/* ═══════════════════════════════════════════════════════
   NOVA — Global Styles  v2.0
   Paleta: Morado / Violeta · Light & Dark mode
   ═══════════════════════════════════════════════════════ */

/* ── Fuentes ─────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;600;700;800&display=swap');

/* ── Variables ───────────────────────────────────────── */
:root {
  /* Colores principales */
  --primary:       #7c3aed;
  --primary-light: #a78bfa;
  --primary-dark:  #5b21b6;
  --primary-glow:  rgba(124,58,237,.18);

  /* Gradientes */
  --grad-primary: linear-gradient(135deg, #6d28d9 0%, #8b5cf6 50%, #a78bfa 100%);
  --grad-card:    linear-gradient(135deg, #7c3aed 0%, #9d6ef5 100%);

  /* Semánticos */
  --success:  #10b981;
  --warning:  #f59e0b;
  --danger:   #ef4444;
  --info:     #3b82f6;
  --pending:  #f59e0b;
  --accepted: #10b981;
  --rejected: #ef4444;

  /* Transición global */
  --trans: .22s cubic-bezier(.4,0,.2,1);

  /* Sombras */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.15);
  --shadow-xl:  0 20px 60px rgba(0,0,0,.20);
  --shadow-purple: 0 4px 20px rgba(124,58,237,.25);
}

/* ── Light theme (default) ───────────────────────────── */
body, body.light {
  --bg:       #f5f3ff;
  --bg2:      #ede9fe;
  --surface:  #ffffff;
  --surface2: #faf9ff;
  --border:   #e5e7eb;
  --border2:  #ddd6fe;
  --text:     #111827;
  --text2:    #4b5563;
  --text3:    #9ca3af;
  --nav-bg:   #ffffff;
  --sidebar:  #ffffff;
  --input-bg: #faf9ff;
  --hover:    #f5f3ff;
  --card-hover: #ede9fe;
  --overlay:  rgba(0,0,0,.45);
}

/* ── Dark theme ──────────────────────────────────────── */
body.dark {
  --bg:       #0f0b1a;
  --bg2:      #1a1330;
  --surface:  #1e1635;
  --surface2: #261e40;
  --border:   #2d2450;
  --border2:  #3d3060;
  --text:     #f3f0ff;
  --text2:    #c4b5fd;
  --text3:    #7c6fad;
  --nav-bg:   #1e1635;
  --sidebar:  #1a1330;
  --input-bg: #261e40;
  --hover:    #261e40;
  --card-hover: #2d2450;
  --overlay:  rgba(0,0,0,.65);
}

/* ── Transición sin parpadeo ─────────────────────────── */
body:not(.ready) * { transition: none !important; }

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background var(--trans), color var(--trans);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Tipografía ──────────────────────────────────────── */
h1,h2,h3,h4,h5,h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
}
p { color: var(--text2); }
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ── Scrollbar ───────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-light); }

/* ── Botones ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: 8px;
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--trans);
  white-space: nowrap;
  outline: none;
}
.btn:focus-visible { box-shadow: 0 0 0 3px var(--primary-glow); }
.btn-primary {
  background: var(--grad-primary);
  color: #fff;
  box-shadow: var(--shadow-purple);
}
.btn-primary:hover { filter: brightness(1.08); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(124,58,237,.35); }
.btn-primary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--text2);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--hover); color: var(--text); }

.btn-danger  { background: var(--danger);  color: #fff; }
.btn-danger:hover  { filter: brightness(1.1); }
.btn-success { background: var(--accepted); color: #fff; }
.btn-success:hover { filter: brightness(1.1); }

.btn-sm { padding: 6px 14px; font-size: .8rem; }
.btn-icon { padding: 8px; border-radius: 8px; }

/* ── Form controls ───────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: .85rem;
  font-weight: 500;
  color: var(--text2);
  margin-bottom: 6px;
}
.form-control, .form-select {
  width: 100%;
  padding: 10px 14px;
  background: var(--input-bg);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: .9rem;
  font-family: inherit;
  transition: border-color var(--trans), box-shadow var(--trans);
  outline: none;
}
.form-control:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.form-control::placeholder { color: var(--text3); }
textarea.form-control { resize: vertical; min-height: 100px; }

/* ── Cards ───────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--trans), transform var(--trans);
}
.card:hover { box-shadow: var(--shadow-md); }
.card-body { padding: 24px; }

