/* ===========================
   Global Styles & Variables
   =========================== */

:root {
    --primary-color: #06b6d4;
    --secondary-color: #0ea5e9;
    --dark-bg: #0f172a;
    --darker-bg: #0a0f1f;
    --card-bg: #1e293b;
    --text-light: #e2e8f0;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ===========================
   Navigation
   =========================== */

.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
}

.logo {
    font-size: 32px;
    color: var(--primary-color);
}

.brand-text {
    color: var(--text-light);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

.cta-button {
    background: var(--primary-color);
    color: var(--dark-bg) !important;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
}

.cta-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

.cta-button::after {
    display: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* ===========================
   Hero Section
   =========================== */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 100px 0;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(135deg, #06b6d4, #0ea5e9);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 20px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 16px;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--dark-bg);
}

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.3);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

.btn-large {
    padding: 16px 48px;
    font-size: 18px;
}

.hero-decoration {
    position: relative;
    height: 400px;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(50px);
    opacity: 0.6;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: var(--primary-color);
    top: 0;
    right: 0;
    animation: float 6s ease-in-out infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: var(--secondary-color);
    bottom: 50px;
    left: -50px;
    animation: float 8s ease-in-out infinite 1s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: #ec4899;
    bottom: 100px;
    right: 50px;
    animation: float 7s ease-in-out infinite 2s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(30px); }
}

/* ===========================
   Services Section
   =========================== */

.services {
    padding: 100px 0;
    background: var(--darker-bg);
}

.services h2,
.portfolio h2,
.about h2,
.contact h2 {
    font-size: 48px;
    font-weight: 800;
    text-align: center;
    margin-bottom: 20px;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 20px;
    margin-bottom: 60px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--card-bg);
    padding: 40px 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    background: rgba(6, 182, 212, 0.05);
}

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.service-card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--text-light);
}

.service-card p {
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1.6;
}

/* ===========================
   Portfolio Section
   =========================== */

.portfolio {
    padding: 100px 0;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.portfolio-item {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

.portfolio-image {
    width: 100%;
    height: 250px;
}

.portfolio-info {
    padding: 30px;
}

.portfolio-item h3 {
    font-size: 22px;
    margin-bottom: 15px;
}

.portfolio-item p {
    color: var(--text-muted);
    margin-bottom: 20px;
    font-size: 16px;
}

.tech-stack {
    display: block;
    color: var(--primary-color);
    font-size: 14px;
    font-weight: 600;
}

/* ===========================
   About Section
   =========================== */

.about {
    padding: 100px 0;
    background: var(--darker-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
    margin-top: 60px;
}

.about-text p {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

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

.stat h4 {
    font-size: 48px;
    color: var(--primary-color);
    font-weight: 800;
    margin-bottom: 10px;
}

.stat p {
    color: var(--text-muted);
    font-size: 16px;
    margin: 0;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature {
    background: rgba(6, 182, 212, 0.05);
    padding: 30px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.feature h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.feature p {
    color: var(--text-muted);
    font-size: 16px;
}

/* ===========================
   Contact Section
   =========================== */

.contact {
    padding: 100px 0;
}

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

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

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

.form-group input,
.form-group textarea {
    padding: 14px 18px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-light);
    font-size: 16px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--darker-bg);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.info-item h4 {
    font-size: 18px;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.info-item p,
.info-item a {
    color: var(--text-muted);
    font-size: 16px;
}

.info-item a {
    text-decoration: none;
    transition: var(--transition);
}

.info-item a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-link {
    display: inline-block;
    padding: 10px 16px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-light);
    text-decoration: none;
    transition: var(--transition);
    font-size: 14px;
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--dark-bg);
    border-color: var(--primary-color);
}

/* ===========================
   Footer
   =========================== */

.footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 60px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-light);
}

.footer-section p {
    color: var(--text-muted);
    font-size: 16px;
    margin-bottom: 10px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
    text-align: center;
    color: var(--text-muted);
}

/* ===========================
   Responsive Design
   =========================== */

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        gap: 20px;
    }

    .nav-menu a {
        font-size: 14px;
    }

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

    .hero-content h1 {
        font-size: 42px;
    }

    .hero-content p {
        font-size: 18px;
    }

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

    .btn {
        text-align: center;
        width: 100%;
    }

    .hero-decoration {
        display: none;
    }

    .services h2,
    .portfolio h2,
    .about h2,
    .contact h2 {
        font-size: 36px;
    }

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

    .stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }

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

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

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

@media (max-width: 480px) {
    .nav-brand {
        font-size: 18px;
    }

    .nav-menu {
        gap: 15px;
    }

    .nav-menu a {
        font-size: 12px;
    }

    .hero-content h1 {
        font-size: 32px;
    }

    .hero-content p {
        font-size: 16px;
    }

    .services h2,
    .portfolio h2,
    .about h2,
    .contact h2 {
        font-size: 28px;
    }

    .section-subtitle {
        font-size: 16px;
    }

    .stat h4 {
        font-size: 36px;
    }
}