@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;700;900&family=Roboto:wght@300;400;500;700&display=swap');

:root {
    --primary: #4db5ff;
    --primary-hover: #3ba2ff;
    --secondary: #7a82ff;
    --secondary-hover: #686efe;
    --accent: #ffad47;
    --accent-hover: #ff9a1a;

    --text: #e7eef9;
    --text-muted: rgba(231, 238, 249, 0.7);
    --text-strong: #ffffff;

    --success: #4caf50;
    --info: #2196f3;
    --warning: #ff9800;
    --danger: #f44336;

    --dark: #07101f;
    --dark2: #0d1830;
    --card-bg: rgba(255, 255, 255, 0.06);
    --border: rgba(77, 181, 255, 0.14);

    --font-sans: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: 'Orbitron', var(--font-sans);
}

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

html { scroll-behavior: smooth; }

body {
    background-color: var(--dark);
    background-image:
        radial-gradient(circle at 10% 20%, rgba(77, 181, 255, 0.08) 0%, transparent 25%),
        radial-gradient(circle at 90% 80%, rgba(122, 130, 255, 0.08) 0%, transparent 25%),
        linear-gradient(180deg, #07101f 0%, #0a1628 100%);
    background-attachment: fixed;
    font-family: var(--font-sans);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* ── NAVBAR ── */
.navbar {
    background: rgba(8, 18, 34, 0.94);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(77, 181, 255, 0.12);
    box-shadow: 0 10px 45px rgba(0, 0, 0, 0.28);
}

.navbar .nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 74px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
}

.nav-logo-img,
.nav-logo-fallback {
    width: 42px;
    height: 42px;
}

.nav-logo-img {
    border-radius: 12px;
    object-fit: cover;
    border: 1px solid rgba(77, 181, 255, 0.28);
}

.nav-logo-fallback {
    border-radius: 12px;
    background: linear-gradient(135deg, rgba(77, 181, 255, 0.12), rgba(122, 130, 255, 0.12));
    border: 1px solid rgba(77, 181, 255, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 0.75rem;
    font-weight: 900;
    color: var(--primary);
    letter-spacing: -1px;
}

.nav-wordmark {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-strong);
    letter-spacing: 1.6px;
    text-transform: uppercase;
}
.nav-wordmark span { color: var(--primary); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-links a {
    color: rgba(231, 238, 249, 0.78);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 10px 18px;
    border-radius: 8px;
    transition: all 0.25s ease;
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-strong);
    background: rgba(77, 181, 255, 0.12);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 18px;
    right: 18px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #e7eef9;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ── FOOTER ── */
.footer {
    background: rgba(0,0,0,0.6);
    border-top: 1px solid rgba(0,243,255,0.08);
    padding: 60px 0 30px;
}

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

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

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 12px;
    line-height: 1.7;
    max-width: 280px;
}

.footer-col h4 {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 20px;
}

.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul li a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--primary); }

.social-row {
    display: flex;
    gap: 12px;
    margin-top: 4px;
}

.social-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.25s ease;
}
.social-btn:hover {
    background: var(--primary);
    color: #000;
    border-color: var(--primary);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding-top: 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}
.footer-bottom p { color: var(--text-muted); font-size: 0.85rem; }
.footer-bottom a { color: var(--text-muted); font-size: 0.85rem; text-decoration: none; }
.footer-bottom a:hover { color: var(--primary); }

/* ── PRELOADER ── */
#preloader {
    position: fixed; inset: 0;
    background: #050510;
    display: flex; flex-direction: column;
    justify-content: center; align-items: center;
    z-index: 99999;
    transition: opacity 0.5s ease;
}
#preloader.gone { opacity: 0; pointer-events: none; }

.loader-ring {
    width: 52px; height: 52px;
    border: 3px solid rgba(255,255,255,0.08);
    border-radius: 50%;
    border-top-color: var(--primary);
    border-right-color: var(--secondary);
    animation: spin 0.9s linear infinite;
    margin-bottom: 20px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loader-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 0.9rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
    animation: pulse 1.5s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:.5} 50%{opacity:1} }

/* ── COMMON SECTION STYLES ── */
.section-label {
    font-family: var(--font-heading);
    font-size: 0.75rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--primary);
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-strong);
    line-height: 1.1;
}

.section-title .accent { color: var(--primary); }

.section-divider {
    width: 64px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 999px;
    margin: 18px auto 0;
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 32px;
    border-radius: 999px;
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.cta-btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #000;
    box-shadow: 0 14px 28px rgba(77, 181, 255, 0.24);
}
.cta-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 18px 35px rgba(77, 181, 255, 0.28);
}

.cta-btn-outline {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    border: 1px solid rgba(255, 255, 255, 0.14);
}
.cta-btn-outline:hover {
    border-color: rgba(77, 181, 255, 0.35);
    color: var(--primary);
    background: rgba(77, 181, 255, 0.08);
    transform: translateY(-2px);
}

.cta-btn-purple {
    background: linear-gradient(135deg, var(--secondary), #6a0dad);
    color: #fff;
    box-shadow: 0 0 20px rgba(156,39,176,0.25);
}
.cta-btn-purple:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(156,39,176,0.4);
}

/* ── GRID BG PATTERN ── */
.grid-bg {
    background-image:
        linear-gradient(rgba(0,243,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,243,255,0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

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

    .nav-links {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: rgba(5,5,20,0.97);
        border-bottom: 1px solid rgba(0,243,255,0.1);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
    }

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

    .nav-links a {
        width: 100%;
        text-align: center;
        padding: 12px 16px;
    }

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

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}