/* ===== CSS Variables ===== */
:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    --secondary: #10B981;
    --accent: #F59E0B;
    --dark: #1F2937;
    --dark-light: #374151;
    --gray: #6B7280;
    --gray-light: #9CA3AF;
    --light: #F3F4F6;
    --white: #FFFFFF;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    background: var(--white);
}
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; }

/* ===== Navbar ===== */
.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: var(--shadow); padding: 15px 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; color: var(--primary); }
.logo-icon { font-size: 1.5rem; }
.nav-links { display: flex; gap: 30px; }
.nav-links a { color: var(--dark); font-weight: 500; position: relative; padding: 5px 0; }
.nav-links a::after {
    content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px;
    background: var(--primary); transition: var(--transition);
}

.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--primary); }
.nav-actions { display: flex; align-items: center; gap: 15px; }
.lang-switch {
    background: var(--light); border: none; padding: 8px 16px; border-radius: var(--radius-sm);
    cursor: pointer; font-weight: 500; transition: var(--transition);
}
.lang-switch:hover { background: var(--primary); color: var(--white); }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }

/* ===== Buttons ===== */
.btn {
    display: inline-block; padding: 12px 28px; border-radius: var(--radius-sm);
    font-weight: 600; cursor: pointer; transition: var(--transition); border: none;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.btn-outline { background: transparent; border: 2px solid var(--white); color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--primary); }
.btn-large { padding: 16px 36px; font-size: 1.1rem; }
.btn-full { width: 100%; text-align: center; }

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh; display: flex; align-items: center; position: relative;
    background: var(--gradient); color: var(--white); padding-top: 80px; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; overflow: hidden; }
.hero-shape {
    position: absolute; border-radius: 50%; opacity: 0.1;
    animation: float 20s ease-in-out infinite;
}
.shape-1 { width: 400px; height: 400px; background: var(--white); top: -100px; right: -100px; }
.shape-2 { width: 300px; height: 300px; background: var(--accent); bottom: -50px; left: -50px; animation-delay: -5s; }
.shape-3 { width: 200px; height: 200px; background: var(--secondary); top: 50%; left: 50%; animation-delay: -10s; }
@keyframes float {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(30px, 30px) rotate(180deg); }
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.2; margin-bottom: 20px; }
.hero-subtitle { font-size: 1.25rem; opacity: 0.9; margin-bottom: 30px; }
.hero-buttons { display: flex; gap: 15px; margin-bottom: 50px; }
.hero-stats { display: flex; gap: 50px; }
.stat-item { text-align: center; }
.stat-number { display: block; font-size: 2.5rem; font-weight: 800; }
.stat-label { font-size: 0.9rem; opacity: 0.8; }

/* ===== Page Hero ===== */
.page-hero {
    background: var(--gradient); color: var(--white); padding: 150px 0 80px;
    text-align: center;
}
.page-hero h1 { font-size: 2.5rem; font-weight: 800; margin-bottom: 15px; }
.page-hero p { font-size: 1.1rem; opacity: 0.9; max-width: 600px; margin: 0 auto; }

/* ===== Section Styles ===== */
.section-header { text-align: center; margin-bottom: 50px; }
.section-header h2 { font-size: 2rem; font-weight: 700; color: var(--dark); margin-bottom: 10px; }
.section-header p { color: var(--gray); font-size: 1.1rem; }

/* ===== Features Section ===== */
.features { padding: 100px 0; background: var(--light); }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.feature-card {
    background: var(--white); padding: 40px 30px; border-radius: var(--radius);
    text-align: center; transition: var(--transition);
}
.feature-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.feature-icon { font-size: 3rem; margin-bottom: 20px; }
.feature-card h3 { font-size: 1.25rem; margin-bottom: 15px; color: var(--dark); }
.feature-card p { color: var(--gray); font-size: 0.95rem; }

/* ===== Services Preview ===== */
.services-preview { padding: 100px 0; }
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.service-card {
    background: var(--white); padding: 40px; border-radius: var(--radius);
    border: 1px solid var(--light); transition: var(--transition);
}
.service-card:hover { border-color: var(--primary); box-shadow: var(--shadow-lg); }
.service-icon { font-size: 2.5rem; margin-bottom: 20px; }
.service-card h3 { font-size: 1.25rem; margin-bottom: 15px; color: var(--dark); }
.service-card p { color: var(--gray); margin-bottom: 20px; }
.service-link { color: var(--primary); font-weight: 600; }
.service-link:hover { color: var(--primary-dark); }

/* ===== CTA Section ===== */
.cta-section { padding: 100px 0; background: var(--gradient); }
.cta-content { text-align: center; color: var(--white); }
.cta-content h2 { font-size: 2.5rem; font-weight: 700; margin-bottom: 15px; }
.cta-content p { font-size: 1.1rem; opacity: 0.9; margin-bottom: 30px; }
.cta-section .btn-primary { background: var(--white); color: var(--primary); }
.cta-section .btn-primary:hover { background: var(--light); }

