/**
 * Cotizador 360 - Estilos Profesionales
 * Sistema SaaS de Cotizaciones
 * v2.0 - Diseño Moderno
 */

/* ===== GOOGLE FONTS ===== */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

/* ===== CSS VARIABLES ===== */
:root {
    /* Colores principales */
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --primary-50: rgba(37, 99, 235, 0.05);
    --primary-100: rgba(37, 99, 235, 0.1);
    
    /* Estados */
    --secondary: #64748b;
    --success: #059669;
    --success-light: #10b981;
    --warning: #d97706;
    --warning-light: #f59e0b;
    --danger: #dc2626;
    --danger-light: #ef4444;
    
    /* Neutros */
    --dark: #0f172a;
    --light: #f8fafc;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    --gradient-dark: linear-gradient(135deg, #1e3a5f 0%, #0d1b2a 100%);
    --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #0d1b2a 100%);
    --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Bordes y sombras */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.3);
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-index */
    --z-dropdown: 50;
    --z-sticky: 100;
    --z-modal: 1000;
    --z-toast: 1100;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

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

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

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

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.animate-fade-in { animation: fadeIn 0.6s ease forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease forwards; }
.animate-fade-in-down { animation: fadeInDown 0.6s ease forwards; }
.animate-slide-left { animation: slideInLeft 0.6s ease forwards; }
.animate-slide-right { animation: slideInRight 0.6s ease forwards; }
.animate-scale-in { animation: scaleIn 0.4s ease forwards; }
.animate-float { animation: float 3s ease-in-out infinite; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-bounce { animation: bounce 1s ease infinite; }

.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }
.delay-600 { animation-delay: 600ms; }

/* ===== LAYOUT ===== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-sm { max-width: 640px; }
.container-md { max-width: 768px; }
.container-lg { max-width: 1024px; }
.container-xl { max-width: 1280px; }

.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: 280px;
    background: var(--dark);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: var(--z-sticky);
    transition: transform var(--transition);
    display: flex;
    flex-direction: column;
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--gray-600);
    border-radius: 3px;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 14px;
}

.sidebar-header img {
    height: 42px;
    width: auto;
    border-radius: var(--radius-sm);
}

.sidebar-header h1 {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.3;
}

.sidebar-nav {
    padding: 16px 0;
    flex: 1;
}

.nav-section {
    padding: 16px 24px 8px;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray-500);
    font-weight: 600;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 24px;
    color: var(--gray-400);
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
    font-size: 0.95rem;
    font-weight: 500;
}

.nav-item:hover {
    background: rgba(255,255,255,0.05);
    color: white;
    text-decoration: none;
}

.nav-item.active {
    background: rgba(37, 99, 235, 0.15);
    color: white;
    border-left-color: var(--primary);
}

.nav-item svg {
    width: 22px;
    height: 22px;
    opacity: 0.7;
    flex-shrink: 0;
}

.nav-item.active svg,
.nav-item:hover svg {
    opacity: 1;
}

.sidebar-footer {
    padding: 16px 24px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
    background: var(--gray-50);
}

.top-bar {
    background: white;
    padding: 18px 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: var(--z-dropdown);
    border-bottom: 1px solid var(--gray-100);
}

.top-bar h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.page-content {
    padding: 32px;
}

/* ===== CARDS ===== */
.card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--gray-50);
}

.card-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-header h3 svg {
    color: var(--primary);
}

.card-body {
    padding: 24px;
}

.card-footer {
    padding: 16px 24px;
    background: var(--gray-50);
    border-top: 1px solid var(--gray-100);
}

/* ===== STATS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow);
    display: flex;
    align-items: flex-start;
    gap: 18px;
    transition: all var(--transition);
    border: 1px solid var(--gray-100);
}

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

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon svg {
    width: 26px;
    height: 26px;
    color: white;
}

