/* ===== VARIABLES CSS ===== */
:root {
    /* Colores principales */
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    
    /* Escalas de grises */
    --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;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    
    /* Radios */
    --radius: 8px;
    --radius-sm: 4px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
}

/* ===== RESET Y BASE ===== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.clean-body {
    background: var(--gray-50);
}

main {
    flex: 1;
    min-height: calc(100vh - 200px); /* Asegurar espacio mínimo */
}

/* ===== NAVBAR LIMPIA ===== */
.clean-navbar {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.clean-navbar .container-fluid {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
}

.nav-brand i {
    font-size: 1.75rem;
}

.nav-links {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 500;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.nav-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    transform: translateY(-1px);
}

.nav-links a.active {
    background: rgba(255, 255, 255, 0.25);
    color: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.nav-links a i {
    font-size: 0.9rem;
}

/* Responsive navbar */
@media (max-width: 768px) {
    .clean-navbar .container-fluid {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-links a {
        font-size: 0.9rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* ===== LAYOUT PRINCIPAL ===== */
.clean-main {
    padding: var(--spacing-xl) 0;
    min-height: calc(100vh - 140px);
}

.clean-main .container-fluid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===== CARDS GENERALES ===== */
.clean-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.clean-card .card-header {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: var(--spacing-lg);
    font-weight: 600;
}

.clean-card .card-header h3,
.clean-card .card-header h4,
.clean-card .card-header h5,
.clean-card .card-header h6 {
    margin: 0;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.clean-card .card-body {
    padding: var(--spacing-lg);
}

/* ===== LAYOUT DE REGISTRO (2 COLUMNAS) ===== */
.registro-layout {
    display: flex;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    align-items: flex-start;
}

/* Columna izquierda: Compras */
.compras-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Columna derecha: Formulario */
.formulario-column {
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ===== FORMULARIO DE NUEVA COMPRA ===== */
.nueva-compra-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: all 0.3s ease;
}

.nueva-compra-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.15);
}

.nueva-compra-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: var(--spacing-lg);
    text-align: center;
}

.nueva-compra-header h4 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.nueva-compra-header p {
    margin: 0;
    opacity: 0.9;
    font-size: 0.9rem;
}

.nueva-compra-body {
    padding: var(--spacing-lg);
}

/* ===== CAMPOS DE FORMULARIO ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
}

.form-label i {
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

.form-control-destacado,
.form-control-clean {
    background-color: #fff;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    width: 100%;
    box-shadow: none;
    color: var(--gray-700);
}

.form-control-destacado:focus,
.form-control-clean:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    outline: none;
}

.form-control-destacado:hover,
.form-control-clean:hover {
    border-color: var(--gray-300);
}

.form-text {
    font-size: 0.8rem;
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
    display: block;
}

/* ===== BOTONES ===== */
.btn-destacado {
    background: linear-gradient(135deg, var(--success-color), #059669);
    border: none;
    color: white;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.btn-destacado:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn-clean {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.9rem;
}

.btn-clean.btn-info {
    background-color: var(--info-color);
    color: white;
    border-color: var(--info-color);
}

.btn-clean.btn-info:hover {
    background-color: #0891b2;
    border-color: #0891b2;
    color: white;
    transform: translateY(-1px);
}

.btn-clean.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn-clean.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    color: white;
    transform: translateY(-1px);
}

.btn-clean.btn-secondary {
    background-color: var(--gray-500);
    color: white;
    border-color: var(--gray-500);
}

.btn-clean.btn-secondary:hover {
    background-color: var(--gray-600);
    border-color: var(--gray-600);
    color: white;
    transform: translateY(-1px);
}

.btn-clean.btn-success {
    background-color: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.btn-clean.btn-success:hover {
    background-color: #059669;
    border-color: #059669;
    color: white;
    transform: translateY(-1px);
}

.btn-clean.btn-warning {
    background-color: var(--warning-color);
    color: white;
    border-color: var(--warning-color);
}

.btn-clean.btn-warning:hover {
    background-color: #d97706;
    border-color: #d97706;
    color: white;
    transform: translateY(-1px);
}

.btn-clean.btn-danger {
    background-color: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.btn-clean.btn-danger:hover {
    background-color: #dc2626;
    border-color: #dc2626;
    color: white;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--gray-300);
    color: var(--gray-700);
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
    color: var(--gray-800);
}

.form-actions-inline {
    margin-top: var(--spacing-lg);
    text-align: center;
}

