/* XNK Player — 90s Fashion Edition
   Palette: #5eafef (Sky Blue), #508ec0 (Denim), #ff001a (Racing Red), #4e4646 (Charcoal Slate), #ffdb76 (Soft Gold)
   Typography matched to jefflunt.com */

:root {
  color-scheme: dark;

  /* 90s Fashion Color Palette */
  --c-sky: #5eafef;
  --c-sky-hover: #83c3f8;
  --c-sky-glow: rgba(94, 175, 239, 0.4);
  --c-sky-tint: rgba(94, 175, 239, 0.12);
  --c-sky-border: rgba(94, 175, 239, 0.35);

  --c-denim: #508ec0;
  --c-denim-dark: #37658d;
  --c-denim-tint: rgba(80, 142, 192, 0.15);

  --c-red: #ff001a;
  --c-red-glow: rgba(255, 0, 26, 0.5);
  --c-red-tint: rgba(255, 0, 26, 0.12);

  --c-charcoal: #4e4646;
  --c-gold: #ffdb76;
  --c-gold-glow: rgba(255, 219, 118, 0.45);
  --c-gold-tint: rgba(255, 219, 118, 0.12);

  /* Dark Theme Surfaces with 90s Charcoal/Denim Undertones */
  --bg: #0c0e13;
  --surface: #141720;
  --surface-2: #1b202c;
  --surface-elevated: #232a3a;
  --surface-recessed: #080a0e;

  --border: #252d3d;
  --border-subtle: #191e29;
  --border-highlight: #3b4760;

  /* Text Foregrounds */
  --text: #f3f5f9;
  --text-dim: #c5ccdc;
  --muted: #8b95a8;
  --muted-dark: #586173;

  /* Brand Theme mappings */
  --accent: var(--c-sky);
  --accent-hover: var(--c-sky-hover);
  --accent-tint: var(--c-sky-tint);
  --accent-border: var(--c-sky-border);

  --spark: var(--c-red);
  --spark-tint: var(--c-red-tint);

  /* Terminal / Code Deck */
  --term-bg: #0a0b10;
  --term-header: #12151f;
  --term-border: #222938;
  --term-text: #e6edf7;
  --term-muted: #798396;
  --term-green: var(--c-sky);
  --term-red: var(--c-red);
  --term-purple: #c099ff;
  --term-cyan: var(--c-sky);
  --term-yellow: var(--c-gold);

  /* Injected into <xnk-player> shadow DOM */
  --player-bg: var(--surface);
  --player-surface: var(--surface-2);
  --player-surface-elevated: var(--surface-elevated);
  --player-border: var(--border);
  --player-text: var(--text);
  --player-muted: var(--muted);
  --player-accent: var(--c-sky);
  --player-accent-hover: var(--c-sky-hover);
  --player-accent-tint: var(--c-sky-tint);
  --player-accent-border: var(--c-sky-border);
  --player-spark: var(--c-red);
  --player-spark-tint: var(--c-red-tint);

  /* Typography Stacks (Matched to jefflunt.com) */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-heading: "Chakra Petch", var(--font-sans);
  --font-body: "Atkinson Hyperlegible", var(--font-sans);
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, Menlo, monospace;

  accent-color: var(--c-sky);
  scrollbar-width: thin;
  scrollbar-color: var(--c-denim) var(--surface);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: clamp(1.0625rem, 1rem + 0.25vw, 1.1875rem);
  line-height: 1.65;
  border-top: 4px solid var(--c-sky);
  background-image:
    linear-gradient(180deg, rgba(94, 175, 239, 0.03) 0%, transparent 400px),
    radial-gradient(circle at 1px 1px, rgba(94, 175, 239, 0.09) 1px, transparent 0);
  background-size: 100% 400px, 32px 32px;
  background-repeat: no-repeat, repeat;
}

::selection {
  background-color: var(--c-sky);
  color: #0c0e13;
}

.skip-link {
  position: absolute;
  top: -3.5rem;
  left: 1rem;
  z-index: 100;
  background-color: var(--c-sky);
  color: #0c0e13;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.5rem 0.9rem;
  border-radius: 4px;
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

h1, h2, h3, h4, .brand {
  font-family: var(--font-heading);
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.15;
  margin-top: 0;
}

p, li {
  text-wrap: pretty;
}

p {
  margin-top: 0;
  margin-bottom: 1.35rem;
}

a {
  color: var(--c-sky);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.2em;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--c-sky-hover);
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--c-gold);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

/* Container */
.container {
  width: min(100% - 2.5rem, 74rem);
  margin-inline: auto;
}

/* 90s Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  background-color: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding-block: 0.85rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: 6px;
  border: 1px solid var(--border-highlight);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  display: block;
  object-fit: cover;
}

