/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0A2647;
    --secondary: #144272;
    --accent: #2C74B3;
    --accent-light: #205295;
    --gradient: linear-gradient(135deg, #0A2647 0%, #2C74B3 100%);
    --text-light: #f0f4ff;
    --text-muted: #b0c4de;
    --white: #ffffff;
    --shadow: 0 20px 60px rgba(10, 38, 71, 0.15);
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: #f8faff;
    color: var(--primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.highlight {
    color: var(--accent);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent);
    border-radius: 4px;
    opacity: 0.3;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-tag {
    display: inline-block;
    background: rgba(44, 116, 179, 0.1);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 6px 18px;
    border-radius: 50px;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 12px;
}

.section-header p {
    color: #555;
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 34px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 8px 30px rgba(10, 38, 71, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(10, 38, 71, 0.35);
}

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

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

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    z-index: 1000;
    padding: 16px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
}

.logo span {
    color: var(--accent);
}

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

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--primary);
    transition: var(--transition);
    position: relative;
}

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

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

.nav-cta {
    background: var(--gradient);
    color: var(--white) !important;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 600 !important;
}

.nav-cta::after {
    display: none !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(10, 38, 71, 0.25);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--primary);
    border-radius: 4px;
    transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, #f0f6ff 0%, #ffffff 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

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

.hero-content .badge {
    display: inline-block;
    background: rgba(44, 116, 179, 0.12);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 20px;
}

.hero-content h1 {
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.15rem;
    color: #444;
    max-width: 480px;
    margin-bottom: 32px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.hero-stats div {
    font-size: 0.95rem;
    color: #555;
}

.hero-stats span {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
}

/* Code Window */
.code-window {
    background: #0a0e1a;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.code-header {
    background: #141b2d;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid #1a2340;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.dot.red { background: #ff5f56; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #27c93f; }

.code-title {
    color: #8b9bb5;
    font-size: 0.8rem;
    margin-left: 12px;
    font-family: monospace;
}

.code-body {
    padding: 24px;
    overflow-x: auto;
}

.code-body pre {
    font-family: 'Fira Code', monospace;
    font-size: 0.85rem;
    line-height: 1.8;
    color: #e4e9f2;
}

.code-keyword { color: #ff7b72; }
.code-class { color: #79c0ff; }
.code-func { color: #d2a8ff; }
.code-comment { color: #8b949e; font-style: italic; }
.code-var { color: #ffa657; }
.code-string { color: #a5d6ff; }

/* ===== SERVICES ===== */
.services {
    padding: 100px 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    background: #f8faff;
    padding: 36px 28px;
    border-radius: var(--radius);
    border: 1px solid #e8edf5;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
    border-color: var(--accent);
}

.service-icon {
    width: 56px;
    height: 56px;
    background: rgba(44, 116, 179, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 16px;
}

.service-card h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
}

.service-card p {
    color: #555;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* ===== EXPERTISE ===== */
.expertise {
    padding: 80px 0;
    background: #f8faff;
}

.expertise-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.tech-item {
    background: var(--white);
    padding: 12px 28px;
    border-radius: 50px;
    border: 1px solid #e8edf5;
    font-weight: 500;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}

.tech-item:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 116, 179, 0.1);
}

.tech-item i {
    color: var(--accent);
    font-size: 1.1rem;
}

/* ===== PORTFOLIO ===== */
.portfolio {
    padding: 100px 0;
    background: var(--white);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    max-width: 900px;
    margin: 0 auto;
}

.portfolio-card {
    background: #f8faff;
    padding: 32px;
    border-radius: var(--radius);
    border: 1px solid #e8edf5;
    transition: var(--transition);
    position: relative;
}

.portfolio-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.portfolio-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 4px 14px;
    border-radius: 50px;
    background: rgba(39, 201, 63, 0.12);
    color: #27c93f;
    margin-bottom: 12px;
}

.portfolio-card h3 {
    font-size: 1.2rem;
    margin-bottom: 8px;
}

.portfolio-card p {
    color: #555;
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.portfolio-card ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 16px;
}

