/* ============================================
   ONYX FIRMWARE HUB — Luxury Redesign
   ============================================ */

:root {
  --bg-primary: #08080a;
  --bg-secondary: #0e0e12;
  --bg-elevated: #141418;
  --bg-card: rgba(18, 18, 24, 0.7);
  --bg-card-hover: rgba(24, 24, 32, 0.85);
  --bg-glass: rgba(20, 20, 28, 0.5);

  --text-primary: #e8e6e3;
  --text-secondary: #8a8a8e;
  --text-muted: #4e4e54;
  --text-white: #ffffff;

  --accent-gold: #b8956a;
  --accent-gold-dim: rgba(184, 149, 106, 0.15);
  --accent-silver: #a0a0a8;

  --gradient-gold: linear-gradient(135deg, #b8956a, #d4b896);
  --gradient-surface: linear-gradient(180deg, rgba(255,255,255,0.03) 0%, transparent 100%);
  --gradient-border: linear-gradient(135deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));

  --border-subtle: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.1);
  --border-gold: rgba(184, 149, 106, 0.2);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.5);
  --shadow-lg: 0 16px 64px rgba(0,0,0,0.6);
  --shadow-card: 0 1px 0 rgba(255,255,255,0.03) inset, 0 4px 24px rgba(0,0,0,0.4);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  --nav-height: 64px;
  --container-max: 1120px;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
}

/* --- Reset --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.08); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.14); }

::selection {
  background: rgba(184, 149, 106, 0.25);
  color: #fff;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Loading Screen --- */
.loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}
.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.loader-bar {
  width: 120px;
  height: 1px;
  background: rgba(255,255,255,0.06);
  border-radius: 1px;
  overflow: hidden;
  position: relative;
}
.loader-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: -40%;
  width: 40%;
  height: 100%;
  background: var(--gradient-gold);
  animation: loaderSlide 1.2s ease-in-out infinite;
}
@keyframes loaderSlide {
  0% { left: -40%; }
  100% { left: 100%; }
}
.loader-brand {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 8px;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* --- Cursor Glow --- */
.cursor-glow {
  position: fixed;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184,149,106,0.04) 0%, transparent 60%);
  pointer-events: none;
  z-index: 9998;
  will-change: transform;
}

/* --- Background Ambient --- */
.bg-ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.08;
}
.ambient-orb-1 {
  width: 600px;
  height: 600px;
  background: #b8956a;
  top: -200px;
  right: -200px;
  animation: ambientDrift 30s ease-in-out infinite;
}
.ambient-orb-2 {
  width: 500px;
  height: 500px;
  background: #4a4a52;
  bottom: 10%;
  left: -150px;
  animation: ambientDrift 35s ease-in-out infinite reverse;
}
@keyframes ambientDrift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(40px, -30px) scale(1.05); }
}

