/* DEMOttU landing — bergit-flavoured palette, scoped to this page only.
   Other pages use Bootstrap; this file is linked only from Landing.cshtml. */

:root {
    --bg: #0a0a0a;
    --bg-elevated: #111111;
    --text: #e8e6e3;
    --text-dim: #888888;
    --accent: #c4f04d;
    --accent-dim: rgba(196, 240, 77, 0.15);
    --border: rgba(255, 255, 255, 0.08);
    --font-display: 'Outfit', sans-serif;
    --font-body: 'Space Grotesk', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

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

strong { color: #fff; font-weight: 600; }

code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--bg-elevated);
    padding: 0.1em 0.4em;
    border-radius: 3px;
    color: var(--accent);
}

::selection { background: var(--accent); color: var(--bg); }

/* ---- top bar ---- */
.top {
    position: sticky;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 2rem;
    background: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

.logo {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    color: var(--text);
}

.logo-accent { color: var(--accent); }

/* ---- Steam button ---- */
.steam-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-display);
    font-weight: 600;
    background: var(--accent);
    color: var(--bg);
    border: none;
    border-radius: 4px;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    cursor: pointer;
}

.steam-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(196, 240, 77, 0.35);
}

.steam-btn-sm { padding: 0.55rem 1rem; font-size: 0.9rem; }
.steam-btn-lg { padding: 1rem 1.75rem; font-size: 1.05rem; }

.steam-icon { width: 1.1em; height: 1.1em; }

/* ---- hero ---- */
.hero {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: min(900px, 80vw);
    height: 60vh;
    background: radial-gradient(circle, var(--accent-dim), transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.hero-inner {
    max-width: 960px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.wordmark {
    font-family: var(--font-display);
    font-size: clamp(4rem, 13vw, 9rem);
    font-weight: 900;
    line-height: 0.9;
    letter-spacing: -0.04em;
    margin-bottom: 2rem;
    color: var(--text);
}

.lede {
    font-size: clamp(1.1rem, 1.6vw, 1.35rem);
    line-height: 1.55;
    max-width: 38em;
    color: var(--text);
    margin-bottom: 2.5rem;
}

.cta-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 4.5rem;
}

.note {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* ---- features ---- */
.features {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--border);
}

.features li {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.kbd {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}

.features h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.15rem;
    color: #fff;
    letter-spacing: -0.01em;
}

.features p {
    font-size: 0.95rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* ---- footer ---- */
.foot {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    border-top: 1px solid var(--border);
}

.foot a { color: var(--text); border-bottom: 1px solid var(--accent); }
.foot a:hover { color: var(--accent); }
.foot-dot { opacity: 0.5; }

/* ---- responsive ---- */
@media (max-width: 640px) {
    .top { padding: 1rem 1.25rem; }
    .hero { padding: 4rem 1.25rem 3rem; }
    .logo { font-size: 1.25rem; }
    .steam-btn-sm .steam-icon { display: none; }
}