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

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --accent: #f59e0b;
    --dark: #1e293b;
    --light: #f8fafc;
    --white: #ffffff;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-500: #64748b;
    --gray-700: #334155;
    --gray-900: #0f172a;
    --success: #10b981;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-700);
    background: var(--white);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--gray-900);
    font-weight: 700;
    line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: 1.25rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

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

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

/* Navbar */
.navbar {
    background: var(--white);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
}

.logo-icon {
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    color: var(--gray-700);
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
}

.nav-phone {
    background: var(--primary);
    color: var(--white) !important;
    padding: 8px 16px;
    border-radius: 6px;
}

.nav-phone:hover {
    background: var(--primary-dark);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: var(--white);
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero .btn-secondary {
    border-color: var(--white);
    color: var(--white);
}

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

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--gray-100);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--white);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

/* Products Section */
.products-preview {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header p {
    color: var(--gray-500);
    font-size: 1.125rem;
    margin-top: 8px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.product-card {
    background: var(--gray-100);
    padding: 32px;
    border-radius: 12px;
    text-align: center;
    transition: all 0.3s;
}

.product-card:hover {
    background: var(--primary);
    color: var(--white);
}

.product-card:hover h3,
.product-card:hover p {
    color: var(--white);
}

.product-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
}

.product-link {
    display: inline-block;
    margin-top: 16px;
    color: var(--primary);
    font-weight: 600;
}

.product-card:hover .product-link {
    color: var(--white);
}

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

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 60px 0;
    text-align: center;
}

.page-header h1 {
    color: var(--white);
    margin-bottom: 8px;
}

.page-header p {
    opacity: 0.9;
}

/* Products Page */
.products-full {
    padding: 60px 0;
}

.products-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.product-item {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s;
}

.product-item:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.product-image {
    height: 200px;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.product-info {
    padding: 24px;
}

.product-info h3 {
    margin-bottom: 8px;
}

.product-info p {
    color: var(--gray-500);
    margin-bottom: 16px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.product-features span {
    background: var(--gray-100);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    color: var(--gray-700);
}

/* About Page */
.about-content {
    padding: 60px 0;
}

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

.about-text h2 {
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
    color: var(--gray-700);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.stat-item {
    text-align: center;
    padding: 24px;
    background: var(--gray-100);
    border-radius: 12px;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    color: var(--gray-500);
    font-size: 0.875rem;
}

.about-image {
    background: var(--primary);
    border-radius: 16px;
    padding: 60px;
    text-align: center;
    color: var(--white);
}

.about-image-icon {
    font-size: 6rem;
    margin-bottom: 20px;
}

/* Contact Page */
.contact-section {
    padding: 60px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h2 {
    margin-bottom: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.contact-form {
    background: var(--gray-100);
    padding: 40px;
    border-radius: 16px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-900);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

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

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

.form-submit {
    width: 100%;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 20px;
}

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

.footer-col h4 {
    color: var(--white);
    margin-bottom: 20px;
}

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--gray-700);
    padding-top: 20px;
    text-align: center;
    font-size: 0.875rem;
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
    transition: all 0.3s;
    z-index: 999;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    z-index: 999;
    padding: 80px 20px 20px;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.mobile-menu a {
    font-size: 1.25rem;
    font-weight: 500;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

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

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

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

    .hero-buttons {
        flex-direction: column;
    }
}