/* ===== CSS Variables ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #0f172a;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gradient-1: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-2: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    color: var(--gray-900);
    font-weight: 600;
    line-height: 1.3;
}

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); }
h4 { font-size: 1.125rem; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: var(--transition);
    cursor: pointer;
}

.btn-primary {
    background: var(--gradient-1);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* ===== 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: 1rem 0;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 2px;
}

.logo-sub {
    font-size: 0.625rem;
    color: var(--gray-500);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    color: var(--gray-600);
    position: relative;
    padding: 0.5rem 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,
.nav-links a.active {
    color: var(--primary);
}

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

.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.lang-switch {
    padding: 0.5rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: var(--transition);
}

.lang-switch:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gray-700);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    right: -200px;
    opacity: 0.15;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    bottom: -100px;
    left: -100px;
    opacity: 0.15;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: var(--success);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0.1;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    margin-bottom: 1.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    max-width: 500px;
}

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

.hero-visual {
    display: flex;
    justify-content: center;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.tech-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    transition: var(--transition);
}

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

.tech-card .icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.tech-card span {
    font-weight: 600;
    color: var(--gray-700);
}

/* ===== Section Styles ===== */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Features Section ===== */
.features {
    background: var(--gray-50);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

/* ===== Services Preview ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

.service-link {
    color: var(--primary);
    font-weight: 500;
}

.service-link:hover {
    color: var(--primary-dark);
}

/* ===== Stats Section ===== */
.stats {
    background: var(--gradient-2);
    color: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-number::after {
    content: '+';
    -webkit-text-fill-color: inherit;
}

.stat-label {
    color: var(--gray-300);
    font-size: 0.9375rem;
}

/* ===== CTA Section ===== */
.cta {
    background: var(--gradient-1);
    text-align: center;
}

.cta-content h2 {
    color: var(--white);
    margin-bottom: 1rem;
}

.cta-content p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.cta .btn-primary:hover {
    background: var(--gray-100);
}


/* ===== Footer ===== */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand .logo {
    margin-bottom: 1rem;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand > p {
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

.footer-contact p {
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.footer-links h4 {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    font-size: 0.9375rem;
    color: var(--gray-400);
}

.footer-links a:hover {
    color: var(--white);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--gray-800);
    text-align: center;
    font-size: 0.875rem;
}

/* ===== About Page ===== */
.page-hero {
    padding: 10rem 0 4rem;
    background: var(--gradient-2);
    color: var(--white);
    text-align: center;
}

.page-hero h1 {
    color: var(--white);
    margin-bottom: 1rem;
}

.page-hero p {
    color: var(--gray-300);
    max-width: 600px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

.about-image {
    background: var(--gradient-1);
    border-radius: var(--radius-2xl);
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.about-image-placeholder {
    font-size: 8rem;
    opacity: 0.5;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.value-card {
    text-align: center;
    padding: 2rem;
}

.value-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.value-card h3 {
    margin-bottom: 0.75rem;
}

.value-card p {
    color: var(--gray-500);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.team-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.team-image {
    height: 200px;
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.team-info {
    padding: 1.5rem;
    text-align: center;
}

.team-info h3 {
    margin-bottom: 0.25rem;
}

.team-info .role {
    color: var(--primary);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.team-info p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ===== Services Page ===== */
.services-detail {
    display: grid;
    gap: 4rem;
}

.service-detail-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 3rem;
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow);
}

.service-detail-card:nth-child(even) {
    direction: rtl;
}

.service-detail-card:nth-child(even) > * {
    direction: ltr;
}

.service-detail-content h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

.service-detail-content p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-600);
}

.service-features li::before {
    content: '✓';
    color: var(--success);
    font-weight: 700;
}

.service-detail-visual {
    background: var(--gradient-1);
    border-radius: var(--radius-xl);
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

.service-visual-icon {
    font-size: 6rem;
    opacity: 0.8;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.process-step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

.process-step h4 {
    margin-bottom: 0.5rem;
}

.process-step p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* ===== Solutions Page ===== */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.solution-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.solution-header {
    background: var(--gradient-1);
    padding: 2rem;
    color: var(--white);
}

.solution-header h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
}

.solution-header p {
    opacity: 0.9;
    font-size: 0.9375rem;
}

.solution-body {
    padding: 2rem;
}

.solution-body ul {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.solution-body li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--gray-600);
}

.solution-body li::before {
    content: '•';
    color: var(--primary);
    font-weight: 700;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
}

.industry-card {
    background: var(--white);
    padding: 2rem 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.industry-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.industry-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.industry-card h4 {
    font-size: 0.9375rem;
    color: var(--gray-700);
}

/* ===== Contact Page ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info h2 {
    margin-bottom: 1.5rem;
}

.contact-info > p {
    color: var(--gray-600);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gray-100);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.contact-item h4 {
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--gray-500);
    font-size: 0.9375rem;
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

#map {
    height: 400px;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* ===== Legal Pages ===== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.legal-content h3 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    font-size: 1.25rem;
}

.legal-content p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

.legal-content ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
    color: var(--gray-600);
    list-style: disc;
}

.legal-content .last-updated {
    color: var(--gray-500);
    font-style: italic;
    margin-bottom: 2rem;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--white);
    z-index: 999;
    padding: 6rem 2rem 2rem;
}

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

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.mobile-menu a {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--gray-700);
}

.mobile-menu a:hover,
.mobile-menu a.active {
    color: var(--primary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        order: 1;
    }
    
    .hero-visual {
        order: 2;
    }
    
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .service-detail-card {
        grid-template-columns: 1fr;
    }
    
    .service-detail-card:nth-child(even) {
        direction: ltr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .solutions-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}