/* --- splash.css — bigger readable layout overrides --- */

@font-face {
    font-family: 'Clash Grotesk';
    src: url('/static/fonts/clash/ClashGrotesk-Variable.woff2') format('woff2');
    font-weight: 200 700;
    font-display: swap;
}

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

body {
    font-family: 'Clash Grotesk', system-ui, -apple-system, sans-serif;
    background: var(--background);
    color: var(--on-background);
    font-size: 18px;
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- topbar --- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 200;
    background: var(--surface-container);
    border-bottom: 1px solid var(--outline-variant);
    backdrop-filter: blur(12px);
    padding: 0 24px;
}

.topbar-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    gap: 16px;
}

.topbar-brand {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: 0.04em;
    flex-shrink: 0;
}

.topbar-links {
    display: flex;
    gap: 20px;
    flex: 1;
    overflow: hidden;
}

.topbar-links a {
    color: var(--on-surface-variant);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 400;
    transition: color 0.15s;
    white-space: nowrap;
}

.topbar-links a:hover {
    color: var(--on-surface);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.viewer-count {
    font-size: 0.8rem;
    color: var(--outline);
    font-variant-numeric: tabular-nums;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.count-icon {
    width: 14px;
    height: 14px;
    filter: var(--custom-filter);
}

/* --- burger menu (hidden on desktop) --- */
.burger {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    gap: 5px;
    z-index: 110;
}

.burger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--on-surface);
    border-radius: 2px;
    transition: all 0.25s ease;
}

.burger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.burger.open span:nth-child(2) {
    opacity: 0;
}
.burger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.nav-overlay {
    display: none;
}

/* --- main content area --- */
.page {
    flex: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 48px 32px;
    width: 100%;
}

/* --- hero --- */
.hero {
    text-align: center;
    padding: 40px 0 48px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--on-surface);
    margin-bottom: 8px;
}

.hero-age {
    font-size: 1.3rem;
    color: var(--on-surface-variant);
    font-weight: 400;
    transition: opacity 0.2s ease;
}

.hero-age.monthiversary .age-text {
    background: linear-gradient(
        90deg,
        var(--terminal-red),
        var(--terminal-yellow),
        var(--terminal-green),
        var(--terminal-cyan),
        var(--terminal-blue),
        var(--terminal-magenta)
    );
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: rainbow-shift 3s linear infinite;
}

.hero-age.monthiversary .age-badge {
    display: inline-block;
    margin-left: 12px;
    padding: 2px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: linear-gradient(
        90deg,
        var(--terminal-red),
        var(--terminal-yellow),
        var(--terminal-green),
        var(--terminal-cyan),
        var(--terminal-blue),
        var(--terminal-magenta)
    );
    background-size: 200% 100%;
    animation: rainbow-shift 3s linear infinite;
    color: #2e3440;
}

@keyframes rainbow-shift {
    0%   { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* --- sections --- */
section {
    margin-bottom: 56px;
}

section > h2 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--on-surface);
    margin-bottom: 20px;
    letter-spacing: 0.03em;
}

/* --- markdown content --- */
.md-content {
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    border-radius: 12px;
    padding: 32px 36px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--on-surface);
}

.md-content h1 { font-size: 1.8rem; margin: 0 0 16px; }
.md-content h2 { font-size: 1.5rem; margin: 28px 0 12px; color: var(--primary); }
.md-content h3 { font-size: 1.25rem; margin: 24px 0 10px; }
.md-content p  { margin-bottom: 16px; }
.md-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    display: block;
    margin: 8px 0 16px;
}
.md-content ul, .md-content ol { padding-left: 24px; margin-bottom: 16px; }
.md-content li { margin-bottom: 6px; }
.md-content a  { color: var(--primary); text-decoration: none; }
.md-content a:hover { text-decoration: underline; }
.md-content code {
    font-family: 'Geist Mono', monospace;
    font-size: 0.9em;
    background: var(--surface-container-high);
    padding: 2px 6px;
    border-radius: 4px;
}
.md-content pre {
    background: var(--surface-dim);
    border: 1px solid var(--outline-variant);
    border-radius: 8px;
    padding: 16px 20px;
    overflow-x: auto;
    margin-bottom: 16px;
}
.md-content pre code {
    background: none;
    padding: 0;
}
.md-content blockquote {
    border-left: 3px solid var(--primary);
    padding-left: 16px;
    color: var(--on-surface-variant);
    margin-bottom: 16px;
}