.stat-icon.blue { background: var(--gradient-primary); }
.stat-icon.green { background: linear-gradient(135deg, #10b981, #059669); }
.stat-icon.purple { background: linear-gradient(135deg, #8b5cf6, #6d28d9); }
.stat-icon.orange { background: linear-gradient(135deg, #f59e0b, #d97706); }
.stat-icon.red { background: linear-gradient(135deg, #ef4444, #dc2626); }
.stat-icon.cyan { background: linear-gradient(135deg, #06b6d4, #0891b2); }

.stat-info {
    flex: 1;
}

.stat-info h4 {
    font-size: 0.85rem;
    color: var(--gray-500);
    font-weight: 600;
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-info .value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.2;
}

.stat-info .change {
    font-size: 0.85rem;
    margin-top: 6px;
    font-weight: 500;
}

.stat-info .change.up { color: var(--success); }
.stat-info .change.down { color: var(--danger); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    font-family: inherit;
    white-space: nowrap;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-2px);
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn svg {
    width: 18px;
    height: 18px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
    border: 1px solid var(--gray-200);
}

.btn-secondary:hover {
    background: var(--gray-200);
    border-color: var(--gray-300);
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.25);
}

.btn-danger {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.25);
}

.btn-warning {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: white;
    box-shadow: 0 4px 14px rgba(245, 158, 11, 0.25);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

.btn-ghost {
    background: transparent;
    color: var(--gray-600);
}

.btn-ghost:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: 6px;
}

.btn-sm svg {
    width: 16px;
    height: 16px;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.05rem;
    border-radius: var(--radius);
}

.btn-xl {
    padding: 18px 40px;
    font-size: 1.1rem;
    border-radius: var(--radius);
}

.btn-icon {
    padding: 10px;
    border-radius: var(--radius-sm);
}

.btn-icon.btn-sm {
    padding: 6px;
}

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

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-100);
}

.form-control::placeholder {
    color: var(--gray-400);
}

.form-control:disabled {
    background: var(--gray-100);
    cursor: not-allowed;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 20px;
    padding-right: 48px;
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: 6px;
}

.form-error {
    font-size: 0.8rem;
    color: var(--danger);
    margin-top: 6px;
}

/* Checkbox y Radio custom */
.form-check {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 18px;
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.form-check:hover {
    border-color: var(--primary-light);
    background: var(--primary-50);
}

.form-check.selected {
    border-color: var(--primary);
    background: var(--primary-50);
    box-shadow: 0 0 0 4px var(--primary-100);
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    display: none;
}

.check-box {
    width: 26px;
    height: 26px;
    border: 2px solid var(--gray-300);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    background: white;
}

.form-check.selected .check-box {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.check-content {
    flex: 1;
}

.check-content .title {
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
    display: block;
}

.check-content .desc {
    font-size: 0.85rem;
    color: var(--gray-500);
    display: block;
}

.check-content .price {
    font-weight: 700;
    color: var(--primary);
    margin-top: 8px;
    display: block;
    font-size: 1.1rem;
}

.check-content .price small {
    font-weight: 500;
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* Input numérico estilizado */
.number-input {
    display: inline-flex;
    align-items: center;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid var(--gray-200);
}

.number-input button {
    width: 46px;
    height: 46px;
    border: none;
    background: var(--gray-100);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--gray-600);
    font-weight: 600;
}

.number-input button:hover {
    background: var(--primary);
    color: white;
}

.number-input input {
    width: 80px;
    height: 46px;
    border: none;
    border-left: 2px solid var(--gray-200);
    border-right: 2px solid var(--gray-200);
    text-align: center;
    font-size: 1.1rem;
    font-weight: 700;
    font-family: inherit;
}

.number-input input:focus {
    outline: none;
    background: var(--primary-50);
}

/* ===== TABLES ===== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

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

.table th,
.table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid var(--gray-100);
}

.table th {
    background: var(--gray-50);
    font-weight: 700;
    color: var(--gray-600);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.table tbody tr:hover {
    background: var(--gray-50);
}

