:root {
  --bg: #0a0a1a;
  --card-bg: #16213e;
  --accent: #d4a574;
  --text: #ffffff;
  --text-secondary: #888888;
  --text-tertiary: #666666;
  --border: #333333;
  --input-bg: #0d1117;
  --font: -apple-system, PingFang SC, Microsoft YaHei, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#app {
  flex: 1;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Header */
.header {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  padding: 10px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
}

.header-back {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}

.header-back:hover {
  text-decoration: underline;
}

.header-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}

/* Search bar */
.search-bar {
  padding: 20px 24px 0;
  max-width: 960px;
  margin: 0 auto;
}

.search-input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 15px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
}

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

.search-input::placeholder {
  color: var(--text-tertiary);
}

/* Layout */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 24px;
}

/* Card grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

@media (max-width: 1023px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 639px) {
  .card-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--card-bg);
  padding: 16px;
  border-radius: 8px;
  border-left: 3px solid var(--accent);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(212, 165, 116, 0.15);
}

.card-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.card-meta {
  font-size: 12px;
  color: var(--text-secondary);
}

.card-stats {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 8px;
}

/* Report list */
.report-list {
  background: var(--card-bg);
  border-radius: 8px;
  padding: 4px 0;
}

.report-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  font-size: 13px;
  transition: background 0.1s;
}

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

.report-item:hover {
  background: rgba(212, 165, 116, 0.08);
}

.report-item-name {
  color: var(--text);
}

.report-item-date {
  color: var(--text-secondary);
  font-size: 12px;
  white-space: nowrap;
}

.report-more {
  text-align: center;
  padding: 12px;
  color: var(--text-tertiary);
  font-size: 12px;
}

/* Report viewer (iframe) */
.report-viewer {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 38px - 28px); /* header + footer */
}

.report-toolbar {
  background: var(--card-bg);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
}

.report-toolbar-title {
  font-size: 13px;
  color: var(--text);
}

.report-toolbar .badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 8px;
}

.report-toolbar .badge-normal {
  background: #27ae60;
  color: #fff;
}

.report-open-new {
  color: var(--accent);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}

.report-iframe {
  flex: 1;
  width: 100%;
  border: none;
}

/* States and utilities */
#loading {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  color: var(--text-secondary);
  font-size: 14px;
}

.no-results {
  text-align: center;
  padding: 40px;
  color: var(--text-secondary);
  font-size: 14px;
}

.entity-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.entity-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.entity-count {
  font-size: 12px;
  color: var(--text-secondary);
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 7px 24px;
  border-top: 1px solid var(--border);
  background: var(--card-bg);
  flex-shrink: 0;
  line-height: 1.8;
}

.footer-icp a {
  color: var(--text-tertiary);
  font-size: 11px;
  text-decoration: none;
}

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 12px;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-sep {
  color: var(--text-tertiary);
  margin: 0 6px;
}

/* ─── Request Form ─────────────────────────────────── */

.form-container {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px;
}

.form-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 28px 24px;
  border: 1px solid var(--border);
}

.form-group {
  margin-bottom: 22px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 6px;
}

.form-label.optional {
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.2s;
  box-sizing: border-box;
}

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

.form-input::placeholder {
  color: var(--text-tertiary);
}

.form-row {
  display: flex;
  gap: 10px;
}

.form-row .form-input {
  flex: 1;
}

.form-select {
  width: 220px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  cursor: pointer;
}

.form-select:focus {
  border-color: var(--accent);
}

.form-textarea {
  width: 100%;
  min-height: 80px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  resize: vertical;
  box-sizing: border-box;
}

.form-textarea:focus {
  border-color: var(--accent);
}

/* ─── Chip Group ───────────────────────────────────── */

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
  transition: all 0.15s;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-secondary);
}

.chip:hover {
  border-color: var(--accent);
  color: var(--text);
}

.chip.selected {
  background: rgba(212, 165, 116, 0.12);
  border-color: var(--accent);
  color: var(--accent);
}

/* ─── Form Hint ────────────────────────────────────── */

.form-hint {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-top: 4px;
}

/* ─── Form Actions ─────────────────────────────────── */

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.btn-reset {
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 14px;
  font-family: var(--font);
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  transition: all 0.15s;
}

.btn-reset:hover {
  border-color: var(--text-secondary);
  color: var(--text);
}

.btn-submit {
  padding: 10px 28px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  background: var(--accent);
  border: none;
  color: #1a1a2e;
  transition: all 0.15s;
}

.btn-submit:hover {
  filter: brightness(1.15);
}

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

/* ─── Form Error ───────────────────────────────────── */

.form-error {
  background: rgba(212, 165, 116, 0.1);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 10px 14px;
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 16px;
  display: none;
}

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

/* ─── Success Page ─────────────────────────────────── */

.success-container {
  max-width: 480px;
  margin: 80px auto;
  text-align: center;
  padding: 24px;
}

.success-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.success-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.success-message {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.success-request-id {
  font-size: 12px;
  color: var(--text-tertiary);
  background: var(--card-bg);
  padding: 6px 12px;
  border-radius: 4px;
  display: inline-block;
  margin-bottom: 24px;
}