.brand-sky {
  color: var(--c-sky);
  text-shadow: 0 0 25px var(--c-sky-glow);
}

.brand-red {
  color: var(--c-red);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.6rem;
  background-color: var(--surface-2);
  border: 1px solid var(--border-highlight);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.brand-badge::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-red);
  box-shadow: 0 0 8px var(--c-red);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.nav-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: color 0.15s ease;
  letter-spacing: 0.02em;
}

.nav-link:hover {
  color: var(--c-sky);
}

.header-stereo-meter {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-sky);
  background: var(--surface-recessed);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.3rem 0.65rem;
}

.meter-led {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-red);
  box-shadow: 0 0 8px var(--c-red);
}

/* Hero Section */
.hero {
  padding-block: clamp(3.5rem, 6vw, 5.5rem);
  border-bottom: 1px solid var(--border);
  position: relative;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-gold);
  padding: 0.35rem 0.95rem;
  background-color: var(--c-gold-tint);
  border: 1px solid rgba(255, 219, 118, 0.3);
  border-radius: 4px;
  margin-bottom: 1.5rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2.4rem, 4.5vw, 4.2rem);
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
  max-width: 24ch;
}

.hero-lead {
  font-size: clamp(1.15rem, 1.1rem + 0.35vw, 1.35rem);
  color: var(--muted);
  max-width: 52ch;
  line-height: 1.55;
  margin-bottom: 2rem;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(180deg, var(--c-sky) 0%, var(--c-denim) 100%);
  color: #0c0e13;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.85rem 1.6rem;
  border-radius: 4px;
  border: 1px solid var(--c-sky-hover);
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 4px 20px var(--c-sky-glow);
  letter-spacing: 0.02em;
}

.btn-primary:hover {
  color: #000;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(94, 175, 239, 0.6);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--surface);
  color: var(--text);
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.85rem 1.6rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  text-decoration: none;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.btn-secondary:hover {
  border-color: var(--c-sky);
  color: var(--c-sky);
  background-color: var(--surface-2);
}

/* Hero Player */
.hero-player {
  display: block;
  margin-top: 2.25rem;
  box-shadow: 0 16px 45px rgba(0, 0, 0, 0.55);
}

/* Value Pillars Grid */
.section {
  padding-block: clamp(3.5rem, 6vw, 6rem);
  border-bottom: 1px solid var(--border);
}

.section-header {
  margin-bottom: 3rem;
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--c-gold);
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

.section-title {
  font-size: clamp(1.85rem, 3vw, 2.75rem);
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 58ch;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
}

.pillar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, border-color 0.15s ease;
  position: relative;
}

.pillar-card:hover {
  transform: translateY(-2px);
  border-color: var(--c-sky);
}

.pillar-icon {
  width: 44px;
  height: 44px;
  border-radius: 6px;
  background: var(--c-sky-tint);
  border: 1px solid var(--c-sky-border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--c-sky);
  margin-bottom: 1.25rem;
  font-size: 1.2rem;
  font-family: var(--font-mono);
  font-weight: 700;
}

.pillar-title {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
}

.pillar-body {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 0;
}

/* Code Deck */
.code-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 900px) {
  .code-split {
    grid-template-columns: 1fr 1fr;
  }
}

.code-window {
  background: var(--term-bg);
  border: 1px solid var(--term-border);
  border-radius: 6px;
  overflow: hidden;
  font-family: var(--font-mono);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.5);
}

.code-bar {
  background: var(--term-header);
  border-bottom: 1px solid var(--term-border);
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--term-muted);
}

.code-bar-tag {
  color: var(--c-gold);
  font-weight: 700;
}

.code-window pre {
  margin: 0;
  padding: 1.25rem;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--term-text);
}

.code-window code {
  background: transparent;
  border: none;
  padding: 0;
  color: inherit;
}

/* Syntax Highlighting */
.t-tag { color: var(--c-red); }
.t-attr { color: var(--c-gold); }
.t-str { color: var(--c-sky); }
.t-kw { color: #d2a8ff; }
.t-comment { color: var(--term-muted); font-style: italic; }
.t-fn { color: var(--c-sky); }

/* Reference Table */
.table-wrapper {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
  margin-top: 1.5rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

th, td {
  padding: 0.9rem 1.2rem;
  border-bottom: 1px solid var(--border);
}

th {
  font-family: var(--font-heading);
  background: var(--surface-2);
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.03em;
}

tr:last-child td {
  border-bottom: none;
}

/* Footer */
.site-footer {
  padding-block: 3.5rem 4rem;
  background: var(--surface-recessed);
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.footer-brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.95rem;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--c-sky);
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.site-version {
  font-family: var(--font-mono);
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--c-sky);
}