/* ===== ESTADÍSTICAS Y RESUMEN ===== */
.stat-box {
    text-align: center;
    padding: var(--spacing-md) var(--spacing-sm);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--gray-600);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== ESTADÍSTICAS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    transition: all 0.3s ease;
}

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

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.blue {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
}

.stat-icon.green {
    background: linear-gradient(135deg, var(--success-color), #34d399);
}

.stat-icon.orange {
    background: linear-gradient(135deg, var(--warning-color), #fbbf24);
}

.stat-icon.purple {
    background: linear-gradient(135deg, #8b5cf6, #a78bfa);
}

.stat-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-800);
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1;
}

.stat-content p {
    color: var(--gray-600);
    margin: 0;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Responsive para estadísticas */
@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .stat-card {
        padding: var(--spacing-lg);
    }
    
    .stat-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .stat-content h3 {
        font-size: 1.5rem;
    }
}

.dashboard-stat-card {
    transition: transform 0.3s ease;
}

.dashboard-stat-card:hover {
    transform: translateY(-5px);
}

/* Footer */
footer {
    background-color: #343a40;
    color: #fff;
    padding: 1rem 0;
    margin-top: 2rem;
}

/* Estilos para el resumen de compras y canjes */
.alert-sm {
    padding: 0.5rem;
    font-size: 0.875rem;
}

.table-sm td, .table-sm th {
    padding: 0.25rem 0.5rem;
}

.badge {
    display: inline-block;
    padding: 0.25em 0.4em;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
}

.badge.bg-info {
    background-color: var(--info-color) !important;
    color: white;
}

.btn-info {
    background-color: var(--info-color);
    border-color: var(--info-color);
    color: white;
}

.btn-info:hover {
    background-color: #0891b2;
    border-color: #0891b2;
    color: white;
}

/* Estilos mejorados para el registro de nueva compra */

/* Header de nueva compra */
.nueva-compra-section {
    margin-bottom: 2rem;
}

.nueva-compra-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: 1.5rem 2rem;
    border-radius: var(--radius-lg);
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-lg);
}

.nueva-compra-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: white;
}

.nueva-compra-subtitle {
    font-size: 1rem;
    margin-bottom: 0;
    opacity: 0.9;
}

.nueva-compra-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-weight: 600;
    text-align: center;
    backdrop-filter: blur(10px);
}

/* Contenedor del formulario de compra */
.compra-form-container {
    margin-bottom: 2rem;
}

.compra-form-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--primary-color);
    overflow: hidden;
}

.form-section-header {
    background: var(--primary-color);
    color: white;
    padding: 1rem 1.5rem;
    margin: 0;
}

.form-section-header h4 {
    margin: 0;
    font-weight: 600;
}

.compra-form-content {
    padding: 2rem;
}

/* Filas destacadas del formulario */
.form-row-destacada {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -0.75rem 1.5rem -0.75rem;
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: 1.5rem 0.75rem 1rem 0.75rem;
    border: 1px solid var(--gray-200);
}

.form-row-destacada .col-md-4,
.form-row-destacada .col-md-8 {
    padding: 0 0.75rem;
}

/* Labels destacados */
.form-label-destacada {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    display: block;
    font-size: 0.95rem;
}

.form-label-destacada i {
    color: var(--primary-color);
    margin-right: 0.5rem;
    width: 16px;
}

/* Controles destacados */
.form-control-destacado {
    border: 2px solid var(--gray-300);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
    width: 100%;
}

.form-control-destacado:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    outline: none;
}

.form-control-destacado:hover {
    border-color: var(--primary-light);
}

/* Texto de ayuda */
.form-text {
    color: var(--gray-500);
    font-size: 0.85rem;
    margin-top: 0.25rem;
    display: block;
}

/* Botón destacado */
.btn-destacado {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: white;
    border: none;
    padding: 0.875rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-destacado:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

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

/* Sección de acciones del formulario */
.form-actions {
    background: var(--gray-50);
    padding: 2rem;
    border-radius: var(--radius-lg);
    margin-top: 2rem;
    border: 1px solid var(--gray-200);
    text-align: center;
}

.btn-lg {
    padding: 0.875rem 1.5rem;
    font-size: 1.1rem;
}

/* Estilos para formulario de compra en 2 columnas */
.formulario-compra {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    margin-bottom: 2rem;
}

.form-content .row {
    margin: 0 -15px;
}

.form-content .col-md-6 {
    padding: 0 15px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-control-clean {
    background-color: #fff;
    border: 2px solid #e5e7eb;
    border-radius: var(--radius);
    padding: 0.875rem 1rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    width: 100%;
    box-shadow: none;
}

