/* ============================================================
   Sudo Vision Downloader – style.css
   Premium minimalist design – pure black background
   ============================================================ */

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

:root {
  --black:        #000000;
  --black-2:      #080808;
  --black-3:      #0d0d0d;
  --surface-1:    rgba(255,255,255,0.04);
  --surface-2:    rgba(255,255,255,0.07);
  --surface-3:    rgba(255,255,255,0.10);
  --border:       rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.15);
  --white:        #ffffff;
  --white-80:     rgba(255,255,255,0.80);
  --white-60:     rgba(255,255,255,0.60);
  --white-40:     rgba(255,255,255,0.40);
  --white-20:     rgba(255,255,255,0.20);
  --white-10:     rgba(255,255,255,0.10);
  --accent:       #5b8af0;
  --accent-2:     #8b5cf6;
  --accent-glow:  rgba(91,138,240,0.25);
  --error:        #FF453A;
  --error-bg:     rgba(255,69,58,0.10);
  --success:      #30D158;
  --radius-sm:    10px;
  --radius-md:    16px;
  --radius-lg:    24px;
  --radius-xl:    32px;
  --font:         'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --transition:   0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }
input { font-family: var(--font); }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--black-2); }
::-webkit-scrollbar-thumb { background: var(--white-20); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--white-40); }

/* ── Background Orbs ── */
.bg-orbs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.35;
  animation: orbFloat 12s ease-in-out infinite;
}

.orb-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(91,138,240,0.5) 0%, transparent 70%);
  top: -200px; left: -150px;
  animation-delay: 0s;
}

.orb-2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(139,92,246,0.4) 0%, transparent 70%);
  top: 30%; right: -100px;
  animation-delay: -4s;
}

.orb-3 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(91,138,240,0.3) 0%, transparent 70%);
  bottom: 10%; left: 30%;
  animation-delay: -8s;
}

@keyframes orbFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  33% { transform: translateY(-30px) scale(1.05); }
  66% { transform: translateY(20px) scale(0.97); }
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 24px;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(20px) saturate(150%);
  -webkit-backdrop-filter: blur(20px) saturate(150%);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  transition: opacity var(--transition);
}

.nav-logo:hover { opacity: 0.75; }

.logo-icon svg { display: block; }

.logo-text {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.nav-link {
  padding: 6px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--white-60);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover {
  color: var(--white);
  background: var(--surface-2);
}

.install-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--white);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: background var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.install-btn:hover {
  background: var(--surface-3);
  border-color: var(--border-hover);
}

/* ── Main Layout ── */
main {
  position: relative;
  z-index: 1;
  padding-top: 64px;
}

/* ── Hero ── */
.hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 100px 24px 80px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--white-60);
  letter-spacing: 0.02em;
  margin-bottom: 32px;
  animation: fadeSlideDown 0.6s ease both;
}

.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 20px;
  animation: fadeSlideDown 0.6s 0.1s ease both;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--white-60);
  max-width: 480px;
  margin-bottom: 48px;
  animation: fadeSlideDown 0.6s 0.2s ease both;
}

/* ── Downloader Card ── */
.downloader-card {
  width: 100%;
  max-width: 780px;
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  backdrop-filter: blur(24px) saturate(120%);
  -webkit-backdrop-filter: blur(24px) saturate(120%);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.04) inset,
    0 40px 80px rgba(0,0,0,0.6),
    0 0 60px var(--accent-glow);
  animation: fadeSlideUp 0.7s 0.3s ease both;
  transition: box-shadow var(--transition-slow);
}

.downloader-card:focus-within {
  box-shadow:
    0 0 0 1px rgba(91,138,240,0.2) inset,
    0 40px 80px rgba(0,0,0,0.6),
    0 0 80px rgba(91,138,240,0.3);
}

/* ── Input Group ── */
.input-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.05);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  overflow: hidden;
}

.input-wrapper:focus-within {
  border-color: rgba(91,138,240,0.5);
  background: rgba(255,255,255,0.07);
  box-shadow: 0 0 0 3px rgba(91,138,240,0.12);
}

.input-icon {
  padding: 0 14px 0 18px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.url-input {
  flex: 1;
  padding: 16px 0;
  background: transparent;
  border: none;
  outline: none;
  color: var(--white);
  font-size: 0.95rem;
  font-weight: 400;
  min-width: 0;
}

.url-input::placeholder { color: var(--white-30); }

.url-input::-webkit-search-decoration,
.url-input::-webkit-search-cancel-button { display: none; }

.paste-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  margin: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--white-60);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

.paste-btn:hover {
  color: var(--white);
  background: var(--surface-3);
  border-color: var(--border-hover);
}

.paste-btn:active { transform: scale(0.97); }

/* ── Fetch Button ── */
.fetch-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 16px 24px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  border-radius: var(--radius-md);
  letter-spacing: -0.01em;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 24px rgba(91,138,240,0.35);
  position: relative;
  overflow: hidden;
}

