@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700&family=Space+Grotesk:wght@500;700;900&display=swap');

/* ==========================================================================
   EUPHONY NEO-BRUTALIST DESIGN SYSTEM & TOKENS
   Inspired by Euphony Flutter App (`lib/design/tokens/brutal.dart`)
   ========================================================================== */

:root, [data-theme="light"] {
  /* Colors */
  --eu-ink: #121218;
  --eu-accent: #6A4BE8;
  --eu-accent-hover: #5639CC;
  --eu-highlight: #FFEB3B;
  --eu-alert: #D81B60;
  --eu-surface: #FAF7F2;
  --eu-card-bg: #FFFFFF;
  --eu-container: #FFFBEB;
  --eu-container-high: #F3E8FF;
  --eu-container-highest: #E0F2FE;
  
  /* Text */
  --eu-text: #121218;
  --eu-text-muted: #52525C;
  --eu-on-accent: #FFFFFF;
  --eu-on-highlight: #121218;
  --eu-on-alert: #FFFFFF;

  /* Borders & Shapes */
  --eu-border: 2.5px solid var(--eu-ink);
  --eu-border-thin: 1.5px solid var(--eu-ink);
  --eu-radius-sm: 8px;
  --eu-radius: 12px;
  --eu-radius-lg: 16px;
  --eu-radius-pill: 9999px;

  /* Shadows - Hard brutalist offsets (zero blur) */
  --eu-shadow-sm: 2.5px 2.5px 0px var(--eu-ink);
  --eu-shadow: 4px 4px 0px var(--eu-ink);
  --eu-shadow-lg: 6px 6px 0px var(--eu-ink);
  --eu-shadow-xl: 8px 8px 0px var(--eu-ink);

  /* Navbar */
  --eu-nav-bg: rgba(250, 247, 242, 0.92);
}

[data-theme="dark"] {
  --eu-surface: #12121A;
  --eu-card-bg: #181824;
  --eu-container: #202030;
  --eu-container-high: #29293F;
  --eu-container-highest: #33334F;
  
  --eu-text: #F8F9FA;
  --eu-text-muted: #A0A0B0;
  
  --eu-border: 2.5px solid #29293F;
  --eu-border-thin: 1.5px solid #29293F;
  
  --eu-shadow-sm: 2.5px 2.5px 0px #000000;
  --eu-shadow: 4px 4px 0px #000000;
  --eu-shadow-lg: 6px 6px 0px #000000;
  --eu-shadow-xl: 8px 8px 0px #000000;

  --eu-nav-bg: rgba(18, 18, 26, 0.92);
}

[data-theme="amoled"] {
  --eu-surface: #000000;
  --eu-card-bg: #0F0F16;
  --eu-container: #161622;
  --eu-container-high: #1E1E2E;
  --eu-container-highest: #28283D;
  
  --eu-text: #FFFFFF;
  --eu-text-muted: #9E9EB0;
  
  --eu-border: 2.5px solid #28283D;
  --eu-border-thin: 1.5px solid #28283D;
  
  /* Vibrant violet hard shadow in AMOLED mode for contrast */
  --eu-shadow-sm: 2.5px 2.5px 0px var(--eu-accent);
  --eu-shadow: 4px 4px 0px var(--eu-accent);
  --eu-shadow-lg: 6px 6px 0px var(--eu-accent);
  --eu-shadow-xl: 8px 8px 0px var(--eu-accent);

  --eu-nav-bg: rgba(0, 0, 0, 0.92);
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--eu-surface);
  color: var(--eu-text);
  line-height: 1.5;
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--eu-text);
}

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

button {
  font-family: 'Outfit', sans-serif;
  cursor: pointer;
  border: none;
  background: none;
}

/* Custom Brutalist Scrollbar */
::-webkit-scrollbar {
  width: 12px;
}
::-webkit-scrollbar-track {
  background: var(--eu-surface);
  border-left: var(--eu-border);
}
::-webkit-scrollbar-thumb {
  background: var(--eu-accent);
  border: var(--eu-border-thin);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--eu-accent-hover);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */

.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--eu-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: var(--eu-border);
  padding: 0.85rem 0;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--eu-text);
}

.brand-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  object-position: center;
  display: block;
  background: transparent;
  border: none;
  box-shadow: none;
  border-radius: 0;
  padding: 0;
  margin: 0;
  flex-shrink: 0;
}