.form-control-clean:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
    display: block;
}

.form-label i {
    margin-right: 0.5rem;
    color: var(--primary-color);
    width: 16px;
    text-align: center;
}

/* ===== TABLAS ===== */
.table-responsive {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-sm {
    font-size: 0.875rem;
    margin: 0;
}

.table-sm th {
    background: linear-gradient(135deg, var(--gray-100), var(--gray-50));
    font-weight: 600;
    color: var(--gray-700);
    padding: 0.75rem 0.5rem;
    border-bottom: 2px solid var(--gray-200);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.table-sm td {
    padding: 0.625rem 0.5rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--gray-100);
    color: var(--gray-600);
}

.table-sm tbody tr:hover {
    background-color: rgba(59, 130, 246, 0.05);
}

.table-sm .badge {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    font-weight: 600;
}

/* ===== CANJES DISPONIBLES ===== */
.canjes-section {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.canjes-section .clean-card {
    box-shadow: var(--shadow-lg);
    border: 2px solid #fbbf24;
}

.canjes-section .card-header {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #1f2937;
    font-weight: 700;
    border-bottom: none;
}

.canjes-section .card-header h5 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.canjes-section .card-header small {
    opacity: 0.8;
    font-size: 0.85rem;
}

.canje-card {
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: var(--spacing-md);
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.canje-card:hover {
    border-color: var(--success-color);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.15);
    transform: translateY(-2px);
}

.canje-header {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.75rem;
    line-height: 1.3;
    min-height: 2.6rem;
    display: flex;
    align-items: center;
}

.canje-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.canje-lab {
    font-size: 0.8rem;
    color: var(--gray-600);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.canje-lab i {
    color: var(--primary-color);
}

.canje-plan {
    margin: var(--spacing-xs) 0;
}

.canje-plan .badge {
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
}

.canje-count {
    margin-top: auto;
    text-align: center;
}

.canje-count .badge {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
    font-weight: 600;
}

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 0.25em 0.5em;
    font-size: 0.75em;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--radius-sm);
}

.badge.bg-info {
    background-color: var(--info-color) !important;
    color: white;
}

.badge.bg-success {
    background-color: var(--success-color) !important;
    color: white;
}

/* ===== ALERTAS ===== */
.alert {
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
    border-radius: var(--radius);
}

.alert-success {
    color: #0f5132;
    background-color: #d1e7dd;
    border-color: #badbcc;
}

.alert-info {
    color: #055160;
    background-color: #cff4fc;
    border-color: #9eeaf9;
}

.alert-warning {
    color: #664d03;
    background-color: #fff3cd;
    border-color: #ffe69c;
}

.alert h5 {
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .registro-layout {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .compras-column,
    .formulario-column {
        flex: none;
        width: 100%;
    }
    
    .nueva-compra-card {
        margin-top: 0;
    }
    
    .nueva-compra-header {
        padding: var(--spacing-md);
    }
    
    .nueva-compra-body {
        padding: var(--spacing-md);
    }
    
    .clean-card .card-body,
    .clean-card .card-header {
        padding: var(--spacing-md);
    }
    
    .canje-card {
        margin-bottom: var(--spacing-md);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .btn-destacado {
        padding: 0.875rem 1.5rem;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .clean-main .container-fluid {
        padding: 0 var(--spacing-sm);
    }
    
    .nueva-compra-header h4 {
        font-size: 1.1rem;
    }
    
    .form-control-destacado,
    .form-control-clean {
        padding: 0.75rem 0.875rem;
        font-size: 0.9rem;
    }
}

/* ===== UTILIDADES ===== */
.text-center { text-align: center; }
.text-muted { color: var(--gray-500) !important; }
.text-primary { color: var(--primary-color) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--spacing-xs) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }

.d-flex { display: flex !important; }
.gap-3 { gap: var(--spacing-md) !important; }
.justify-content-center { justify-content: center !important; }
.align-items-center { align-items: center !important; }

/* ===== NAVEGACIÓN Y HEADER ===== */
.clean-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

.header-title h1 {
    color: var(--gray-800);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header-title p {
    color: var(--gray-600);
    margin: 0;
    font-size: 0.95rem;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.header-actions .btn-clean {
    white-space: nowrap;
}

.step-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    background: var(--gray-100);
    color: var(--gray-600);
}

.step-indicator.active {
    background: var(--primary-color);
    color: white;
}

.step-number {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: white;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.8rem;
}

