:root {
    --bg: #252a31;
    --bg-soft: #2f3540;
    --text: #f2f6fb;
    --muted: #c4cfdd;
    --accent: #79c8ff;
    --accent-strong: #4ab4ff;
    --border: #3d4654;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(180deg, #262c34, #1f232b);
    color: var(--text);
}

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

a:hover {
    color: var(--accent-strong);
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(28, 32, 39, 0.95);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(5px);
}

.navbar {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0.8rem 1rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text);
    font-size: 1.05rem;
    letter-spacing: 0.02em;
    text-transform: lowercase;
}

.brand-icon {
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.nav-links a {
    color: var(--muted);
    font-size: 0.92rem;
}

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

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 1.4rem 1rem 2.5rem;
}

.hero {
    border: 1px solid var(--border);
    background: linear-gradient(180deg, #2c3440, #28303a);
    border-radius: 14px;
    padding: 2.2rem 1.6rem;
    margin-bottom: 1.5rem;
}

.hero h1 {
    margin: 0 0 0.45rem;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.subtitle {
    margin: 0 0 1.1rem;
    color: var(--accent);
    font-size: 1.05rem;
}

.button-row {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    border-radius: 9px;
    border: 1px solid transparent;
    padding: 0.65rem 1rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #102334;
}

.btn-primary:hover {
    background: var(--accent-strong);
    color: #0b1d2a;
}

.btn-secondary {
    border: 1px solid var(--border);
    color: var(--text);
    background: #2d343f;
}


.btn-release-unavailable {
    border: 1px solid #9a7a1f;
    color: #fff3cd;
    background: #5e4a12;
}
.notice {
    margin-top: 0.8rem;
    color: #ffd89f;
    font-size: 0.9rem;
}

.section {
    margin-top: 1.2rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-soft);
    padding: 1.2rem;
}

.section h2,
.section h3 {
    margin-top: 0;
}

.grid {
    display: grid;
    gap: 1rem;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #313947;
    padding: 0.95rem;
}

.card h3 {
    margin-top: 0;
    font-size: 1rem;
}

ul {
    margin: 0.4rem 0 0.8rem 1.15rem;
}

li {
    margin: 0.35rem 0;
}

.site-footer {
    border-top: 1px solid var(--border);
    padding: 1rem;
    text-align: center;
    color: var(--muted);
    font-size: 0.9rem;
}

@media (max-width: 840px) {
    .navbar {
        align-items: flex-start;
        flex-direction: column;
    }
}