/* ===== CSS Variables ===== */
:root {
    --bg-dark: #0a0e17;
    --bg-card: #111827;
    --bg-elevated: #1a2332;
    --accent: #00d4ff;
    --accent-dim: #00a8cc;
    --accent-glow: rgba(0, 212, 255, 0.25);
    --text: #e8eef7;
    --text-muted: #94a3b8;
    --border: rgba(148, 163, 184, 0.15);
    --success: #22c55e;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    --transition: 0.25s ease;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Orbitron', 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg-dark);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    display: block;
}

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

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-dim));
    color: #0a0e17;
    border-color: transparent;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
}

/* ===== Header / Nav ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 120px;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-header-img {
    height: 100px;
    width: auto;
    max-width: min(620px, 70vw);
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 2px 16px rgba(0, 0, 0, 0.5));
}

/* Footer logo */
.logo-footer .logo-header-img {
    height: 70px;
    max-width: 420px;
}


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

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
}

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

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

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text);
    transition: all var(--transition);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 160px 0 80px;
    overflow: hidden;
    background:
        radial-gradient(ellipse 80% 60% at 70% 20%, rgba(0, 212, 255, 0.12), transparent),
        radial-gradient(ellipse 60% 40% at 20% 80%, rgba(0, 100, 150, 0.15), transparent),
        var(--bg-dark);
}

/* Large faded logo in the background of the hero */
.hero-bg-logo {
    position: absolute;
    top: 50%;
    right: -8%;
    transform: translateY(-50%);
    width: min(70vw, 900px);
    height: auto;
    opacity: 0.15;
    pointer-events: none;
    z-index: 0;
    user-select: none;
}

.hero-bg-logo img {
    width: 100%;
    height: auto;
    display: block;
    filter: brightness(1.5) contrast(1.15);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(180deg, transparent 60%, var(--bg-dark) 100%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 40px,
            rgba(0, 212, 255, 0.02) 40px,
            rgba(0, 212, 255, 0.02) 41px
        );
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5.5vw, 3.8rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 540px;
    margin-bottom: 32px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 56px;
}

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

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 56px;
}

.section-eyebrow {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 12px;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.05rem;
}

/* ===== Services ===== */
.services {
    background: var(--bg-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: all var(--transition);
}

.service-card:hover {
    border-color: rgba(0, 212, 255, 0.35);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.service-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 20px;
    color: var(--accent);
}

.service-icon svg {
    width: 26px;
    height: 26px;
}

.service-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
}

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

/* ===== About ===== */
.about {
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0d1320 100%);
}

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

.about-content h2 {
    font-size: clamp(1.7rem, 3.5vw, 2.3rem);
    margin-bottom: 20px;
}

.about-content p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

.about-list {
    margin-top: 24px;
}

.about-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 10px;
    color: var(--text);
    font-weight: 500;
}

.about-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

.about-visual {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: border-color var(--transition);
}

.about-card:hover {
    border-color: rgba(0, 212, 255, 0.3);
}

.about-card-icon {
    font-size: 1.6rem;
    flex-shrink: 0;
}

.about-card h4 {
    font-size: 1.05rem;
    margin-bottom: 4px;
}

.about-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ===== Process ===== */
.process {
    background: var(--bg-dark);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.step {
    text-align: center;
    padding: 28px 16px;
    position: relative;
}

.step-number {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--accent);
    opacity: 0.9;
    margin-bottom: 16px;
}

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

.step p {
    color: var(--text-muted);
    font-size: 0.92rem;
}

/* ===== CTA Banner ===== */
.cta-banner {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.12), rgba(0, 100, 150, 0.18));
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    text-align: center;
    padding: 80px 0;
}

.cta-banner h2 {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    margin-bottom: 12px;
}

.cta-banner p {
    color: var(--text-muted);
    margin-bottom: 28px;
    font-size: 1.1rem;
}

/* ===== Contact ===== */
.contact {
    background: #0d1320;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 48px;
    align-items: start;
}

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

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

.info-icon {
    font-size: 1.4rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 10px;
    flex-shrink: 0;
}

.info-item h4 {
    font-size: 0.95rem;
    margin-bottom: 4px;
}

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

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

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 14px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-note {
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
}

/* ===== Footer ===== */
.footer {
    background: #060a10;
    border-top: 1px solid var(--border);
    padding-top: 60px;
}

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

.footer-brand p {
    color: var(--text-muted);
    margin-top: 16px;
    font-size: 0.95rem;
    max-width: 260px;
}

.footer h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
    color: var(--text);
}

.footer-links a,
.footer-services a {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 10px;
    transition: color var(--transition);
}

.footer-links a:hover,
.footer-services a:hover {
    color: var(--accent);
}

.footer-contact p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 700px) {
    .nav {
        position: fixed;
        top: 96px;
        left: 0;
        right: 0;
        background: rgba(10, 14, 23, 0.98);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-120%);
        opacity: 0;
        transition: all 0.3s ease;
        pointer-events: none;
    }

    .nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        padding-top: 140px;
        min-height: auto;
        padding-bottom: 60px;
    }

    .logo-header-img {
        height: 58px;
        max-width: 82vw;
    }

    .logo-footer .logo-header-img {
        height: 52px;
        max-width: 300px;
    }

    .hero-bg-logo {
        width: 90vw;
        right: -25%;
        opacity: 0.12;
        top: 42%;
    }

    .nav-container {
        height: 96px;
    }

    .hero-stats {
        gap: 24px;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

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

    section {
        padding: 70px 0;
    }
}