.step-indicator.active .step-number {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* ===== SECCIÓN DE BIENVENIDA Y AYUDA ===== */
.welcome-search {
    text-align: center;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(37, 99, 235, 0.1) 100%);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(37, 99, 235, 0.1);
    position: relative;
    overflow: hidden;
}

.welcome-search::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

.welcome-search i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
    display: block;
}

.welcome-search h4 {
    color: var(--gray-800);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: 1.5rem;
}

.welcome-search p {
    color: var(--gray-600);
    font-size: 1rem;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.welcome-search h6 {
    color: var(--gray-700);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-size: 1rem;
}

.welcome-search ul {
    max-width: 900px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    text-align: left;
}

.welcome-search li {
    padding: var(--spacing-md);
    color: var(--gray-700);
    font-size: 0.9rem;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    line-height: 1.4;
    background: white;
    border-radius: var(--radius);
    border: 1px solid var(--gray-200);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.welcome-search li:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.welcome-search li i {
    font-size: 1rem;
    color: var(--success-color);
    margin: 0;
    flex-shrink: 0;
    margin-top: 1px;
    background: rgba(16, 185, 129, 0.1);
    padding: 6px;
    border-radius: 50%;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.welcome-search li span {
    flex: 1;
    font-weight: 500;
}

/* Responsive para welcome-search */
@media (max-width: 992px) and (min-width: 769px) {
    .welcome-search ul {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .welcome-search {
        padding: var(--spacing-xl);
        text-align: center;
    }
    
    .welcome-search i {
        font-size: 2.5rem;
    }
    
    .welcome-search h4 {
        font-size: 1.3rem;
    }
    
    .welcome-search ul {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
        text-align: left;
    }
    
    .welcome-search li {
        font-size: 0.85rem;
        padding: var(--spacing-sm);
    }
    
    .welcome-search li i {
        width: 24px;
        height: 24px;
        font-size: 0.8rem;
    }
}

/* ===== BOTÓN FLOTANTE DE AYUDA ===== */
.help-floating-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
    border: none;
    cursor: pointer;
}

.help-floating-btn:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 6px 25px rgba(37, 99, 235, 0.4);
    color: white;
    text-decoration: none;
}

.help-floating-btn:active {
    transform: scale(0.95);
}

.help-floating-btn i {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

/* Tooltip para el botón de ayuda */
.help-floating-btn::before {
    content: 'Ayuda';
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gray-800);
    color: white;
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
}

.help-floating-btn::after {
    content: '';
    position: absolute;
    right: 62px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--gray-800);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    pointer-events: none;
}

.help-floating-btn:hover::before,
.help-floating-btn:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Responsive para el botón flotante */
@media (max-width: 768px) {
    .help-floating-btn {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .help-floating-btn::before {
        display: none;
    }
    
    .help-floating-btn::after {
        display: none;
    }
}

/* ===== FOOTER LIMPIO ===== */
.clean-footer {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    border-top: 1px solid var(--gray-200);
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-2xl);
}

.clean-footer .container-fluid {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.clean-footer .row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.clean-footer .col-md-6 {
    flex: 1;
}

.clean-footer .text-md-end {
    text-align: right;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.footer-brand i {
    font-size: 1.5rem;
}

.footer-text {
    color: var(--gray-600);
    margin: 0;
    font-size: 0.85rem;
    line-height: 1.5;
}

.footer-dev-credit {
    color: var(--primary-color);
    margin: 0;
    font-size: 0.75rem;
    line-height: 1.4;
    font-style: italic;
    opacity: 0.8;
}

.footer-dev-credit i {
    color: #e74c3c;
    margin: 0 4px;
    font-size: 0.8rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    justify-content: flex-end;
    flex-wrap: wrap;
    align-items: center;
}

.footer-links a {
    color: var(--gray-600);
    text-decoration: none;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all 0.3s ease;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    white-space: nowrap;
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.footer-links a i {
    font-size: 0.75rem;
}

/* Responsive para footer */
@media (max-width: 768px) {
    .clean-footer {
        padding: var(--spacing-xl) 0;
        text-align: center;
    }
    
    .clean-footer .row {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .footer-links {
        justify-content: center;
        gap: var(--spacing-sm);
    }
    
    .footer-links a {
        font-size: 0.8rem;
        padding: var(--spacing-xs);
    }
    
    .footer-brand {
        justify-content: center;
        font-size: 1.1rem;
    }
    
    .footer-brand i {
        font-size: 1.3rem;
    }
    
    .footer-text {
        font-size: 0.8rem;
    }
}