/* =====================================================================
   Meta Tag Generator Pro — app.css
   Extends the shared design system (base.css). Colors derive from
   base.css CSS variables EXCEPT where deliberately replicating real
   brand mockup chrome (Google SERP colors, X/Twitter/Discord-style
   card chrome) — each such spot is called out with a comment below.
   ===================================================================== */

/* ---- Theme toggle icon swap (sun in dark, moon in light) ---- */
[data-theme="light"] .icon-sun { display: none; }
.icon-moon { display: none; }
[data-theme="light"] .icon-moon { display: inline; }

/* ===================== Layout ===================== */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 460px) minmax(0, 1fr);
  gap: var(--space-5);
  align-items: start;
}
.preview-col { min-width: 0; }

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}
.panel-title {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.preview-panel .panel-title { margin-bottom: var(--space-4); }

/* ===================== Form ===================== */
.form-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.field-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  font-size: 12px;
}
.counter { color: var(--text-muted); }
.counter--ok { color: var(--success); }
.counter--warn { color: var(--warning); }
.counter--danger { color: var(--danger); }

#fThemeColor {
  -webkit-appearance: none; appearance: none;
  width: 44px; height: 40px; padding: 3px;
  border: 1px solid var(--border); border-radius: var(--radius-md);
  background: var(--surface); cursor: pointer; flex: none;
}
#fThemeColor::-webkit-color-swatch-wrapper { padding: 0; }
#fThemeColor::-webkit-color-swatch { border: none; border-radius: 8px; }
#fThemeColorHex { max-width: 110px; }

/* ===================== Google SERP mockup =====================
   Google's search result chrome always renders on a white surface
   with fixed brand colors, regardless of a visiting site's own theme.
   These colors are intentionally hardcoded to match real Google SERP
   visual conventions, not sourced from base.css tokens. */
.google-preview {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  font-family: arial, sans-serif;
}
.google-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: 3px;
}
.google-favicon-wrap {
  width: 22px; height: 22px; border-radius: 50%;
  background: #f1f3f4; display: grid; place-items: center; flex: none; overflow: hidden;
}
.google-favicon { width: 100%; height: 100%; object-fit: cover; }
.google-favicon-wrap svg { width: 14px; height: 14px; color: #5f6368; }
.google-sitename { color: #202124; font-size: 14px; font-weight: 400; }
.google-breadcrumb { color: #4d5156; font-size: 12px; margin: 0 0 2px 30px; word-break: break-word; }
.google-title {
  display: block; color: #1a0dab; font-size: 20px; line-height: 1.3;
  margin: 0 0 3px; text-decoration: none; cursor: default;
  font-family: arial, sans-serif;
}
.google-title:hover { text-decoration: underline; color: #1a0dab; }
.google-desc { color: #4d5156; font-size: 14px; line-height: 1.55; margin: 0; }

/* ===================== Twitter / X card mockup =====================
   Real X cards use a bordered rounded container with a strict image /
   text ratio. Chrome (border radius, image ratio) matches X's real
   layout conventions; surface colors come from base.css tokens so the
   card still adapts to the app's own dark/light theme. */
.twitter-card {
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface-solid);
  display: flex;
  flex-direction: column;
}
.twitter-card[data-card="summary"] { flex-direction: row; }

.twitter-media {
  position: relative;
  background: var(--surface-3);
  overflow: hidden;
  flex: none;
}
.twitter-card[data-card="summary_large_image"] .twitter-media {
  width: 100%; aspect-ratio: 1.91 / 1;
}
.twitter-card[data-card="summary"] .twitter-media {
  width: 96px; height: 96px;
}
.twitter-media img { width: 100%; height: 100%; object-fit: cover; display: block; }

.twitter-body { padding: 10px 14px; min-width: 0; flex: 1; }
.twitter-domain { color: var(--text-muted); font-size: 13px; margin-bottom: 2px; }
.twitter-title { color: var(--text); font-size: 15px; font-weight: 700; line-height: 1.3; margin-bottom: 2px; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.twitter-desc { color: var(--text-muted); font-size: 14px; line-height: 1.35; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.twitter-card[data-card="summary"] .twitter-title,
.twitter-card[data-card="summary"] .twitter-desc { -webkit-line-clamp: 2; }

/* ===================== Generic link-preview card =====================
   Styled after Discord/Slack/iMessage rich-link embeds: a left accent
   bar and slightly tighter chrome than the Twitter card, to stay
   visually distinct while still theme-driven via base.css tokens. */
.link-card {
  border: 1px solid var(--border);
  border-left: 3px solid var(--brand-500);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--surface-2);
  display: flex;
  flex-direction: column;
}
.link-media {
  width: 100%;
  aspect-ratio: 1.91 / 1;
  background: var(--surface-3);
  position: relative;
  overflow: hidden;
  flex: none;
}
.link-media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.link-body { padding: 12px 14px; }
.link-domain { color: var(--text-muted); font-size: 12px; text-transform: uppercase; letter-spacing: .03em; margin-bottom: 4px; }
.link-title { color: var(--text); font-size: 15px; font-weight: 700; line-height: 1.3; margin-bottom: 4px; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.link-desc { color: var(--text-secondary); font-size: 13.5px; line-height: 1.45; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; }

/* Shared image fallback box */
.media-fallback {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: var(--text-muted); font-size: 13px; font-weight: 600; letter-spacing: .02em;
  background: var(--surface-3);
}

/* ===================== Generated snippet ===================== */
.snippet-panel { margin-top: var(--space-5); }
.theme-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 10px; border-radius: var(--radius-full);
  background: var(--surface-2); border: 1px solid var(--border);
  font-size: 12px; color: var(--text-secondary);
}
.theme-chip-swatch {
  width: 14px; height: 14px; border-radius: 50%;
  border: 1px solid var(--border-strong); flex: none;
}
.snippet-output {
  margin: 0;
  padding: var(--space-5);
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 13px;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  overflow-x: auto;
  color: var(--text-secondary);
}

/* ===================== Shortcuts modal table ===================== */
.shortcut-table { width: 100%; border-collapse: collapse; }
.shortcut-table td {
  padding: 10px 4px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}
.shortcut-table tr:last-child td { border-bottom: none; }
.shortcut-table td:last-child { text-align: right; white-space: nowrap; }
.shortcut-table kbd + kbd { margin-left: 4px; }

/* ===================== Responsive ===================== */
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .panel-head { flex-direction: column; align-items: flex-start; }
  .twitter-card[data-card="summary"] .twitter-media { width: 76px; height: 76px; }
}
@media (max-width: 460px) {
  .google-title { font-size: 18px; }
  .theme-chip { display: none; }
}