/* ============================================================
   RYX — index.css
   Page-specific styles — imports styles.css as global base
   ============================================================ */

/* ──────────────────────────────────────────────────────────
   FLOATING NAVBAR
   ────────────────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  inset-block-start: var(--space-4);
  inset-inline: var(--space-6);
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding: var(--space-3) var(--space-5);
  background: color-mix(in oklch, var(--bg) 82%, transparent);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: var(--border-default);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  transition:
    background var(--duration-slow) var(--ease-standard),
    box-shadow var(--duration-slow) var(--ease-standard);
}

.site-nav.scrolled {
  background: color-mix(in oklch, var(--bg) 94%, transparent);
  box-shadow: var(--shadow-lg);
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--text-heading);
  text-decoration: none;
  letter-spacing: -.02em;
  line-height: 1;
  flex-shrink: 0;
  z-index: 301; /* Keep above mobile menu */
  position: relative;
}

.nav__logo em {
  font-style: italic;
  color: var(--accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  list-style: none;
}

.nav__links a {
  font-family: var(--font-label);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--duration-fast);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  inset-block-end: -2px;
  inset-inline-start: 0;
  inline-size: 0;
  block-size: 1px;
  background: var(--accent);
  transition: inline-size var(--duration-normal) var(--ease-out-expo);
}

.nav__links a:hover {
  color: var(--accent);
}

.nav__links a:hover::after {
  inline-size: 100%;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  z-index: 301; /* Keep close button above open mobile menu overlay */
  position: relative;
}

.nav__hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-heading);
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--space-2);
  line-height: 1;
}

/* ──────────────────────────────────────────────────────────
   HERO
   ────────────────────────────────────────────────────────── */
.hero {
  padding-block-start: clamp(7rem, 15vw, 11rem);
  padding-block-end: var(--section-pad-y);
  padding-inline: var(--section-pad-x);
  max-inline-size: var(--content-max);
  margin-inline: auto;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-block-end: var(--space-6);
}

.hero__eyebrow-dot {
  display: inline-block;
  inline-size: 6px;
  block-size: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2.2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .45; transform: scale(.7); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 400;
  line-height: 1.0;
  letter-spacing: -.01em;
  color: var(--text-heading);
  text-wrap: balance;
  margin-block-end: var(--space-6);
}

.hero__title em {
  font-style: italic;
  color: var(--accent);
}

.hero__sub {
  font-family: var(--font-body);
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-muted);
  max-inline-size: 54ch;
  margin-block-end: var(--space-10);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-block-end: var(--space-8);
}

.hero__version {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--text-muted);
  background: var(--bg-sunken);
  border: var(--border-default);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  margin-block-end: var(--space-10);
  flex-wrap: wrap;
}

.hero__version strong {
  color: var(--accent);
  font-weight: 400;
}

.hero__metrics {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-10);
  padding-block-start: var(--space-8);
  border-block-start: var(--border-muted);
}

.metric {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.metric__value {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 400;
  line-height: 1;
  color: var(--text-heading);
}

.metric__label {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ──────────────────────────────────────────────────────────
   SYNTAX SHOWCASE
   ────────────────────────────────────────────────────────── */
.syntax-section {
  padding-block: var(--section-pad-y);
  border-block: var(--border-default);
  background: var(--bg-sunken);
}

.syntax-section .inner {
  max-inline-size: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--section-pad-x);
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: clamp(var(--space-10), 7vw, var(--space-24));
  align-items: start;
}

.syntax__copy {
  position: sticky;
  inset-block-start: calc(var(--space-20) + var(--space-4));
}

.syntax__copy h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.15;
  color: var(--text-heading);
  margin-block: var(--space-4) var(--space-5);
}

.syntax__copy p {
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text);
  margin-block-end: var(--space-6);
}

.syntax__code {
  min-inline-size: 0;
}

.syntax__tabs {
  display: flex;
  gap: var(--space-1);
  padding: var(--space-1);
  background: var(--bg);
  border: var(--border-default);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
  border-block-end: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.syntax__tabs::-webkit-scrollbar { display: none; }

.tab-btn {
  font-family: var(--font-label);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  border: none;
  background: none;
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
  transition: background var(--duration-fast), color var(--duration-fast);
}

.tab-btn:hover { color: var(--text-heading); }

.tab-btn.active {
  background: var(--accent);
  color: var(--color-paper-0);
}

.syntax__panel { display: none; }
.syntax__panel.active { display: block; }

.syntax__block {
  background: var(--color-code-bg);
  border: 1px solid oklch(22% .016 64);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  overflow: hidden;
}

.syntax__block pre {
  margin: 0;
  border-radius: 0;
  border: none;
  font-size: var(--text-sm);
  padding: var(--space-6);
  overflow-x: auto;
  line-height: 1.6;
}

