/* ===== CSS Variables ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #7c3aed;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --dark-light: #334155;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f1f5f9;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --gradient-2: linear-gradient(135deg, #06b6d4 0%, #10b981 100%);
    --shadow-sm: 0 1px 2px 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, 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;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

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

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

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

/* ===== 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 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
}

.logo-icon {
    color: var(--primary);
    font-size: 28px;
}

.logo-text {
    color: var(--dark);
}

.logo-tech {
    color: var(--primary);
}

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

.nav-links a {
    color: var(--dark);
    font-weight: 500;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-1);
    transition: var(--transition);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.lang-toggle {
    padding: 8px 16px;
    border: 1px solid var(--gray-light);
    border-radius: var(--radius);
    background: transparent;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 100px 20px 60px;
    background: linear-gradient(180deg, var(--light) 0%, var(--white) 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    right: -100px;
}

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

.shape-3 {
    width: 200px;
    height: 200px;
    background: var(--accent);
    top: 50%;
    left: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--gray);
    margin-bottom: 32px;
}

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

.hero-visual {
    position: absolute;
    right: 5%;
    top: 50%;
    transform: translateY(-50%);
    width: 400px;
    height: 400px;
    display: none;
}

@media (min-width: 1024px) {
    .hero-content {
        margin: 0;
        text-align: left;
        margin-left: 10%;
    }
    .hero-visual {
        display: block;
    }
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    transform: rotate(15deg);
}

.grid-item {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-lg);
    animation: float 6s ease-in-out infinite;
}

.gi-1 { background: var(--gradient-1); animation-delay: 0s; }
.gi-2 { background: var(--gradient-2); animation-delay: 1.5s; }
.gi-3 { background: linear-gradient(135deg, var(--warning) 0%, var(--danger) 100%); animation-delay: 3s; }
.gi-4 { background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%); animation-delay: 4.5s; }

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

/* ===== Section Styles ===== */
section {
    padding: 80px 0;
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--dark);
}

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

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

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

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

.feature-icon {
    width: 64px;
    height: 64px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 20px;
}

.icon-blue { background: rgba(37, 99, 235, 0.1); }
.icon-green { background: rgba(16, 185, 129, 0.1); }
.icon-purple { background: rgba(124, 58, 237, 0.1); }
.icon-orange { background: rgba(245, 158, 11, 0.1); }

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--dark);
}

.feature-card p {
    color: var(--gray);
    font-size: 0.95rem;
}


/* ===== Services Preview ===== */
.services-preview {
    background: var(--light);
}

.services-showcase {
    max-width: 800px;
    margin: 0 auto;
}

.service-item {
    display: flex;
    align-items: flex-start;
    gap: 24px;
    padding: 32px;
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.service-item:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(8px);
}

.service-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.service-content h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.service-content p {
    color: var(--gray);
}

.services-cta {
    text-align: center;
    margin-top: 40px;
}

/* ===== Stats Section ===== */
.stats {
    background: var(--gradient-1);
    padding: 60px 0;
}

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

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 8px;
}

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

.stat-label {
    color: rgba(255,255,255,0.8);
    font-size: 1rem;
}

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

.cta-content h2 {
    font-size: 2.5rem;
    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);
    padding: 60px 0 20px;
    border-top: 1px solid var(--dark-light);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

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

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

.footer-brand p {
    color: var(--gray-light);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 1rem;
    margin-bottom: 20px;
}

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

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

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

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

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid var(--dark-light);
    text-align: center;
}

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

/* ===== About Page ===== */
.page-hero {
    padding: 140px 20px 80px;
    background: linear-gradient(180deg, var(--light) 0%, var(--white) 100%);
    text-align: center;
}

.page-hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 16px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

@media (max-width: 768px) {
    .about-content {
        grid-template-columns: 1fr;
    }
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--dark);
}

.about-text p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.8;
}

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

.about-image-placeholder {
    font-size: 6rem;
    color: rgba(255,255,255,0.3);
}

/* ===== Team Section ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

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

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

.team-avatar {
    height: 200px;
    background: var(--gradient-2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.5);
}

.team-info {
    padding: 24px;
    text-align: center;
}

.team-info h3 {
    font-size: 1.25rem;
    margin-bottom: 4px;
    color: var(--dark);
}

.team-info p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* ===== Services Page ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-left-color: var(--primary);
}

.service-card-icon {
    width: 72px;
    height: 72px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 24px;
    background: var(--light);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 16px;
    color: var(--dark);
}

.service-card p {
    color: var(--gray);
    margin-bottom: 20px;
}

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

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

.service-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

/* ===== Portfolio Page ===== */
.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 24px;
    border: 1px solid var(--gray-light);
    border-radius: 50px;
    background: transparent;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.portfolio-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.portfolio-image {
    height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255,255,255,0.5);
}

.portfolio-image.bg-1 { background: var(--gradient-1); }
.portfolio-image.bg-2 { background: var(--gradient-2); }
.portfolio-image.bg-3 { background: linear-gradient(135deg, var(--warning) 0%, var(--danger) 100%); }
.portfolio-image.bg-4 { background: linear-gradient(135deg, var(--secondary) 0%, var(--accent) 100%); }

.portfolio-info {
    padding: 24px;
    background: var(--white);
}

.portfolio-info h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: var(--dark);
}

.portfolio-info p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.portfolio-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.portfolio-tag {
    padding: 4px 12px;
    background: var(--light);
    border-radius: 50px;
    font-size: 0.75rem;
    color: var(--gray);
}

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

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-info-card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--light);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: var(--gradient-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.contact-info-content h3 {
    font-size: 1rem;
    margin-bottom: 4px;
    color: var(--dark);
}

.contact-info-content p {
    color: var(--gray);
    font-size: 0.9rem;
}

.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
}

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

.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: 12px 16px;
    border: 1px solid var(--gray-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(37, 99, 235, 0.1);
}

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

/* ===== Map Section ===== */
.map-section {
    padding: 0;
}

#map {
    height: 400px;
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

/* ===== Legal Pages ===== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

.legal-content h2 {
    font-size: 1.5rem;
    margin: 32px 0 16px;
    color: var(--dark);
}

.legal-content h3 {
    font-size: 1.25rem;
    margin: 24px 0 12px;
    color: var(--dark);
}

.legal-content p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.8;
}

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

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

.legal-content .update-date {
    color: var(--gray-light);
    font-style: italic;
    margin-bottom: 32px;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 16px;
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        display: flex;
    }

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

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

    .section-header h2 {
        font-size: 2rem;
    }

    .service-item {
        flex-direction: column;
        text-align: center;
    }

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

    .stat-number {
        font-size: 2.5rem;
    }

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

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Industries Section ===== */
.industries-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.industry-tag {
    padding: 10px 20px;
    background: var(--light);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--gray);
    transition: var(--transition);
}

.industry-tag:hover {
    background: var(--primary);
    color: var(--white);
}

/* ===== Timeline ===== */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--gray-light);
}

.timeline-item {
    display: flex;
    margin-bottom: 40px;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-content {
    width: 45%;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.timeline-content h3 {
    color: var(--primary);
    margin-bottom: 8px;
}

.timeline-content p {
    color: var(--gray);
}

@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }

    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
        padding-left: 50px;
    }

    .timeline-content {
        width: 100%;
    }
}