:root {
    --bg: #faf9fb;
    --surface: #ffffff;
    --border: #e3e0e8;
    --text: #201d29;
    --text-muted: #7a768a;
    --accent-a: #ff5ec4;
    --accent-b: #57e0e0;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #16141c;
        --surface: #201d29;
        --border: #322e3d;
        --text: #f5f3f8;
        --text-muted: #948fa3;
        --accent-a: #ff5ec4;
        --accent-b: #57e0e0;
    }
}

:root[data-theme="dark"] {
    --bg: #16141c;
    --surface: #201d29;
    --border: #322e3d;
    --text: #f5f3f8;
    --text-muted: #948fa3;
    --accent-a: #ff5ec4;
    --accent-b: #57e0e0;
}

html {
    box-sizing: border-box;
}
*, *::before, *::after {
    box-sizing: inherit;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, "Segoe UI", Helvetica Neue, Helvetica, Arial, sans-serif;
    font-size: clamp(1rem, 2.5vw, 1.15rem);
    max-width: 34em;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: env(safe-area-inset-top, 2.5rem) 1.25rem env(safe-area-inset-bottom, 2.5rem);
    gap: 2.5rem;
}

.logo {
    display: block;
    width: clamp(240px, 55vw, 560px);
    height: auto;
    object-fit: contain;
}

.links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    width: 100%;
}

.link-card {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 1rem 0.9rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    text-decoration: none;
    font-weight: 600;
    letter-spacing: 0.01em;
    overflow: hidden;
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.link-card::before {
    content: "";
    position: absolute;
    inset: 0 0 auto 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-a), var(--accent-b));
    opacity: 0;
    transition: opacity 0.15s ease;
}

a.link-card:hover,
a.link-card:focus-visible {
    border-color: transparent;
    transform: translateY(-1px);
}

a.link-card:hover::before,
a.link-card:focus-visible::before {
    opacity: 1;
}

.link-card.disabled {
    color: var(--text-muted);
    flex-direction: column;
    gap: 0.2rem;
    border-style: dashed;
}

.link-tag {
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}