.table .actions {
    display: flex;
    gap: 8px;
}

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary { background: var(--primary-100); color: var(--primary); }
.badge-success { background: rgba(5, 150, 105, 0.1); color: var(--success); }
.badge-warning { background: rgba(217, 119, 6, 0.1); color: var(--warning); }
.badge-danger { background: rgba(220, 38, 38, 0.1); color: var(--danger); }
.badge-secondary { background: var(--gray-200); color: var(--gray-600); }
.badge-info { background: rgba(6, 182, 212, 0.1); color: #0891b2; }

/* ===== COTIZADOR ===== */
.cotizador-header {
    background: var(--gradient-primary);
    color: white;
    padding: 48px 0;
    text-align: center;
}

.cotizador-header img {
    height: 70px;
    margin-bottom: 18px;
}

.cotizador-header h1 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.cotizador-header p {
    opacity: 0.9;
    font-size: 1.15rem;
}

.cotizador-body {
    padding: 48px 0;
}

.cotizador-grid {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 32px;
    align-items: flex-start;
}

.cotizador-form {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.section-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title svg {
    color: var(--primary);
}

.productos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

/* Panel de resumen sticky */
.resumen-panel {
    position: sticky;
    top: 100px;
}

.resumen-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--gray-100);
}

.resumen-header {
    background: var(--dark);
    color: white;
    padding: 22px;
    text-align: center;
}

.resumen-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
}

.resumen-body {
    padding: 24px;
}

.resumen-items {
    max-height: 320px;
    overflow-y: auto;
    margin-bottom: 20px;
}

.resumen-items::-webkit-scrollbar {
    width: 4px;
}

.resumen-items::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 2px;
}

.resumen-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.95rem;
}

.resumen-item:last-child {
    border-bottom: none;
}

.resumen-item .name {
    color: var(--gray-600);
}

.resumen-item .price {
    font-weight: 700;
    color: var(--dark);
}

.resumen-totals {
    border-top: 2px solid var(--gray-200);
    padding-top: 16px;
}

.resumen-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-weight: 500;
}

.resumen-row.total {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--dark);
    padding-top: 12px;
    border-top: 2px dashed var(--gray-300);
    margin-top: 12px;
}

.resumen-row.mensual {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.resumen-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

.resumen-actions .btn {
    width: 100%;
}

/* ===== MODALS ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9) translateY(-20px);
    transition: transform var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-close {
    background: var(--gray-100);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-500);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--gray-200);
    color: var(--gray-700);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 18px 24px;
    border-top: 1px solid var(--gray-100);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: var(--gray-50);
}

/* ===== ALERTS ===== */
.alert {
    padding: 18px 24px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 14px;
    font-weight: 500;
    border: 1px solid transparent;
}

.alert svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    margin-top: 2px;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-color: #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-color: #fecaca;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-color: #fde68a;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-color: #bfdbfe;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    background: var(--dark);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 320px;
    max-width: 420px;
    animation: slideInRight 0.4s ease;
}

.toast.toast-success { background: var(--success); }
.toast.toast-error { background: var(--danger); }
.toast.toast-warning { background: var(--warning); }

.toast-close {
    background: none;
    border: none;
    color: inherit;
    opacity: 0.7;
    cursor: pointer;
    margin-left: auto;
    font-size: 1.25rem;
}

.toast-close:hover {
    opacity: 1;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--gray-500);
}

.empty-state svg {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    opacity: 0.3;
    color: var(--gray-400);
}

.empty-state h3 {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 10px;
    font-weight: 700;
}

.empty-state p {
    margin-bottom: 20px;
}

/* ===== LOADING ===== */
.loading {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading-lg {
    width: 48px;
    height: 48px;
    border-width: 4px;
}

