@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@400;600;700&family=Raleway:wght@300;400;500;600&family=Share+Tech+Mono&display=swap');

:root {
    --teal: #00ffff;
    --teal-dim: #00cccc;
    --teal-dark: #008080;
    --navy: rgba(0, 30, 70, 0.85);
    --navy-light: rgba(0, 50, 100, 0.75);
    --black-glass: rgba(0, 0, 0, 0.65);
    --black-glass-light: rgba(0, 0, 0, 0.45);
    --text: #e8f4f8;
    --text-dim: #a0c4d8;
    --border: rgba(0, 255, 255, 0.15);
    --border-bright: rgba(0, 255, 255, 0.4);
    --font-display: 'Cinzel', serif;
    --font-body: 'Raleway', sans-serif;
    --font-mono: 'Share Tech Mono', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: url('earth-view.png') no-repeat center center fixed;
    background-size: cover;
    color: var(--text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.7;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(0,10,30,0.3) 0%, rgba(0,5,20,0.7) 100%);
    pointer-events: none;
    z-index: 0;
}

/* ── NAVBAR ── */
.navbar {
    background: var(--navy);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 40px;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.navbar-brand {
    font-family: var(--font-display);
    font-size: 20px;
    letter-spacing: 0.12em;
    color: var(--teal);
    text-decoration: none;
    text-transform: uppercase;
}

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

.nav-links a {
    color: var(--text-dim);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    transition: color 0.2s, border-bottom 0.2s;
    padding-bottom: 2px;
    border-bottom: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--teal);
    border-bottom-color: var(--teal);
}

.menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--teal);
    cursor: pointer;
}

/* ── PAGE WRAPPER ── */
.page {
    position: relative;
    z-index: 1;
    padding-top: 64px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* ── HERO ── */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 40px 80px;
    position: relative;
}

.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.3em;
    color: var(--teal);
    text-transform: uppercase;
    margin-bottom: 20px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.2s;
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 700;
    letter-spacing: 0.06em;
    color: #fff;
    text-shadow: 0 0 40px rgba(0,255,255,0.3);
    margin-bottom: 24px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.4s;
}

.hero h1 span {
    color: var(--teal);
}

.hero-sub {
    font-size: 18px;
    font-weight: 300;
    color: var(--text-dim);
    max-width: 640px;
    margin-bottom: 40px;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.6s;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
    opacity: 0;
    animation: fadeUp 0.8s ease forwards 0.8s;
}

/* ── BUTTONS ── */
.btn {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-decoration: none;
    padding: 14px 32px;
    border-radius: 3px;
    transition: all 0.25s ease;
    display: inline-block;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--teal);
    color: #002244;
}

.btn-primary:hover {
    background: #fff;
    color: #002244;
    box-shadow: 0 0 24px rgba(0,255,255,0.4);
}

.btn-outline {
    background: transparent;
    color: var(--teal);
    border: 1px solid var(--border-bright);
}

.btn-outline:hover {
    background: rgba(0,255,255,0.08);
    border-color: var(--teal);
}

/* ── CONTENT SECTIONS ── */
.content-section {
    max-width: 900px;
    width: 100%;
    margin: 0 auto 2px;
    padding: 60px 40px;
    background: var(--black-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.content-section:first-of-type {
    border-radius: 8px 8px 0 0;
}

.content-section:last-of-type {
    border-radius: 0 0 8px 8px;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.3em;
    color: var(--teal);
    text-transform: uppercase;
    margin-bottom: 12px;
    display: block;
}

.content-section h2 {
    font-family: var(--font-display);
    font-size: clamp(22px, 3vw, 32px);
    font-weight: 600;
    letter-spacing: 0.05em;
    color: #fff;
    margin-bottom: 20px;
}

.content-section h3 {
    font-family: var(--font-display);
    font-size: 18px;
    letter-spacing: 0.05em;
    color: var(--teal);
    margin-bottom: 12px;
    margin-top: 32px;
}

.content-section h3:first-child {
    margin-top: 0;
}

.content-section p {
    font-size: 16px;
    font-weight: 300;
    color: var(--text-dim);
    margin-bottom: 16px;
    max-width: 720px;
}

.content-section p:last-child {
    margin-bottom: 0;
}

.section-divider {
    width: 48px;
    height: 2px;
    background: var(--teal);
    margin: 0 0 28px;
    opacity: 0.6;
}

/* ── CARD GRID ── */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-top: 32px;
}

.card {
    background: rgba(0, 30, 70, 0.6);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 28px 24px;
    transition: border-color 0.25s, transform 0.25s;
}

.card:hover {
    border-color: var(--border-bright);
    transform: translateY(-3px);
}

.card-icon {
    font-size: 28px;
    margin-bottom: 14px;
    display: block;
}

.card h4 {
    font-family: var(--font-display);
    font-size: 15px;
    letter-spacing: 0.05em;
    color: var(--teal);
    margin-bottom: 10px;
}

.card p {
    font-size: 14px;
    color: var(--text-dim);
    margin: 0;
}

/* ── FOOTER ── */
footer {
    position: relative;
    z-index: 1;
    background: var(--navy);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border);
    padding: 32px 40px;
    text-align: center;
}

.footer-quote {
    font-family: var(--font-display);
    font-size: 14px;
    font-style: italic;
    color: var(--text-dim);
    margin-bottom: 12px;
    letter-spacing: 0.04em;
}

.footer-copy {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    color: rgba(255,255,255,0.3);
}

footer a {
    color: var(--teal);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
    .navbar { padding: 0 20px; }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        background: rgba(0, 20, 50, 0.97);
        width: 100%;
        padding: 20px;
        gap: 0;
        border-bottom: 1px solid var(--border);
    }

    .nav-links a {
        padding: 14px 0;
        display: block;
        border-bottom: 1px solid var(--border);
        font-size: 14px;
    }

    .nav-links a:last-child { border-bottom: none; }

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

    .menu-btn { display: block; }

    .hero { padding: 60px 24px 50px; }

    .content-section { padding: 40px 24px; }

    footer { padding: 24px 20px; }
}