/* --- Grain Overlay --- */
.grain-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background 0.4s ease, box-shadow 0.4s ease, transform 0.5s var(--ease-out-expo);
}
.navbar.scrolled {
  background: rgba(8,8,10,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border-subtle);
}
.navbar.nav-hidden {
  transform: translateY(-100%);
}
.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}
.logo-mark {
  width: 26px;
  height: 26px;
  border: 1.5px solid rgba(255,255,255,0.12);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 800;
  color: var(--accent-gold);
}
.logo-text {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-primary);
}
.nav-center {
  display: flex;
  gap: 4px;
}
.nav-link {
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color 0.2s ease, background 0.2s ease;
  letter-spacing: 0.2px;
}
.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.04);
}
.nav-end {
  display: flex;
  gap: 6px;
  align-items: center;
  flex-shrink: 0;
}
.nav-icon-btn {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-icon-btn:hover {
  color: var(--text-secondary);
  background: rgba(255,255,255,0.05);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  z-index: 1010;
  position: relative;
}
.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.3s var(--ease-out-expo), opacity 0.2s ease;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* --- Mobile Menu Overlay --- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.mobile-menu.active {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}
.mobile-menu-bg {
  position: absolute;
  inset: 0;
  background: rgba(8,8,10,0.96);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
}
.mobile-menu-content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 8px;
  padding: 80px 24px 40px;
}
.mobile-link {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 12px 24px;
  letter-spacing: -0.5px;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.4s ease, transform 0.4s var(--ease-out-expo), color 0.2s ease;
}
.mobile-menu.active .mobile-link {
  opacity: 1;
  transform: translateY(0);
}
.mobile-link:hover {
  color: var(--text-white);
}
.mobile-menu-footer {
  display: flex;
  gap: 24px;
  margin-top: 40px;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.4s ease 0.35s, transform 0.4s var(--ease-out-expo) 0.35s;
}
.mobile-menu.active .mobile-menu-footer {
  opacity: 1;
  transform: translateY(0);
}
.mobile-social {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  transition: color 0.2s ease;
}
.mobile-social:hover {
  color: var(--text-secondary);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 24px 60px;
  max-width: var(--container-max);
  margin: 0 auto;
  gap: 80px;
}
.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
}
.eyebrow-line {
  width: 24px;
  height: 1px;
  background: var(--accent-gold);
}
.eyebrow-text {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-gold);
}
.hero-title {
  font-size: clamp(44px, 6.5vw, 80px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -3px;
  color: var(--text-white);
}
.hero-title .title-accent {
  color: var(--text-muted);
  font-weight: 400;
}
.hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 440px;
  line-height: 1.75;
  font-weight: 400;
}
.hero-codename {
  display: flex;
  align-items: center;
  gap: 16px;
}
.codename-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 6px;
  color: var(--text-secondary);
  letter-spacing: 2px;
}
.codename-sep {
  width: 1px;
  height: 16px;
  background: var(--border-subtle);
}
.codename-device {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 400;
}
.hero-buttons {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  padding-top: 4px;
}

/* Hero Device Visual */
.hero-visual {
  flex: 0 0 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.hero-device {
  position: relative;
  width: 100%;
  max-width: 340px;
}
.hero-device img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  filter: brightness(0.95) contrast(1.05);
  animation: deviceFloat 8s ease-in-out infinite;
}
@keyframes deviceFloat {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-14px) rotate(0.5deg); }
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 28px;
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.35s var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--text-white);
  color: var(--bg-primary);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(255,255,255,0.12);
}
.btn-secondary {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}
.btn-ghost:hover {
  color: var(--text-primary);
  border-color: var(--border-hover);
}
.btn-lg {
  padding: 14px 32px;
  font-size: 14px;
}
.btn-block {
  width: 100%;
  justify-content: center;
}
.btn-gold {
  background: var(--gradient-gold);
  color: #0a0a0a;
}
.btn-gold:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 32px rgba(184,149,106,0.2);
}

/* --- Section Styling --- */
.section {
  position: relative;
  z-index: 2;
  padding: 100px 0;
}
.section-header {
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 14px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -1.5px;
  color: var(--text-white);
  margin-bottom: 10px;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 480px;
  line-height: 1.7;
}
.divider {
  width: 100%;
  height: 1px;
  background: var(--border-subtle);
  margin: 0;
  border: none;
}

/* --- Latest Build --- */
.latest-section {
  position: relative;
  z-index: 2;
  padding: 0 0 60px;
}
.latest-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px 48px;
  backdrop-filter: blur(20px);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.latest-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 20px;
}
.latest-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-gold);
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.latest-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}
.latest-info { flex: 1; }
.latest-version {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 14px;
  color: var(--text-white);
}
.latest-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.meta-tag {
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
}
.meta-tag.region {
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}
.meta-tag.android {
  background: rgba(255,255,255,0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}
.meta-tag.method {
  background: var(--accent-gold-dim);
  color: var(--accent-gold);
  border: 1px solid var(--border-gold);
}
.latest-desc {
  color: var(--text-secondary);
  font-size: 14px;
  max-width: 480px;
  line-height: 1.7;
  margin-bottom: 6px;
}
.latest-details {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.3px;
}
.latest-section .latest-card {
  margin-bottom: 16px;
}
.latest-section .latest-card:last-child {
  margin-bottom: 0;
}

