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

:root {
    --bg-deep: #11161d;
    --bg-mid: #171e27;
    --bg-card: #1c2430;
    --accent: #134348;
    --accent-hover: #1b5b62;
    --text-1: #f4f4f2;
    --text-2: #c3c8d2;
    --text-3: #8b94a5;
    --border: rgba(129, 140, 153, 0.35);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg-deep);
    color: var(--text-1);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 2rem;
}

.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(13, 21, 32, 0.95);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-1);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
}

.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: 8px;
    font-weight: 700;
}

.back-link {
    color: var(--text-2);
    text-decoration: none;
    font-size: 0.95rem;
}

.back-link:hover {
    color: var(--accent-hover);
}

.main {
    padding-top: 6rem;
    padding-bottom: 4rem;
}

.hero {
    text-align: center;
}

.badge {
    display: inline-block;
    padding: 0.35rem 0.75rem;
    background: rgba(245, 166, 35, 0.2);
    color: #f5a623;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 2.75rem);
    font-weight: 700;
    margin-bottom: 1rem;
}

.tagline {
    font-size: 1.125rem;
    color: var(--text-2);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    text-align: left;
    max-width: 420px;
    margin: 0 auto 2rem;
}

.feature-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-2);
}

.feature-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 600;
}

.tech-tags {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.tech-tag {
    padding: 0.4rem 0.8rem;
    background: var(--bg-card);
    color: var(--text-3);
    font-size: 0.85rem;
    border-radius: 6px;
    border: 1px solid var(--border);
}

.footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-3);
    font-size: 0.9rem;
}

.footer a {
    color: var(--text-2);
    text-decoration: none;
}

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