/* ===== VARIABLES GLOBALES ===== */
:root {
    /* Colores principales - Modo claro */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #ec489a;
    --accent-color: #06b6d4;
    
    /* Fondos */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    
    /* Textos */
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    
    /* Bordes */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Transiciones */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Layout */
    --layout-max-width: 1400px;
    --page-gutter: clamp(1rem, 3vw, 2.5rem);
    
    /* Border radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
}

/* Modo oscuro */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-card: #1e293b;
    
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --border-color: #334155;
    --border-light: #1e293b;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background:
        radial-gradient(circle at top left, color-mix(in srgb, var(--primary-color) 6%, transparent), transparent 24%),
        radial-gradient(circle at top right, color-mix(in srgb, var(--secondary-color) 7%, transparent), transparent 26%),
        linear-gradient(180deg, var(--bg-secondary), var(--bg-primary) 18rem);
    color: var(--text-primary);
    line-height: 1.5;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    overflow-x: hidden;
}

/* ===== HEADER Y NAVEGACIÓN ===== */
.main-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    background: rgba(var(--bg-primary-rgb, 15, 23, 42), 0.9);
}

[data-theme="light"] .main-header {
    background: rgba(255, 255, 255, 0.9);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: calc(var(--layout-max-width) + (var(--page-gutter) * 2));
    margin: 0 auto;
    padding: 0 var(--page-gutter);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-wrapper .logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    transition: transform var(--transition-fast);
}

.logo-wrapper .logo-link:hover {
    transform: scale(1.05);
}

.logo-icon {
    font-size: 2rem;
    animation: bounce 2s ease-in-out infinite;
}

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

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-main {
    font-size: 1.25rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    list-style: none;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    font-weight: 500;
    position: relative;
}

.nav-link i {
    font-size: 1rem;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--bg-tertiary);
}

.nav-link.active {
    color: var(--primary-color);
    background: var(--bg-tertiary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 30%;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
}

.cart-badge {
    background: var(--secondary-color);
    color: white;
    border-radius: var(--radius-full);
    padding: 2px 6px;
    font-size: 0.7rem;
    font-weight: 600;
    margin-left: 4px;
}

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

.icon-btn {
    background: var(--bg-tertiary);
    border: none;
    padding: 10px;
    border-radius: var(--radius-full);
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.profile-preview {
    position: relative;
    cursor: pointer;
}

.profile-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 2px solid var(--primary-color);
    transition: transform var(--transition-fast);
}

.profile-avatar:hover {
    transform: scale(1.05);
}

.profile-dropdown {
    position: absolute;
    top: 110%;
    right: 0;
    width: 260px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    z-index: 100;
}

.profile-preview:hover .profile-dropdown,
.profile-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: var(--spacing-sm);
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.dropdown-header strong {
    display: block;
    color: var(--text-primary);
}

.dropdown-header span {
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

.profile-dropdown a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px var(--spacing-sm);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.profile-dropdown a:hover {
    background: var(--bg-tertiary);
    color: var(--primary-color);
    padding-left: calc(var(--spacing-sm) + 8px);
}

.mobile-menu-btn {
    display: none;
}

/* ===== BARRA DE BÚSQUEDA ===== */
.search-bar {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.search-bar.is-hidden {
    display: none;
}

.search-container {
    max-width: min(760px, calc(100vw - (var(--page-gutter) * 2)));
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    padding: 8px 16px;
}

.search-container i {
    color: var(--text-muted);
}

.search-container input {
    flex: 1;
    background: none;
    border: none;
    padding: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
}

.search-container input::placeholder {
    color: var(--text-muted);
}

.close-search-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

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

.search-results {
    max-width: min(760px, calc(100vw - (var(--page-gutter) * 2)));
    margin: var(--spacing-sm) auto 0;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    max-height: 400px;
    overflow-y: auto;
}

/* ===== CONTENIDO PRINCIPAL ===== */
.main-content {
    min-height: calc(100vh - 300px);
    padding: var(--spacing-lg) 0 var(--spacing-xl);
}

