/* ==========================================================================
   MPFUN marketing site
   Tokens mirror ThemeColors in theme_manager.py so the site and the app
   read as the same product. Switch [data-theme] on <html> to retheme.
   ========================================================================== */

:root {
  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Manrope", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --maxw: 1120px;
}

/* ---- Theme: Nebula (default) --------------------------------------- */
:root,
[data-theme="nebula"] {
  --bg-primary: #0a0e14;
  --bg-secondary: #0f1419;
  --bg-tertiary: #1a1f26;
  --bg-elevated: #232931;

  --text-primary: #eceff4;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --accent-primary: #06b6d4;
  --accent-secondary: #14b8a6;
  --accent-hover: #0891b2;

  --border-color: rgba(6, 182, 212, 0.2);
  --border-subtle: rgba(255, 255, 255, 0.06);

  --viz-bg: #02070d;
  --viz-bar: #06b6d4;
  --viz-peak: #ecfeff;
}

/* ---- Theme: Royal ----------------------------------------------------- */
[data-theme="royal"] {
  --bg-primary: #0b0d21;
  --bg-secondary: #0e1428;
  --bg-tertiary: #151b35;
  --bg-elevated: #1a2142;

  --text-primary: #f8f9fa;
  --text-secondary: #adb5bd;
  --text-muted: #6c757d;

  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-hover: #7c3aed;

  --border-color: rgba(99, 102, 241, 0.15);
  --border-subtle: rgba(255, 255, 255, 0.08);

  --viz-bg: #050714;
  --viz-bar: #8b5cf6;
  --viz-peak: #ddd6fe;
}

/* ---- Theme: Solar (light) --------------------------------------------- */
[data-theme="solar"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f3f4f6;
  --bg-tertiary: #f9fafb;
  --bg-elevated: #ffffff;

  --text-primary: #24292f;
  --text-secondary: #57606a;
  --text-muted: #8b949e;

  --accent-primary: #0969da;
  --accent-secondary: #0550ae;
  --accent-hover: #0a58ca;

  --border-color: rgba(9, 105, 218, 0.2);
  --border-subtle: rgba(208, 215, 222, 0.6);

  --viz-bg: #ebf5fb;
  --viz-bar: #1a6fa8;
  --viz-peak: #ff8c00;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.55;
  transition: background-color 0.35s ease, color 0.35s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 28px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-primary);
}

h1, h2, h3 {
  font-family: var(--font-display);
  margin: 0;
  letter-spacing: -0.01em;
}

/* ---- Header ------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background-color: color-mix(in srgb, var(--bg-primary) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.wordmark .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 10px var(--accent-primary);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav a {
  font-size: 14.5px;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--text-primary);
}

.theme-switch {
  display: flex;
  gap: 6px;
  padding: 4px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: 999px;
}

.theme-switch button {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}

.theme-switch button[data-swatch="nebula"] { background: #06b6d4; }
.theme-switch button[data-swatch="royal"] { background: #6366f1; }
.theme-switch button[data-swatch="solar"] { background: #0969da; }

.theme-switch button.active {
  border-color: var(--text-primary);
}

/* ---- Hero ----------------------------------------------------------- */

.hero {
  padding: 88px 0 64px;
}

.hero .wrap {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero h1 {
  font-size: 46px;
  line-height: 1.12;
  margin: 14px 0 20px;
}

.hero p.lede {
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 46ch;
  margin-bottom: 30px;
}

.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14.5px;
  padding: 13px 22px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--accent-primary);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-secondary);
}

.btn-small {
  padding: 9px 14px;
  font-size: 13px;
}

/* ---- Player mock / visualizer, the signature element ---------------- */

.player-mock {
  background: var(--bg-elevated);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.player-mock .titlebar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.player-mock .titlebar span {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-muted);
}

.player-mock .dots {
  display: flex;
  gap: 6px;
}

.player-mock .dots i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-subtle);
  display: block;
}

.viz-frame {
  background: var(--viz-bg);
  border-radius: var(--radius-md);
  padding: 18px 16px 12px;
}

#visualizer {
  width: 100%;
  height: 140px;
  display: block;
}

.now-playing {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.now-playing strong {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ---- Sections ---------------------------------------------------------- */

section {
  padding: 72px 0;
  border-top: 1px solid var(--border-subtle);
}

.section-head {
  max-width: 60ch;
  margin-bottom: 44px;
}

.section-head h2 {
  font-size: 30px;
  margin: 10px 0 12px;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 15.5px;
}

/* ---- Features ----------------------------------------------------------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 24px;
}

.feature-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 14.5px;
  margin: 0;
}

.feature-card .icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: color-mix(in srgb, var(--accent-primary) 16%, transparent);
  border: 1px solid var(--border-color);
  margin-bottom: 14px;
}

/* ---- Editions --------------------------------------------------------- */

.edition-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.edition-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 30px;
  display: flex;
  flex-direction: column;
}

.edition-card.pro {
  border-color: var(--border-color);
  background: linear-gradient(160deg, var(--bg-secondary), var(--bg-elevated));
}

.edition-card .price {
  font-family: var(--font-mono);
  font-size: 26px;
  margin: 6px 0 20px;
  color: var(--text-primary);
}

.edition-card .price span {
  font-size: 13px;
  color: var(--text-muted);
}

.edition-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 26px;
  color: var(--text-secondary);
  font-size: 14.5px;
}

.edition-card li {
  padding: 7px 0;
  border-top: 1px solid var(--border-subtle);
}

.edition-card li:first-child {
  border-top: none;
}

/* ---- Download ----------------------------------------------------------- */

.download-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.version-tag {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
}

.version-tag strong {
  color: var(--accent-primary);
}

#changelog-line {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 6px;
  max-width: 56ch;
}

/* ---- Footer ------------------------------------------------------------ */

footer {
  padding: 32px 0 48px;
  border-top: 1px solid var(--border-subtle);
}

footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

footer p {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0;
}

/* ---- Responsive --------------------------------------------------------- */

@media (max-width: 860px) {
  .hero .wrap {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 34px;
  }

  .feature-grid,
  .edition-grid {
    grid-template-columns: 1fr;
  }

  .site-nav a:not(.theme-switch) {
    display: none;
  }
}

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