/* --- credits --- */
.credits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.credit-card {
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    border-radius: 12px;
    padding: 28px;
    transition: border-color 0.15s, transform 0.15s;
}

.credit-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.credit-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--on-surface);
    margin-bottom: 8px;
}

.credit-desc {
    font-size: 0.95rem;
    color: var(--on-surface-variant);
    margin-bottom: 16px;
    line-height: 1.6;
}

.credit-desc p { margin-bottom: 8px; }
.credit-desc a { color: var(--primary); text-decoration: none; }
.credit-desc a:hover { text-decoration: underline; }

.credit-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.credit-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--outline-variant);
    border-radius: 8px;
    color: var(--on-surface-variant);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: all 0.15s;
    background: var(--surface-container-low);
}

.credit-link:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--surface-container-high);
}

.credit-icon {
    width: 18px;
    height: 18px;
    filter: var(--custom-filter);
}

/* --- shortcuts --- */
.shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}

.shortcut-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 20px;
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    border-radius: 12px;
    color: var(--on-surface);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 500;
    transition: all 0.15s;
}

.shortcut-btn:hover {
    border-color: var(--primary);
    background: var(--surface-container-high);
    transform: translateY(-2px);
}

/* --- gallery --- */
.gallery-title {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 28px;
    color: var(--on-surface);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.gallery-item {
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s;
}

.gallery-item:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
}

.gallery-item img {
    width: 100%;
    aspect-ratio: 16/10;
    object-fit: cover;
    display: block;
}

.gallery-label {
    padding: 12px 16px;
    font-size: 0.95rem;
    color: var(--on-surface);
    font-weight: 500;
}

.gallery-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--outline);
    font-size: 1rem;
}

/* --- lightbox --- */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    flex-direction: column;
    padding: 32px;
}

.lightbox.open {
    display: flex;
}

.lightbox-close {
    position: absolute;
    top: 16px;
    right: 24px;
    background: none;
    border: none;
    color: var(--on-surface);
    font-size: 2.5rem;
    cursor: pointer;
    z-index: 1001;
    line-height: 1;
    opacity: 0.7;
    transition: opacity 0.15s;
}

.lightbox-close:hover {
    opacity: 1;
}

.lightbox-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 90vw;
    max-height: 80vh;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 70vh;
    border-radius: 8px;
    object-fit: contain;
}

.lightbox-info {
    text-align: center;
    margin-top: 16px;
}

.lightbox-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--on-surface);
    margin-bottom: 4px;
}

.lightbox-desc {
    font-size: 0.95rem;
    color: var(--on-surface-variant);
    max-width: 600px;
    line-height: 1.5;
}

.lightbox-actions {
    margin-top: 16px;
}

.lightbox-download {
    display: inline-block;
    padding: 10px 24px;
    background: var(--primary);
    color: var(--on-primary);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: opacity 0.15s;
}

.lightbox-download:hover {
    opacity: 0.85;
}

/* --- stuff page --- */
.stuff-section {
    max-width: 800px;
}

.stuff-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
}

.stuff-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 18px 22px;
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.15s;
    color: var(--on-surface);
}

.stuff-card:hover {
    border-color: var(--primary);
    background: var(--surface-container-high);
    transform: translateY(-2px);
}

.stuff-card-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stuff-card-title {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--on-surface);
}

.stuff-empty {
    color: var(--outline);
    font-size: 1rem;
    text-align: center;
    padding: 40px 0;
}