.brand-badge {
  font-family: 'Outfit', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
  padding: 0.2rem 0.5rem;
  border-radius: var(--eu-radius-pill);
  border: var(--eu-border-thin);
  box-shadow: var(--eu-shadow-sm);
  margin-left: 0.25rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-link {
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s ease, transform 0.2s ease;
  position: relative;
}

.nav-link:hover {
  color: var(--eu-accent);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Theme Switcher Toggle Group */
.theme-switcher {
  display: flex;
  align-items: center;
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius-pill);
  padding: 0.25rem;
  box-shadow: var(--eu-shadow-sm);
}

.theme-btn {
  padding: 0.35rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--eu-radius-pill);
  color: var(--eu-text-muted);
  transition: all 0.2s ease;
}

.theme-btn.active {
  background-color: var(--eu-accent);
  color: var(--eu-on-accent);
  box-shadow: var(--eu-shadow-sm);
}

.theme-btn:hover:not(.active) {
  color: var(--eu-text);
}

/* Download Navbar Button */
.btn-nav-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--eu-accent);
  color: var(--eu-on-accent);
  padding: 0.55rem 1.15rem;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow);
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
  height: 40px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-nav-download:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--eu-shadow-lg);
  background-color: var(--eu-accent-hover);
}

.btn-nav-download:active {
  transform: translate(2px, 2px);
  box-shadow: var(--eu-shadow-sm);
}

/* Mobile Hamburger & Drawer (Hidden on Desktop) */
.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 40px;
  height: 40px;
  padding: 9px 8px;
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius-sm);
  box-shadow: var(--eu-shadow-sm);
  cursor: pointer;
  z-index: 1002;
  transition: transform 0.15s ease, background-color 0.2s ease;
}

.hamburger-btn:hover {
  background-color: var(--eu-surface);
}

.hamburger-bar {
  width: 100%;
  height: 2.5px;
  background-color: var(--eu-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.hamburger-btn.active .hamburger-bar:nth-child(1) {
  transform: translateY(9.5px) rotate(45deg);
}
.hamburger-btn.active .hamburger-bar:nth-child(2) {
  opacity: 0;
}
.hamburger-btn.active .hamburger-bar:nth-child(3) {
  transform: translateY(-9.5px) rotate(-45deg);
}

.mobile-menu-drawer {
  display: none;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero {
  position: relative;
  padding: 5rem 0 6rem;
  overflow: hidden;
}

.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 4rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--eu-radius-pill);
  font-size: 0.8rem;
  font-weight: 700;
  border: var(--eu-border);
  box-shadow: var(--eu-shadow-sm);
  background-color: var(--eu-card-bg);
  color: var(--eu-text);
}

.badge.yellow {
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
}

.badge.purple {
  background-color: var(--eu-container-high);
  color: var(--eu-ink);
}

.badge.pink {
  background-color: var(--eu-alert);
  color: var(--eu-on-alert);
}

.hero-title {
  font-size: 3.75rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.06;
}

.hero-title-highlight {
  display: inline-block;
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
  padding: 0 0.5rem;
  border: var(--eu-border);
  box-shadow: var(--eu-shadow-sm);
  transform: rotate(-1.5deg);
  margin: 0 0.25rem;
}

.hero-subtitle {
  font-size: 1.35rem;
  color: var(--eu-text-muted);
  font-weight: 500;
  max-width: 95%;
}

.hero-subtitle strong {
  color: var(--eu-text);
  font-weight: 700;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
  margin-top: 0.5rem;
}

/* Primary Brutalist Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background-color: var(--eu-accent);
  color: var(--eu-on-accent);
  padding: 1rem 2rem;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow-lg);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.btn-primary:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--eu-shadow-xl);
  background-color: var(--eu-accent-hover);
}

.btn-primary:active {
  transform: translate(2px, 2px);
  box-shadow: var(--eu-shadow-sm);
}

/* Secondary Brutalist Button */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  background-color: var(--eu-card-bg);
  color: var(--eu-text);
  padding: 1rem 2rem;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow-lg);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-secondary:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--eu-shadow-xl);
  background-color: var(--eu-container);
}

.btn-secondary:active {
  transform: translate(2px, 2px);
  box-shadow: var(--eu-shadow-sm);
}

/* Auto-detected OS badge indicator inside Hero */
.os-indicator-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--eu-text-muted);
}

