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

:root {
  --bg: #050810;
  --surface: #0b0f1a;
  --surface2: #111828;
  --surface3: #1a2235;
  --border: rgba(59,130,246,0.12);
  --border2: rgba(59,130,246,0.25);
  --accent: #3b82f6;
  --accent-bright: #60a5fa;
  --accent-dark: #1d4ed8;
  --accent2: #06b6d4;
  --text: #e8f0fe;
  --text-muted: #5a7099;
  --text-dim: #8ba3c7;
  --radius: 14px;
  --radius-sm: 8px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Space Grotesk', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

.bg-orbs { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.12;
  animation: float 14s ease-in-out infinite;
}
.orb-1 { width: 600px; height: 600px; background: #1d4ed8; top: -200px; left: -150px; animation-delay: 0s; }
.orb-2 { width: 450px; height: 450px; background: #06b6d4; bottom: -150px; right: -100px; animation-delay: 5s; }
.orb-3 { width: 350px; height: 350px; background: #3b82f6; top: 35%; left: 55%; animation-delay: 9s; opacity: 0.07; }

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-25px) scale(1.04); }
}

.header {
  position: relative; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 40px;
  border-bottom: 1px solid var(--border);
  background: rgba(5,8,16,0.8);
  backdrop-filter: blur(12px);
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.logo span { color: var(--accent-bright); }

.platforms { display: flex; gap: 8px; }
.badge {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.8px;
  padding: 4px 10px;
  border-radius: 100px;
  text-transform: uppercase;
}
.badge.yt  { background: rgba(59,130,246,0.1); color: #60a5fa; border: 1px solid rgba(59,130,246,0.2); }
.badge.sc  { background: rgba(6,182,212,0.1); color: #22d3ee; border: 1px solid rgba(6,182,212,0.2); }
.badge.tt  { background: rgba(56,189,248,0.1); color: #7dd3fc; border: 1px solid rgba(56,189,248,0.2); }

.main {
  position: relative; z-index: 10;
  max-width: 740px;
  margin: 0 auto;
  padding: 64px 24px 80px;
}

.hero { text-align: center; margin-bottom: 52px; }

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2.2rem, 5.5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 18px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--accent-bright), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1rem;
  color: var(--text-dim);
  max-width: 420px;
  margin: 0 auto 38px;
  line-height: 1.7;
}

.search-box {
  display: flex;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 7px 7px 7px 20px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.search-box:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.url-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.92rem;
  min-width: 0;
}
.url-input::placeholder { color: var(--text-muted); }

.fetch-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 22px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  display: flex; align-items: center; gap: 8px;
  transition: background 0.2s, transform 0.1s;
  white-space: nowrap;
}
.fetch-btn:hover { background: var(--accent-bright); }
.fetch-btn:active { transform: scale(0.97); }

.error-msg {
  margin-top: 12px;
  color: #f87171;
  font-size: 0.86rem;
  text-align: center;
}

.preview-card {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  overflow: hidden;
  animation: fadeUp 0.35s ease;
}

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

.preview-inner { display: flex; }

.preview-thumb-wrap { position: relative; flex-shrink: 0; width: 260px; }
.preview-thumb { width: 100%; height: 100%; object-fit: cover; display: block; }
.preview-platform-badge {
  position: absolute;
  top: 10px; left: 10px;
  background: rgba(5,8,16,0.75);
  color: var(--accent-bright);
  font-size: 0.68rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 100px;
  backdrop-filter: blur(6px);
  border: 1px solid rgba(59,130,246,0.25);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.preview-info {
  padding: 26px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preview-uploader { font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.8px; font-weight: 600; }
.preview-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.preview-duration { font-size: 0.78rem; color: var(--text-muted); }

.format-section { margin-top: 8px; }
.format-label { font-size: 0.72rem; color: var(--text-muted); margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.8px; font-weight: 600; }
.format-list { display: flex; flex-wrap: wrap; gap: 7px; }

.format-btn {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 13px;
  cursor: pointer;
  transition: all 0.15s;
}
.format-btn:hover { border-color: var(--accent); color: var(--accent-bright); }
.format-btn.selected { background: rgba(59,130,246,0.15); border-color: var(--accent); color: var(--accent-bright); }
.format-btn.audio.selected { background: rgba(6,182,212,0.12); border-color: var(--accent2); color: #22d3ee; }

.download-btn {
  margin-top: auto;
  display: flex; align-items: center; gap: 8px; justify-content: center;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 22px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, opacity 0.2s;
}
.download-btn:hover:not(:disabled) { background: var(--accent-bright); }
.download-btn:active:not(:disabled) { transform: scale(0.97); }
.download-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.progress-section { animation: fadeUp 0.35s ease; }
.progress-card {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
}
.progress-label { font-size: 0.9rem; color: var(--text-dim); margin-bottom: 22px; font-weight: 500; }
.progress-bar-wrap {
  background: var(--surface3);
  border-radius: 100px;
  height: 6px;
  overflow: hidden;
  margin-bottom: 14px;
}
.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent-bright), var(--accent2));
  border-radius: 100px;
  transition: width 0.4s ease;
}
.progress-percent {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-bright);
  letter-spacing: -1px;
}

.done-section { animation: fadeUp 0.35s ease; }
.done-card {
  background: var(--surface);
  border: 1px solid rgba(6,182,212,0.25);
  border-radius: var(--radius);
  padding: 48px 36px;
  text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.done-icon {
  width: 60px; height: 60px;
  background: rgba(6,182,212,0.1);
  color: var(--accent2);
  border: 1px solid rgba(6,182,212,0.3);
  border-radius: 50%;
  font-size: 1.5rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
}
.done-text {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.file-link-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-radius: var(--radius-sm);
  padding: 12px 26px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  transition: background 0.2s, transform 0.1s;
}
.file-link-btn:hover { background: var(--accent-bright); }
.file-link-btn:active { transform: scale(0.97); }

.reset-btn {
  background: transparent;
  border: 1px solid var(--border2);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  padding: 9px 18px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.84rem;
  font-weight: 500;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}
.reset-btn:hover { border-color: var(--accent); color: var(--accent-bright); }

.footer {
  position: relative; z-index: 10;
  text-align: center;
  padding: 22px;
  color: var(--text-muted);
  font-size: 0.75rem;
  border-top: 1px solid var(--border);
  letter-spacing: 0.3px;
}

@media (max-width: 600px) {
  .header { padding: 14px 18px; }
  .platforms { display: none; }
  .main { padding: 40px 16px 60px; }
  .preview-inner { flex-direction: column; }
  .preview-thumb-wrap { width: 100%; height: 190px; }
  .preview-info { padding: 18px; }
  .search-box { padding: 6px 6px 6px 14px; }
}

/* ---- ADS ---- */
.ad-banner {
  position: relative; z-index: 10;
  display: flex; justify-content: center; align-items: center;
  padding: 10px;
  background: rgba(11,15,26,0.8);
  border-bottom: 1px solid var(--border);
}
.ad-middle {
  margin: 20px 0;
  display: flex; justify-content: center;
}
.ad-after-download {
  margin-top: 24px;
  display: flex; justify-content: center;
}
.ad-placeholder {
  background: var(--surface2);
  border: 1px dashed var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 12px 32px;
  text-align: center;
  letter-spacing: 0.5px;
}