:root {
    --bg: #090f1e;
    --bg-soft: #111a2e;
    --surface: #ffffff;
    --surface-soft: #f5f8fd;
    --text: #13213e;
    --text-soft: #5b6b8b;
    --primary: #3b82f6;
    --primary-dark: #1d4ed8;
    --accent: #8b5cf6;
    --line: #e6ecf8;
    --shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
    --radius-lg: 20px;
    --radius-md: 14px;
    --transition: all 0.28s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Inter", sans-serif;
    background: var(--surface-soft);
    color: var(--text);
    line-height: 1.6;
}

main {
    overflow-x: hidden;
}

a {
    color: inherit;
}

.container {
    width: min(1140px, 92%);
    margin: 0 auto;
}

.section {
    padding: 92px 0;
}

.section-heading {
    max-width: 700px;
    margin-bottom: 40px;
}

.section-heading h2 {
    font-size: clamp(1.85rem, 4vw, 2.6rem);
    line-height: 1.2;
    margin-bottom: 14px;
}

.section-heading p {
    color: var(--text-soft);
}

.eyebrow {
    font-size: 0.78rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 14px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    border-bottom: 1px solid transparent;
    background: rgba(245, 248, 253, 0.75);
    backdrop-filter: blur(14px);
    transition: var(--transition);
}

.navbar.scrolled {
    border-color: var(--line);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 8px 28px rgba(11, 22, 46, 0.08);
}

.navbar .container {
    min-height: 76px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 700;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    color: #fff;
    background: linear-gradient(140deg, var(--primary), var(--accent));
    font-size: 0.95rem;
}

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

.nav-links {
    margin-left: auto;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 26px;
}

.nav-links a {
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-soft);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-dark);
}

.nav-cta {
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 18px;
    border-radius: 999px;
    background: var(--text);
    color: #fff;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-1px);
    background: #000;
}

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

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text);
    transition: var(--transition);
}

.hero {
    min-height: calc(100vh - 76px);
    background: linear-gradient(180deg, #eaf2ff 0%, #f5f8fd 70%);
    position: relative;
    display: flex;
    align-items: center;
}

.hero-glow {
    position: absolute;
    width: 680px;
    height: 680px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.22), transparent 68%);
    top: -160px;
    right: -120px;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 38px;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 3.6rem);
    line-height: 1.08;
    margin-bottom: 18px;
}

.hero-subtext {
    color: var(--text-soft);
    max-width: 620px;
    font-size: 1.08rem;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 28px 0;
}

.cta-button,
.ghost-button {
    border: none;
    text-decoration: none;
    cursor: pointer;
    padding: 13px 22px;
    border-radius: 999px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.cta-button {
    background: linear-gradient(140deg, var(--primary), var(--primary-dark));
    color: #fff;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.26);
}

.ghost-button {
    background: #fff;
    border: 1px solid var(--line);
    color: var(--text);
}

.ghost-button:hover {
    border-color: var(--primary);
    color: var(--primary-dark);
}

.hero-metrics {
    display: flex;
    gap: 24px;
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.metric strong {
    font-size: 1.35rem;
}

.metric span {
    font-size: 0.85rem;
    color: var(--text-soft);
}

.hero-panel {
    background: rgba(9, 15, 30, 0.92);
    color: #fff;
    border-radius: var(--radius-lg);
    padding: 26px;
    box-shadow: var(--shadow);
}

.hero-panel h3 {
    margin-bottom: 16px;
}

.hero-panel ul {
    list-style: none;
    display: grid;
    gap: 12px;
}

.hero-panel li {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    color: rgba(255, 255, 255, 0.9);
}

.hero-panel i {
    color: #7dd3fc;
    margin-top: 3px;
}

.hero-panel a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.hero-panel a:hover {
    color: #7dd3fc;
}

.services-grid,
.tech-grid,
.projects-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 18px;
}

.service-card,
.tech-card,
.project-card,
.process-step {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
}

.services {
    background: #fff;
}

.service-card {
    grid-column: span 3;
    padding: 24px;
}

.service-card i {
    font-size: 1.55rem;
    color: var(--primary);
    margin-bottom: 12px;
}

.service-card h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.service-card p {
    color: var(--text-soft);
}

.process {
    background: var(--surface-soft);
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.process-step {
    padding: 24px;
}

.process-step span {
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    border-radius: 10px;
    background: #e7efff;
    color: var(--primary-dark);
    font-weight: 700;
    margin-bottom: 14px;
}