.os-indicator-badge strong {
  color: var(--eu-accent);
}

/* Hero Visual / Mockup Container */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-card {
  position: relative;
  width: 100%;
  max-width: 520px;
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius-lg);
  box-shadow: var(--eu-shadow-xl);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.hero-card:hover {
  transform: translateY(-5px);
}

.hero-image {
  width: 100%;
  height: auto;
  display: block;
}

.floating-pill {
  position: absolute;
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 900;
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  border-radius: var(--eu-radius-pill);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: floatUpDown 4s ease-in-out infinite;
  z-index: 5;
}

.floating-pill-1 {
  top: -15px;
  left: -15px;
  transform: rotate(-4deg);
}

.floating-pill-2 {
  bottom: 20px;
  right: -20px;
  background-color: var(--eu-alert);
  color: var(--eu-on-alert);
  transform: rotate(3deg);
  animation-delay: 1.5s;
}

@keyframes floatUpDown {
  0%, 100% { transform: translateY(0) rotate(-4deg); }
  50% { transform: translateY(-8px) rotate(-2deg); }
}

/* ==========================================================================
   TICKER TAPE (NO SUBSCRIPTIONS, NO ADS, NO TELEMETRY)
   ========================================================================== */

.ticker {
  background-color: var(--eu-accent);
  color: var(--eu-on-accent);
  border-top: var(--eu-border);
  border-bottom: var(--eu-border);
  padding: 0.75rem 0;
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
}

.ticker-track {
  display: inline-flex;
  gap: 3rem;
  animation: marquee 25s linear infinite;
}

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ==========================================================================
   INTERACTIVE MINI-PLAYER ("EXPERIENCE THE UI")
   ========================================================================== */

.player-demo-section {
  padding: 6rem 0;
  background-color: var(--eu-container);
  border-bottom: var(--eu-border);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3.5rem;
}

.section-tagline {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--eu-accent);
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.75rem;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.15rem;
  color: var(--eu-text-muted);
}

.player-demo-grid {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: center;
}

/* Neo-Brutalist Player Card */
.player-card {
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius-lg);
  box-shadow: var(--eu-shadow-xl);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.player-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.player-pill {
  background-color: var(--eu-container-high);
  color: var(--eu-ink);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--eu-radius-pill);
  border: var(--eu-border-thin);
  box-shadow: var(--eu-shadow-sm);
}

.player-main-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.player-artwork {
  width: 90px;
  height: 90px;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--eu-accent), var(--eu-alert));
  color: white;
  flex-shrink: 0;
}

.player-track-details {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1;
}

.player-song-title {
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.2;
}

.player-artist-name {
  font-size: 0.95rem;
  color: var(--eu-text-muted);
  font-weight: 500;
}

/* Visualizer Canvas */
.visualizer-container {
  width: 100%;
  height: 70px;
  background-color: var(--eu-surface);
  border: var(--eu-border);
  border-radius: var(--eu-radius-sm);
  box-shadow: var(--eu-shadow-sm);
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

#visualizerCanvas {
  width: 100%;
  height: 100%;
}

/* Progress bar */
.player-progress {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.progress-track {
  width: 100%;
  height: 12px;
  background-color: var(--eu-surface);
  border: var(--eu-border-thin);
  border-radius: var(--eu-radius-pill);
  overflow: hidden;
  cursor: pointer;
  position: relative;
}

.progress-fill {
  height: 100%;
  width: 35%;
  background-color: var(--eu-accent);
  border-right: var(--eu-border-thin);
  transition: width 0.1s linear;
}

.progress-time {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--eu-text-muted);
}

/* Controls */
.player-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
}

.control-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  background-color: var(--eu-card-bg);
  color: var(--eu-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  box-shadow: var(--eu-shadow-sm);
  transition: all 0.15s ease;
}

.control-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--eu-shadow);
  background-color: var(--eu-container);
}

.control-btn:active {
  transform: translate(1px, 1px);
  box-shadow: none;
}

.control-btn.active-toggle {
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
}

.control-btn-play {
  width: 60px;
  height: 60px;
  background-color: var(--eu-accent);
  color: var(--eu-on-accent);
  font-size: 1.5rem;
  border-radius: var(--eu-radius-lg);
  box-shadow: var(--eu-shadow);
}

.control-btn-play:hover {
  background-color: var(--eu-accent-hover);
  transform: translate(-2px, -2px);
  box-shadow: var(--eu-shadow-lg);
}

/* Playlist / Queue Panel */
.player-playlist {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.playlist-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.playlist-title {
  font-size: 1.25rem;
}

