/* Variables CSS */
:root {
    --primary-bg: #0f0f23;
    --secondary-bg: #1a1a2e;
    --accent-bg: #16213e;
    --text-primary: #ffffff;
    --text-secondary: #e0e6ed;
    --text-muted: #a0aec0;
    --border-color: #2d3748;
    --border-light: #4a5568;
    --primary-color: #667eea;
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-color: #48bb78;
    --success-gradient: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    --danger-color: #f56565;
    --danger-gradient: linear-gradient(135deg, #f56565 0%, #e53e3e 100%);
    --warning-color: #ed8936;
    --warning-gradient: linear-gradient(135deg, #ed8936 0%, #dd6b20 100%);
    --border-radius: 16px;
    --border-radius-sm: 10px;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.4);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Tema claro con paleta de colores pastel neutros */
[data-theme="light"] {
    --primary-bg: rgba(240, 240, 250, 0.9);
    --secondary-bg: rgba(255, 240, 245, 0.9);
    --accent-bg: rgba(245, 235, 250, 0.9);
    --text-primary: #4a4a4a;
    --text-secondary: #6b6b6b;
    --text-muted: #310b0b;
    --border-color: rgba(200, 180, 200, 0.4);
    --border-light: rgba(220, 200, 220, 0.5);
    --primary-color: #4b5563;
    --primary-gradient: linear-gradient(135deg, #4b5563 0%, #1e293b 100%);
    --success-color: #10b981;
    --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --danger-color: #ef4444;
    --danger-gradient: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --warning-color: #f59e0b;
    --warning-gradient: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px rgba(0, 0, 0, 0.12);
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 50%, var(--accent-bg) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    transition: var(--transition);
}

/* Contenedor principal del dashboard */
.dashboard-container {
    min-height: 100vh;
    background-color: var(--primary-bg);
}

/* Utilidades */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border: none;
    border-radius: var(--border-radius-sm);
    background: linear-gradient(135deg, var(--accent-bg) 0%, var(--secondary-bg) 100%);
    color: var(--text-primary);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    font-weight: 600;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-bg) 0%, var(--accent-bg) 100%);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--accent-bg) 0%, var(--secondary-bg) 100%);
    border-color: var(--border-light);
}

/* Modal base */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 15, 35, 0.8);
    backdrop-filter: blur(12px);
    animation: fadeIn 0.3s ease-out;
}

.modal-content {
    background: linear-gradient(135deg, rgba(26, 26, 46, 0.95) 0%, rgba(22, 33, 62, 0.95) 100%);
    backdrop-filter: blur(20px);
    margin: 5% auto;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    animation: slideInUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.modal-large {
    max-width: 700px;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
    pointer-events: none;
}

.modal-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    color: var(--text-primary);
    font-size: 18px;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.close-btn:hover {
    background-color: var(--accent-bg);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--accent-bg);
    color: var(--text-primary);
    font-size: 14px;
    transition: var(--transition);
}

.form-group input[type="datetime-local"] {
    padding: 12px 16px;
    font-family: inherit;
}

.form-group select {
    cursor: pointer;
}

.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

/* Formulario en filas */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
}

.form-help {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--text-muted);
    font-style: italic;
}

/* Estado de carga y alertas */
.upload-status {
    margin-top: 16px;
    padding: 12px;
    border-radius: var(--border-radius-sm);
}

.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    line-height: 1.5;
}

.alert i {
    font-size: 16px;
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.1);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.2);
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.alert-warning {
    background-color: rgba(251, 146, 60, 0.1);
    color: #fb923c;
    border: 1px solid rgba(251, 146, 60, 0.2);
}

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

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

/* Estilos adicionales para tema claro con paleta pastel */
[data-theme="light"] .modal-content {
    background: linear-gradient(135deg, rgba(255, 240, 245, 0.95) 0%, rgba(245, 235, 250, 0.95) 100%);
    border: 1px solid rgba(200, 180, 200, 0.6);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .modal-content::before {
    background: linear-gradient(135deg, rgba(75, 85, 99, 0.03) 0%, transparent 100%);
}

[data-theme="light"] .theme-toggle-btn {
    background: linear-gradient(135deg, rgba(245, 235, 250, 0.8) 0%, rgba(240, 240, 250, 0.8) 100%);
    border: 1px solid rgba(200, 180, 200, 0.6);
    color: var(--primary-color);
}

[data-theme="light"] .theme-toggle-btn:hover {
    background: var(--primary-gradient);
    border-color: rgba(75, 85, 99, 0.6);
    box-shadow: 0 6px 20px rgba(75, 85, 99, 0.25);
    color: white;
}

/* Botones mejorados para tema claro pastel */
[data-theme="light"] .btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 6px 20px rgba(75, 85, 99, 0.25);
}

[data-theme="light"] .btn-primary:hover {
    box-shadow: 0 10px 30px rgba(75, 85, 99, 0.35);
}

[data-theme="light"] .btn-secondary {
    background: linear-gradient(135deg, rgba(255, 240, 245, 0.8) 0%, rgba(245, 235, 250, 0.8) 100%);
    border: 1px solid rgba(200, 180, 200, 0.6);
    color: var(--text-primary);
}

[data-theme="light"] .btn-secondary:hover {
    background: linear-gradient(135deg, rgba(75, 85, 99, 0.1) 0%, rgba(30, 41, 59, 0.1) 100%);
    border-color: rgba(75, 85, 99, 0.4);
}

/* Estilos para botón HITL Dashboard en tema claro */
[data-theme="light"] .btn-hitl-dashboard {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.9) 0%, rgba(22, 163, 74, 0.9) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.25);
}

[data-theme="light"] .btn-hitl-dashboard:hover {
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.35);
    background: linear-gradient(135deg, rgba(34, 197, 94, 1) 0%, rgba(22, 163, 74, 1) 100%);
}

/* Estilos para botón configurar WhatsApp en tema claro */
[data-theme="light"] .btn-whatsapp-config {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.95) 0%, rgba(22, 163, 74, 0.95) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(34, 197, 94, 0.25);
}

[data-theme="light"] .btn-whatsapp-config:hover {
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.35);
    background: linear-gradient(135deg, rgba(34, 197, 94, 1) 0%, rgba(22, 163, 74, 1) 100%);
}

/* Estilos para botón galería WhatsApp en tema claro */
[data-theme="light"] .btn-whatsapp-media {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.95) 0%, rgba(79, 70, 229, 0.95) 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.25);
}

[data-theme="light"] .btn-whatsapp-media:hover {
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.35);
    background: linear-gradient(135deg, rgba(102, 126, 234, 1) 0%, rgba(79, 70, 229, 1) 100%);
}

/* Estilos para botón agregar usuario en tema claro */
[data-theme="light"] .btn-add-user {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(75, 85, 99, 0.25);
}

[data-theme="light"] .btn-add-user:hover {
    box-shadow: 0 6px 20px rgba(75, 85, 99, 0.35);
}

/* Responsive */
@media (max-width: 768px) {
    .modal-content {
        width: 95%;
        margin: 10% auto;
    }
    
    .modal-header,
    .modal-body,
    .modal-footer {
        padding: 15px;
    }
    
    .header-actions {
        gap: 12px;
        flex-wrap: wrap;
    }
    
    /* El separador se oculta en móvil */
    .header-buttons-separator {
        display: none;
    }
    
    .modal-large {
        max-width: 95%;
    }
}