/* ============ RESET & BASE ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary: #083619;
  --primary-dark: #001f0a;
  --on-primary: #ffffff;
  --surface: #f9faf5;
  --surface-container: #edeee9;
  --surface-container-low: #f3f4ef;
  --on-surface: #1a1c19;
  --on-surface-variant: #414941;
  --outline: #727970;
  --outline-variant: #c1c9bf;
  --secondary: #536349;
  --secondary-container: #d3e6c4;
  --error: #ba1a1a;
  --error-container: #ffdad6;
  --accent: #a2d2a8;
  --font: 'Public Sans', -apple-system, sans-serif;
  --radius: 0.5rem;
  --radius-sm: 0.25rem;
}

html { font-size: 14px; }
body {
  font-family: var(--font);
  color: var(--on-surface);
  background: var(--surface);
  line-height: 1.5;
  min-height: 100vh;
}

/* ============ LOGIN ============ */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--primary-dark);
}
.login-card {
  background: white;
  padding: 48px 40px;
  border-radius: var(--radius);
  width: 100%;
  max-width: 380px;
  text-align: center;
}
.login-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.02em;
}
.login-subtitle {
  font-size: 14px;
  color: var(--on-surface-variant);
  margin-bottom: 32px;
}
.login-card input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 14px;
  margin-bottom: 12px;
  outline: none;
  transition: border-color 0.2s;
}
.login-card input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(8,54,25,0.08);
}
.error-text { color: var(--error); font-size: 13px; margin-top: 8px; }
.success-text { color: var(--primary); font-size: 13px; margin-top: 8px; }

/* ============ BUTTONS ============ */
.btn-primary {
  width: 100%;
  padding: 10px 20px;
  background: var(--primary);
  color: var(--on-primary);
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-primary:hover { background: var(--primary-dark); }
.btn-ghost {
  background: none;
  border: 1px solid var(--outline-variant);
  color: var(--on-surface-variant);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 13px;
  cursor: pointer;
  width: 100%;
}
.btn-ghost:hover { background: var(--surface-container); }

/* ============ APP SHELL ============ */
.app {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 220px;
  background: var(--primary-dark);
  color: var(--on-primary);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.sidebar-brand {
  padding: 24px 20px 32px;
}
.brand-text {
  font-size: 24px;
  font-weight: 700;
  display: block;
}
.brand-sub {
  font-size: 12px;
  opacity: 0.6;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.nav-list {
  list-style: none;
  flex: 1;
}
.nav-item {
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: all 0.15s;
  color: rgba(255,255,255,0.65);
}
.nav-item:hover {
  background: rgba(255,255,255,0.06);
  color: white;
}
.nav-item.active {
  border-left-color: var(--accent);
  color: white;
  background: rgba(255,255,255,0.08);
}
.nav-icon { margin-right: 10px; font-size: 10px; }
.sidebar-footer { padding: 20px; }

/* Main */
.main-content {
  flex: 1;
  padding: 32px;
  overflow-y: auto;
}
.page h2 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--primary-dark);
}

/* ============ STATS GRID ============ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.stat-card {
  background: white;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 20px;
}
.stat-card .stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--on-surface-variant);
  margin-bottom: 8px;
}
.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--primary);
}

/* ============ DATA TABLE ============ */
.toolbar {
  margin-bottom: 16px;
}
.toolbar input {
  padding: 8px 14px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 14px;
  width: 300px;
  outline: none;
}
.toolbar input:focus {
  border-color: var(--primary);
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: white;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--outline-variant);
}
.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--on-surface-variant);
  background: var(--surface-container-low);
  border-bottom: 1px solid var(--outline-variant);
}
.data-table td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--surface-container);
}
.data-table tr:nth-child(even) { background: var(--surface-container-low); }
.data-table tr:hover { background: var(--surface-container); }

.chip {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.chip-premium { background: var(--secondary-container); color: var(--primary-dark); }
.chip-free { background: var(--surface-container); color: var(--on-surface-variant); }

.pagination {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  align-items: center;
  font-size: 13px;
  color: var(--on-surface-variant);
}
.pagination button {
  padding: 6px 12px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  background: white;
  cursor: pointer;
  font-family: var(--font);
  font-size: 13px;
}
.pagination button:disabled { opacity: 0.4; cursor: default; }

/* ============ LEGAL ============ */
.legal-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
.legal-card {
  background: white;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius);
  padding: 24px;
  text-decoration: none;
  color: var(--on-surface);
  transition: border-color 0.2s;
}
.legal-card:hover { border-color: var(--primary); }
.legal-card h3 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.legal-card p { font-size: 13px; color: var(--on-surface-variant); }
.hint-text {
  font-size: 13px;
  color: var(--on-surface-variant);
  line-height: 1.6;
}
.hint-text code {
  background: var(--surface-container);
  padding: 2px 6px;
  border-radius: 3px;
  font-size: 12px;
}

/* ============ FORMS ============ */
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--on-surface-variant);
  margin-bottom: 6px;
}
.form-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 14px;
  resize: vertical;
  outline: none;
  line-height: 1.5;
}
.form-group textarea:focus {
  border-color: var(--primary);
}
#save-ai-btn { width: auto; padding: 10px 32px; }

/* ============ RESPONSIVE ============ */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .brand-text, .brand-sub, .nav-item span:not(.nav-icon) { display: none; }
  .nav-item { text-align: center; padding: 14px; border-left: none; }
  .main-content { padding: 20px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .legal-links { grid-template-columns: 1fr; }
  .toolbar input { width: 100%; }
}