:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Brand Palette: Kolima Luxury Dark */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --bg-glass: rgba(15, 23, 42, 0.65);
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(217, 119, 6, 0.5);
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --brand-gold: #d97706;
  --brand-gold-hover: #b45309;
  --brand-gold-glow: rgba(217, 119, 6, 0.25);
  
  --color-emerald: #10b981;
  --color-emerald-bg: rgba(16, 185, 129, 0.12);
  --color-blue: #3b82f6;
  --color-blue-bg: rgba(59, 130, 246, 0.12);
  --color-amber: #f59e0b;
  --color-amber-bg: rgba(245, 158, 11, 0.12);
  --color-purple: #8b5cf6;
  --color-purple-bg: rgba(139, 92, 246, 0.12);
  --color-red: #ef4444;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px var(--brand-gold-glow);
  
  --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: #ffffff;
  --bg-glass: rgba(255, 255, 255, 0.85);
  
  --border-color: rgba(0, 0, 0, 0.08);
  --border-focus: rgba(217, 119, 6, 0.4);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  background-image: 
    radial-gradient(at 0% 0%, rgba(217, 119, 6, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(59, 130, 246, 0.05) 0px, transparent 50%);
  background-attachment: fixed;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.25);
}

/* Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.app-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-section {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-logo {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.brand-divider {
  width: 1px;
  height: 28px;
  background: var(--border-color);
}

.brand-title-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-gold);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.4rem 0.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-gold), #92400e);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
}

.user-info {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  max-width: 160px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role-tag {
  font-size: 0.68rem;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-gold), #b45309);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(217, 119, 6, 0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  box-shadow: var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border-color);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.3);
}
.btn-danger:hover {
  background: rgba(239, 68, 68, 0.25);
}

.btn-icon {
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}
.btn-icon:hover {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Main Content Area */
.main-wrapper {
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}

/* Hero & Welcome */
.portal-hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.portal-welcome h1 {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.portal-welcome p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Stats Cards (Admin & Author) */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}
.stat-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-md);
}

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
}

.stat-info {
  display: flex;
  flex-direction: column;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* Filter Bar & Controls */
.controls-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.category-pills {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.25rem;
}

.pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-full);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.825rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition);
}
.pill-btn:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}
.pill-btn.active {
  background: var(--brand-gold);
  color: #ffffff;
  border-color: var(--brand-gold);
  box-shadow: 0 2px 10px rgba(217, 119, 6, 0.35);
}

.search-box {
  position: relative;
  min-width: 260px;
  flex: 1;
  max-width: 400px;
}

.search-input {
  width: 100%;
  padding: 0.55rem 1rem 0.55rem 2.4rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}
.search-input:focus {
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px var(--brand-gold-glow);
}
.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Document Grid */
.doc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.doc-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  backdrop-filter: blur(12px);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.doc-card:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-lg);
}

.doc-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.doc-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
}

.doc-category-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.25rem 0.6rem;
  border-radius: var(--radius-full);
}

.badge-liquidacion {
  background: var(--color-emerald-bg);
  color: var(--color-emerald);
  border: 1px solid rgba(16, 185, 129, 0.25);
}
.badge-contrato {
  background: var(--color-blue-bg);
  color: var(--color-blue);
  border: 1px solid rgba(59, 130, 246, 0.25);
}
.badge-manuscrito {
  background: var(--color-amber-bg);
  color: var(--color-amber);
  border: 1px solid rgba(245, 158, 11, 0.25);
}
.badge-grafico {
  background: var(--color-purple-bg);
  color: var(--color-purple);
  border: 1px solid rgba(139, 92, 246, 0.25);
}
.badge-otro {
  background: rgba(148, 163, 184, 0.12);
  color: #94a3b8;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.doc-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
}

.doc-author-tag {
  font-size: 0.78rem;
  color: var(--brand-gold);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.doc-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.doc-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-top: 1px solid var(--border-color);
  padding-top: 0.85rem;
}

/* Drag and Drop Upload Zone */
.dropzone {
  border: 2px dashed rgba(217, 119, 6, 0.4);
  background: rgba(217, 119, 6, 0.03);
  border-radius: var(--radius-lg);
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  margin-bottom: 2rem;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--brand-gold);
  background: rgba(217, 119, 6, 0.08);
  transform: scale(1.005);
}
.dropzone-icon {
  font-size: 2.5rem;
  color: var(--brand-gold);
  margin-bottom: 0.75rem;
}
.dropzone-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.35rem;
}
.dropzone-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: 1.75rem;
  transform: scale(0.95);
  transition: var(--transition);
}
.modal-overlay.active .modal-content {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}
.modal-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* Fullscreen PDF Viewer Modal */
.modal-pdf {
  max-width: 95vw;
  height: 92vh;
  display: flex;
  flex-direction: column;
  padding: 1rem;
}
.modal-pdf-body {
  flex: 1;
  width: 100%;
  height: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #1e293b;
}
.modal-pdf iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 110;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  animation: slideIn 0.3s ease;
}
.toast.success { border-left: 4px solid var(--color-emerald); }
.toast.error { border-left: 4px solid var(--color-red); }

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

/* Login Card */
.login-wrap {
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  padding: 2.5rem 2rem;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(16px);
  text-align: center;
}
.login-logo {
  height: 52px;
  margin-bottom: 1.25rem;
}
.login-card h2 {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.35rem;
}
.login-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}
.form-group {
  margin-bottom: 1.1rem;
  text-align: left;
}
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
}
.form-input, .form-select {
  width: 100%;
  padding: 0.65rem 0.9rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}
.form-input:focus, .form-select:focus {
  border-color: var(--brand-gold);
  box-shadow: 0 0 0 3px var(--brand-gold-glow);
}

/* Destinatarios de la subida (admin) */
.target-options { display: flex; flex-wrap: wrap; gap: 0.5rem 1.25rem; font-size: 0.9rem; }
.target-options label { display: flex; align-items: center; gap: 0.4rem; cursor: pointer; }
.target-count { font-weight: 500; color: var(--brand-gold); margin-left: 0.4rem; }
.target-note { font-size: 0.875rem; color: var(--text-secondary); }
.author-checklist {
  margin-top: 0.5rem;
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.25rem;
}
.author-check { display: flex; align-items: center; gap: 0.6rem; padding: 0.4rem 0.5rem; border-radius: var(--radius-sm, 6px); cursor: pointer; font-size: 0.875rem; }
.author-check:hover { background: var(--bg-card-hover); }
.author-check[hidden] { display: none; }
.author-check small { color: var(--text-muted); margin-left: 0.35rem; }
.form-group[hidden] { display: none; }

/* Responsive */
@media (max-width: 768px) {
  .app-header { padding: 0.75rem 1rem; }
  .main-wrapper { padding: 1.25rem 1rem; }
  .portal-hero { flex-direction: column; align-items: flex-start; }
  .controls-bar { flex-direction: column; align-items: stretch; }
  .search-box { max-width: 100%; }
  .doc-grid { grid-template-columns: 1fr; }
}