:root {
    --bg: #050505;
    --bg-gloss: radial-gradient(circle at top, rgba(255, 255, 255, 0.08), transparent 40%);
    --text-main: #f5f5f5;
    --text-sub: #a1a1a1;
    --accent: #ff2f92;
    --accent-2: #00ffd5;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', sans-serif;
}

body {
    min-height: 100vh;
    background: var(--bg);
    background-image: var(--bg-gloss);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.logo {
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tab {
    padding: 0.45rem 0.9rem;
    font-size: 0.85rem;
    border-radius: 999px;
    border: 1px solid #2a2a2a;
    color: var(--text-sub);
    cursor: default;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.tab:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.header-right {
    display: flex;
    gap: 1.2rem;
    font-size: 1.2rem;
}

.header-right a {
    color: var(--text-sub);
    transition: color 0.2s ease, transform 0.2s ease;
}

.header-right a:hover {
    color: var(--accent-2);
    transform: translateY(-2px);
}

main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem 1.2rem 4rem;
}

.content {
    max-width: 900px;
    width: 100%;
}

.content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.content ul {
    list-style: disc;
    padding-left: 1.4rem;
    color: var(--text-sub);
}

.content li {
    margin-bottom: 1rem;
    line-height: 1.6;
}

.content table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    font-size: 0.95rem;
}

.content th,
.content td {
    border: 1px solid #2a2a2a;
    padding: 0.6rem 0.8rem;
    text-align: left;
    vertical-align: top;
}

.content th {
    background: #0e0e0e;
    font-weight: 600;
    color: var(--text-main);
}

.content a {
    color: var(--accent-2);
    text-decoration: none;
    border-bottom: 1px dashed rgba(0, 255, 213, 0.4);
}

.content a:hover {
    border-bottom-style: solid;
}

footer {
    text-align: center;
    padding: 1rem;
    font-size: 0.8rem;
    color: var(--text-sub);
}

@media (max-width: 600px) {
    header {
        padding: 1.2rem 1rem;
    }

    .header-right {
        width: 100%;
        justify-content: center;
    }

    .tabs {
        width: 100%;
    }

    main {
        padding-top: 2rem;
    }

    .content table {
        font-size: 0.85rem;
    }
}