:root {
    --primary-gradient: linear-gradient(135deg, #ff6b6b 0%, #ff8e53 100%);
    --secondary-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --success-gradient: linear-gradient(135deg, #2ed573 0%, #7bed9f 100%);
    --dark-gradient: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    --text-dark: #2d3748;
    --text-light: #718096;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Navbar Mejorada */
.navbar {
    background: var(--dark-gradient) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    padding: 0.8rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.6rem;
    color: white !important;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: 0.5px;
}

    .navbar-brand i {
        font-size: 1.8rem;
        background: var(--primary-gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        transition: all 0.3s ease;
        filter: drop-shadow(0 2px 4px rgba(255, 107, 107, 0.3));
    }

    .navbar-brand:hover {
        transform: scale(1.03);
        filter: brightness(1.1);
    }

        .navbar-brand:hover i {
            transform: rotate(-8deg) scale(1.1);
        }

/* Nav Links Mejorados */
.navbar-nav {
    gap: 5px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.85) !important;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 10px 18px !important;
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
}

    .nav-link i {
        font-size: 1.15rem;
        transition: all 0.3s ease;
    }

    .nav-link:hover {
        background: rgba(255, 255, 255, 0.15);
        transform: translateY(-2px);
        color: white !important;
        box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
    }

        .nav-link:hover i {
            transform: scale(1.15) translateY(-1px);
        }

    /* Badge del Carrito Corregido */
    .nav-link.position-relative {
        position: relative;
    }

.cart-badge {
    position: absolute;
    top: -5px;
    right: -8px;
    background: var(--primary-gradient);
    color: white;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(255, 107, 107, 0.5);
    animation: pulse 2s infinite;
    border: 2px solid #1a1a2e;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 2px 8px rgba(255, 107, 107, 0.5);
    }

    50% {
        transform: scale(1.15);
        box-shadow: 0 4px 12px rgba(255, 107, 107, 0.7);
    }
}

/* Efecto especial cuando el carrito tiene items */
.nav-link.position-relative:has(.cart-badge:not([style*="display: none"])) {
    animation: cartHasItems 0.5s ease;
}

@keyframes cartHasItems {
    0%, 100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* Contenedor Principal */
main {
    flex: 1;
    padding: 2rem 0;
}

.container {
    max-width: 1200px;
}

/* Tarjetas de Productos Mejoradas */
.card {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 2px solid #e2e8f0;
    border-radius: 20px;
    overflow: hidden;
    background: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

    .card:hover {
        transform: translateY(-10px) scale(1.02);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
        border-color: #4facfe;
    }

.product-image {
    height: 250px;
    object-fit: cover;
    transition: all 0.4s ease;
}

.card:hover .product-image {
    transform: scale(1.1);
}

/* Botones Mejorados */
.btn-primary {
    background: var(--secondary-gradient);
    border: none;
    padding: 12px 30px;
    border-radius: 12px;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(79, 172, 254, 0.3);
    position: relative;
    overflow: hidden;
}

    .btn-primary::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.3);
        transform: translate(-50%, -50%);
        transition: width 0.5s, height 0.5s;
    }

    .btn-primary:hover::before {
        width: 300px;
        height: 300px;
    }

    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 30px rgba(79, 172, 254, 0.4);
    }

.btn-success {
    background: var(--success-gradient);
    border: none;
    padding: 12px 30px;
    border-radius: 12px;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(46, 213, 115, 0.3);
}

    .btn-success:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 30px rgba(46, 213, 115, 0.4);
    }

.btn-danger {
    background: var(--primary-gradient);
    border: none;
    padding: 12px 30px;
    border-radius: 12px;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 8px 20px rgba(255, 107, 107, 0.3);
}

    .btn-danger:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 30px rgba(255, 107, 107, 0.4);
    }

/* Footer Mejorado */
footer {
    background: var(--dark-gradient);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.2);
    margin-top: auto;
}

    footer p {
        margin: 0;
        font-weight: 600;
        letter-spacing: 0.5px;
    }

    footer i.fa-heart {
        animation: heartbeat 1.5s ease infinite;
    }

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }

    10%, 30% {
        transform: scale(1.2);
    }

    20%, 40% {
        transform: scale(1);
    }
}

/* Badges Mejorados */
.badge {
    padding: 8px 15px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
}

.badge-success {
    background: var(--success-gradient);
    box-shadow: 0 4px 10px rgba(46, 213, 115, 0.3);
}

.badge-warning {
    background: linear-gradient(135deg, #ffd93d 0%, #ffb93d 100%);
    box-shadow: 0 4px 10px rgba(255, 193, 7, 0.3);
}

.badge-danger {
    background: var(--primary-gradient);
    box-shadow: 0 4px 10px rgba(255, 107, 107, 0.3);
}

/* Alertas Mejoradas */
.alert {
    border-radius: 15px;
    border: none;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    font-weight: 600;
}

.alert-success {
    background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
    color: #2ed573;
}

.alert-danger {
    background: linear-gradient(135deg, #ffebee 0%, #ffcdd2 100%);
    color: #ff6b6b;
}

.alert-info {
    background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
    color: #4facfe;
}

/* Títulos */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-dark);
    font-weight: 800;
}

/* Animación de carga */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

main > * {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive */
@media (max-width: 992px) {
    .navbar-brand {
        font-size: 1.4rem;
    }

    .nav-link {
        padding: 10px 15px !important;
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.3rem;
    }

    .navbar-nav {
        margin-top: 1rem;
        gap: 8px;
    }

    .nav-link {
        margin: 0;
        padding: 12px 15px !important;
        justify-content: flex-start;
        border-radius: 8px;
    }

    .cart-badge {
        position: static;
        margin-left: auto;
        min-width: 24px;
        height: 24px;
        font-size: 0.75rem;
    }

    .product-image {
        height: 180px;
    }

    .btn {
        font-size: 0.9rem;
        padding: 10px 20px;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.2rem;
    }

    .nav-link {
        font-size: 0.85rem;
    }
}

/* Spinner de carga */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* Navbar toggler mejorado */
.navbar-toggler {
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 8px 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

    .navbar-toggler:hover {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.5);
    }

    .navbar-toggler:focus {
        box-shadow: 0 0 0 3px rgba(79, 172, 254, 0.3);
    }

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}