/* ============================================================
   Themis IA — Global Styles
   Dark theme, professional, accessible
   ============================================================ */

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

:root {
  /* Colors — dark navy palette */
  --bg-primary: #0B1026;
  --bg-secondary: #111827;
  --bg-card: #1a2236;
  --bg-card-hover: #1f2a42;
  --bg-input: #0f1629;
  --border: #2a3550;
  --border-focus: #38C6D8;

  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #38C6D8;

  --accent: #38C6D8;
  --accent-hover: #1FA5B6;
  --accent-glow: rgba(56, 198, 216, 0.25);

  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #38C6D8;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-brand: 'Michroma', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;

  /* Spacing */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 20px var(--accent-glow);
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;

}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--text-accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }

/* --- Layout --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-sm { max-width: 640px; margin: 0 auto; padding: 0 24px; }
.container-md { max-width: 900px; margin: 0 auto; padding: 0 24px; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.gap-4 { gap: 32px; }
.flex-1 { flex: 1; }

.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; color: var(--text-primary); }
h1 { font-size: 2.5rem; letter-spacing: -0.02em; }
h2 { font-size: 1.875rem; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.1rem; }

.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-muted { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-accent { color: var(--text-accent); }
.text-center { text-align: center; }
.font-mono { font-family: var(--font-mono); }
.font-bold { font-weight: 700; }
.uppercase { text-transform: uppercase; letter-spacing: 0.05em; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  color: white;
  border-color: var(--accent);
}
.btn-primary:hover { background: var(--accent-hover); box-shadow: var(--shadow-glow); }

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-secondary:hover { border-color: var(--text-secondary); background: var(--bg-card); }

.btn-danger {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}
.btn-danger:hover { background: #dc2626; }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
  padding: 8px 12px;
}
.btn-ghost:hover { color: var(--text-primary); background: var(--bg-card); }

.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

/* --- Forms --- */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.form-input.error { border-color: var(--danger); }
.form-error { font-size: 0.8rem; color: var(--danger); margin-top: 4px; }
.form-help { font-size: 0.8rem; color: var(--text-muted); margin-top: 4px; }

select.form-input {
  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'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

textarea.form-input { resize: vertical; min-height: 100px; }

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:hover { border-color: var(--border-focus); box-shadow: var(--shadow-md); }
.card-header { margin-bottom: 16px; }
.card-title { font-size: 1.1rem; font-weight: 700; }
.card-subtitle { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }

/* --- Badges --- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success { background: rgba(34,197,94,0.15); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger { background: rgba(239,68,68,0.15); color: var(--danger); }
.badge-info { background: rgba(6,182,212,0.15); color: var(--info); }
.badge-accent { background: var(--accent-glow); color: var(--accent); }

/* --- Tables --- */
.table-wrap { overflow-x: auto; border-radius: var(--radius-md); border: 1px solid var(--border); }

table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: left;
  padding: 10px 14px;
  border-bottom: 2px solid var(--border);
  position: sticky;
  top: 0;
}
td { padding: 10px 14px; border-bottom: 1px solid var(--border); }
tr:hover td { background: var(--bg-card-hover); }

/* --- Navbar --- */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.navbar-brand .logo {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.navbar-brand .logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.navbar-brand .brand-text {
  font-family: var(--font-brand);
  font-size: 1rem;
  letter-spacing: 0.05em;
}

.navbar-brand .brand-text .ia {
  color: var(--accent);
}

.navbar-nav { display: flex; gap: 4px; }
.navbar-nav a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all 0.2s;
}
.navbar-nav a:hover { color: var(--text-primary); background: var(--bg-card); }
.navbar-nav a.active { color: var(--text-accent); background: var(--accent-glow); }

/* --- Sidebar --- */
.sidebar {
  width: 260px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 16px;
  overflow-y: auto;
  flex-shrink: 0;
}

.sidebar-section { margin-bottom: 24px; }
.sidebar-title {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  padding: 0 8px;
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}
.sidebar-item:hover { color: var(--text-primary); background: var(--bg-card); }
.sidebar-item.active { color: var(--text-accent); background: var(--accent-glow); }
.sidebar-item .count {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: 2px 8px;
  border-radius: 999px;
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  max-width: 500px;
  width: 90%;
  box-shadow: var(--shadow-lg);
}
.modal-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 16px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 24px; }

/* --- Toast / Notifications --- */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  animation: slideIn 0.3s ease;
  max-width: 400px;
}

.toast-success { background: #065f46; color: #a7f3d0; border: 1px solid #059669; }
.toast-error { background: #7f1d1d; color: #fca5a5; border: 1px solid #dc2626; }
.toast-info { background: #1e3a5f; color: #93c5fd; border: 1px solid #3b82f6; }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* --- Loading --- */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10,14,26,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: inherit;
  z-index: 10;
}

/* --- Tabs --- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 24px; }
.tab {
  padding: 10px 18px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.tab:hover { color: var(--text-primary); }
.tab.active { color: var(--text-accent); border-bottom-color: var(--accent); }

.tab-content { display: none; }
.tab-content.active { display: block; }

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state .icon { font-size: 3rem; margin-bottom: 16px; opacity: 0.5; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }
  h3 { font-size: 1.1rem; }
  .sidebar { display: none; }
  .navbar-nav { display: none; }
  .btn-lg { padding: 12px 20px; font-size: 0.9rem; }
  .card { padding: 16px; }
  .form-input { padding: 8px 12px; font-size: 0.85rem; }
  .table-wrap { font-size: 0.8rem; }
  th, td { padding: 6px 10px; }
  .modal { padding: 20px; margin: 16px; }
  .tabs { overflow-x: auto; flex-wrap: nowrap; }
  .tab { white-space: nowrap; padding: 8px 14px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.2rem; }
  .container { padding: 0 12px; }
  .btn { padding: 8px 14px; font-size: 0.8rem; }
  .btn-lg { padding: 10px 16px; }
  .card { padding: 12px; border-radius: var(--radius-md); }
  .form-group { margin-bottom: 14px; }
  .badge { font-size: 0.65rem; padding: 2px 8px; }
}

/* --- Scrollbar --- */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border) var(--bg-primary);
}
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* --- Selection --- */
::selection { background: var(--accent); color: white; }

/* --- Print --- */
@media print {
  body { background: white; color: black; }
  .navbar, .sidebar, .btn { display: none; }
}