/* Syntax tokens */
.t-comment  { color: oklch(44% .010 65); font-style: italic; }
.t-keyword  { color: oklch(72% .20 18); }
.t-type     { color: oklch(76% .16 32); }
.t-string   { color: oklch(74% .16 145); }
.t-number   { color: oklch(78% .16 200); }
.t-fn       { color: oklch(72% .14 220); }
.t-var      { color: oklch(86% .010 78); }
.t-op       { color: oklch(65% .08 60); }

/* ──────────────────────────────────────────────────────────
   HIGHLIGHTS / FEATURES
   ────────────────────────────────────────────────────────── */
.highlights-section {
  padding-block: var(--section-pad-y);
  padding-inline: var(--section-pad-x);
  max-inline-size: var(--content-max);
  margin-inline: auto;
}

.section-header {
  margin-block-end: clamp(var(--space-10), 6vw, var(--space-16));
  max-inline-size: 52ch;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.15;
  color: var(--text-heading);
  margin-block: var(--space-3) var(--space-4);
}

.section-header p {
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-muted);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.highlight-card {
  padding: var(--space-6);
  background: var(--bg-raised);
  border: var(--border-default);
  border-radius: var(--radius-lg);
  transition: border-color var(--duration-normal), box-shadow var(--duration-normal), transform var(--duration-normal) var(--ease-standard);
}

.highlight-card:hover {
  border-color: color-mix(in oklch, var(--accent) 35%, var(--border));
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.highlight-card.card--wide { grid-column: span 2; }

.highlight-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2.4rem;
  block-size: 2.4rem;
  background: var(--color-accent-bg);
  border-radius: var(--radius-md);
  color: var(--accent);
  font-size: .95rem;
  margin-block-end: var(--space-5);
  border: 1px solid color-mix(in oklch, var(--accent) 20%, transparent);
}

.highlight-card__title {
  font-family: var(--font-body);
  font-size: var(--text-md);
  font-weight: 600;
  color: var(--text-heading);
  line-height: 1.3;
  margin-block-end: var(--space-3);
}

.highlight-card__body {
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: 1.78;
  color: var(--text-muted);
}

.compare-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-block-start: var(--space-5);
}

.compare-pill {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  line-height: 1;
}

.compare-pill.pill--them {
  background: var(--bg-sunken);
  color: var(--text-muted);
  border-color: var(--border);
  text-decoration: line-through;
  text-decoration-color: color-mix(in oklch, var(--text-muted) 40%, transparent);
}

.compare-pill.pill--razen {
  background: var(--color-accent-bg);
  color: var(--accent-dim);
  border-color: color-mix(in oklch, var(--accent) 25%, transparent);
}

/* ──────────────────────────────────────────────────────────
   BUILD MODES (dark section)
   ────────────────────────────────────────────────────────── */
.modes-section {
  padding-block: var(--section-pad-y);
  border-block: var(--border-default);
  background: var(--color-code-bg);
}

.modes-section .inner {
  max-inline-size: var(--content-max);
  margin-inline: auto;
  padding-inline: var(--section-pad-x);
}

.modes-section .section-header h2 { color: oklch(93% .010 80); }
.modes-section .section-header p { color: oklch(56% .012 70); }
.modes-section .eyebrow { color: var(--accent); }

.modes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin-block-start: var(--space-8);
}

.mode-card {
  padding: var(--space-6) var(--space-8);
  border-radius: var(--radius-lg);
  border: 1px solid oklch(22% .016 64);
  background: oklch(14% .015 60);
  transition: border-color var(--duration-normal);
}

.mode-card:hover {
  border-color: color-mix(in oklch, var(--accent) 35%, oklch(22% .016 64));
}

.mode-card__cmd {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 400;
  color: var(--accent);
  margin-block-end: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.mode-card__cmd-prefix { color: oklch(38% .010 65); }

.mode-card__name {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: oklch(56% .012 70);
  margin-block-end: var(--space-2);
}

.mode-card__desc {
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: 1.78;
  color: oklch(64% .012 70);
}

.mode-card__compiler {
  margin-block-start: var(--space-5);
  padding-block-start: var(--space-4);
  border-block-start: 1px solid oklch(22% .016 64);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: oklch(44% .010 65);
}

.mode-card__compiler strong {
  color: oklch(70% .010 75);
  font-weight: 400;
}

/* ──────────────────────────────────────────────────────────
   CTA STRIP
   ────────────────────────────────────────────────────────── */
.cta-section {
  padding-block: var(--section-pad-y);
  padding-inline: var(--section-pad-x);
  max-inline-size: var(--content-max);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-12);
  align-items: center;
}

.cta__copy h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 400;
  line-height: 1.15;
  color: var(--text-heading);
  margin-block-end: var(--space-3);
}

.cta__copy h2 em { font-style: italic; color: var(--accent); }

.cta__copy p {
  font-size: var(--text-sm);
  font-weight: 400;
  line-height: 1.78;
  color: var(--text-muted);
  max-inline-size: 50ch;
}

