/* ==========================================
   TuPedido - Estilos principales
   Sistema SaaS de Pedidos Online
   ========================================== */

/* Variables CSS */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    --dark: #1f2937;
    --gray: #6b7280;
    --gray-light: #9ca3af;
    --gray-lighter: #e5e7eb;
    --light: #f3f4f6;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

/* Reset y Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
}

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

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

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

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

.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
}

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

.btn-secondary {
    background: var(--white);
    color: var(--dark);
    border: 2px solid var(--gray-lighter);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
}

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-block {
    width: 100%;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    transition: var(--transition);
}

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

.card-header {
    border-bottom: 1px solid var(--gray-lighter);
    padding-bottom: 16px;
    margin-bottom: 16px;
}

.card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark);
}

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

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

.form-control {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    border: 2px solid var(--gray-lighter);
    border-radius: var(--radius-sm);
    transition: var(--transition);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

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

.form-error {
    color: var(--danger);
    font-size: 13px;
    margin-top: 6px;
}

/* Alertas */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--secondary);
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border-left: 4px solid var(--info);
}

/* Tablas */
.table-responsive {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--gray-lighter);
}

.table th {
    background: var(--light);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gray);
}

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

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

.badge-secondary {
    background: var(--gray-lighter);
    color: var(--gray);
}

/* ==========================================
   LANDING PAGE
   ========================================== */

.landing-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: 16px 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.landing-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.landing-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
}

.landing-nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

.landing-nav a {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

.landing-nav a:hover {
    color: var(--white);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding-top: 80px;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text h1 {
    font-size: 52px;
    font-weight: 800;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-text p {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.hero-buttons .btn-primary {
    background: var(--white);
    color: var(--primary);
}

.hero-buttons .btn-secondary {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.5);
    color: var(--white);
}

.hero-image {
    text-align: center;
}

.hero-image img {
    max-width: 500px;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.2));
}

.features {
    padding: 100px 0;
    background: var(--white);
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 18px;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    text-align: center;
    padding: 40px 30px;
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 36px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray);
}

.landing-footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    font-size: 24px;
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--gray-light);
}

.footer-links h4 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
    color: var(--gray-light);
}

.footer-links a {
    display: block;
    color: var(--white);
    margin-bottom: 12px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: var(--gray-light);
}

/* ==========================================
   AUTH PAGES (Login, Registro)
   ========================================== */

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    padding: 20px;
}

.auth-box {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 440px;
    padding: 48px 40px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.auth-logo p {
    color: var(--gray);
    margin-top: 8px;
}

.auth-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-lighter);
    color: var(--gray);
}

/* ==========================================
   PANEL / DASHBOARD
   ========================================== */

.panel-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    background: var(--dark);
    padding: 24px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-logo {
    padding: 0 24px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 24px;
}

.sidebar-logo h2 {
    color: var(--white);
    font-size: 18px;
    font-weight: 600;
}

.sidebar-logo span {
    color: var(--gray-light);
    font-size: 13px;
}

.sidebar-nav {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 4px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--gray-light);
    font-weight: 500;
    transition: var(--transition);
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.sidebar-nav a svg {
    width: 20px;
    height: 20px;
}

.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 24px 32px;
    background: var(--light);
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.page-title {
    font-size: 28px;
    font-weight: 700;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}

.stat-card .stat-icon.blue { background: #dbeafe; }
.stat-card .stat-icon.green { background: #d1fae5; }
.stat-card .stat-icon.purple { background: #ede9fe; }
.stat-card .stat-icon.orange { background: #ffedd5; }

.stat-card .stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
}

.stat-card .stat-label {
    color: var(--gray);
    font-size: 14px;
}

/* ==========================================
   SITIO DEL NEGOCIO (Vista pública)
   ========================================== */

.negocio-header {
    background: var(--white);
    box-shadow: var(--shadow);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.negocio-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.negocio-name {
    font-size: 22px;
    font-weight: 700;
    color: var(--dark);
}

.cart-btn {
    background: var(--primary);
    color: var(--white);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.cart-count {
    background: var(--white);
    color: var(--primary);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
}

.categorias-nav {
    background: var(--white);
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-lighter);
    overflow-x: auto;
}

.categorias-list {
    display: flex;
    gap: 12px;
    list-style: none;
}

.categorias-list a {
    padding: 8px 20px;
    border-radius: 20px;
    background: var(--light);
    color: var(--dark);
    font-weight: 500;
    white-space: nowrap;
}

.categorias-list a:hover,
.categorias-list a.active {
    background: var(--primary);
    color: var(--white);
}

.productos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    padding: 32px 0;
}

.producto-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.producto-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: var(--gray-lighter);
}

.producto-info {
    padding: 20px;
}

.producto-nombre {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.producto-descripcion {
    color: var(--gray);
    font-size: 14px;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

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

.producto-precio {
    font-size: 22px;
    font-weight: 700;
    color: var(--primary);
}

.add-cart-btn {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.add-cart-btn:hover {
    background: var(--primary-dark);
}

/* Carrito Sidebar */
.cart-sidebar {
    position: fixed;
    top: 0;
    right: -400px;
    width: 400px;
    height: 100vh;
    background: var(--white);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.cart-sidebar.open {
    right: 0;
}

.cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.cart-overlay.open {
    opacity: 1;
    visibility: visible;
}

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

.cart-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.cart-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray);
}

.cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.cart-item {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid var(--gray-lighter);
}

.cart-item-img {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    margin-bottom: 4px;
}

.cart-item-price {
    color: var(--primary);
    font-weight: 600;
}

.cart-item-qty {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.qty-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--gray-lighter);
    background: var(--white);
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
}

.cart-footer {
    padding: 20px;
    border-top: 1px solid var(--gray-lighter);
    background: var(--light);
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

/* ==========================================
   RESPONSIVE
   ========================================== */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-image {
        display: none;
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .sidebar {
        width: 220px;
    }

    .main-content {
        margin-left: 220px;
    }
}

@media (max-width: 768px) {
    .landing-nav {
        display: none;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .sidebar {
        position: fixed;
        left: -260px;
        z-index: 1000;
        width: 260px;
        transition: var(--transition);
    }

    .sidebar.open {
        left: 0;
    }

    .main-content {
        margin-left: 0;
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .cart-sidebar {
        width: 100%;
        right: -100%;
    }
}