.fetch-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}

.fetch-btn:hover::before { opacity: 1; }
.fetch-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 32px rgba(91,138,240,0.45); }
.fetch-btn:active { transform: translateY(0); }
.fetch-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.fetch-btn-icon { flex-shrink: 0; transition: transform var(--transition); }
.fetch-btn:hover .fetch-btn-icon { transform: translateX(3px); }

/* ── Loading State ── */
.loading-state {
  margin-top: 24px;
  padding: 24px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  animation: fadeIn 0.3s ease;
}

.loading-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
}

.spinner-ring {
  position: relative;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
}

.ring {
  position: absolute;
  inset: 0;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.ring-pulse {
  position: absolute;
  inset: 6px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(91,138,240,0.3) 0%, transparent 70%);
  animation: ringPulse 1.8s ease-in-out infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes ringPulse { 0%, 100% { opacity: 0.4; transform: scale(0.9); } 50% { opacity: 1; transform: scale(1.1); } }

.loading-title { font-size: 0.95rem; font-weight: 600; margin-bottom: 2px; }
.loading-sub { font-size: 0.82rem; color: var(--white-40); }

.progress-bar {
  height: 3px;
  background: var(--surface-2);
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 2px;
  width: 0%;
  transition: width 0.4s ease;
  animation: progressShimmer 1.5s ease infinite;
}

@keyframes progressShimmer {
  0% { width: 0%; }
  30% { width: 45%; }
  60% { width: 72%; }
  90% { width: 88%; }
  100% { width: 88%; }
}

/* ── Error Card ── */
.error-card {
  margin-top: 16px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: var(--error-bg);
  border: 1px solid rgba(255,69,58,0.25);
  border-radius: var(--radius-md);
  animation: fadeSlideDown 0.3s ease;
}

.error-icon-wrap { flex-shrink: 0; padding-top: 1px; }
.error-content { flex: 1; min-width: 0; }
.error-title { font-size: 0.9rem; font-weight: 600; color: var(--error); margin-bottom: 2px; }
.error-message { font-size: 0.83rem; color: rgba(255,69,58,0.8); }

.error-close {
  flex-shrink: 0;
  padding: 4px;
  color: var(--white-40);
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}

.error-close:hover { color: var(--white); background: var(--surface-2); }

/* ── Result Panel ── */
.result-panel {
  margin-top: 24px;
  animation: fadeSlideUp 0.45s ease;
}

/* ── Media Preview ── */
.media-preview {
  display: flex;
  gap: 18px;
  margin-bottom: 24px;
  padding: 18px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.thumbnail-wrap {
  position: relative;
  width: 140px;
  min-width: 140px;
  height: 88px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--surface-2);
  flex-shrink: 0;
}

.thumbnail {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}

.thumbnail-wrap:hover .thumb-overlay { opacity: 1; }

.play-icon {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.2);
  backdrop-filter: blur(4px);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.duration-badge {
  position: absolute;
  bottom: 5px; right: 5px;
  padding: 2px 7px;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--white);
  letter-spacing: 0.02em;
}

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

.media-platform {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.media-title {
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--white);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  margin-bottom: 8px;
}

.media-meta {
  font-size: 0.78rem;
  color: var(--white-40);
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ── Quality Selector ── */
.quality-section { margin-bottom: 20px; }

.section-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--white-40);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.quality-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quality-btn {
  padding: 7px 16px;
  font-size: 0.83rem;
  font-weight: 600;
  color: var(--white-60);
  background: var(--surface-1);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
  letter-spacing: 0.01em;
}

.quality-btn:hover {
  color: var(--white);
  border-color: var(--border-hover);
  background: var(--surface-2);
}

.quality-btn.active {
  color: var(--white);
  background: rgba(91,138,240,0.15);
  border-color: rgba(91,138,240,0.5);
  box-shadow: 0 0 12px rgba(91,138,240,0.2);
}

/* ── Action Buttons ── */
.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 11px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: -0.01em;
}

.action-btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(91,138,240,0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(91,138,240,0.4);
}

.btn-secondary {
  background: var(--surface-2);
  color: var(--white);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--surface-3);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--white-60);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--white);
  background: var(--surface-1);
  border-color: var(--border-hover);
}

.btn-danger:hover {
  color: var(--error);
  border-color: rgba(255,69,58,0.3);
  background: rgba(255,69,58,0.07);
}

/* ── Toast ── */
.toast {
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%) translateY(100%);
  padding: 10px 20px;
  background: rgba(30,30,30,0.95);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--white);
  backdrop-filter: blur(12px);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 10;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(calc(100% + 16px));
}

