:root {
    --color-primary: #4a1a4a;
    --color-secondary: #8b1538;
    --color-accent: #d4af37;
    --color-success: #2d7a3e;
    --color-error: #c41e3a;
    --color-warning: #d4af37;
    --color-info: #4a5f7f;
    
    /* Modo Oscuro (por defecto) */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3a3a3a;
    --text-primary: #f5f5f5;
    --text-secondary: rgba(245, 245, 245, 0.8);
    --text-tertiary: rgba(245, 245, 245, 0.6);
    --border-color: rgba(212, 175, 55, 0.2);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.25);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Modo Claro */
body.light-mode {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0f0f0;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-tertiary: #6a6a6a;
    --border-color: rgba(0, 0, 0, 0.12);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 32px rgba(0, 0, 0, 0.12);
}

/* Mejoras específicas para modo claro */
body.light-mode .stat-card {
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

body.light-mode .stat-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

body.light-mode .card {
    border: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

body.light-mode .btn-secondary {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.15);
}

body.light-mode .btn-secondary:hover {
    background: #f8f9fa;
    border-color: var(--color-accent);
}

body.light-mode .form-control {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.15);
}

body.light-mode .form-control:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.15);
}

body.light-mode .table tbody tr:hover {
    background: rgba(212, 175, 55, 0.08);
}

body.light-mode .btn-icon {
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.15);
}

body.light-mode .btn-icon:hover {
    background: #f8f9fa;
}

/* Badges mejorados para modo claro */
body.light-mode .badge-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

body.light-mode .badge-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

body.light-mode .badge-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

body.light-mode .badge-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

body.light-mode .stat-change.positive {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

body.light-mode .stat-change.negative {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Header mejorado para modo claro */
body.light-mode .header {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-bottom: 2px solid var(--color-accent);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

body.light-mode .logo {
    color: var(--color-primary);
}

body.light-mode .logo-icon {
    background: var(--color-accent);
    color: var(--color-primary);
}

body.light-mode .nav-link {
    color: var(--text-primary);
}

body.light-mode .nav-link:hover {
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-primary);
}

body.light-mode .nav-link.active {
    background: var(--color-accent);
    color: var(--color-primary);
}

body.light-mode .theme-toggle {
    background: rgba(212, 175, 55, 0.1);
    color: var(--text-primary);
}

body.light-mode .theme-toggle:hover {
    background: rgba(212, 175, 55, 0.2);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background 0.3s ease, color 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    padding: 20px 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 2px solid var(--color-accent);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 106px;
    width: auto;
    object-fit: contain;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--color-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.theme-toggle {
    width: 44px;
    height: 44px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: var(--transition);
    margin-left: 8px;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.nav-link {
    padding: 10px 20px;
    color: var(--color-white);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    background: var(--color-accent);
    color: var(--color-dark);
}

.dashboard {
    padding: 40px 0;
}

.page-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 30px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-secondary) 100%);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.stat-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-accent);
}

.stat-value {
    font-size: 42px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 8px;
    font-weight: 500;
}

.stat-change {
    font-size: 13px;
    margin-top: 12px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    display: inline-block;
}

.stat-change.positive {
    background: rgba(45, 122, 62, 0.2);
    color: #4ade80;
}

.stat-change.negative {
    background: rgba(196, 30, 58, 0.2);
    color: #f87171;
}

.card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.card-header {
    padding: 24px;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 24px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    justify-content: center;
    min-height: 48px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, #c9a030 100%);
    color: var(--color-dark);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--color-accent);
}

.btn-success {
    background: linear-gradient(135deg, var(--color-success) 0%, #25612f 100%);
    color: var(--color-white);
    box-shadow: var(--shadow-sm);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-error) 0%, #a01828 100%);
    color: var(--color-white);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 17px;
    min-height: 56px;
}

.btn-block {
    width: 100%;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 15px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: var(--transition);
    min-height: 48px;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.form-control::placeholder {
    color: rgba(245, 245, 245, 0.4);
}

.search-box {
    position: relative;
    margin-bottom: 24px;
}

.search-box input {
    padding-left: 48px;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: rgba(245, 245, 245, 0.5);
    font-size: 20px;
}

.table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: var(--bg-tertiary);
}

.table th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    color: var(--color-accent);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table td {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: rgba(212, 175, 55, 0.05);
}

.badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: rgba(45, 122, 62, 0.2);
    color: #4ade80;
}

.badge-warning {
    background: rgba(212, 175, 55, 0.2);
    color: var(--color-accent);
}

.badge-danger {
    background: rgba(196, 30, 58, 0.2);
    color: #f87171;
}

.badge-info {
    background: rgba(74, 95, 127, 0.2);
    color: #93c5fd;
}

.action-buttons {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--bg-secondary);
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(4px);
}

.modal.active {
    display: flex;
}

.modal-content {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.modal-close:hover {
    background: rgba(212, 175, 55, 0.1);
    color: var(--color-accent);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 24px;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.alert-success {
    background: rgba(45, 122, 62, 0.2);
    color: #4ade80;
    border: 1px solid rgba(74, 222, 128, 0.3);
}

.alert-error {
    background: rgba(196, 30, 58, 0.2);
    color: #f87171;
    border: 1px solid rgba(248, 113, 113, 0.3);
}

.alert-warning {
    background: rgba(212, 175, 55, 0.2);
    color: var(--color-accent);
    border: 1px solid rgba(212, 175, 55, 0.3);
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: rgba(245, 245, 245, 0.6);
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.empty-state-text {
    font-size: 15px;
    margin-bottom: 24px;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(212, 175, 55, 0.2);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

@media (max-width: 1200px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
    }
    
    .nav {
        width: 100%;
        flex-direction: column;
    }
    
    .nav-link {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .page-title {
        font-size: 24px;
    }
    
    .table-container {
        font-size: 14px;
    }
    
    .table th,
    .table td {
        padding: 12px 8px;
    }
    
    .modal-content {
        margin: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 12px;
    }
    
    .stat-card {
        padding: 20px;
    }
    
    .stat-value {
        font-size: 32px;
    }
    
    .btn {
        padding: 10px 20px;
    }
    
    .btn-lg {
        padding: 14px 28px;
    }
}