#page-content {
    max-width: calc(var(--layout-max-width) + (var(--page-gutter) * 2));
    margin: 0 auto;
    padding: 0 var(--page-gutter);
}

#page-content > div[id$="-content"] {
    position: relative;
    animation: pageContentIn 0.35s ease;
}

@keyframes pageContentIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== FOOTER ===== */
.main-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: var(--spacing-xl);
}

.footer-content {
    max-width: calc(var(--layout-max-width) + (var(--page-gutter) * 2));
    margin: 0 auto;
    padding: var(--spacing-xl) var(--page-gutter);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.footer-section p {
    color: var(--text-muted);
    margin-bottom: var(--spacing-sm);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.social-links a {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.footer-bottom {
    max-width: calc(var(--layout-max-width) + (var(--page-gutter) * 2));
    margin: 0 auto;
    padding: var(--spacing-md) var(--page-gutter);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-payments {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    background: var(--bg-card);
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    animation: slideInRight 0.3s ease;
}

.toast.success { border-left-color: #10b981; }
.toast.error { border-left-color: #ef4444; }
.toast.warning { border-left-color: #f59e0b; }
.toast.info { border-left-color: var(--primary-color); }

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== MODALES ===== */
.modal-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    backdrop-filter: blur(4px);
}

.modal-container.is-hidden {
    display: none;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    max-width: 90%;
    width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalIn 0.3s ease;
}

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

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

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}

.modal-body {
    padding: var(--spacing-md);
}

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

/* ===== UTILIDADES ===== */
.container {
    max-width: calc(var(--layout-max-width) + (var(--page-gutter) * 2));
    margin: 0 auto;
    padding: 0 var(--page-gutter);
}

.text-center { text-align: center; }
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.is-hidden {
    display: none !important;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .nav-links {
        gap: var(--spacing-sm);
    }
    
    .nav-link span {
        display: none;
    }
    
    .nav-link i {
        font-size: 1.25rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 80%;
        height: calc(100vh - 70px);
        background: var(--bg-primary);
        transition: left var(--transition-normal);
        z-index: 999;
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-links {
        flex-direction: column;
        padding: var(--spacing-md);
    }
    
    .nav-links li a {
        padding: 12px 16px;
    }
    
    .nav-links li a span {
        display: inline;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .toast {
        min-width: 250px;
    }
}

/* ===== BOTONES DE AUTENTICACIÓN EN HEADER ===== */
.auth-buttons {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.auth-buttons .btn-sm {
    padding: 6px 14px;
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.auth-buttons .btn-outline {
    background: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

.auth-buttons .btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.auth-buttons .btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    color: white;
}

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

/* ===== PÁGINA DE ACCESO RESTRINGIDO ===== */
.auth-required-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    padding: var(--spacing-xl);
}

.auth-required-page .card {
    max-width: 450px;
    width: 100%;
    padding: 2.5rem;
    text-align: center;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-color);
}

.auth-required-page .card i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.auth-required-page .card h2 {
    margin-bottom: 1rem;
    font-size: 1.75rem;
    color: var(--text-primary);
}

.auth-required-page .card p {
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.auth-buttons-page {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.auth-buttons-page .btn {
    padding: 10px 24px;
    font-size: 0.9rem;
}

/* ===== RESPONSIVE PARA BOTONES DE AUTENTICACIÓN ===== */
@media (max-width: 768px) {
    .auth-buttons {
        gap: 0.5rem;
    }
    
    .auth-buttons .btn-sm {
        padding: 6px 10px;
    }
    
    .auth-buttons .btn-sm span {
        display: none;
    }
    
    .auth-buttons .btn-sm i {
        margin: 0;
        font-size: 1rem;
    }
    
    .auth-required-page .card {
        padding: 1.5rem;
    }
    
    .auth-required-page .card h2 {
        font-size: 1.4rem;
    }
    
    .auth-buttons-page {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .auth-buttons-page .btn {
        width: 100%;
    }
}