/* ============================
   厭世咖啡 — Cynical Coffee CSS
   Dark espresso theme
   ============================ */

/* --- Google Fonts + Fontshare --- */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+TC:wght@300;400;500;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Colors */
  --bg: #1a1210;
  --surface: #3d2b1f;
  --card: #2a1f17;
  --accent: #c8956c;
  --accent-dim: #a0714f;
  --text: #e8ddd0;
  --text-muted: #9e8f80;
  --text-dim: #6b5a4e;
  --green: #7fb069;
  --red: #d4564a;
  --amber: #e8a03a;
  --border: rgba(200, 149, 108, 0.15);
  --border-strong: rgba(200, 149, 108, 0.3);
  --google-blue: #1a0dab;
  --google-green: #006621;
  --google-gray: #545454;

  /* Typography */
  --font-display: 'Cabinet Grotesk', 'Noto Sans TC', sans-serif;
  --font-body: 'Satoshi', 'Noto Sans TC', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Transitions */
  --transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  flex-direction: column;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
}

.display-font {
  font-family: var(--font-display);
}

code, .mono {
  font-family: var(--font-mono);
  font-size: 0.875em;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: var(--surface);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: var(--accent-dim); }

/* ============================
   HEADER / NAV
   ============================ */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0 var(--space-xl);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  height: 60px;
}

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}

.logo-svg {
  width: 36px;
  height: 36px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-zh {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.logo-en {
  font-family: var(--font-body);
  font-size: 0.65rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Tab Navigation */
.tab-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex: 1;
}

.tab-btn {
  position: relative;
  padding: var(--space-xs) var(--space-md);
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.875rem;
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.tab-btn:hover {
  color: var(--text);
  background: rgba(200, 149, 108, 0.08);
}

.tab-btn.active {
  color: var(--accent);
  background: rgba(200, 149, 108, 0.12);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: var(--space-md);
  right: var(--space-md);
  height: 2px;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
}

.tab-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--surface);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-dim);
  transition: all var(--transition);
}

.tab-btn.active .tab-number {
  background: var(--accent);
  color: var(--bg);
}

/* Header actions */
.header-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.badge-beta {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 3px;
  background: rgba(127, 176, 105, 0.15);
  color: var(--green);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ============================
   MAIN CONTENT
   ============================ */
.main-content {
  flex: 1;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  padding: var(--space-xl);
}

/* Tool panels */
.tool-panel {
  display: none;
}

.tool-panel.active {
  display: block;
}

/* Tool header */
.tool-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.tool-title {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: var(--space-xs);
}

.tool-subtitle {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Two-column layout */
.tool-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: var(--space-xl);
  align-items: start;
}

@media (max-width: 900px) {
  .tool-layout {
    grid-template-columns: 1fr;
  }
}

/* ============================
   INPUT COMPONENTS
   ============================ */
.input-panel {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.field-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.field-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.field-label .zh {
  color: var(--text);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: none;
  letter-spacing: 0;
}

.field-hint {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-style: italic;
  margin-top: 2px;
}

input[type="text"],
input[type="url"],
textarea,
select {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: none;
}

input[type="text"]:focus,
input[type="url"]:focus,
textarea:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.12);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-dim);
  font-style: italic;
}

textarea {
  min-height: 80px;
}

/* Counter badges */
.counter-row {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
}

.counter-badge {
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: 500;
  transition: all var(--transition);
}

.counter-badge.safe { background: rgba(127, 176, 105, 0.15); color: var(--green); }
.counter-badge.warn { background: rgba(232, 160, 58, 0.15); color: var(--amber); }
.counter-badge.over { background: rgba(212, 86, 74, 0.15); color: var(--red); }
.counter-badge.neutral { background: var(--card); color: var(--text-muted); }

/* Device toggle */
.device-toggle {
  display: flex;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 3px;
  gap: 3px;
}

.device-btn {
  flex: 1;
  padding: var(--space-xs) var(--space-md);
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.device-btn.active {
  background: var(--surface);
  color: var(--accent);
}

/* Checkboxes */
.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
  padding: 6px var(--space-sm);
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.checkbox-item:hover { background: rgba(200, 149, 108, 0.06); }

.checkbox-item input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  user-select: none;
}

.checkbox-label .zh { color: var(--text); }

/* Two columns */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}
.btn-primary:hover {
  background: #d4a07a;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(200, 149, 108, 0.3);
}

.btn-ghost {
  background: var(--surface);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: var(--border-strong);
}