/* ===== About Page ===== */
.about-intro { padding: 100px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.about-content h2 { font-size: 2rem; margin-bottom: 20px; color: var(--dark); }
.about-content p { color: var(--gray); margin-bottom: 15px; }
.about-image .image-placeholder {
    background: var(--light); border-radius: var(--radius); height: 400px;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.placeholder-icon { font-size: 5rem; margin-bottom: 15px; }

.mission-vision { padding: 80px 0; background: var(--light); }
.mv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.mv-card {
    background: var(--white); padding: 40px; border-radius: var(--radius);
    text-align: center; transition: var(--transition);
}
.mv-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.mv-icon { font-size: 3rem; margin-bottom: 20px; }
.mv-card h3 { font-size: 1.25rem; margin-bottom: 15px; color: var(--dark); }
.mv-card p { color: var(--gray); }

.company-info { padding: 100px 0; }
.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.info-card {
    background: var(--light); padding: 30px; border-radius: var(--radius);
    border-left: 4px solid var(--primary);
}
.info-card h4 { color: var(--primary); margin-bottom: 10px; font-size: 0.9rem; text-transform: uppercase; }
.info-card p { color: var(--dark); font-weight: 500; }
.info-card .info-sub { color: var(--gray); font-weight: 400; font-size: 0.9rem; margin-top: 5px; }
.info-card a { color: var(--primary); }

.team-section { padding: 80px 0; background: var(--light); }
.expertise-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.expertise-card {
    background: var(--white); padding: 30px 20px; border-radius: var(--radius);
    text-align: center; transition: var(--transition);
}
.expertise-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.expertise-icon { font-size: 2rem; margin-bottom: 10px; }
.expertise-card h4 { font-size: 0.9rem; color: var(--dark); }

/* ===== Services Page ===== */
.services-main { padding: 100px 0; }
.service-detail {
    display: flex; gap: 60px; align-items: flex-start; margin-bottom: 80px;
    padding-bottom: 80px; border-bottom: 1px solid var(--light);
}
.service-detail:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.service-detail.reverse { flex-direction: row-reverse; }
.service-detail-icon {
    font-size: 4rem; background: var(--light); width: 120px; height: 120px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius); flex-shrink: 0;
}
.service-detail-content h2 { font-size: 1.75rem; margin-bottom: 15px; color: var(--dark); }
.service-detail-content p { color: var(--gray); margin-bottom: 20px; }
.service-features { padding-left: 20px; }
.service-features li {
    color: var(--gray); margin-bottom: 10px; position: relative; padding-left: 25px;
}
.service-features li::before {
    content: '✓'; position: absolute; left: 0; color: var(--secondary); font-weight: bold;
}

.process-section { padding: 100px 0; background: var(--light); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.process-step { text-align: center; position: relative; }
.step-number {
    font-size: 3rem; font-weight: 800; color: var(--primary); opacity: 0.3; margin-bottom: 15px;
}
.process-step h3 { font-size: 1.25rem; margin-bottom: 10px; color: var(--dark); }
.process-step p { color: var(--gray); font-size: 0.95rem; }

/* ===== Portfolio Page ===== */
.portfolio-filter { padding: 40px 0; background: var(--light); }
.filter-buttons { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
.filter-btn {
    background: var(--white); border: none; padding: 10px 25px; border-radius: 50px;
    cursor: pointer; font-weight: 500; transition: var(--transition);
}
.filter-btn:hover, .filter-btn.active { background: var(--primary); color: var(--white); }

.portfolio-grid-section { padding: 80px 0; }
.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.portfolio-card {
    background: var(--white); border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); transition: var(--transition);
}
.portfolio-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.portfolio-image { position: relative; height: 200px; }
.portfolio-placeholder {
    background: var(--gradient); height: 100%; display: flex;
    align-items: center; justify-content: center;
}
.portfolio-placeholder .placeholder-icon { font-size: 4rem; color: var(--white); }
.portfolio-overlay {
    position: absolute; top: 15px; left: 15px;
}
.portfolio-category {
    background: var(--white); padding: 5px 15px; border-radius: 50px;
    font-size: 0.8rem; font-weight: 600; color: var(--primary);
}
.portfolio-content { padding: 25px; }
.portfolio-content h3 { font-size: 1.1rem; margin-bottom: 10px; color: var(--dark); }
.portfolio-content p { color: var(--gray); font-size: 0.9rem; margin-bottom: 15px; }
.portfolio-tags { display: flex; gap: 8px; flex-wrap: wrap; }
.portfolio-tags span {
    background: var(--light); padding: 4px 12px; border-radius: 50px;
    font-size: 0.75rem; color: var(--gray);
}

/* ===== Testimonials ===== */
.testimonials { padding: 100px 0; background: var(--light); }
.testimonials-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.testimonial-card { background: var(--white); padding: 40px; border-radius: var(--radius); }
.testimonial-content p {
    font-size: 1.1rem; color: var(--dark); font-style: italic; margin-bottom: 25px;
    position: relative; padding-left: 30px;
}
.testimonial-content p::before {
    content: '"'; position: absolute; left: 0; top: -10px;
    font-size: 3rem; color: var(--primary); opacity: 0.3;
}
.testimonial-author { display: flex; align-items: center; gap: 15px; }
.author-avatar { font-size: 2.5rem; }
.author-info h4 { color: var(--dark); margin-bottom: 3px; }
.author-info p { color: var(--gray); font-size: 0.9rem; font-style: normal; }

