/* App shell — extends landing page theme */
:root {
  --bg: #FFF8F0;
  --bg-alt: #F5EDE2;
  --fg: #1A1A1A;
  --fg-muted: #5C5C5C;
  --accent: #1B4332;
  --accent-light: #2D6A4F;
  --amber: #F4A261;
  --amber-dark: #E07B3A;
  --white: #FFFFFF;
  --border: #E5DDD3;
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --danger: #DC2626;
  --danger-bg: #FEF2F2;
  --success: #16A34A;
  --success-bg: #F0FDF4;
  --warning: #F59E0B;
  --warning-bg: #FFFBEB;
}

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

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--fg);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* App nav */
.app-nav {
  background: var(--accent);
  padding: 0 48px;
  display: flex;
  align-items: center;
  gap: 32px;
  height: 60px;
}
.app-nav-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
}
.app-nav-logo span { color: var(--amber); }

.app-nav-links {
  display: flex;
  gap: 4px;
  flex: 1;
}

.app-nav-links a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 6px;
  transition: background 0.15s;
}
.app-nav-links a:hover { background: rgba(255,255,255,0.1); color: var(--white); }
.app-nav-links a.active {
  background: rgba(255,255,255,0.15);
  color: var(--white);
}

.app-nav-back {
  margin-left: auto;
  font-size: 13px;
}
.app-nav-back a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
}
.app-nav-back a:hover { color: var(--white); }

/* Page */
.app-page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 48px;
}
.app-page-header {
  margin-bottom: 40px;
}
.app-page-title {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 900;
  color: var(--accent);
  margin-bottom: 6px;
}
.app-page-sub {
  font-size: 15px;
  color: var(--fg-muted);
}

/* Stat cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.stat-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}
.stat-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  font-weight: 600;
  margin-bottom: 8px;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-sub {
  font-size: 13px;
  color: var(--fg-muted);
}
.stat-card--amber .stat-value { color: var(--amber-dark); }
.stat-card--green .stat-value { color: var(--success); }
.stat-card--danger .stat-value { color: var(--danger); }

/* Alert banners */
.alert-banner {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 24px;
  border-radius: 10px;
  margin-bottom: 16px;
  position: relative;
}
.alert-banner--danger {
  background: var(--danger-bg);
  border: 1px solid #FECACA;
}
.alert-banner--warning {
  background: var(--warning-bg);
  border: 1px solid #FDE68A;
}
.alert-banner--success {
  background: var(--success-bg);
  border: 1px solid #BBF7D0;
}
.alert-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}
.alert-banner--danger .alert-icon { background: #FEE2E2; color: var(--danger); }
.alert-banner--warning .alert-icon { background: #FEF3C7; color: var(--warning); }
.alert-banner--success .alert-icon { background: #DCFCE7; color: var(--success); }

.alert-content { flex: 1; }
.alert-title {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 4px;
}
.alert-meta {
  font-size: 13px;
  color: var(--fg-muted);
}
.alert-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.85; }
.btn-primary {
  background: var(--accent);
  color: var(--white);
}
.btn-secondary {
  background: var(--white);
  color: var(--accent);
  border: 1px solid var(--border);
}
.btn-amber {
  background: var(--amber);
  color: var(--accent);
}
.btn-sm { padding: 5px 12px; font-size: 13px; }
.btn-danger {
  background: var(--danger);
  color: var(--white);
}
.btn-success {
  background: var(--success);
  color: var(--white);
}

/* Table */
.data-table {
  width: 100%;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}
.data-table th {
  background: var(--bg-alt);
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--fg-muted);
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  vertical-align: middle;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg); }

/* Star rating */
.stars {
  display: inline-flex;
  gap: 2px;
  font-size: 16px;
  color: var(--amber);
}
.star-empty { color: var(--border); }

/* Badge */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.badge-danger { background: #FEE2E2; color: var(--danger); }
.badge-success { background: #DCFCE7; color: var(--success); }
.badge-warning { background: #FEF3C7; color: #92400E; }
.badge-muted { background: var(--bg-alt); color: var(--fg-muted); }

/* Forms */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--fg);
}
.form-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: var(--font-body);
  background: var(--white);
  color: var(--fg);
  transition: border-color 0.15s;
}
.form-input:focus {
  outline: none;
  border-color: var(--accent);
}
.form-textarea {
  min-height: 100px;
  resize: vertical;
}

/* Cards */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}
.card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
}

/* AI response box */
.response-box {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-top: 16px;
  min-height: 120px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--fg);
}

/* Section divider */
.section-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 20px;
}

/* Two column layout */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--fg-muted);
}
.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.4;
}
.empty-state h3 {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--accent);
  margin-bottom: 8px;
}
.empty-state p { font-size: 14px; }

@media (max-width: 768px) {
  .app-nav { padding: 0 24px; }
  .app-page { padding: 24px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col { grid-template-columns: 1fr; }
}