.btn-sm {
  padding: 4px var(--space-sm);
  font-size: 0.78rem;
}

/* ============================
   PREVIEW PANEL
   ============================ */
.preview-panel {
  position: sticky;
  top: 80px;
}

.panel-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  overflow: hidden;
}

.panel-card-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.panel-card-title::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ============================
   SERP PREVIEW
   ============================ */
.serp-preview {
  background: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  font-family: arial, sans-serif;
}

/* Google bar decorative */
.google-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid #e8eaed;
}

.google-logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -1px;
}

.google-logo .g-blue { color: #4285F4; }
.google-logo .g-red { color: #EA4335; }
.google-logo .g-yellow { color: #FBBC05; }
.google-logo .g-green { color: #34A853; }

.google-search-bar {
  flex: 1;
  height: 36px;
  border: 1px solid #dfe1e5;
  border-radius: 18px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  gap: var(--space-sm);
  color: #5f6368;
  font-size: 0.85rem;
}

/* SERP Result */
.serp-result {
  font-family: arial, sans-serif;
}

.serp-site-info {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
}

.serp-favicon {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #e8eaed;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  color: #5f6368;
  flex-shrink: 0;
}

.serp-domain {
  font-size: 0.8rem;
  color: #202124;
  font-weight: 400;
}

.serp-breadcrumb {
  font-size: 0.8rem;
  color: #4d5156;
}

.serp-title {
  font-size: 1.1rem;
  color: var(--google-blue);
  cursor: pointer;
  line-height: 1.3;
  margin-bottom: 4px;
  font-weight: 400;
  text-decoration: none;
  display: block;
}

.serp-title:hover { text-decoration: underline; }

.serp-desc {
  font-size: 0.85rem;
  color: var(--google-gray);
  line-height: 1.58;
}

/* Stars */
.serp-stars {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 4px 0;
  font-size: 0.8rem;
  color: #202124;
}

.stars-visual {
  color: #f5a623;
  font-size: 0.9rem;
  letter-spacing: -1px;
}

.star-count { color: var(--google-blue); }
.star-votes { color: var(--google-gray); }

/* FAQ */
.serp-faq {
  margin-top: var(--space-sm);
  border: 1px solid #e8eaed;
  border-radius: 4px;
}

.faq-item {
  padding: 8px 12px;
  border-bottom: 1px solid #e8eaed;
  cursor: pointer;
}
.faq-item:last-child { border-bottom: none; }

.faq-question {
  font-size: 0.85rem;
  color: #202124;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-arrow {
  color: #5f6368;
  font-size: 0.7rem;
  transition: transform 0.2s;
}

.faq-item.open .faq-arrow { transform: rotate(180deg); }

.faq-answer {
  font-size: 0.8rem;
  color: var(--google-gray);
  margin-top: 6px;
  display: none;
  line-height: 1.5;
}

.faq-item.open .faq-answer { display: block; }



/* Mobile SERP adjustment */
.serp-preview.mobile .serp-title {
  font-size: 1rem;
}

/* ============================
   OG PREVIEW CARDS
   ============================ */
.og-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

@media (max-width: 1100px) {
  .og-grid { grid-template-columns: 1fr; }
}

.og-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, sans-serif;
  border: 1px solid rgba(255,255,255,0.1);
}

.og-platform-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  opacity: 0.7;
}

/* Facebook */
.og-facebook {
  background: #fff;
  color: #1c1e21;
}
.og-facebook .og-platform-label { background: #1877f2; color: #fff; opacity: 1; }
.og-facebook .og-img-wrap {
  width: 100%;
  aspect-ratio: 1200/630;
  background: #e4e6ea;
  overflow: hidden;
}
.og-facebook .og-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.og-facebook .og-body { padding: 8px 10px 10px; border-top: 4px solid #1877f2; }
.og-facebook .og-site { font-size: 0.7rem; color: #606770; text-transform: uppercase; margin-bottom: 2px; }
.og-facebook .og-title { font-size: 0.9rem; font-weight: 700; color: #1c1e21; margin-bottom: 4px; line-height: 1.3; }
.og-facebook .og-desc { font-size: 0.78rem; color: #606770; line-height: 1.4; }

