
}
.preview__body .risk-max {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
}
.preview__body .risk-level-badge {
  display: inline-block;
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  background: var(--color-risk-high-bg);
  color: var(--color-risk-high);
  border: 1px solid var(--color-risk-high-border);
}
.preview__body .doc-meta {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.preview__category {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0;
  border-top: 1px solid var(--color-border-default);
  font-size: var(--font-size-base);
}
.preview__category .cat-name {
  color: var(--color-text-secondary);
  display: flex;
  gap: var(--space-2);
  align-items: center;
}
.preview__category .cat-glyph {
  color: var(--color-text-muted);
  font-size: var(--font-size-md);
}
.preview__category .cat-count {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  background: var(--color-bg-muted);
  padding: 2px var(--space-2);
  border-radius: var(--radius-full);
}
.preview__footer {
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--color-border-default);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  background: var(--color-bg-muted);
  line-height: var(--line-height-base);
}

/* ============================================================
   SECTION SCAFFOLD
   ============================================================ */
section.section {
  padding: clamp(var(--space-10), 8vw, calc(var(--space-10) * 2.5)) 0;
}
section.section--alt {
  background: var(--color-bg-muted);
  border-top: 1px solid var(--color-border-default);
  border-bottom: 1px solid var(--color-border-default);
}
.section__head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-10);
}
.section__h2 {
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  line-height: var(--line-height-tight);
  letter-spacing: -0.01em;
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
}
.section__sub {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ============================================================
   HOW IT WORKS — 3-step grid
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 800px) { .steps { grid-template-columns: 1fr; } }

.step {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.step:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: var(--color-bg-muted);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-4);
}
.step__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  color: var(--color-action-primary);
}
.step__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}
.step__body {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.ai-disclaimer-inline {
  max-width: 720px;
  margin: var(--space-8) auto 0;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  text-align: center;
  border-top: 1px dashed var(--color-border-default);
  padding-top: var(--space-5);
}
.ai-disclaimer-inline a {
  color: var(--color-action-primary);
  text-decoration: underline;
}
.ai-disclaimer-inline a:hover { color: var(--color-action-primary-hover); }

/* ============================================================
   WHAT IT CATCHES — 3×3 category grid
   ============================================================ */
.categories {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
@media (max-width: 900px) { .categories { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .categories { grid-template-columns: 1fr; } }

.category {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.category:hover { border-color: var(--color-border-strong); transform: translateY(-1px); }
.category__glyph {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-bg-muted);
  color: var(--color-text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: var(--font-weight-medium);
  line-height: 1;
}
.category__body { min-width: 0; }
.category__label {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}
.category__desc {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ============================================================
   PRICING — 2 cards (Free / Pro highlight)
   ============================================================ */
.pricing-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  max-width: 880px;
  margin: 0 auto;
}
@media (max-width: 720px) { .pricing-cards { grid-template-columns: 1fr; max-width: 480px; } }

.price-card {
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-default);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  box-shadow: var(--shadow-sm);
}
.price-card--featured {
  border-color: var(--color-action-primary);
  box-shadow: var(--shadow-md), 0 0 0 1px var(--color-action-primary);
  position: relative;
}
.price-card--featured::before {
  content: "★";
  position: absolute;
  top: var(--space-3);
  right: var(--space-4);
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-pro-bg);
  color: var(--color-pro-text);
  font-size: var(--font-size-base);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.price-card__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}
.price-card__price {
  font-size: clamp(1.875rem, 3vw, 2.25rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
  line-height: var(--line-height-tight);
  letter-spacing: -0.01em;
}
.price-card__quota {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  font-weight: var(--font-weight-medium);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border-default);
}
.price-card__features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.price-card__features li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}
.price-card__features li::before {
  content: "✓";
  color: var(--color-risk-low);
  font-weight: var(--font-weight-bold);
  flex-shrink: 0;
  margin-top: 2px;
}
@media (prefers-color-scheme: dark) {
  .price-card__features li::before { color: var(--color-risk-low); }
}

.pricing-trust {
  max-width: 720px;
  margin: var(--space-8) auto 0;
  text-align: center;
  font-size: var(--font-size-base);
  color: var(--color-text-tertiary);
}

/* REQ-082 §5.6 — HVN-1 absorption (mobile <460px responsive fix per Designer recommendation REQ-060 §7.1.a).
   Reduces price-card padding + heading size to prevent horizontal overflow on narrow viewports. */
@media (max-width: 460px) {
  .price-card {
    padding-inline: var(--space-3);
  }
  .price-card__price {
    font-size: clamp(1.5rem, 5vw, 2rem);
  }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  padding: var(--space-10) 0 var(--space-6);
  background: var(--color-bg-muted);
  border-top: 1px solid var(--color-border-default);
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .footer-grid { grid-template-columns: 1fr; } }

.footer-col h4 {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  font-weight: var(--font-weight-semibold);
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-col a {
  color: var(--color-text-secondary);
  transition: color 0.15s ease;
}
.footer-col a:hover { color: var(--color-text-primary); }

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer-brand .brand { font-size: var(--font-size-md); }
.footer-brand p {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-base);
  line-height: var(--line-height-relaxed);
}
.footer-copyright {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.ai-compliance {
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-default);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  text-align: center;
}

/* ============================================================
   Skip link (a11y)
   ============================================================ */
.skip-link {
  position: absolute;
  left: -9999px;
  top: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-action-primary);
  color: var(--color-action-primary-text);
  border-radius: var(--radius-md);
  z-index: 100;
}
.skip-link:focus { left: var(--space-2); }

/* ============================================================
   REQ-084 hot-fix — HTML5 [hidden] attribute display override
   ============================================================
   Without this rule, .btn { display: inline-flex } overrides browser
   default [hidden] { display: none } due to identical specificity (later
   rule wins). Symptom pre-fix: dual-CTA Card Pro renders BOTH buttons
   simultaneously even though the with-ext button has the hidden attribute.
   Fix: !important to force display:none for any element with hidden attr.
*/
[hidden] {
  display: none !important;
}