.playlist-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.playlist-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.1rem;
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius);
  box-shadow: var(--eu-shadow-sm);
  cursor: pointer;
  transition: all 0.2s ease;
}

.playlist-item:hover {
  transform: translateX(4px);
  box-shadow: var(--eu-shadow);
  border-color: var(--eu-accent);
}

.playlist-item.active {
  background-color: var(--eu-container-highest);
  border-color: var(--eu-accent);
  font-weight: 700;
}

.playlist-item-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.playlist-index {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--eu-text-muted);
  width: 20px;
}

.playlist-item.active .playlist-index {
  color: var(--eu-accent);
}

.playlist-item-info {
  display: flex;
  flex-direction: column;
}

.playlist-item-title {
  font-size: 0.95rem;
  font-weight: 600;
}

.playlist-item-artist {
  font-size: 0.8rem;
  color: var(--eu-text-muted);
}

.playlist-duration {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--eu-text-muted);
}

/* ==========================================================================
   WHY EUPHONY? (PHILOSOPHY SECTION)
   ========================================================================== */

.philosophy-section {
  padding: 6rem 0;
  background-color: var(--eu-surface);
}

.philosophy-grid {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: stretch;
}

.philosophy-card {
  padding: 2.5rem;
  border-radius: var(--eu-radius-lg);
  border: var(--eu-border);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.philosophy-card.bad {
  background-color: var(--eu-card-bg);
  box-shadow: var(--eu-shadow-xl);
}

.philosophy-card.good {
  background-color: var(--eu-container-high);
  box-shadow: var(--eu-shadow-xl);
  border-color: var(--eu-accent);
}

.philosophy-card-header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.philosophy-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: var(--eu-shadow-sm);
}

.philosophy-card.bad .philosophy-icon {
  background-color: var(--eu-alert);
  color: white;
}

.philosophy-card.good .philosophy-icon {
  background-color: var(--eu-accent);
  color: white;
}

.philosophy-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.philosophy-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 1.05rem;
  font-weight: 500;
}

.philosophy-list li .bullet {
  font-weight: 900;
  font-size: 1.25rem;
  line-height: 1;
}

.philosophy-card.bad .bullet {
  color: var(--eu-alert);
}

.philosophy-card.good .bullet {
  color: var(--eu-accent);
}

/* ==========================================================================
   FEATURE GRID
   ========================================================================== */

.features-section {
  padding: 6rem 0;
  background-color: var(--eu-surface);
  border-top: var(--eu-border);
}

.features-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2rem;
}

.feature-card {
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius-lg);
  box-shadow: var(--eu-shadow);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--eu-shadow-xl);
}

.feature-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}

.feature-card:nth-child(1) .feature-icon-wrapper {
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
}

.feature-card:nth-child(2) .feature-icon-wrapper {
  background-color: var(--eu-accent);
  color: var(--eu-on-accent);
}

.feature-card:nth-child(3) .feature-icon-wrapper {
  background-color: var(--eu-alert);
  color: var(--eu-on-alert);
}

.feature-card:nth-child(4) .feature-icon-wrapper {
  background-color: var(--eu-container-highest);
  color: var(--eu-ink);
}

.feature-card:nth-child(5) .feature-icon-wrapper {
  background-color: var(--eu-container-high);
  color: var(--eu-ink);
}

.feature-card:nth-child(6) .feature-icon-wrapper {
  background-color: var(--eu-container);
  color: var(--eu-ink);
}

.feature-title {
  font-size: 1.35rem;
}

.feature-desc {
  font-size: 0.95rem;
  color: var(--eu-text-muted);
}

/* ==========================================================================
   DOWNLOAD HUB SECTION
   ========================================================================== */

.download-section {
  padding: 6rem 0;
  background-color: var(--eu-container);
  border-top: var(--eu-border);
  border-bottom: var(--eu-border);
}

.download-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(330px, 1fr));
  gap: 2.5rem;
  align-items: stretch;
}

.download-card {
  position: relative;
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius-lg);
  box-shadow: var(--eu-shadow-lg);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2rem;
  height: 100%;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.download-card:hover {
  transform: translate(-4px, -4px);
  box-shadow: var(--eu-shadow-xl);
}

/* Auto-detected OS recommendation highlight */
.download-card.is-recommended {
  border-color: var(--eu-accent);
  border-width: 3px;
  background-color: var(--eu-card-bg);
}

