/* ================================
   CSS Variables & Reset
   ================================ */
:root {
    --primary: #2C3E50;
    --primary-light: #3498DB;
    --primary-dark: #1a252f;
    --secondary: #E67E22;
    --accent: #1ABC9C;
    --text: #333333;
    --text-light: #666666;
    --text-muted: #999999;
    --bg: #FFFFFF;
    --bg-light: #F8F9FA;
    --bg-alt: #EEF2F7;
    --border: #E0E0E0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background-color: var(--bg);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

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

/* ================================
   Typography
   ================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.5rem); }

/* ================================
   Buttons
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(44, 62, 80, 0.3);
}

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

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

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

/* ================================
   Navigation
   ================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav-logo img {
    height: 50px;
    width: auto;
}

.nav-menu {
    display: flex;
    gap: 40px;
}

.nav-link {
    font-weight: 500;
    color: var(--text);
    position: relative;
    padding: 8px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-light);
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-toggle {
    display: flex;
    background: var(--bg-alt);
    border-radius: 25px;
    padding: 4px;
}

.lang-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    border-radius: 20px;
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary);
    cursor: pointer;
}

/* ================================
   Hero Section
   ================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 20px 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%232C3E50" fill-opacity="0.05" d="M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat center bottom;
    background-size: cover;
    opacity: 0.5;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 700px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(26, 188, 156, 0.1);
    color: var(--accent);
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.hero h1 {
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
}

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

.hero-stats {
    display: flex;
    gap: 60px;
    margin-top: 80px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.stat-item {
    text-align: left;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 8px;
}

.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.hero-scroll a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: white;
    border-radius: 50%;
    box-shadow: var(--shadow);
    color: var(--primary);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* ================================
   Section Styles
   ================================ */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header.light {
    color: white;
}

.section-header.light h2 {
    color: white;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(52, 152, 219, 0.1);
    color: var(--primary-light);
    border-radius: 25px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.section-header.light .section-tag {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

/* ================================
   About Section
   ================================ */
.about {
    background: var(--bg);
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.about-card {
    display: flex;
    gap: 16px;
    padding: 24px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.about-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.about-info h3 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.about-info p {
    font-size: 0.875rem;
    color: var(--text-light);
}

.mission-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    padding: 40px;
    border-radius: var(--radius-lg);
    color: white;
    height: 100%;
}

.mission-card h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.mission-card blockquote {
    font-size: 1.25rem;
    font-style: italic;
    padding-left: 20px;
    border-left: 3px solid rgba(255, 255, 255, 0.3);
    margin-bottom: 20px;
    opacity: 0.95;
}

.mission-card p {
    opacity: 0.9;
    line-height: 1.8;
}

/* ================================
   Strengths Section
   ================================ */
.strengths {
    background: var(--bg-alt);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.strength-card {
    background: white;
    padding: 40px 30px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.strength-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.strength-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(52, 152, 219, 0.1) 0%, rgba(26, 188, 156, 0.1) 100%);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--primary-light);
}

.strength-card h3 {
    font-size: 1.125rem;
    margin-bottom: 12px;
}

.strength-card p {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ================================
   Services Section
   ================================ */
.services {
    background: var(--bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    position: relative;
    background: white;
    padding: 40px 30px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.service-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 3rem;
    font-weight: 800;
    color: var(--bg-alt);
    line-height: 1;
}

.service-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 16px;
}

.service-features {
    margin-bottom: 24px;
}

.service-features li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    font-size: 0.9rem;
    color: var(--text-light);
}

.service-features li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 0.75rem;
}

.service-price {
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.service-price .price {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.service-price.highlight .price {
    color: var(--accent);
}

.service-price .price-note {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ================================
   Products Section
   ================================ */
.products {
    background: var(--bg-alt);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.product-card {
    background: white;
    padding: 30px;
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}

.product-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-alt);
    border-radius: 50%;
    font-size: 1.75rem;
    color: var(--primary-light);
    transition: var(--transition);
}

.product-card:hover .product-icon {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    color: white;
}

.product-card h3 {
    font-size: 1rem;
    margin-bottom: 10px;
}

.product-card p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ================================
   Why Us Section
   ================================ */
.why-us {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.why-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px 30px;
    border-radius: var(--radius);
    text-align: center;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.why-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.why-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 2rem;
    color: white;
}

.why-card h3 {
    color: white;
    font-size: 1.125rem;
    margin-bottom: 12px;
}

.why-card p {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ================================
   CTA Section
   ================================ */
.cta {
    background: var(--bg-alt);
    padding: 80px 0;
}

.cta-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta h2 {
    margin-bottom: 16px;
}

.cta p {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 32px;
}

/* ================================
   Contact Section
   ================================ */
.contact {
    background: var(--bg);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius);
    transition: var(--transition);
}

.contact-card:hover {
    background: white;
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
    border-radius: var(--radius-sm);
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-details h3 {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.contact-details p {
    font-size: 1rem;
    font-weight: 500;
}

.contact-details a {
    color: var(--primary);
}

.contact-details a:hover {
    color: var(--primary-light);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border-radius: 50%;
    font-size: 1.25rem;
    color: var(--text);
    transition: var(--transition);
}

.social-link:hover {
    transform: translateY(-3px);
}

.social-link.whatsapp:hover {
    background: #25D366;
    color: white;
}

.social-link.email:hover {
    background: var(--primary-light);
    color: white;
}

.social-link.linkedin:hover {
    background: #0077B5;
    color: white;
}

/* Contact Form */
.contact-form-container {
    background: var(--bg-light);
    padding: 40px;
    border-radius: var(--radius-lg);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: span 2;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

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

.contact-form .btn {
    grid-column: span 2;
    margin-top: 10px;
}

/* ================================
   Footer
   ================================ */
.footer {
    background: var(--primary-dark);
    color: white;
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    height: 50px;
    margin-bottom: 20px;
}

.footer-brand p {
    opacity: 0.8;
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 20px;
}

.footer ul li {
    margin-bottom: 12px;
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--primary-light);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    width: 20px;
    color: var(--primary-light);
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.7;
    font-size: 0.875rem;
}

/* ================================
   WhatsApp Float Button
   ================================ */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #25D366;
    color: white;
    border-radius: 50%;
    font-size: 2rem;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
}

/* ================================
   Back to Top Button
   ================================ */
.back-to-top {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 998;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-light);
    transform: translateY(-3px);
}

/* ================================
   Responsive Design
   ================================ */
@media (max-width: 1200px) {
    .strengths-grid,
    .why-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        gap: 0;
        padding: 20px;
        box-shadow: var(--shadow);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-link {
        padding: 15px 20px;
        border-bottom: 1px solid var(--border);
    }

    .nav-toggle {
        display: block;
    }

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

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

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }

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

    .hero-buttons .btn {
        width: 100%;
    }

    .strengths-grid,
    .services-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .form-group.full-width {
        grid-column: span 1;
    }

    .contact-form .btn {
        grid-column: span 1;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
    }

    .back-to-top {
        bottom: 85px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .products-grid {
        grid-template-columns: 1fr;
    }

    .contact-form-container {
        padding: 24px;
    }

    .service-card,
    .strength-card,
    .why-card,
    .product-card {
        padding: 24px 20px;
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}