.process-step h3 {
    margin-bottom: 8px;
}

.process-step p {
    color: var(--text-soft);
}

.tech-card {
    grid-column: span 4;
    padding: 26px;
}

.tech-icon {
    font-size: 1.6rem;
    color: var(--accent);
    margin-bottom: 14px;
}

.tech-card h3 {
    margin-bottom: 14px;
}

.tech-list {
    list-style: none;
    display: grid;
    gap: 9px;
}

.tech-list li {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-soft);
}

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

.projects {
    background: #fff;
}

.project-card {
    grid-column: span 6;
    overflow: hidden;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-4px);
}

.project-media {
    height: 190px;
    background: linear-gradient(135deg, #1e3a8a, #7c3aed);
    position: relative;
    overflow: hidden;
}

.project-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.project-badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text);
    border-radius: 999px;
    padding: 5px 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

.project-info {
    padding: 22px;
}

.project-info h3 {
    margin-bottom: 8px;
}

.project-info p {
    color: var(--text-soft);
    margin-bottom: 14px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.project-tech span {
    font-size: 0.75rem;
    border-radius: 999px;
    padding: 5px 10px;
    background: #edf3ff;
    color: #1f3f74;
    font-weight: 600;
}

.project-link {
    color: var(--primary-dark);
    font-weight: 600;
    text-decoration: none;
}

.project-link:hover {
    text-decoration: underline;
}

.about {
    background: var(--surface-soft);
}

.about-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 22px;
    align-items: stretch;
}

.about-text,
.about-stats {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    padding: 28px;
}

.about-text h2 {
    margin-bottom: 14px;
    font-size: 2rem;
}

.about-text p {
    color: var(--text-soft);
    margin-bottom: 12px;
}

.github-link {
    margin-top: 12px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    background: #111a2e;
    color: #fff;
    border-radius: 999px;
    padding: 10px 16px;
    font-weight: 600;
    transition: var(--transition);
}

.github-link:hover {
    transform: translateY(-1px);
    background: #1b2b4e;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}

.stat {
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 18px;
}

.stat h3 {
    font-size: 2rem;
    color: var(--primary-dark);
}

.stat p {
    color: var(--text-soft);
}

.contact {
    background: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 18px;
}

.contact-info,
#contact-form {
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.contact-info {
    display: grid;
    gap: 12px;
    align-content: start;
}

.info-item {
    display: flex;
    gap: 12px;
    align-items: center;
    color: var(--text-soft);
}

.info-item i {
    width: 20px;
    color: var(--primary);
}

.info-item a {
    text-decoration: none;
}

.info-item a:hover {
    text-decoration: underline;
}

#contact-form {
    display: grid;
    gap: 12px;
}

#contact-form input,
#contact-form textarea {
    width: 100%;
    border: 1px solid #d4deef;
    border-radius: 10px;
    padding: 12px 14px;
    font: inherit;
    background: #fff;
}

#contact-form textarea {
    min-height: 140px;
    resize: vertical;
}

#contact-form input:focus,
#contact-form textarea:focus {
    outline: 2px solid rgba(59, 130, 246, 0.25);
    border-color: var(--primary);
}

footer {
    background: var(--bg);
    color: rgba(255, 255, 255, 0.9);
    padding: 48px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    margin-bottom: 22px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.62);
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 14px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.84);
    text-decoration: none;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 16px;
    color: rgba(255, 255, 255, 0.56);
}

.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (max-width: 1024px) {
    .service-card {
        grid-column: span 6;
    }

    .tech-card {
        grid-column: span 6;
    }

    .project-card {
        grid-column: span 12;
    }

    .process-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .hero-content,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }

    .hero {
        min-height: auto;
        padding-top: 120px;
    }

    .hero-metrics {
        flex-wrap: wrap;
    }
}

@media (max-width: 820px) {
    .nav-cta {
        display: none;
    }

    .hamburger {
        display: flex;
        margin-left: auto;
    }

    .nav-links {
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--line);
        display: none;
        flex-direction: column;
        gap: 0;
    }

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

    .nav-links li {
        width: 100%;
    }

    .nav-links a {
        display: block;
        width: 100%;
        padding: 14px 4%;
    }
}

@media (max-width: 620px) {
    .section {
        padding: 72px 0;
    }

    .service-card,
    .tech-card {
        grid-column: span 12;
    }

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

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .hero-metrics {
        gap: 12px;
    }
}