.stuff-nav {
    margin-bottom: 16px;
}

.stuff-nav a {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
}

.stuff-nav a:hover {
    text-decoration: underline;
}

/* --- say hi / guestbook --- */
.hi-banner {
    display: block;
    width: 100%;
    max-width: 480px;
    margin: 0 auto 28px;
    border-radius: 16px;
    border: 1px solid var(--outline-variant);
}

.hi-intro {
    color: var(--on-surface-variant);
    margin-bottom: 24px;
    font-size: 1.05rem;
}

.hi-form {
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.hi-form input[type="text"],
.hi-form textarea {
    font: inherit;
    font-size: 1rem;
    background: var(--surface-dim);
    color: var(--on-surface);
    border: 1px solid var(--outline-variant);
    border-radius: 8px;
    padding: 12px 14px;
    resize: vertical;
}

.hi-form input[type="text"]:focus,
.hi-form textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.hi-form-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.hi-private-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    color: var(--on-surface-variant);
    cursor: pointer;
}

.hi-private-label input {
    accent-color: var(--primary);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.hi-submit {
    font: inherit;
    font-size: 1rem;
    font-weight: 500;
    padding: 10px 28px;
    background: var(--primary);
    color: var(--on-primary);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity 0.15s;
}

.hi-submit:hover {
    opacity: 0.85;
}

.hi-status {
    font-size: 0.9rem;
    min-height: 1.4em;
    color: var(--outline);
}

.hi-status-good {
    color: var(--terminal-green);
}

.hi-status-bad {
    color: var(--terminal-red);
}

.hi-wall {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.hi-card {
    background: var(--surface-container);
    border: 1px solid var(--outline-variant);
    border-radius: 12px;
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hi-card-private {
    border-color: var(--terminal-magenta);
}

.hi-card-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
}

.hi-card-name {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--on-surface);
}

.hi-card-time {
    font-size: 0.8rem;
    color: var(--outline);
    font-variant-numeric: tabular-nums;
}

.hi-card-msg {
    font-size: 0.98rem;
    color: var(--on-surface-variant);
    line-height: 1.6;
    word-break: break-word;
}

.hi-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 20px;
    color: var(--outline);
}

/* --- footer --- */
.site-footer {
    border-top: 1px solid var(--outline-variant);
    padding: 20px 24px;
    background: var(--surface-container-lowest);
}

.footer-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--outline);
}

.footer-sep {
    opacity: 0.4;
}

.footer-mail {
    color: var(--primary);
    text-decoration: none;
    transition: opacity 0.15s;
}

.footer-mail:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.footer-uptime {
    font-variant-numeric: tabular-nums;
}

/* --- responsive: mobile burger menu --- */
@media (max-width: 640px) {
    body { font-size: 16px; }

    .page { padding: 32px 16px; }

    .hero-title { font-size: 2.8rem; }
    .hero-age { font-size: 1.1rem; }

    .topbar-inner {
        overflow: visible;
    }

    .burger {
        display: flex;
    }

    .topbar-links {
        position: fixed;
        top: 56px;
        left: 0;
        width: 220px;
        height: calc(100vh - 56px);
        background: var(--surface-container);
        border-right: 1px solid var(--outline-variant);
        flex-direction: column;
        padding: 24px;
        gap: 0;
        z-index: 200;
        flex: none;
        overflow: visible;
        transform: translateX(-105%);
        transition: transform 0.25s ease;
    }

    .topbar-links.open {
        transform: translateX(0);
    }

    .topbar-links a {
        padding: 14px 0;
        font-size: 1rem;
        border-bottom: 1px solid var(--outline-variant);
    }

    .topbar-links a:last-child {
        border-bottom: none;
    }

    .nav-overlay.open {
        display: block;
        position: fixed;
        inset: 0;
        top: 56px;
        background: rgba(0,0,0,0.4);
        z-index: 150;
    }

    .credits-grid { grid-template-columns: 1fr; }
    .shortcuts-grid { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); }

    .md-content { padding: 20px 24px; font-size: 1rem; }
}