/* ===== Contact Page ===== */
.contact-main { padding: 100px 0; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-info h2 { font-size: 1.75rem; margin-bottom: 15px; color: var(--dark); }
.contact-info > p { color: var(--gray); margin-bottom: 30px; }
.contact-details { margin-bottom: 40px; }
.contact-item { display: flex; gap: 20px; margin-bottom: 25px; }
.contact-icon { font-size: 1.5rem; }
.contact-text h4 { color: var(--dark); margin-bottom: 5px; }
.contact-text p { color: var(--gray); }
.contact-text a { color: var(--primary); }
.contact-text a:hover { color: var(--primary-dark); }
.business-hours h3 { font-size: 1.1rem; margin-bottom: 15px; color: var(--dark); }
.business-hours li { color: var(--gray); margin-bottom: 8px; }
.business-hours span { font-weight: 500; color: var(--dark); }

.contact-form-wrapper { background: var(--light); padding: 40px; border-radius: var(--radius); }
.contact-form-wrapper h2 { font-size: 1.5rem; margin-bottom: 25px; color: var(--dark); }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 8px; font-weight: 500; color: var(--dark); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 15px; border: 1px solid var(--gray-light);
    border-radius: var(--radius-sm); font-size: 1rem; transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}
.checkbox-group { display: flex; align-items: flex-start; gap: 10px; }
.checkbox-group input { width: auto; margin-top: 4px; }
.checkbox-group label { font-size: 0.9rem; color: var(--gray); }
.checkbox-group a { color: var(--primary); }

.map-section { padding: 80px 0; background: var(--light); }
.contact-map { height: 400px; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }

/* ===== Legal Pages ===== */
.legal-content { padding: 80px 0; }
.legal-wrapper { max-width: 800px; margin: 0 auto; }
.legal-updated { color: var(--gray); font-style: italic; margin-bottom: 40px; }
.legal-section { margin-bottom: 40px; }
.legal-section h2 { font-size: 1.5rem; color: var(--dark); margin-bottom: 15px; padding-bottom: 10px; border-bottom: 2px solid var(--light); }
.legal-section h3 { font-size: 1.1rem; color: var(--dark); margin: 20px 0 10px; }
.legal-section p { color: var(--gray); margin-bottom: 15px; line-height: 1.8; }
.legal-section ul { padding-left: 25px; margin-bottom: 15px; }
.legal-section li { color: var(--gray); margin-bottom: 8px; position: relative; }
.legal-section li::before { content: '•'; position: absolute; left: -15px; color: var(--primary); }
.legal-contact { background: var(--light); padding: 25px; border-radius: var(--radius); margin-top: 20px; }
.legal-contact p { margin-bottom: 8px; color: var(--dark); }

/* ===== Footer ===== */
.footer { background: var(--dark); color: var(--white); padding: 80px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 50px; }
.footer-brand .logo { margin-bottom: 20px; }
.footer-brand p { color: var(--gray-light); font-size: 0.95rem; }
.footer-links h4, .footer-contact h4 { font-size: 1rem; margin-bottom: 20px; color: var(--white); }
.footer-links ul li { margin-bottom: 12px; }
.footer-links a { color: var(--gray-light); transition: var(--transition); }
.footer-links a:hover { color: var(--white); }
.footer-contact p { color: var(--gray-light); margin-bottom: 10px; font-size: 0.95rem; }
.footer-bottom { padding-top: 30px; border-top: 1px solid var(--dark-light); text-align: center; }
.footer-bottom p { color: var(--gray-light); font-size: 0.9rem; }

/* ===== Mobile Menu ===== */
.mobile-menu { display: none; position: fixed; top: 70px; left: 0; right: 0; background: var(--white); padding: 20px; box-shadow: var(--shadow-lg); z-index: 999; }
.mobile-menu.active { display: block; }
.mobile-menu ul { display: flex; flex-direction: column; gap: 15px; }
.mobile-menu a { display: block; padding: 10px; color: var(--dark); font-weight: 500; }
.mobile-menu a.active { color: var(--primary); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .info-grid { grid-template-columns: repeat(2, 1fr); }
    .expertise-grid { grid-template-columns: repeat(3, 1fr); }
    .process-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .hero h1 { font-size: 2.5rem; }
    .hero-buttons { flex-direction: column; }
    .hero-stats { flex-direction: column; gap: 20px; }
    .about-grid, .contact-grid { grid-template-columns: 1fr; }
    .services-grid, .mv-grid, .testimonials-grid { grid-template-columns: 1fr; }
    .service-detail, .service-detail.reverse { flex-direction: column; }
    .features-grid, .info-grid, .process-grid, .portfolio-grid { grid-template-columns: 1fr; }
    .expertise-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .page-hero h1 { font-size: 2rem; }
}