/* LINE */
.og-line {
  background: #fff;
  color: #111;
}
.og-line .og-platform-label { background: #00c300; color: #fff; opacity: 1; }
.og-line .og-body { display: flex; gap: 10px; padding: 10px; }
.og-line .og-thumb {
  width: 80px;
  height: 80px;
  flex-shrink: 0;
  background: #e8e8e8;
  border-radius: 4px;
  overflow: hidden;
}
.og-line .og-thumb img { width: 100%; height: 100%; object-fit: cover; }
.og-line .og-text { flex: 1; min-width: 0; }
.og-line .og-site { font-size: 0.68rem; color: #999; margin-bottom: 2px; }
.og-line .og-title { font-size: 0.85rem; font-weight: 700; color: #111; margin-bottom: 3px; line-height: 1.3; }
.og-line .og-desc { font-size: 0.75rem; color: #666; line-height: 1.35; }

/* Twitter/X */
.og-twitter {
  background: #000;
  color: #e7e9ea;
  border-color: rgba(255,255,255,0.12) !important;
}
.og-twitter .og-platform-label { background: #111; color: #e7e9ea; opacity: 1; border-bottom: 1px solid rgba(255,255,255,0.12); }
.og-twitter .og-img-wrap {
  width: 100%;
  aspect-ratio: 1200/630;
  background: #1a1a1a;
  overflow: hidden;
  border-radius: 0;
}
.og-twitter .og-img-wrap img { width: 100%; height: 100%; object-fit: cover; }
.og-twitter .og-body { padding: 8px 10px 10px; }
.og-twitter .og-site { font-size: 0.72rem; color: #71767b; margin-bottom: 2px; }
.og-twitter .og-title { font-size: 0.88rem; font-weight: 700; color: #e7e9ea; margin-bottom: 3px; }
.og-twitter .og-desc { font-size: 0.78rem; color: #8b98a5; line-height: 1.4; }

/* Discord */
.og-discord {
  background: #313338;
  color: #dbdee1;
  border-color: rgba(255,255,255,0.08) !important;
}
.og-discord .og-platform-label { background: #5865f2; color: #fff; opacity: 1; }
.og-discord .og-inner {
  padding: 10px 12px;
  border-left: 4px solid #5865f2;
  margin: 8px;
  background: #2b2d31;
  border-radius: 0 4px 4px 0;
}
.og-discord .og-meta { font-size: 0.72rem; color: #b5bac1; margin-bottom: 4px; }
.og-discord .og-site { font-size: 0.72rem; font-weight: 600; color: #00b0f4; margin-bottom: 4px; }
.og-discord .og-title { font-size: 0.9rem; font-weight: 600; color: #00b0f4; margin-bottom: 3px; }
.og-discord .og-desc { font-size: 0.8rem; color: #dbdee1; line-height: 1.4; }
.og-discord .og-img-wrap {
  width: 100%;
  aspect-ratio: 1200/630;
  background: #1e1f22;
  overflow: hidden;
  border-radius: 4px;
  margin-top: 8px;
}
.og-discord .og-img-wrap img { width: 100%; height: 100%; object-fit: cover; }

/* OG code block */
.code-block {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-top: var(--space-md);
}

.code-block pre {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--green);
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.6;
}

.copy-btn {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  padding: 3px 10px;
  font-size: 0.72rem;
}

.copy-btn.copied {
  background: rgba(127, 176, 105, 0.2);
  color: var(--green);
}

/* OG controls */
.og-controls {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

/* ============================
   THREADS TOOL
   ============================ */
.threads-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.threads-input-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.threads-textarea {
  min-height: 160px;
  font-size: 0.95rem;
  line-height: 1.7;
}

.threads-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-sm);
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.threads-char-count {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Toggle switch */
.toggle-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  cursor: pointer;
}

.toggle-switch {
  position: relative;
  width: 36px;
  height: 20px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--surface);
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: all var(--transition);
}

.toggle-switch input:checked ~ .toggle-track { background: rgba(127,176,105,0.2); border-color: var(--green); }
.toggle-switch input:checked ~ .toggle-thumb { left: 21px; background: var(--green); }

.toggle-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Analysis grid */
.analysis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-md);
}

.analysis-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--transition);
}

.analysis-card:hover { border-color: var(--border-strong); }

.analysis-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-md);
}

.analysis-card-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.analysis-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 3px;
}

.badge-green { background: rgba(127, 176, 105, 0.15); color: var(--green); }
.badge-amber { background: rgba(232, 160, 58, 0.15); color: var(--amber); }
.badge-red { background: rgba(212, 86, 74, 0.15); color: var(--red); }
.badge-neutral { background: var(--surface); color: var(--text-muted); }

.analysis-value {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-xs);
}

.analysis-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Coffee cup score */
.msi-card {
  grid-column: 1 / -1;
  text-align: center;
}