/* --- Firmware Section --- */
.firmware-controls {
  display: flex;
  gap: 14px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}
.search-box {
  flex: 1;
  min-width: 240px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color 0.3s ease;
}
.search-box:focus-within {
  border-color: var(--border-hover);
}
.search-box svg {
  flex-shrink: 0;
  color: var(--text-muted);
}
.search-box input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 13px;
}
.search-box input::placeholder { color: var(--text-muted); }

.filter-group {
  display: flex;
  gap: 10px;
}
.filter-select {
  padding: 11px 36px 11px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 13px;
  cursor: pointer;
  transition: border-color 0.3s ease;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%234e4e54' stroke-width='2' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}
.filter-select:focus { outline: none; border-color: var(--border-hover); }
.filter-select option { background: var(--bg-secondary); color: var(--text-primary); }

/* Firmware Grid */
.firmware-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

/* Firmware Card */
.firmware-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.4s var(--ease-out-expo);
  cursor: pointer;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.firmware-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: var(--gradient-border);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask-composite: xor;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.firmware-card:hover {
  transform: translateY(-3px);
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}
.firmware-card:hover::before { opacity: 1; }

.firmware-card.latest-highlight {
  border-color: var(--border-gold);
}
.firmware-card.latest-highlight .fw-version::after {
  content: 'LATEST';
  font-size: 9px;
  font-weight: 700;
  padding: 2px 8px;
  background: var(--accent-gold-dim);
  color: var(--accent-gold);
  border-radius: 4px;
  letter-spacing: 1px;
  margin-left: 10px;
  vertical-align: middle;
}

.fw-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}
.fw-version {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
}
.fw-method {
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  white-space: nowrap;
}
.fw-meta {
  display: flex;
  gap: 8px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.fw-badge {
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;
  background: rgba(255,255,255,0.03);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}
.fw-actions {
  display: flex;
  gap: 10px;
}
.fw-download-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px;
  background: var(--text-white);
  color: var(--bg-primary);
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s var(--ease-out-expo);
  text-decoration: none;
}
.fw-download-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(255,255,255,0.1);
}
.fw-info-btn {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.3s ease;
}
.fw-info-btn:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text-secondary);
  border-color: var(--border-hover);
}

/* Shimmer */
.firmware-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.015), transparent);
  transition: left 0.7s ease;
  pointer-events: none;
}
.firmware-card:hover::after { left: 100%; }

/* Skeleton */
.skeleton .skeleton-line {
  background: linear-gradient(90deg, rgba(255,255,255,0.03) 25%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0.03) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 6px;
  margin-bottom: 12px;
}
.skeleton-lg { height: 22px; width: 70%; }
.skeleton-sm { height: 14px; width: 50%; }
.skeleton-md { height: 14px; width: 60%; }
.skeleton-btn { height: 42px; width: 100%; margin-top: 6px; border-radius: var(--radius-sm); }
@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.no-results svg { margin-bottom: 16px; opacity: 0.2; }
.no-results p { font-size: 14px; }

/* --- Device Info --- */
.device-info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
}
.info-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: all 0.3s var(--ease-out-expo);
}
.info-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.info-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.info-value {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-white);
}

/* --- Contributors --- */
.contributors-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.contributor-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: all 0.3s var(--ease-out-expo);
}
.contributor-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}
.contributor-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
}
.contributor-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.3s ease;
}
.contributor-card:hover .contributor-avatar img {
  transform: scale(1.05);
}
.avatar-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-gold);
  font-size: 18px;
  font-weight: 800;
  color: #0a0a0a;
}
.contributor-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-white);
  margin-bottom: 2px;
}
.contributor-role {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.contributor-links {
  display: flex;
  gap: 8px;
}
.contributor-links a {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  transition: all 0.2s ease;
}
.contributor-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}

/* --- FAQ --- */
.faq-list {
  max-width: 700px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.faq-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.3s ease;
  background: var(--bg-card);
}
.faq-item:hover {
  border-color: var(--border-hover);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: color 0.2s ease;
}
.faq-question:hover {
  color: var(--text-white);
}
.faq-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform 0.3s var(--ease-out-expo);
  flex-shrink: 0;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease-out-expo);
}
.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.75;
}