.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}

/* ===== PROGRESS BAR ===== */
.progress {
    height: 10px;
    background: var(--gray-200);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar.success { background: linear-gradient(135deg, #10b981, #059669); }
.progress-bar.warning { background: linear-gradient(135deg, #f59e0b, #d97706); }
.progress-bar.danger { background: linear-gradient(135deg, #ef4444, #dc2626); }

/* ===== TABS ===== */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--gray-200);
    margin-bottom: 24px;
}

.tab {
    padding: 14px 28px;
    background: none;
    border: none;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-500);
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast);
    font-family: inherit;
}

.tab:hover {
    color: var(--gray-700);
}

.tab.active {
    color: var(--primary);
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
}

/* ===== AVATAR ===== */
.avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
}

.avatar-sm { width: 32px; height: 32px; font-size: 0.75rem; }
.avatar-lg { width: 56px; height: 56px; font-size: 1.1rem; }
.avatar-xl { width: 80px; height: 80px; font-size: 1.5rem; }

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* ===== DROPDOWN ===== */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-100);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 18px;
    color: var(--gray-700);
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--gray-50);
    color: var(--primary);
    text-decoration: none;
}

.dropdown-divider {
    height: 1px;
    background: var(--gray-100);
    margin: 8px 0;
}

/* ===== TOOLTIP ===== */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dark);
    color: white;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    pointer-events: none;
    margin-bottom: 8px;
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ===== PASSWORD STRENGTH ===== */
.password-strength {
    display: flex;
    gap: 4px;
    margin-top: 8px;
}

.password-strength-bar {
    flex: 1;
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    transition: background var(--transition-fast);
}

.password-strength.weak .password-strength-bar:nth-child(1) { background: var(--danger); }
.password-strength.fair .password-strength-bar:nth-child(-n+2) { background: var(--warning); }
.password-strength.good .password-strength-bar:nth-child(-n+3) { background: var(--success-light); }
.password-strength.strong .password-strength-bar { background: var(--success); }

.password-strength-text {
    font-size: 0.75rem;
    margin-top: 4px;
    font-weight: 600;
}

.password-strength-text.weak { color: var(--danger); }
.password-strength-text.fair { color: var(--warning); }
.password-strength-text.good { color: var(--success-light); }
.password-strength-text.strong { color: var(--success); }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .cotizador-grid {
        grid-template-columns: 1fr;
    }
    
    .resumen-panel {
        position: static;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 100%;
        max-width: 300px;
        z-index: 1000;
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
}

/* Overlay para cerrar el sidebar - fuera del media query para que siempre aplique */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* En desktop, el overlay nunca debe mostrarse */
@media (min-width: 769px) {
    .sidebar-overlay,
    .sidebar-overlay.active {
        display: none !important;
        pointer-events: none !important;
    }
}

/* Estilos responsive para móviles */
@media (max-width: 768px) {
    .main-content {
        margin-left: 0;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .productos-grid {
        grid-template-columns: 1fr;
    }
    
    .top-bar {
        padding: 16px;
    }
    
    .top-bar h2 {
        font-size: 1.25rem;
    }
    
    .page-content {
        padding: 20px;
    }
    
    .container {
        padding: 0 16px;
    }
    
    .modal {
        margin: 16px;
        max-width: calc(100% - 32px);
    }
    
    .toast-container {
        left: 16px;
        right: 16px;
        bottom: 16px;
    }
    
    .toast {
        min-width: 100%;
    }
}

/* ===== PRINT ===== */
@media print {
    .sidebar,
    .top-bar,
    .resumen-actions,
    .btn,
    .toast-container {
        display: none !important;
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .page-content {
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-200);
    }
}

/* ===== UTILITIES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-muted { color: var(--gray-500); }

.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.font-extrabold { font-weight: 800; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }

.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }

.d-flex { display: flex; }
.d-grid { display: grid; }
.d-none { display: none; }

.flex-column { flex-direction: column; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.w-full { width: 100%; }
.h-full { height: 100%; }