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

:root {
  --bg: #0a0a0f;
  --card-bg: #14141f;
  --border: #1e1e30;
  --text: #e4e4ec;
  --text-dim: #8888a0;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --green: #22c55e;
  --red: #ef4444;
  --radius: 12px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* ── Fixed Top Bar ── */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 10px 12px;
}

.input-wrap {
  position: relative;
  max-width: 480px;
  margin: 0 auto;
}

.input-wrap input {
  width: 100%;
  height: 42px;
  padding: 0 88px 0 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--card-bg);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  text-overflow: ellipsis;
  transition: border-color .2s;
}

.input-wrap input:focus { border-color: var(--accent); }
.input-wrap input::placeholder { color: var(--text-dim); }

.btn-inline-paste,
.btn-inline-fetch {
  position: absolute;
  top: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-dim);
  cursor: pointer;
  transition: color .15s, background .15s;
  z-index: 2;
}

.btn-inline-paste { right: 6px; }
.btn-inline-fetch { right: 44px; }
.btn-inline-paste svg, .btn-inline-fetch svg { pointer-events: none; }

.btn-inline-paste:hover, .btn-inline-fetch:hover {
  color: var(--accent);
  background: rgba(59,130,246,.1);
}
.btn-inline-paste:active svg, .btn-inline-fetch:active svg { transform: scale(.85); }
.btn-inline-fetch:hover { color: var(--green); background: rgba(34,197,94,.1); }

.container {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 80px 16px 60px;
  position: relative;
}

.error-card {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.2);
  border-radius: 10px;
  padding: 12px 14px;
  color: var(--red);
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 16px;
}

.progress-bar {
  position: absolute;
  top: 80px;
  left: 16px;
  right: 16px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(59,130,246,.12);
  border: 1px solid rgba(59,130,246,.25);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 12px;
  color: var(--accent);
  overflow: hidden;
  backdrop-filter: blur(8px);
}

.progress-fill {
  position: absolute;
  inset: 0;
  width: 0%;
  background: rgba(59,130,246,.1);
  transition: width .3s ease;
}

.progress-bar span { position: relative; z-index: 1; }

.result-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  animation: fadeUp .25s ease;
  margin-bottom: 16px;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 10px;
}

.badge-wrap { position: relative; }

.quality-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(59,130,246,.1);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  user-select: none;
  transition: background .15s;
}

.quality-badge:hover { background: rgba(59,130,246,.2); }

.more-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: rgba(59,130,246,.12);
  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  margin-left: 6px;
}

.res-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  background: #1a1a2e;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  z-index: 40;
  min-width: 200px;
  box-shadow: 0 8px 24px rgba(0,0,0,.5);
}

.res-dropdown-inner {
  display: flex;
  flex-direction: column;
}

.res-option {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: none;
  border-bottom: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: background .1s;
  text-align: left;
  width: 100%;
}

.res-option:last-child { border-bottom: none; }
.res-option:hover { background: rgba(59,130,246,.1); }
.res-option:active { background: rgba(59,130,246,.2); }
.res-option.selected {
  background: rgba(59,130,246,.15);
  border-left: 3px solid var(--accent);
}
.res-option.selected .res-quality { color: var(--accent); }

.res-option .res-quality { font-weight: 600; min-width: 40px; transition: color .15s; }
.res-option .res-dim { color: var(--text-dim); }
.res-option .res-size { margin-left: auto; color: var(--green); font-weight: 600; }

.btn-download {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: none;
  border-radius: 8px;
  background: var(--green);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: background .2s, transform .1s, opacity .2s;
  min-width: 100px;
  justify-content: center;
  flex-shrink: 0;
}

.btn-download:hover { background: #16a34a; }
.btn-download:active { transform: scale(.97); }
.btn-download:disabled { opacity: .8; }

.thumbnail-wrap {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  background: #000;
}

.thumb-skeleton {
  position: absolute;
  inset: 0;
  border-radius: 0;
  z-index: 1;
  transition: opacity .3s;
}

.thumb-skeleton.loaded {
  opacity: 0;
  pointer-events: none;
}

.thumbnail-img {
  width: 100%;
  display: block;
  max-height: 460px;
  object-fit: contain;
  background: #000;
  opacity: 0;
  transition: opacity .3s;
}

.thumbnail-img.loaded {
  opacity: 1;
}

.tweet-info { margin-top: 10px; }

.author { font-size: 12px; font-weight: 600; color: var(--accent); }

.tweet-text {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
}

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

/* ── Skeleton ── */
.skeleton {
  background: linear-gradient(90deg, var(--card-bg) 25%, #1e1e2e 50%, var(--card-bg) 75%);
  background-size: 200% 100%;
  border-radius: 6px;
  animation: shimmer 1.5s ease-in-out infinite;
}

.skeleton-badge { width: 80px; height: 22px; border-radius: 999px; }
.skeleton-btn   { width: 100px; height: 30px; border-radius: 8px; }
.skeleton-thumb { width: 100%; height: 220px; border-radius: 10px; margin-top: 10px; }
.skeleton-author { width: 120px; height: 14px; margin-top: 10px; }
.skeleton-text   { width: 70%; height: 14px; margin-top: 8px; }

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.version-tag {
  position: fixed;
  bottom: 8px;
  right: 10px;
  font-size: 10px;
  color: var(--text-dim);
  opacity: .4;
  user-select: none;
}

.hidden { display: none !important; }

@media (max-width: 420px) {
  .container { padding-left: 12px; padding-right: 12px; }
  .top-bar { padding: 8px 10px; }
  .result-card { margin-bottom: 12px; }
  .error-card { margin-bottom: 12px; }
}