/* ── Badges / Pills ──────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 600;
}
.badge-pending  { background: #fef3c7; color: #92400e; }
.badge-accepted { background: #d1fae5; color: #065f46; }
.badge-rejected { background: #fee2e2; color: #991b1b; }
.badge-purple   { background: var(--primary-glow); color: var(--primary); }
.badge-info     { background: #dbeafe; color: #1e40af; }

/* ── Tablas ──────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: 12px; border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; font-size: .875rem; }
thead th {
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: .8rem;
  color: var(--text3);
  text-transform: uppercase;
  letter-spacing: .04em;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--trans);
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--hover); }
tbody td { padding: 13px 16px; color: var(--text2); vertical-align: middle; }

/* ── Modales ─────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: var(--overlay);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 1000;
  opacity: 0; pointer-events: none;
  transition: opacity var(--trans);
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--surface);
  border-radius: 20px;
  box-shadow: var(--shadow-xl);
  width: 90%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(.97);
  transition: transform var(--trans);
  border: 1px solid var(--border);
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }
.modal-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-header h3 { font-size: 1.1rem; margin: 0; }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }
.modal-close {
  width: 32px; height: 32px;
  border-radius: 8px;
  border: none;
  background: var(--hover);
  color: var(--text2);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  transition: all var(--trans);
}
.modal-close:hover { background: var(--border); color: var(--text); }

/* ── Toasts ──────────────────────────────────────────── */
#toast-container {
  position: fixed; bottom: 24px; right: 24px;
  z-index: 9999;
  display: flex; flex-direction: column; gap: 10px;
  max-width: 340px;
}
.toast {
  padding: 12px 16px;
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid var(--primary);
  font-size: .875rem;
  color: var(--text);
  animation: slideIn .25s ease;
  display: flex; align-items: center; gap: 10px;
}
.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes slideOut { to { transform: translateX(100%); opacity: 0; } }
.toast.removing { animation: slideOut .25s ease forwards; }

/* ── Theme toggle ────────────────────────────────────── */
.theme-toggle {
  display: inline-flex; align-items: center;
  background: var(--hover);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
  width: fit-content;   /* ← no ocupa todo el ancho */
}
.theme-btn {
  width: 30px; height: 30px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: .9rem;
  background: transparent;
  color: var(--text3);
  transition: all var(--trans);
  display: flex; align-items: center; justify-content: center;
  padding: 0;
  line-height: 1;
}
.theme-btn.active { background: var(--surface); color: var(--primary); box-shadow: var(--shadow-sm); }

/* ── Loader / Spinner ────────────────────────────────── */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Upload dropzone ─────────────────────────────────── */
.dropzone {
  border: 2px dashed var(--border2);
  border-radius: 12px;
  padding: 28px;
  text-align: center;
  cursor: pointer;
  transition: all var(--trans);
  background: var(--hover);
  color: var(--text3);
}
.dropzone:hover, .dropzone.drag-over { border-color: var(--primary); background: var(--primary-glow); color: var(--primary); }
.dropzone i { font-size: 2rem; display: block; margin-bottom: 8px; }

/* ── Stat cards ──────────────────────────────────────── */
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 24px;
  display: flex; align-items: center; gap: 16px;
  transition: all var(--trans);
}
.stat-card:hover { box-shadow: var(--shadow-purple); transform: translateY(-2px); }
.stat-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.stat-icon.purple  { background: var(--primary-glow); color: var(--primary); }
.stat-icon.green   { background: #d1fae5; color: #065f46; }
.stat-icon.yellow  { background: #fef3c7; color: #92400e; }
.stat-icon.red     { background: #fee2e2; color: #991b1b; }
.stat-value { font-size: 1.8rem; font-weight: 800; font-family: 'Outfit',sans-serif; color: var(--text); line-height: 1; }
.stat-label { font-size: .8rem; color: var(--text3); margin-top: 2px; }