.recommended-badge {
  position: absolute;
  top: -16px;
  right: 20px;
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 900;
  font-size: 0.75rem;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border-radius: var(--eu-radius-pill);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow-sm);
  display: none;
}

.download-card.is-recommended .recommended-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.download-card-header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.download-card-info {
  flex: 1;
  min-width: 0;
}

.platform-icon {
  width: 60px;
  height: 60px;
  flex-shrink: 0;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.download-card[data-platform="android"] .platform-icon { background-color: #2FA25A; color: #fff; }
.download-card[data-platform="ios"] .platform-icon { background-color: #0B0B12; color: #fff; }
.download-card[data-platform="windows"] .platform-icon { background-color: #0F7CD6; color: #fff; }
.download-card[data-platform="macos"] .platform-icon { background-color: #3A3A46; color: #fff; }
.download-card[data-platform="linux"] .platform-icon { background-color: #E8821E; color: #fff; }

.download-card-info h3 {
  font-size: 1.5rem;
  margin-bottom: 0.2rem;
}

.version-pill {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--eu-text-muted);
}

.download-card-body {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.download-meta-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--eu-text-muted);
  border-top: var(--eu-border-thin);
  border-bottom: var(--eu-border-thin);
  padding: 0.75rem 0;
}

.download-meta-list li {
  display: flex;
  justify-content: space-between;
}

.download-meta-list li strong {
  color: var(--eu-text);
}

.download-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.btn-download-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  min-height: 52px;
  background-color: var(--eu-accent);
  color: var(--eu-on-accent);
  padding: 0.85rem 1rem;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all 0.15s ease;
}

.btn-download-main:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--eu-shadow-lg);
  background-color: var(--eu-accent-hover);
}

.btn-download-alt {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 48px;
  background-color: transparent;
  color: var(--eu-text);
  padding: 0.75rem 1rem;
  border-radius: var(--eu-radius);
  border: var(--eu-border-thin);
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all 0.15s ease;
}

.btn-download-alt:hover {
  background-color: var(--eu-surface);
  border-color: var(--eu-accent);
}

/* Upcoming Release Button & Card Styling */
.btn-download-upcoming {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  min-height: 52px;
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
  padding: 0.85rem 1rem;
  border-radius: var(--eu-radius);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 0.92rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: all 0.15s ease;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.btn-download-upcoming:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--eu-shadow-lg);
  background-color: #fce016;
}

.upcoming-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background-color: var(--eu-container-high);
  color: var(--eu-ink);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 0.72rem;
  text-transform: uppercase;
  padding: 0.25rem 0.65rem;
  border-radius: var(--eu-radius-pill);
  border: var(--eu-border-thin);
  box-shadow: var(--eu-shadow-sm);
}

.download-card.is-upcoming {
  background: linear-gradient(160deg, var(--eu-card-bg) 60%, var(--eu-container) 100%);
  border-style: dashed;
}

/* SHA256 Verify Checksum Modal Trigger */
.checksum-link {
  font-size: 0.8rem;
  color: var(--eu-text-muted);
  text-decoration: underline;
  text-align: center;
  cursor: pointer;
  transition: color 0.15s ease;
}

.checksum-link:hover {
  color: var(--eu-accent);
}

/* ==========================================================================
   FAQ SECTION (ACCORDION)
   ========================================================================== */

.faq-section {
  padding: 6rem 0;
  background-color: var(--eu-surface);
}

.faq-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.faq-item {
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius);
  box-shadow: var(--eu-shadow-sm);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.faq-item.active {
  box-shadow: var(--eu-shadow);
  border-color: var(--eu-accent);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  cursor: pointer;
  user-select: none;
}

.faq-toggle-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--eu-radius-sm);
  border: var(--eu-border-thin);
  background-color: var(--eu-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.faq-item.active .faq-toggle-icon {
  background-color: var(--eu-highlight);
  color: var(--eu-on-highlight);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 1.5rem;
  color: var(--eu-text-muted);
  font-size: 0.95rem;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.5rem;
}

/* ==========================================================================
   COMMUNITY & FOOTER
   ========================================================================== */

.footer {
  background-color: var(--eu-card-bg);
  border-top: var(--eu-border);
  padding: 4rem 0 2rem;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  padding-bottom: 3rem;
  border-bottom: var(--eu-border-thin);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-tagline {
  color: var(--eu-text-muted);
  font-size: 0.95rem;
}

