:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #25D366;
    --header-color: #2c5282;
    --header-light: #4299e1;
    --header-gradient: linear-gradient(135deg, #2c5282 0%, #4299e1 100%);
    --light-color: #f8f9fa;
    --dark-color: #2c3e50;
    --text-color: #333;
    --border-color: #eaeaea;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
    line-height: 1.6;
}

/* Header/Navigation */
.navbar {
    background: var(--header-gradient) !important;
    box-shadow: 0 4px 12px rgba(44, 82, 130, 0.15);
    padding-top: 0.8rem;
    padding-bottom: 0.8rem;
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.8rem;
    color: white !important;
    display: flex;
    align-items: center;
}

.navbar-brand i {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px;
    border-radius: 8px;
    margin-right: 10px;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    margin: 0 3px;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.15);
    color: white !important;
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
}

.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, 0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.contact-btn {
    background-color: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white !important;
    border-radius: 6px;
    padding: 8px 20px !important;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    background-color: white;
    color: var(--header-color) !important;
}

.header-strip {
    background: linear-gradient(90deg, #2b6cb0 0%, #4299e1 50%, #2b6cb0 100%);
    color: white;
    padding: 8px 0;
    font-size: 0.9rem;
    text-align: center;
}

.header-strip i {
    margin-right: 8px;
    color: #FFD700;
}

.header-strip a {
    color: white;
    text-decoration: underline;
    font-weight: 600;
}

.hero-section {
    background: linear-gradient(rgba(44, 82, 130, 0.85), rgba(66, 153, 225, 0.9)), 
                url('https://images.unsplash.com/photo-1567401893414-76b7b1e5a7a5?ixlib=rb-4.0.3&auto=format&fit=crop&w=2070&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    padding: 6rem 0;
    margin-bottom: 3rem;
    position: relative;
}

.hero-section:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #63b3ed, #4299e1, #63b3ed);
}

.section-title {
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 30px;
}

.section-title:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 60px;
    height: 3px;
    background-color: var(--header-light);
}

.text-center .section-title:after {
    left: 50%;
    transform: translateX(-50%);
}

.card {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.card-img-top {
    height: 220px;
    object-fit: cover;
    width: 100%;
}

.card-body {
    padding: 1.5rem;
}

.product-price {
    font-weight: 700;
    color: var(--header-color);
    font-size: 1.2rem;
}

.category-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--header-color);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.filter-btn {
    border: 1px solid var(--border-color);
    background: white;
    padding: 8px 20px;
    margin: 5px;
    border-radius: 30px;
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--text-color);
    display: inline-block;
}

.filter-btn:hover, .filter-btn.active {
    background-color: var(--header-light);
    color: white;
    border-color: var(--header-light);
}

.whatsapp-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 15px;
    border-radius: 4px;
    font-weight: 600;
    transition: background-color 0.3s ease;
    text-decoration: none;
}

.whatsapp-btn:hover {
    background-color: #128C7E;
    color: white;
}

.whatsapp-btn i {
    margin-right: 5px;
    font-size: 1.1rem;
}

.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--accent-color);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    z-index: 1000;
    transition: transform 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    color: white;
}

footer {
    background: var(--header-gradient);
    color: white;
    margin-top: 4rem;
}

.modal-header {
    background-color: var(--accent-color);
    color: white;
}

.modal-header .btn-close {
    filter: invert(1);
}

.help-text {
    font-size: 0.9rem;
    color: #666;
    margin-top: 5px;
}

.texture-bg {
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='%232c5282' fill-opacity='0.05' fill-rule='evenodd'/%3E%3C/svg%3E");
}

.blue-accent {
    color: var(--header-light);
}

.bg-blue-light {
    background-color: rgba(66, 153, 225, 0.1);
}

@media (max-width: 768px) {
    .hero-section {
        padding: 4rem 0;
    }
    
    .card-img-top {
        height: 180px;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .header-strip {
        font-size: 0.8rem;
        padding: 6px 0;
    }
}