.msi-score-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.coffee-cup-meter {
  position: relative;
  width: 80px;
  height: 100px;
  margin: 0 auto;
}

.msi-score-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.msi-label {
  font-size: 1rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Coffee cups emoji score */
.coffee-cups {
  font-size: 1.2rem;
  letter-spacing: 2px;
  display: flex;
  gap: 2px;
  flex-wrap: wrap;
  justify-content: center;
}

.cup-filled { opacity: 1; }
.cup-empty { opacity: 0.2; }

/* Progress bar */
.score-bar {
  width: 100%;
  height: 6px;
  background: var(--surface);
  border-radius: 3px;
  overflow: hidden;
  margin-top: var(--space-xs);
}

.score-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(to right, var(--red), var(--amber), var(--green));
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Detected patterns */
.pattern-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: var(--space-sm);
}

.pattern-tag {
  font-size: 0.72rem;
  padding: 2px 8px;
  border-radius: 3px;
  background: rgba(200, 149, 108, 0.12);
  color: var(--accent);
  border: 1px solid rgba(200, 149, 108, 0.2);
}

/* Warning alert */
.alert-warning {
  background: rgba(212, 86, 74, 0.1);
  border: 1px solid rgba(212, 86, 74, 0.3);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  font-size: 0.8rem;
  color: #e88a84;
  margin-top: var(--space-sm);
  line-height: 1.5;
}

/* Suggestions */
.suggestions-card {
  grid-column: 1 / -1;
}

.suggestion-item {
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.suggestion-item:last-child { border-bottom: none; }

.suggestion-icon {
  font-size: 0.9rem;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Rewrite card */
.rewrite-card {
  grid-column: 1 / -1;
  border: 2px solid rgba(127, 176, 105, 0.3) !important;
  background: linear-gradient(135deg, var(--card) 0%, rgba(127, 176, 105, 0.05) 100%) !important;
}

.rewrite-note {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
  line-height: 1.5;
}

.rewrite-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 400px;
  overflow-y: auto;
  margin-bottom: var(--space-md);
  font-family: var(--font-body);
}

.btn-copy-rewrite {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
  justify-content: center;
}

.btn-copy-rewrite.copied {
  background: rgba(127, 176, 105, 0.2) !important;
  color: var(--green) !important;
  border-color: var(--green) !important;
}

.rewrite-changelog {
  margin-top: var(--space-sm);
}

/* Placeholder state */
.placeholder-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  color: var(--text-dim);
  font-size: 0.85rem;
  gap: var(--space-sm);
  text-align: center;
}

.placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.3;
}

/* ============================
   OG IMAGE PLACEHOLDER
   ============================ */
.og-img-placeholder {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--surface) 0%, var(--card) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-dim);
  font-style: italic;
}

/* ============================
   FOOTER
   ============================ */
.site-footer {
  margin-top: auto;
  background: var(--card);
  border-top: 1px solid var(--border);
  padding: var(--space-lg) var(--space-xl);
  text-align: center;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-tagline {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
  font-style: italic;
}

.footer-tagline span {
  color: var(--accent);
}

.footer-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xs);
}

.footer-links a {
  color: var(--amber);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.2s;
}

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

.footer-sep {
  color: var(--text-dim);
  font-size: 0.82rem;
}

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

/* ============================
   UTILITY CLASSES
   ============================ */
.text-accent { color: var(--accent); }
.text-green { color: var(--green); }
.text-red { color: var(--red); }
.text-amber { color: var(--amber); }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

/* Section label */
.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: var(--space-sm);
}

/* divider */
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-md) 0;
}

/* Keyword chip */
.keyword-chip {
  display: inline-block;
  background: rgba(200, 149, 108, 0.1);
  color: var(--accent);
  border: 1px solid rgba(200, 149, 108, 0.2);
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  margin: 1px;
}

/* Empty preview state */
.empty-preview {
  opacity: 0.4;
  pointer-events: none;
  user-select: none;
}

/* Smooth transitions for counters */
.counter-transition {
  transition: color var(--transition), background var(--transition);
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 768px) {
  .site-header { padding: 0 var(--space-md); }
  .header-inner { height: auto; flex-wrap: wrap; padding: var(--space-sm) 0; gap: var(--space-sm); }
  .tab-nav { order: 3; width: 100%; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; -ms-overflow-style: none; }
  .tab-nav::-webkit-scrollbar { display: none; }
  .tab-btn { font-size: 0.78rem; padding: var(--space-xs) 10px; white-space: nowrap; flex-shrink: 0; }
  .header-actions { margin-left: 0; }
  .logo-en { display: none; }
  .main-content { padding: var(--space-md); }
  .tool-layout { grid-template-columns: 1fr; }
  .og-grid { grid-template-columns: 1fr; }
  .analysis-grid { grid-template-columns: 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .preview-panel { position: static; }
}

