/* ===== 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-1: linear-gradient(135deg, #4F46E5 0%, #7C3AED 100%);
    --gradient-2: linear-gradient(135deg, #10B981 0%, #3B82F6 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius: 8px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark);
    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;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

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

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
    color: var(--gray);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

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

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

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.125rem;
}

/* ===== 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: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.logo-icon {
    color: var(--primary);
    font-size: 1.75rem;
}

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

.nav-links a {
    font-weight: 500;
    color: var(--gray);
    position: relative;
    padding: 8px 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-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.lang-switch {
    padding: 8px 16px;
    background: var(--light);
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

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


/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    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-light);
    top: -200px;
    right: -200px;
}

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

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

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    margin-bottom: 24px;
    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);
    max-width: 600px;
    margin: 0 auto 40px;
}

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

.hero-visual {
    position: absolute;
    right: 10%;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.1;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.grid-item {
    width: 100px;
    height: 100px;
    background: var(--primary);
    border-radius: var(--radius);
    animation: float 3s ease-in-out infinite;
}

.grid-item:nth-child(2) { animation-delay: 0.5s; }
.grid-item:nth-child(3) { animation-delay: 1s; }
.grid-item:nth-child(4) { animation-delay: 1.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

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

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

.section-header h2 {
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.feature-icon svg {
    width: 32px;
    height: 32px;
    color: var(--white);
}

.feature-card h3 {
    margin-bottom: 12px;
}

/* ===== Stats Section ===== */
.stats {
    background: var(--gradient-1);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item {
    color: var(--white);
}

.stat-number {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.stat-number::after {
    content: '+';
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===== Services Preview ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

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

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--gradient-1);
    transition: var(--transition);
}

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

.service-card:hover::before {
    height: 100%;
}

.service-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--light);
    margin-bottom: 16px;
}

.service-card h3 {
    margin-bottom: 16px;
}

.service-link {
    display: inline-block;
    margin-top: 20px;
    color: var(--primary);
    font-weight: 600;
}

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

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

.cta-content h2 {
    color: var(--white);
    margin-bottom: 16px;
}

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


/* ===== Footer ===== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 80px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

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

.footer-brand p {
    color: var(--gray-light);
    margin-bottom: 8px;
}

.company-name {
    font-size: 0.875rem;
    color: var(--gray);
}

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

.footer-links ul li,
.footer-contact ul li {
    margin-bottom: 12px;
}

.footer-links a,
.footer-contact a {
    color: var(--gray-light);
}

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

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

.footer-contact svg {
    color: var(--primary-light);
    flex-shrink: 0;
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--dark-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-bottom p {
    color: var(--gray);
    font-size: 0.875rem;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a {
    color: var(--gray-light);
    font-size: 0.875rem;
}

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

/* ===== About Page ===== */
.page-hero {
    padding: 160px 24px 80px;
    background: linear-gradient(135deg, var(--light) 0%, var(--white) 100%);
    text-align: center;
}

.page-hero h1 {
    margin-bottom: 16px;
}

.page-hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
}

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

.about-text h2 {
    margin-bottom: 24px;
}

.about-text p {
    margin-bottom: 16px;
}

.about-visual {
    position: relative;
}

.about-image {
    width: 100%;
    height: 400px;
    background: var(--gradient-1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-image svg {
    width: 200px;
    height: 200px;
    color: rgba(255, 255, 255, 0.3);
}

/* ===== Values Section ===== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.value-card {
    text-align: center;
    padding: 40px 32px;
}

.value-icon {
    width: 80px;
    height: 80px;
    background: var(--light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
}

.value-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary);
}

.value-card h3 {
    margin-bottom: 12px;
}

/* ===== Team Section ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.team-card {
    text-align: center;
    padding: 40px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.team-avatar {
    width: 120px;
    height: 120px;
    background: var(--gradient-2);
    border-radius: 50%;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--white);
}

.team-card h3 {
    margin-bottom: 8px;
}

.team-role {
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 16px;
}

/* ===== Services Page ===== */
.services-detail {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.service-detail-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-detail-card:hover {
    box-shadow: var(--shadow-xl);
}

.service-header {
    background: var(--gradient-1);
    padding: 32px;
    color: var(--white);
}

.service-header h3 {
    color: var(--white);
    margin-bottom: 8px;
}

.service-header p {
    color: rgba(255, 255, 255, 0.8);
}

.service-body {
    padding: 32px;
}

.service-body ul {
    margin-bottom: 24px;
}

.service-body li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: var(--gray);
}

.service-body li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-weight: 700;
}

/* ===== Process Section ===== */
.process-steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 24px;
}

.process-step {
    flex: 1;
    min-width: 200px;
    max-width: 280px;
    text-align: center;
    padding: 32px 24px;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.process-step h3 {
    margin-bottom: 12px;
}

/* ===== Solutions Page ===== */
.solutions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

.solution-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
    transition: var(--transition);
}

.solution-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateX(8px);
}

.solution-icon {
    width: 64px;
    height: 64px;
    background: var(--light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.solution-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary);
}

.solution-card h3 {
    margin-bottom: 16px;
}

.solution-features {
    margin-top: 20px;
}

.solution-features li {
    padding: 6px 0;
    color: var(--gray);
    display: flex;
    align-items: center;
    gap: 8px;
}

.solution-features li::before {
    content: '→';
    color: var(--primary);
}


/* ===== Contact Page ===== */
.contact-section {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info {
    background: var(--gradient-1);
    padding: 48px;
    border-radius: var(--radius-lg);
    color: var(--white);
}

.contact-info h2 {
    color: var(--white);
    margin-bottom: 16px;
}

.contact-info > p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 40px;
}

.contact-details {
    margin-bottom: 40px;
}

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

.contact-item-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-item-icon svg {
    width: 24px;
    height: 24px;
}

.contact-item-content h4 {
    color: var(--white);
    margin-bottom: 4px;
}

.contact-item-content p,
.contact-item-content a {
    color: rgba(255, 255, 255, 0.8);
}

.contact-item-content a:hover {
    color: var(--white);
}

.contact-form-wrapper {
    background: var(--white);
    padding: 48px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.contact-form-wrapper h2 {
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--light);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.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(79, 70, 229, 0.1);
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

/* ===== Privacy & Terms Pages ===== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 24px;
}

.legal-content h1 {
    margin-bottom: 16px;
}

.legal-content .last-updated {
    color: var(--gray);
    margin-bottom: 40px;
}

.legal-section {
    margin-bottom: 40px;
}

.legal-section h2 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--dark);
}

.legal-section p {
    margin-bottom: 16px;
    line-height: 1.8;
}

.legal-section ul {
    margin: 16px 0;
    padding-left: 24px;
}

.legal-section li {
    margin-bottom: 8px;
    color: var(--gray);
    list-style: disc;
}

.legal-section a {
    color: var(--primary);
}

.legal-section a:hover {
    text-decoration: underline;
}

/* ===== Mobile Menu ===== */
.mobile-menu {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px;
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

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

.mobile-menu ul {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.mobile-menu a {
    display: block;
    padding: 12px 0;
    font-weight: 500;
    color: var(--dark);
    border-bottom: 1px solid var(--light);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding: 120px 24px 60px;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    section {
        padding: 60px 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info,
    .contact-form-wrapper {
        padding: 32px 24px;
    }
}

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

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

/* ===== Utility Classes ===== */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.bg-light { background: var(--light); }
.mt-40 { margin-top: 40px; }
.mb-40 { margin-bottom: 40px; }