:root {
    --bg: #0b0f18;
    --accent: #00d4ff;
    --accent-dim: rgba(0, 212, 255, 0.08);
    --text: #e8ecf1;
    --text-muted: #7a8ba0;
    --border: rgba(255, 255, 255, 0.06);
    --font-heading: 'Instrument Sans', sans-serif;
    --font-body: 'General Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.25rem 2rem;
    background: rgba(11, 15, 24, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-brand {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
    letter-spacing: 0.04em;
    text-decoration: none;
}

.header-brand:hover { color: var(--accent); }

.nav { display: flex; gap: 2rem; }

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 400;
    transition: color 0.25s;
}

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


.hero {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 8rem 2rem 4rem;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.75rem;
}

.logo-placeholder {
    width: 160px;
    height: 160px;
    border-radius: 24px;
    border: 2px dashed rgba(0, 212, 255, 0.35);
    background: var(--accent-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.logo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 16px;
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(1.75rem, 4.5vw, 2.75rem);
    letter-spacing: -0.025em;
    line-height: 1.15;
}

.hero-subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    font-weight: 300;
}


.about {
    flex: 1;
    padding: 8rem 2rem 6rem;
}

.about-inner {
    max-width: 680px;
    margin: 0 auto;
}

.about-label {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1rem;
}

.about-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: clamp(1.5rem, 3.5vw, 2rem);
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.about-text {
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 300;
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.about-text:last-of-type {
    margin-bottom: 3rem;
}

.about-stats {
    display: flex;
    gap: 1px;
    background: var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.stat {
    flex: 1;
    background: var(--bg);
    padding: 1.75rem 1.25rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.stat-number {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.75rem;
    color: var(--accent);
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 400;
}


.footer {
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-muted);
}


@media (max-width: 600px) {
    .header { padding: 1rem 1.25rem; }
    .nav { gap: 1.25rem; }
    .hero { padding: 7rem 1.5rem 3rem; }

    .logo-placeholder {
        width: 120px;
        height: 120px;
        border-radius: 18px;
    }

    .about { padding: 6rem 1.5rem 4rem; }
    .about-stats { flex-direction: column; }
}