/* Animated highlight on active */
@keyframes slideIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.tool-panel.active {
  animation: slideIn 0.25s ease-out;
}

/* Cursor blink in logo */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.cursor-blink {
  animation: blink 1s step-end infinite;
}

/* ============================
   TOOL 4: 標題分析器
   ============================ */

/* Dimension bar row */
.headline-dim-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
}

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

.headline-dim-label {
  width: 120px;
  flex-shrink: 0;
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

.headline-dim-bar-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.headline-dim-bar {
  flex: 1;
  height: 8px;
  background: var(--surface);
  border-radius: 4px;
  overflow: hidden;
}

.headline-dim-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.headline-dim-bar-fill.fill-green { background: var(--green); }
.headline-dim-bar-fill.fill-amber { background: var(--amber); }
.headline-dim-bar-fill.fill-red { background: var(--red); }

.headline-dim-score {
  width: 48px;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text);
}

/* Headline tips */
.headline-tip {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.headline-tip:last-child { border-bottom: none; }

/* ============================
   TOOL 5: Schema 產生器
   ============================ */

/* Schema dynamic form pairs */
.schema-pair {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
  position: relative;
}

.schema-pair-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-sm);
}

.schema-pair-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.schema-remove-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1rem;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.schema-remove-btn:hover {
  color: var(--red);
  background: rgba(212, 86, 74, 0.1);
}

.schema-add-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: var(--space-sm);
  background: var(--card);
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-md);
  color: var(--accent);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: var(--space-sm);
}

.schema-add-btn:hover {
  background: rgba(200, 149, 108, 0.08);
  border-color: var(--accent);
}

/* Schema Google preview styles */
.schema-faq-preview {
  margin-top: var(--space-sm);
  border: 1px solid #e8eaed;
  border-radius: 4px;
  font-family: arial, sans-serif;
}

.schema-faq-preview .faq-item {
  padding: 8px 12px;
  border-bottom: 1px solid #e8eaed;
}

.schema-faq-preview .faq-item:last-child { border-bottom: none; }

.schema-faq-preview .faq-q {
  font-size: 0.85rem;
  color: #202124;
  font-weight: 500;
}

.schema-faq-preview .faq-a {
  font-size: 0.8rem;
  color: #545454;
  margin-top: 4px;
  line-height: 1.5;
}

.schema-howto-preview {
  margin-top: var(--space-sm);
  font-family: arial, sans-serif;
}

.schema-howto-step {
  display: flex;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid #e8eaed;
}

.schema-howto-step:last-child { border-bottom: none; }

.schema-howto-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: #1a73e8;
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.schema-howto-text {
  font-size: 0.82rem;
  color: #202124;
  line-height: 1.4;
}

.schema-howto-text strong {
  display: block;
  margin-bottom: 2px;
}

.schema-howto-text .step-desc {
  color: #545454;
  font-size: 0.78rem;
}

/* ============================
   TOOL 6: 可讀性分析器
   ============================ */

.readability-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

/* Metric row */
.readability-metric {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
}

.readability-metric:last-child { border-bottom: none; }

.readability-light {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 3px;
}

.readability-light.light-green { background: var(--green); box-shadow: 0 0 6px rgba(127, 176, 105, 0.4); }
.readability-light.light-yellow { background: var(--amber); box-shadow: 0 0 6px rgba(232, 160, 58, 0.4); }
.readability-light.light-red { background: var(--red); box-shadow: 0 0 6px rgba(212, 86, 74, 0.4); }

.readability-metric-body {
  flex: 1;
}

.readability-metric-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}

.readability-metric-value {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  margin-bottom: 2px;
}

.readability-metric-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.readability-tip {
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.readability-tip:last-child { border-bottom: none; }

/* ============================
   INPUT TYPE DATE STYLING
   ============================ */
input[type="date"] {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

input[type="date"]:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.12);
}

input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(0.7);
  cursor: pointer;
}

/* Select dropdown styling */
select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12' fill='%239e8f80'%3E%3Cpath d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
  cursor: pointer;
}

select:focus {
  border-color: var(--accent-dim);
  box-shadow: 0 0 0 3px rgba(200, 149, 108, 0.12);
}