/* --- Installation Guide --- */
.guide-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
}
.guide-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}
.guide-tab:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}
.guide-tab.active {
  background: var(--text-white);
  color: var(--bg-primary);
  border-color: transparent;
}
.guide-panel { display: none; }
.guide-panel.active {
  display: block;
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.guide-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 680px;
}
.guide-step {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transition: border-color 0.3s ease;
}
.guide-step:hover {
  border-color: var(--border-hover);
}
.step-number {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-muted);
  flex-shrink: 0;
  line-height: 1;
  padding-top: 2px;
  font-family: var(--font-mono);
}
.step-content h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--text-white);
}
.step-content p {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.7;
}

/* Code Blocks */
.code-block {
  margin-top: 12px;
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border-subtle);
}
.code-lang {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}
.copy-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: 5px;
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.copy-btn:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text-secondary);
}
.copy-btn.copied {
  color: var(--accent-gold);
  border-color: var(--border-gold);
}
.code-block pre {
  padding: 14px;
  overflow-x: auto;
}
.code-block code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Support CTA --- */
.support-card {
  position: relative;
  text-align: center;
  padding: 56px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.support-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 10px;
  color: var(--text-white);
}
.support-desc {
  color: var(--text-secondary);
  font-size: 14px;
  max-width: 440px;
  margin: 0 auto 28px;
  line-height: 1.7;
}

/* --- Footer --- */
.footer {
  position: relative;
  z-index: 2;
  padding: 40px 0;
  border-top: 1px solid var(--border-subtle);
}
.footer-gradient {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(184,149,106,0.2), transparent);
}
.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-logo {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--text-secondary);
}
.footer-codename {
  font-size: 11px;
  color: var(--text-muted);
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 13px;
  color: var(--text-muted);
  transition: color 0.2s ease;
}
.footer-links a:hover { color: var(--text-secondary); }
.footer-copy {
  font-size: 12px;
  color: var(--text-muted);
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px;
  max-width: 460px;
  width: 100%;
  position: relative;
  transform: translateY(16px) scale(0.97);
  transition: transform 0.4s var(--ease-out-expo);
  box-shadow: var(--shadow-lg);
}
.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}
.modal-close:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text-secondary);
}
.modal-header { margin-bottom: 24px; }
.modal-badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 6px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}
.modal-title {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-white);
}
.modal-info {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.modal-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: rgba(255,255,255,0.02);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}
.modal-label {
  font-size: 12px;
  color: var(--text-muted);
}
.modal-value {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

/* --- Toast --- */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.toast {
  padding: 14px 20px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: toastIn 0.4s var(--ease-out-expo), toastOut 0.3s ease 2.7s forwards;
  display: flex;
  align-items: center;
  gap: 10px;
}
.toast svg {
  flex-shrink: 0;
  color: var(--accent-gold);
}
@keyframes toastIn {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to { opacity: 0; transform: translateX(30px); }
}

/* --- Animate on Scroll --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 100px;
    min-height: auto;
    gap: 40px;
  }
  .hero-content { align-items: center; }
  .hero-subtitle { max-width: 100%; }
  .hero-codename { justify-content: center; }
  .hero-buttons { justify-content: center; }
  .hero-visual { flex: none; order: -1; }
  .hero-device { max-width: 260px; }
  .latest-content {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }
  .latest-desc { max-width: 100%; }
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .nav-center {
    display: none;
  }
  .nav-end .nav-icon-btn {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }

  .firmware-grid { grid-template-columns: 1fr; }
  .device-info-grid { grid-template-columns: 1fr 1fr; }
  .contributors-grid { grid-template-columns: 1fr; }
  .filter-group { width: 100%; }
  .filter-select { flex: 1; }
  .firmware-controls { flex-direction: column; }
  .guide-tabs { flex-direction: column; }
  .guide-step { flex-direction: column; gap: 12px; }
  .section { padding: 60px 0; }
}

@media (max-width: 480px) {
  .hero-title { letter-spacing: -2px; }
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
  }
  .firmware-card { padding: 20px; }
  .fw-actions { flex-direction: column; }
  .fw-info-btn { width: 100%; height: 38px; }
  .device-info-grid { grid-template-columns: 1fr; }
}