.cta__actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: flex-start;
  flex-shrink: 0;
}

/* ──────────────────────────────────────────────────────────
   FOOTER
   ────────────────────────────────────────────────────────── */
.site-footer {
  border-block-start: var(--border-default);
  background: var(--bg-sunken);
  padding-block: var(--space-10);
  padding-inline: var(--section-pad-x);
}

.footer__inner {
  max-inline-size: var(--content-max);
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-6);
}

.footer__brand {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--text-heading);
  text-decoration: none;
}

.footer__brand em { font-style: italic; color: var(--accent); }

.footer__links {
  display: flex;
  gap: var(--space-6);
  align-items: center;
}

.footer__links a {
  font-family: var(--font-label);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--duration-fast);
}

.footer__links a:hover { color: var(--accent); }

.footer__copy {
  font-size: var(--text-xs);
  font-weight: 400;
  color: var(--text-disabled);
  inline-size: 100%;
  padding-block-start: var(--space-5);
  border-block-start: var(--border-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
  line-height: 1.6;
}

.footer__copy a { color: var(--accent); text-decoration: none; }

/* ──────────────────────────────────────────────────────────
   SCROLL REVEAL ANIMATIONS
   ────────────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  translate: 0 var(--space-5);
  transition: opacity var(--duration-slow) var(--ease-out-expo), translate var(--duration-slow) var(--ease-out-expo);
}

.reveal.visible { opacity: 1; translate: 0 0; }

.reveal-delay-1 { transition-delay: 80ms; }
.reveal-delay-2 { transition-delay: 160ms; }
.reveal-delay-3 { transition-delay: 240ms; }
.reveal-delay-4 { transition-delay: 320ms; }

/* ──────────────────────────────────────────────────────────
   RESPONSIVE / MEDIA QUERIES
   ────────────────────────────────────────────────────────── */

/* Hide mobile-only elements by default */
.mobile-only { display: none; }

@media (max-width: 1024px) {
  .highlights-grid { grid-template-columns: 1fr 1fr; }
  .highlight-card.card--wide { grid-column: span 2; }
  .syntax-section .inner { grid-template-columns: 1fr 1.2fr; gap: var(--space-10); }
}

@media (max-width: 860px) {
  .syntax-section .inner { grid-template-columns: 1fr; }
  .syntax__copy { position: static; }
  .cta-section { grid-template-columns: 1fr; }
  .cta__actions { flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 680px) {
  .site-nav {
    inset-inline: var(--space-3);
    inset-block-start: var(--space-3);
  }

  /* 1. BREAK THE CONTAINING BLOCK CONSTRAINT */
  /* This prevents the parent navbar from trapping the full-screen menu */
  .site-nav:has(.nav__links.open) {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    background: transparent !important;
    box-shadow: none !important;
    border-color: transparent !important;
  }

  /* 2. HIDE THE DESKTOP BUTTONS */
  /* Targets the buttons dynamically even if you forgot the HTML class */
  .nav__actions .btn {
    display: none !important;
  }

  /* 3. SHOW THE MOBILE MENU GITHUB LINK */
  .mobile-only {
    display: block;
    margin-block-start: var(--space-6);
    padding-block-start: var(--space-6);
    border-block-start: 1px solid var(--border-muted);
    inline-size: 100%;
  }

  .mobile-only a {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--text-heading) !important;
  }

  /* 4. FLAWLESS FULL-SCREEN OVERLAY MENU */
  .nav__links {
    display: none;
  }

  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0;
    /* Solid fallback color for older Android browsers */
    background: #f6f5f4; 
    /* Modern color block */
    background: var(--bg);
    z-index: 300;
    padding: clamp(6rem, 20vh, 8rem) var(--space-6) var(--space-6);
    gap: var(--space-6);
    align-items: flex-start;
    animation: fade-in 250ms var(--ease-out-expo) both;
  }

  .nav__links.open a {
    font-size: 1.25rem;
    letter-spacing: .05em;
  }

  .nav__hamburger { display: flex; z-index: 301; }

  /* 5. LOCK SCROLLING */
  body:has(.nav__links.open) { overflow: hidden; }

  /* Layout adjustments */
  .highlights-grid { grid-template-columns: 1fr; }
  .highlight-card.card--wide { grid-column: span 1; }
  .modes-grid { grid-template-columns: 1fr; }
  .hero__metrics { gap: var(--space-6); }
  .footer__inner { flex-direction: column; align-items: flex-start; }
  .cta__actions { flex-direction: column; inline-size: 100%; }
  .cta__actions .btn { inline-size: 100%; justify-content: center; }
  .hero__actions { flex-direction: column; align-items: stretch; }
  .hero__actions .btn { justify-content: center; }
  .mode-card { padding: var(--space-5); }
}