/* ==================== Variables ==================== */
:root {
    --primary-color: #C41E3A;
    --secondary-color: #1B365D;
    --background-color: #FAFBFC;
    --text-color: #2C3E50;
    --text-light: #6C757D;
    --success-color: #25D366;
    --border-color: #DEE2E6;
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: var(--background-color);
}

/* ==================== Loading ==================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.3s, visibility 0.3s;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ==================== Hero Section ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(135deg, #1B365D 0%, var(--secondary-color) 50%, var(--primary-color) 100%);
    color: white;
    padding: 2rem;
    position: relative;
}

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease;
}

.hero-logo {
    width: 140px;
    height: auto;
    margin-bottom: 2rem;
    background: white;
    padding: 15px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: #FFFFFF;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.2);
}

.hero p {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: 2.5rem;
    opacity: 0.95;
}

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

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    font-size: 2rem;
    animation: bounce 2s infinite;
    opacity: 0.7;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ==================== Sections ==================== */
.section {
    padding: 4rem 2rem;
}

.section-alt {
    background: white;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 1rem;
    letter-spacing: 0.01em;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* ==================== About Section ==================== */
.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
    text-align: center;
    max-width: 800px;
    margin: 2rem auto;
    color: var(--text-light);
}

/* ==================== Products Section ==================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.product-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid var(--border-color);
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.12);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-card-content {
    padding: 1.5rem;
}

.product-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.product-card p {
    color: var(--text-light);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.product-card .specs {
    font-size: 0.875rem;
    color: var(--primary-color);
    font-weight: 500;
}

/* ==================== Contact Section ==================== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
}

.contact-icon {
    font-size: 2.5rem;
}

.contact-item h3 {
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    color: var(--text-color);
}

.contact-item p {
    color: var(--text-light);
    word-break: break-word;
}

.contact-form-wrapper {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border: 1px solid var(--border-color);
}

.contact-form-wrapper h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-form textarea {
    resize: vertical;
    min-height: 100px;
}

.form-message {
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
    text-align: center;
    font-weight: 500;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    text-align: center;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
}

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

.btn-primary:hover {
    background: #003d7a;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

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

/* ==================== WhatsApp Button ==================== */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
}

.whatsapp-float a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--success-color);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    transition: transform 0.3s;
    animation: pulse 2s infinite;
}

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

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    50% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
}

/* ==================== Footer ==================== */
.footer {
    background: #1a1a1a;
    color: rgba(255, 255, 255, 0.8);
    padding: 2rem;
    text-align: center;
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.125rem;
    }
    
    .hero-logo {
        width: 80px;
        height: 80px;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .section {
        padding: 3rem 1.5rem;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-form-wrapper {
        padding: 1.5rem;
    }
    
    .whatsapp-float {
        bottom: 1rem;
        right: 1rem;
    }
    
    .whatsapp-float a {
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
}