/* ── Platforms Section ── */
.platforms-section {
  padding: 80px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.15;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1rem;
  color: var(--white-60);
  max-width: 440px;
  margin: 0 auto;
}

.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

.platform-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 28px 20px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-slow);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.platform-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(255,255,255,0.05) 0%, transparent 65%);
  opacity: 0;
  transition: opacity var(--transition);
}

.platform-card:hover::before { opacity: 1; }

.platform-card:hover {
  border-color: var(--border-hover);
  background: var(--surface-2);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

.platform-icon-wrap {
  width: 64px; height: 64px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
  transition: all var(--transition);
}

.platform-card:hover .platform-icon-wrap {
  background: var(--surface-3);
  border-color: var(--border-hover);
  transform: scale(1.08);
}

.platform-icon { width: 32px; height: 32px; }

.platform-name {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: -0.02em;
}

.platform-desc {
  font-size: 0.75rem;
  color: var(--white-40);
}

/* ── How It Works ── */
.how-section {
  padding: 80px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0;
}

.step-card {
  padding: 32px 28px;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  transition: all var(--transition-slow);
}

.step-card:hover {
  background: var(--surface-2);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.step-connector {
  width: 60px;
  margin-top: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-connector::after {
  content: '';
  display: block;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--border), var(--accent), var(--border));
}

.step-number {
  font-size: 0.7rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
  opacity: 0.8;
}

.step-icon {
  width: 48px; height: 48px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.step-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--white-50, rgba(255,255,255,0.5));
  line-height: 1.55;
}

/* ── Features ── */
.features-section {
  padding: 40px 24px 80px;
  max-width: 1100px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2px;
  background: var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 24px 28px;
  background: var(--black);
  transition: background var(--transition);
}

.feature-item:hover { background: var(--surface-1); }

.feature-icon {
  width: 40px; height: 40px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.feature-title {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 3px;
}

.feature-desc {
  font-size: 0.82rem;
  color: var(--white-40);
  line-height: 1.5;
}

/* ── FAQ ── */
.faq-section {
  padding: 80px 24px;
  max-width: 760px;
  margin: 0 auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.faq-item {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item:hover { border-color: var(--border-hover); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover { color: var(--white-80); }

.faq-chevron {
  flex-shrink: 0;
  color: var(--white-40);
  transition: transform var(--transition);
}

.faq-question[aria-expanded="true"] .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

.faq-answer {
  padding: 0 24px 20px;
}

.faq-answer p {
  font-size: 0.88rem;
  color: var(--white-60);
  line-height: 1.65;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 24px 32px;
  background: var(--black-2);
  position: relative;
  z-index: 1;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  margin-bottom: 48px;
}

.footer-brand { max-width: 260px; }
.footer-tagline { margin-top: 12px; font-size: 0.85rem; color: var(--white-40); line-height: 1.55; }

.footer-links-group {
  display: flex;
  gap: 60px;
}

.footer-col-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--white-60);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 8px; }

.footer-link {
  font-size: 0.85rem;
  color: var(--white-40);
  transition: color var(--transition);
}

.footer-link:hover { color: var(--white); }

.footer-bottom {
  max-width: 1100px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p { font-size: 0.8rem; color: var(--white-30, rgba(255,255,255,0.3)); }
.footer-disclaimer { color: var(--white-20, rgba(255,255,255,0.2)) !important; }

/* ── Offline Banner ── */
.offline-banner {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(20,20,20,0.96);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.83rem;
  font-weight: 500;
  color: var(--white-80);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
  animation: fadeSlideUp 0.4s ease;
  white-space: nowrap;
}

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Intersection Observer Animations ── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ── Responsive ── */
@media (max-width: 900px) {
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .step-connector {
    width: auto;
    height: 40px;
    margin: 0;
  }

  .step-connector::after {
    width: 1px;
    height: 100%;
    background: linear-gradient(180deg, var(--border), var(--accent), var(--border));
  }

  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-links-group { gap: 32px; }
}

@media (max-width: 640px) {
  .hero { padding: 72px 16px 60px; }
  .hero-title { font-size: 2rem; }
  .hero-sub { font-size: 0.95rem; }

  .downloader-card { padding: 18px; border-radius: var(--radius-lg); }

  .media-preview { flex-direction: column; }
  .thumbnail-wrap { width: 100%; min-width: auto; height: 180px; }

  .nav-links { display: none; }

  .platforms-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: 1fr; }

  .footer-links-group { flex-wrap: wrap; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }

  .action-buttons { gap: 8px; }
  .action-btn { padding: 10px 16px; font-size: 0.82rem; }
}

@media (max-width: 380px) {
  .platforms-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 1.8rem; }
}

/* ── Focus Visible ── */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ── Selection ── */
::selection { background: rgba(91,138,240,0.3); color: var(--white); }

/* ── Print ── */
@media print { .bg-orbs, .nav { display: none; } }