/* ── Sidebar ─────────────────────────────────────────── */
.sidebar {
  position: fixed; top: 0; left: 0; bottom: 0;
  width: 240px;
  background: var(--sidebar);
  border-right: 1px solid var(--border);
  z-index: 200;
  display: flex; flex-direction: column;
  transition: width var(--trans), transform var(--trans);
  overflow: hidden;
}
.sidebar.collapsed { width: 64px; }
.sidebar-logo {
  padding: 10px;
  display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--border);
  min-height: 80px;
}
.sidebar-logo img { width: 75px; height: 75px; object-fit: contain; flex-shrink: 0; margin-left: -10px;}
.sidebar-logo span { font-family: 'Outfit',sans-serif; font-weight: 800; font-size: 1.8rem; color: var(--primary); white-space: nowrap; }
.sidebar-nav { flex: 1; overflow-y: auto; padding: 12px 8px; }
.nav-link {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text2);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--trans);
  white-space: nowrap;
  text-decoration: none;
  border: none; background: none; width: 100%; text-align: left;
}
.nav-link:hover  { background: var(--hover); color: var(--text); }
.nav-link.active { background: var(--primary-glow); color: var(--primary); font-weight: 600; }
.nav-link i { width: 20px; text-align: center; font-size: 1rem; flex-shrink: 0; }
.nav-label { overflow: hidden; }
.sidebar.collapsed .nav-label, .sidebar.collapsed .sidebar-logo span { opacity: 0; width: 0; }
.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 999px;
  min-width: 18px;
  text-align: center;
}
.nav-badge:empty, .nav-badge[data-zero="true"] { display: none; }
.sidebar.collapsed .nav-badge { display: none; }

/* ── Main layout ─────────────────────────────────────── */
.main-layout {
  margin-left: 240px;
  min-height: 100vh;
  transition: margin-left var(--trans);
  display: flex; flex-direction: column;
}
.main-layout.collapsed { margin-left: 64px; }

.topbar {
  height: 64px;
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; gap: 16px;
  padding: 0 24px;
  position: sticky; top: 0; z-index: 100;
}
.topbar-title { font-weight: 700; font-size: 1.05rem; flex: 1; }
.user-avatar {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--grad-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: .9rem;
  cursor: pointer;
  overflow: hidden;
  flex-shrink: 0;
}
.user-avatar img { width: 100%; height: 100%; object-fit: cover; }

.page-content { flex: 1; padding: 28px; }

/* ── AI Card ─────────────────────────────────────────── */
.ai-card {
  border: 1.5px solid var(--primary-light);
  background: linear-gradient(135deg, rgba(124,58,237,.06), rgba(167,139,250,.04));
  border-radius: 14px;
  padding: 20px;
}
.ai-rec {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 18px; border-radius: 999px;
  font-weight: 700; font-size: .9rem;
}
.ai-rec.APROBAR  { background: #d1fae5; color: #065f46; }
.ai-rec.RECHAZAR { background: #fee2e2; color: #991b1b; }
.ai-rec.REVISAR  { background: #fef3c7; color: #92400e; }

/* ── Confidence bar ──────────────────────────────────── */
.conf-bar { height: 6px; background: var(--border); border-radius: 999px; overflow: hidden; margin-top: 8px; }
.conf-fill { height: 100%; border-radius: 999px; background: var(--grad-primary); transition: width .6s ease; }

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 768px) {
  /* ── Sidebar mobile ── */
  .sidebar { transform: translateX(-100%); z-index: 300; }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-layout, .main-layout.collapsed { margin-left: 0; }

  /* ── Overlay para cerrar sidebar al tocar fuera ── */
  .sidebar-overlay {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 299;
    backdrop-filter: blur(1px);
  }
  .sidebar-overlay.active { display: block; }

  /* ── Theme toggle vertical en sidebar mobile ── */
  .sidebar .theme-toggle {
    flex-direction: column;
    border-radius: 14px;
    width: 38px;
    padding: 4px;
  }

  /* ── Layout ── */
  .page-content { padding: 16px; }
  .topbar { padding: 0 12px; gap: 8px; }
  .topbar-title { font-size: .95rem; }
  .stat-card { padding: 14px; }
  .stat-value { font-size: 1.4rem; }
  .card-body { padding: 14px !important; }

  /* ── Tablas con scroll horizontal en mobile ── */
  .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

  /* ── Modales ── */
  .modal { width: 96%; max-height: 92vh; }
  .modal-body { padding: 16px; }
  .form-grid { grid-template-columns: 1fr !important; }
}
@media (max-width: 480px) {
  .page-content { padding: 10px; }
  .stat-card { gap: 10px; }
  .btn-sm { padding: 5px 10px; font-size: .78rem; }
}