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

:root {
  --bg: #0f0f0f;
  --card-bg: #1a1a2e;
  --accent: #e94560;
  --accent-hover: #ff6b81;
  --text: #eee;
  --text-secondary: #aaa;
  --border: #333;
  --success: #2ecc71;
  --yt-red: #ff0000;
  --ig-purple: #833ab4;
  --ig-pink: #c13584;
  --ig-orange: #e1306c;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 16px;
}

.container {
  max-width: 480px;
  margin: 0 auto;
}

.header {
  text-align: center;
  padding: 20px 0 12px;
}

.header h1 {
  font-size: 24px;
  margin-bottom: 4px;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 14px;
}

/* ===== Tabs ===== */
.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  padding: 4px;
  background: var(--card-bg);
  border-radius: 14px;
}

.tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
}

.tab .tab-icon {
  font-size: 18px;
}

.tab:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

.tab.active[data-tab="youtube"] {
  background: rgba(255, 0, 0, 0.15);
  color: #ff4444;
  box-shadow: 0 2px 8px rgba(255, 0, 0, 0.1);
}

.tab.active[data-tab="instagram"] {
  background: linear-gradient(135deg, rgba(131, 58, 180, 0.2), rgba(193, 53, 132, 0.2));
  color: #e1306c;
  box-shadow: 0 2px 8px rgba(193, 53, 132, 0.1);
}

/* ===== Tab content ===== */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Search ===== */
.search-block {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.search-block input {
  flex: 1;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
}

.search-block input:focus {
  border-color: var(--accent);
}

.search-btn {
  padding: 12px 18px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 17px;
  cursor: pointer;
  transition: background 0.2s;
  min-width: 50px;
}

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

.search-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.hint {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 16px;
  padding-left: 4px;
  opacity: 0.7;
}

/* ===== Source badges ===== */
.source-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 12px;
}

.yt-badge {
  background: rgba(255, 0, 0, 0.15);
  color: #ff4444;
}

.ig-badge {
  background: linear-gradient(135deg, rgba(131, 58, 180, 0.2), rgba(193, 53, 132, 0.2));
  color: #e1306c;
}

/* ===== Errors / Loading ===== */
.error {
  background: rgba(255, 68, 68, 0.15);
  color: #ff6b6b;
  border: 1px solid rgba(255, 68, 68, 0.3);
  padding: 12px 16px;
  border-radius: 12px;
  margin-bottom: 16px;
  font-size: 14px;
}

.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  color: var(--text-secondary);
}

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Video info (YouTube) ===== */
.video-info {
  margin-bottom: 16px;
}

.video-card {
  background: var(--card-bg);
  border-radius: 16px;
  overflow: hidden;
  margin-bottom: 20px;
}

.thumbnail {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  display: block;
}

.video-details {
  padding: 16px;
}

.video-details h2 {
  font-size: 16px;
  line-height: 1.3;
  margin-bottom: 8px;
}

.channel {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 4px;
}

.duration {
  color: var(--text-secondary);
  font-size: 13px;
}

.video-info h3 {
  font-size: 16px;
  margin-bottom: 12px;
}

.formats-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.format-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  font-size: 15px;
  cursor: pointer;
  transition: all 0.2s;
}

.format-btn:hover {
  border-color: var(--accent);
  background: #1a1a3e;
}

.format-btn:active {
  transform: scale(0.98);
}

.format-btn .quality {
  font-weight: 600;
}

.format-btn .size {
  color: var(--text-secondary);
  font-size: 13px;
}

/* ===== Instagram ===== */
.instagram-media {
  margin-bottom: 16px;
}

.ig-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ig-items h3 {
  font-size: 16px;
  margin-bottom: 4px;
  margin-top: 4px;
}

.ig-download-btn {
  border-color: var(--ig-pink) !important;
  background: linear-gradient(135deg, #405de6, #833ab4, #c13584, #e1306c, #fd1d1d) !important;
  color: #fff !important;
}

.ig-download-btn:hover {
  opacity: 0.9;
  border-color: var(--ig-orange) !important;
}

.ig-download-all {
  border-color: var(--ig-pink) !important;
  background: linear-gradient(135deg, #833ab4, #c13584) !important;
  color: #fff !important;
}

.ig-download-all:hover {
  opacity: 0.9;
}

/* ===== Result ===== */
.result {
  text-align: center;
  padding: 24px;
  background: var(--card-bg);
  border-radius: 16px;
}

.result p {
  font-size: 16px;
  margin-bottom: 12px;
}

.download-btn {
  display: inline-block;
  padding: 14px 32px;
  background: var(--success);
  color: white;
  text-decoration: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.download-btn:hover {
  opacity: 0.9;
}

.file-size {
  color: var(--text-secondary);
  font-size: 13px;
  margin-top: 8px;
}

.new-search-btn {
  display: block;
  width: 100%;
  margin-top: 16px;
  padding: 12px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-secondary);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
}

.new-search-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}

/* ===== Download progress ===== */
.downloading-block {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 16px;
}

.progress-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text);
  font-size: 15px;
}

.progress-bar-container {
  width: 100%;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-details {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
}