.footer-star-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--eu-text-muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

/* ==========================================================================
   MODAL (SHA256 CHECKSUM VERIFY)
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(18, 18, 24, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  padding: 1.5rem;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: var(--eu-card-bg);
  border: var(--eu-border);
  border-radius: var(--eu-radius-lg);
  box-shadow: var(--eu-shadow-xl);
  max-width: 520px;
  width: 100%;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transform: translateY(20px);
  transition: transform 0.2s ease;
}

.modal-backdrop.active .modal-card {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.modal-header h3,
.modal-header h2 {
  flex: 1;
  min-width: 0;
  line-height: 1.3;
  margin: 0;
}

.modal-close-btn {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: var(--eu-radius-sm);
  border: var(--eu-border);
  box-shadow: var(--eu-shadow-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.checksum-box {
  background-color: var(--eu-surface);
  border: var(--eu-border-thin);
  border-radius: var(--eu-radius-sm);
  padding: 1rem;
  font-family: monospace;
  font-size: 0.85rem;
  word-break: break-all;
  color: var(--eu-text);
  user-select: all;
}


/* ==========================================================================
   RESPONSIVE DESIGN (MOBILE & TABLET)
   ========================================================================== */

@media (max-width: 968px) {
  .hero-container,
  .player-demo-grid,
  .philosophy-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-title {
    font-size: 2.85rem;
  }

  .nav-links,
  .desktop-only-theme,
  .btn-nav-download {
    display: none !important;
  }

  .hamburger-btn {
    display: flex;
  }

  .mobile-menu-drawer {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--eu-surface);
    border-bottom: var(--eu-border);
    box-shadow: 0px 10px 0px rgba(18, 18, 24, 1);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
    z-index: 999;
  }

  .mobile-menu-drawer.open {
    max-height: 650px;
    opacity: 1;
  }

  .mobile-menu-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
  }

  .mobile-theme-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-bottom: 2px dashed var(--eu-ink, #121218);
    padding-bottom: 1.25rem;
  }

  .mobile-menu-label {
    font-family: 'Outfit', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--eu-text-muted);
  }

  .mobile-theme-switcher {
    display: flex;
    gap: 0.5rem;
    width: 100%;
  }

  .mobile-theme-switcher .theme-btn {
    flex: 1;
    text-align: center;
    padding: 0.55rem;
    font-size: 0.85rem;
  }

  .mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
  }

  .mobile-nav-link {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--eu-text);
    padding: 0.75rem 1rem;
    background-color: var(--eu-card-bg);
    border: var(--eu-border);
    border-radius: var(--eu-radius-sm);
    box-shadow: var(--eu-shadow-sm);
    text-decoration: none;
    transition: all 0.15s ease;
  }

  .mobile-nav-link:hover, .mobile-nav-link:active {
    background-color: var(--eu-accent);
    color: var(--eu-on-accent);
    transform: translate(-2px, -2px);
    box-shadow: var(--eu-shadow);
  }
}

@media (max-width: 640px) {
  .nav-container {
    flex-wrap: nowrap;
    justify-content: space-between;
    padding: 0.6rem 1rem;
  }

  .nav-actions {
    width: auto;
    justify-content: flex-end;
    align-items: center;
  }

  .hero {
    padding: 2.5rem 0 3.5rem;
  }

  .hero-title {
    font-size: 2.15rem;
    line-height: 1.15;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
    gap: 0.75rem;
  }

  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
  }

  /* Compact, mobile-focused download cards (were oversized on phones). */
  .download-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 0 1rem;
  }

  .download-card {
    padding: 1.35rem 1.25rem;
    gap: 1.1rem;
    border-radius: 18px;
  }

  .download-card:hover {
    transform: none;
  }

  .download-card > div {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .download-card-body {
    margin-top: 0 !important;
  }

  .download-card-info h3 {
    font-size: 1.2rem !important;
  }

  .platform-icon {
    width: 48px;
    height: 48px;
    font-size: 1.5rem !important;
  }

  .download-card-body p {
    font-size: 0.88rem !important;
    line-height: 1.45;
  }

  .download-meta-list {
    font-size: 0.82rem;
  }

  .btn-download-main,
  .btn-download-alt {
    padding: 0.85rem 1rem;
    font-size: 0.92rem;
  }

  .modal-backdrop {
    padding: 1rem;
  }

  .modal-card {
    padding: 1.25rem;
    gap: 1rem;
  }
}