/* Reset and Base */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-bg: #0a0a0b;
    --color-surface: #141416;
    --color-border: #27272a;
    --color-border-subtle: #1e1e21;
    --color-text: #e4e4e7;
    --color-text-muted: #a1a1aa;
    --color-text-subtle: #71717a;
    --color-accent: #3b82f6;
    --color-warning-bg: #1c1917;
    --color-warning-border: #44403c;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
    --max-width: 680px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3 {
    font-weight: 500;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2rem;
    color: var(--color-text);
}

h2 {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 400;
    margin-bottom: var(--spacing-md);
}

p {
    color: var(--color-text-muted);
}

strong {
    font-weight: 500;
    color: var(--color-text);
}

/* Layout */
main {
    flex: 1;
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.section {
    margin-bottom: var(--spacing-xl);
}

/* Hero */
.hero {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-subtle);
}

.hero h1 {
    margin-bottom: var(--spacing-xs);
}

.hero .subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.hero .description {
    font-size: 0.9375rem;
    color: var(--color-text-subtle);
    max-width: 560px;
}

/* Status Box */
.status-box {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-md);
    background-color: var(--color-warning-bg);
    border: 1px solid var(--color-warning-border);
    border-radius: 4px;
}

.status-box h2 {
    margin-bottom: var(--spacing-sm);
    text-transform: none;
    letter-spacing: normal;
    font-weight: 500;
    color: var(--color-text);
    font-size: 1rem;
}

.status-content p {
    font-size: 0.9375rem;
    margin-bottom: var(--spacing-sm);
}

.status-content ul {
    list-style: none;
    margin-bottom: var(--spacing-md);
    padding-left: 0;
}

.status-content li {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    padding-left: 1.25rem;
    position: relative;
    margin-bottom: var(--spacing-xs);
}

.status-content li::before {
    content: "—";
    position: absolute;
    left: 0;
    color: var(--color-text-subtle);
}

.status-note {
    font-size: 0.8125rem;
    color: var(--color-text-subtle);
    margin-bottom: 0;
}

/* Feature List */
.feature-list {
    list-style: none;
}

.feature-list li {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-border-subtle);
}

.feature-list li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.feature-list strong {
    display: block;
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
}

.feature-list span {
    display: block;
    font-size: 0.9375rem;
    color: var(--color-text-subtle);
}

/* Table */
.exists-content {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

thead {
    border-bottom: 1px solid var(--color-border);
}

th {
    text-align: left;
    font-weight: 400;
    color: var(--color-text-subtle);
    padding: var(--spacing-sm) 0;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    padding: var(--spacing-sm) 0;
    color: var(--color-text-muted);
    border-bottom: 1px solid var(--color-border-subtle);
}

tr:last-child td {
    border-bottom: none;
}

td:first-child {
    color: var(--color-text);
}

td:last-child {
    text-align: right;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    color: var(--color-text-subtle);
}

/* Links Navigation */
.links-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.link-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border-subtle);
    border-radius: 4px;
    text-decoration: none;
    transition: border-color 0.15s ease;
}

.link-item:hover {
    border-color: var(--color-border);
}

.link-label {
    font-size: 0.9375rem;
    color: var(--color-text);
}

.link-url {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-subtle);
}

/* Footer */
.footer {
    width: 100%;
    border-top: 1px solid var(--color-border-subtle);
    background-color: var(--color-bg);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.disclaimer {
    font-size: 0.75rem;
    color: var(--color-text-subtle);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.copyright {
    font-size: 0.75rem;
    color: var(--color-text-subtle);
}

/* Responsive */
@media (max-width: 640px) {
    :root {
        --spacing-xl: 3rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }

    .link-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .link-url {
        font-size: 0.6875rem;
    }

    td:last-child {
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    main {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .status-box {
        padding: var(--spacing-sm);
    }

    .footer-content {
        padding: var(--spacing-md) var(--spacing-sm);
    }
}