.portfolio-card ul li {
    color: #444;
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.portfolio-date {
    font-size: 0.85rem;
    color: #888;
    font-weight: 500;
}

/* ===== ABOUT ===== */
.about {
    padding: 100px 0;
    background: #f8faff;
}

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

.about-content .section-tag {
    margin-bottom: 12px;
}

.about-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.about-content p {
    color: #444;
    font-size: 1.05rem;
    margin-bottom: 16px;
}

.about-details {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 24px 0 32px;
}

.about-details div {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    color: #333;
}

.about-details i {
    color: var(--accent);
    width: 20px;
}

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

.about-card {
    background: var(--white);
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 28px;
    width: 100%;
    max-width: 340px;
}

.about-stat {
    text-align: center;
    padding: 16px;
    border-radius: 12px;
    background: #f8faff;
}

.about-stat span {
    display: block;
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--accent);
}

.about-stat {
    font-size: 0.95rem;
    color: #555;
}

/* ===== TESTIMONIAL ===== */
.testimonial {
    padding: 80px 0;
    background: var(--primary);
    color: var(--white);
}

.testimonial-box {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-box i {
    font-size: 2.5rem;
    color: var(--accent);
    opacity: 0.5;
    margin-bottom: 16px;
}

.testimonial-box blockquote {
    font-size: 1.3rem;
    font-weight: 300;
    line-height: 1.7;
    margin-bottom: 20px;
}

.testimonial-box cite {
    font-style: normal;
    font-weight: 500;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ===== CONTACT ===== */
.contact {
    padding: 100px 0;
    background: var(--white);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

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

.contact-item i {
    width: 44px;
    height: 44px;
    background: rgba(44, 116, 179, 0.08);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #888;
    margin-bottom: 2px;
}

.contact-item a,
.contact-item span {
    color: var(--primary);
    font-weight: 500;
}

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

.contact-social {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.contact-social a {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: #f0f4ff;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: var(--transition);
    font-size: 1.1rem;
}

.contact-social a:hover {
    background: var(--accent);
    color: var(--white);
    transform: translateY(-3px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-form input,
.contact-form textarea {
    padding: 14px 20px;
    border-radius: 12px;
    border: 1px solid #e0e6f0;
    font-family: inherit;
    font-size: 0.95rem;
    transition: var(--transition);
    background: #fafcff;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(44, 116, 179, 0.1);
}

.contact-form button {
    align-self: flex-start;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--primary);
    color: var(--text-light);
    padding: 60px 0 24px;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    color: var(--white);
    display: inline-block;
    margin-bottom: 8px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-tagline {
    font-size: 0.85rem;
    margin-top: 4px;
    color: var(--accent);
}

.footer-links h4,
.footer-newsletter h4 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--white);
}

.footer-links a {
    display: block;
    color: var(--text-muted);
    margin-bottom: 10px;
    transition: var(--transition);
    font-size: 0.95rem;
}

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

.footer-newsletter p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.footer-newsletter form {
    display: flex;
    gap: 8px;
}

.footer-newsletter input {
    flex: 1;
    padding: 10px 16px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--white);
    font-family: inherit;
}

.footer-newsletter input::placeholder {
    color: var(--text-muted);
}

.footer-newsletter input:focus {
    outline: none;
    border-color: var(--accent);
}

.footer-newsletter button {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--accent);
    color: var(--white);
    cursor: pointer;
    transition: var(--transition);
}

.footer-newsletter button:hover {
    transform: translateX(4px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 24px;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-content h1 {
        font-size: 2.6rem;
    }

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

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

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 32px 32px;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.1);
        transition: var(--transition);
        gap: 20px;
        align-items: stretch;
    }

    .nav-links.active {
        right: 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-content p {
        margin: 0 auto 24px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

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

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

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

    .about-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .about-details div {
        justify-content: center;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .code-body pre {
        font-size: 0.7rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }

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

    .btn {
        padding: 12px 24px;
        font-size: 0.85rem;
    }
}