/* ========================================
   Download HTML — Styles
   ======================================== */

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-tertiary: #1a1a1a;
  --bg-hover: #222222;
  --border: #2a2a2a;
  --border-light: #333333;
  --text-primary: #e5e5e5;
  --text-secondary: #999999;
  --text-muted: #666666;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-dim: rgba(59, 130, 246, 0.15);
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
  --radius: 6px;
  --radius-sm: 4px;
}

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

html {
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
}

.app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---- Header ---- */

.header {
  padding: 32px 0 0;
  position: relative;
}

.header-top {
  margin-bottom: 20px;
}

.logo {
  font-family: var(--font-mono);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.tagline {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 4px;
}

/* ---- URL Bar ---- */

.url-bar {
  display: flex;
  gap: 8px;
  align-items: stretch;
}

.url-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.15s;
}

.url-input-wrap:focus-within {
  border-color: var(--accent);
}

.url-prefix {
  padding: 0 2px 0 14px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  white-space: nowrap;
  user-select: none;
}

.url-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 12px 14px 12px 2px;
}

.url-input::placeholder {
  color: var(--text-muted);
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 12px 20px;
}

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

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

.btn-sm {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  padding: 6px 10px;
  font-size: 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.btn-sm:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.btn-sm.active {
  background: var(--accent-dim);
  color: var(--accent);
  border-color: var(--accent);
}

/* ---- Loading Bar ---- */

.loading-bar {
  height: 2px;
  background: transparent;
  margin-top: 8px;
  border-radius: 1px;
  overflow: hidden;
  position: relative;
}

.loading-bar.active {
  background: var(--bg-tertiary);
}

.loading-bar.active::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 30%;
  background: var(--accent);
  border-radius: 1px;
  animation: loading 1s ease-in-out infinite;
}

@keyframes loading {
  0% { left: -30%; }
  100% { left: 100%; }
}

/* ---- Error ---- */

.error-msg {
  display: none;
  padding: 12px 16px;
  margin-top: 16px;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: var(--radius);
  color: var(--red);
  font-size: 0.85rem;
}

.error-msg.visible {
  display: block;
}

/* ---- Empty State ---- */

.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}

.empty-state.hidden {
  display: none;
}

.empty-icon {
  font-family: var(--font-mono);
  font-size: 3rem;
  font-weight: 600;
  color: var(--border-light);
  margin-bottom: 16px;
}

/* ---- Results ---- */

.results {
  display: none;
  margin-top: 16px;
}

.results.visible {
  display: block;
}

/* ---- Toolbar ---- */

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: var(--radius) var(--radius) 0 0;
  gap: 8px;
}

.toolbar-left {
  flex: 1;
  min-width: 0;
}

.toolbar-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.toolbar-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
}

/* ---- Code Viewer ---- */

.code-viewer {
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  overflow: auto;
  max-height: 70vh;
  background: var(--bg-secondary);
}

.code-viewer pre {
  margin: 0;
  padding: 16px;
  background: var(--bg-secondary) !important;
  font-size: 0.82rem;
  line-height: 1.6;
  tab-size: 2;
}

.code-viewer code {
  font-family: var(--font-mono) !important;
  white-space: pre;
}

.code-viewer.wrap-on code {
  white-space: pre-wrap;
  word-break: break-all;
}

/* Override Prism line numbers */
.code-viewer pre.line-numbers {
  padding-left: 4.5em !important;
}

.code-viewer .line-numbers-rows {
  border-right: 1px solid var(--border) !important;
}

.code-viewer .line-numbers-rows > span::before {
  color: var(--text-muted) !important;
}

/* Prism token overrides to match dark theme */
.code-viewer .token.tag { color: #f97583; }
.code-viewer .token.attr-name { color: #b392f0; }
.code-viewer .token.attr-value { color: #9ecbff; }
.code-viewer .token.punctuation { color: #e1e4e8; }
.code-viewer .token.comment { color: #6a737d; }
.code-viewer .token.doctype { color: #6a737d; }
.code-viewer .token.prolog { color: #6a737d; }

/* ---- Panels ---- */

.panels {
  margin-top: 16px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-secondary);
  overflow: hidden;
}

.panel-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color 0.15s;
}

.panel-header:hover {
  color: var(--text-primary);
}

.panel-chevron {
  transition: transform 0.2s;
}

.panel.open .panel-chevron {
  transform: rotate(180deg);
}

.panel-body {
  display: none;
  padding: 0 14px 14px;
}

.panel.open .panel-body {
  display: block;
}

/* Panel content styles */

.meta-row {
  display: flex;
  gap: 8px;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  align-items: flex-start;
}

.meta-row:last-child {
  border-bottom: none;
}

.meta-key {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  min-width: 120px;
  flex-shrink: 0;
  padding-top: 1px;
}

.meta-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-primary);
  word-break: break-all;
  flex: 1;
  cursor: pointer;
  padding: 2px 4px;
  border-radius: 2px;
  transition: background 0.15s;
}

.meta-value:hover {
  background: var(--bg-hover);
}

.meta-value.copied {
  background: rgba(34, 197, 94, 0.15);
  color: var(--green);
}

.request-stat {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 0;
}

.request-stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.request-stat-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
}

.status-ok { color: var(--green); }
.status-redirect { color: var(--yellow); }
.status-error { color: var(--red); }

/* Asset list */

.asset-group {
  margin-bottom: 12px;
}

.asset-group:last-child {
  margin-bottom: 0;
}

.asset-group-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.asset-link {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-decoration: none;
  padding: 3px 0;
  word-break: break-all;
}

.asset-link:hover {
  text-decoration: underline;
}

.copy-all-btn {
  margin-top: 8px;
}

/* ---- FAQ ---- */

.faq {
  margin-top: 60px;
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

.faq h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.faq details {
  border-bottom: 1px solid var(--border);
}

.faq summary {
  padding: 14px 0;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq summary::before {
  content: '+';
  display: inline-block;
  width: 20px;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.faq details[open] summary::before {
  content: '\2212';
}

.faq p {
  padding: 0 0 14px 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ---- Footer ---- */

.footer {
  padding: 32px 0;
  text-align: center;
}

.footer p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

.footer a:hover {
  color: var(--text-primary);
}

/* ---- Toast ---- */

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 10px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 0.8rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s, transform 0.2s;
  pointer-events: none;
  z-index: 100;
}

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

/* ---- Responsive ---- */

@media (max-width: 768px) {
  .app {
    padding: 0 12px;
  }

  .header {
    padding-top: 20px;
  }

  .url-bar {
    flex-direction: column;
  }

  .btn-primary {
    justify-content: center;
  }

  .toolbar-right {
    flex-wrap: wrap;
  }

  .panels {
    grid-template-columns: 1fr;
  }

  .code-viewer {
    max-height: 50vh;
  }

  .meta-row {
    flex-direction: column;
    gap: 2px;
  }

  .meta-key {
    min-width: 0;
  }
}

@media (max-width: 480px) {
  .toolbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .toolbar-right {
    width: 100%;
    justify-content: flex-start;
  }
}