/* ─── Header button ────────────────────────────────── */

.header-btn {
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent);
  transition: all 0.15s;
}

.header-btn:hover {
  background: var(--accent);
  color: #1a1a2e;
}

/* ─── Welcome Page (/show) ──────────────────────── */

.welcome-container {
  max-width: 520px;
  margin: 60px auto 80px;
  text-align: center;
  padding: 56px 40px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow:
    0 4px 6px rgba(0, 0, 0, 0.04),
    0 10px 30px rgba(0, 0, 0, 0.08),
    0 20px 60px rgba(0, 0, 0, 0.05);
}

.welcome-emoji {
  font-size: 52px;
  margin-bottom: 8px;
  animation: welcomeBounce 2s ease-in-out infinite;
}

@keyframes welcomeBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.welcome-message {
  font-size: 46px;
  font-weight: 800;
  background: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 60%, #F9CA24 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 10px;
  letter-spacing: 6px;
}

.welcome-sub {
  font-size: 13px;
  color: #636E72;
  letter-spacing: 3px;
  margin-bottom: 20px;
}

.welcome-divider {
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, #FF6B6B, #FF8E53, #F9CA24);
  border-radius: 2px;
  margin: 0 auto 24px;
  opacity: 0.7;
}

.welcome-desc {
  font-size: 15px;
  color: #636E72;
  line-height: 1.8;
}

.welcome-desc strong {
  color: #FF6B6B;
}

.welcome-btn {
  display: inline-block;
  margin-top: 24px;
  padding: 10px 28px;
  border: 2px solid #FF6B6B;
  border-radius: 50px;
  color: #FF6B6B;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  cursor: pointer;
  background: transparent;
  font-family: inherit;
}

.welcome-btn:hover {
  background: linear-gradient(135deg, #FF6B6B, #FF8E53);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
  transform: translateY(-1px);
}

/* ─── Mobile ───────────────────────────────────────── */

@media (max-width: 639px) {
  .form-row {
    flex-direction: column;
    gap: 10px;
  }
  .form-select {
    width: 100%;
  }
}

/* ─── View Badge ───────────────────────────────────── */

.view-badge {
  color: var(--text-tertiary);
  font-size: 12px;
  white-space: nowrap;
  margin-left: 10px;
}

.report-item-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

/* ─── Stats Gate (Auth) ────────────────────────────── */

.stats-gate {
  max-width: 440px;
  margin: 80px auto;
  padding: 24px;
}

.stats-gate-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 32px 28px;
  border: 1px solid var(--border);
  text-align: center;
}

.stats-gate-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.stats-gate-desc {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.stats-key-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
  text-align: center;
  margin-bottom: 12px;
  box-sizing: border-box;
}

.stats-key-input:focus {
  border-color: var(--accent);
}

.stats-gate-error {
  background: rgba(212, 165, 116, 0.1);
  border: 1px solid var(--accent);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--accent);
  font-size: 13px;
  margin-bottom: 12px;
}

.stats-gate-card .btn-submit {
  width: 100%;
}

/* ─── Stats Panel ──────────────────────────────────── */

.stats-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 24px 40px;
}

.header-btn-logout {
  margin-left: auto;
}

/* Overview Cards */
.stats-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

@media (max-width: 639px) {
  .stats-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stats-card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 20px 16px;
  text-align: center;
  border: 1px solid var(--border);
}

.stats-card-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}

.stats-card-label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* Section */
.stats-section {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 20px 24px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
}

.stats-section-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 16px;
}

/* Chart */
.chart-wrapper {
  width: 100%;
  overflow-x: auto;
}

.stats-chart {
  display: block;
  width: 100%;
  height: 180px;
}

.stats-chart rect {
  fill: var(--accent);
  transition: opacity 0.15s;
}

.stats-chart rect:hover {
  opacity: 0.7;
}

.chart-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 6px;
  padding: 0 2px;
}

.chart-label {
  font-size: 10px;
  color: var(--text-tertiary);
  text-align: center;
  min-width: 28px;
}

/* Top Table */
.stats-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.stats-table th {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stats-table td {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(51, 51, 51, 0.4);
  color: var(--text);
}

.stats-table tr:last-child td {
  border-bottom: none;
}

.stats-table tr:hover td {
  background: rgba(212, 165, 116, 0.05);
}

.stats-rank {
  font-weight: 700;
  color: var(--accent);
  width: 40px;
}

.stats-path {
  max-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: monospace;
  font-size: 12px;
}

.stats-views {
  text-align: right;
  font-weight: 600;
  color: var(--accent);
  width: 80px;
}

.stats-empty {
  text-align: center;
  padding: 24px;
  color: var(--text-tertiary);
  font-size: 13px;
}

/* Zero-visit reports */
.zero-count {
  font-weight: 400;
  font-size: 12px;
  color: var(--text-secondary);
}

.zero-meta {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-bottom: 12px;
  padding: 6px 10px;
  background: rgba(212, 165, 116, 0.06);
  border-radius: 6px;
  border-left: 3px solid var(--accent);
}