/* Self-hosted so the CSP can stay 'self'-only. All three fonts are OFL. */
@font-face {
    font-family: "Geist";
    src: url("/fonts/geist.woff2") format("woff2");
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Geist Mono";
    src: url("/fonts/geist-mono.woff2") format("woff2");
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: "Signature";
    src: url("/fonts/great-vibes.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

:root {
    --text: #0a0a0a;
    --muted: #737373;
    /* Third tone, for decoration only (index numbers), never for text
       that has to be read: it is below WCAG contrast on purpose. */
    --faint: #c4c4c4;
    --background: #ffffff;
    --rule: #e5e5e5;
    --underline: #d4d4d4;
    --surface: #f5f5f5;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
    --mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
    color-scheme: light;
}

[data-theme="dark"] {
    --text: #ededed;
    --muted: #a1a1a1;
    --faint: #4d4d4d;
    --background: #0a0a0a;
    --rule: #262626;
    --underline: #525252;
    --surface: #1c1c1c;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    color-scheme: dark;
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--background);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

main {
    max-width: 680px;
    margin: 0 auto;
    padding: 160px 24px 64px;
}

/* ---------- Type ---------- */

.signature {
    font-family: "Signature", cursive;
    font-weight: 400;
    font-size: clamp(3rem, 9vw, 4.75rem);
    line-height: 1.15;
    letter-spacing: 0;
    /* The script's swashes overhang its box; keep them inside the column. */
    padding: 0 0.1em;
    margin-left: -0.1em;
}

.page-title {
    font-size: 2rem;
    font-weight: 500;
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.lede {
    margin-top: 0.75rem;
    color: var(--muted);
}

h2 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--muted);
    margin: 3.5rem 0 1rem;
}

.prose {
    margin-top: 2rem;
}

.prose p {
    color: var(--muted);
    margin-bottom: 1rem;
}

/* The home page carries two bios: the full one, and a two-line one
   for phones, where the whole page fits on one screen. */
.bio-mobile {
    display: none;
}

/* Links stay monochrome; a faint underline marks them. */
a {
    color: var(--text);
    text-decoration: underline;
    text-decoration-color: var(--underline);
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
}

a:hover {
    text-decoration-color: currentColor;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 2px;
    border-radius: 4px;
}

ul {
    list-style: none;
}

/* ---------- Lists (projects, writing, books) ---------- */

.rows li {
    position: relative;
    padding: 1.1rem 0;
    border-top: 1px solid var(--rule);
    scroll-margin-top: 6rem;
}

.rows li:last-child {
    border-bottom: 1px solid var(--rule);
}

.row-title {
    font-weight: 500;
    text-decoration: none;
}

/* Stretch the title link over the whole row. */
.row-title::after {
    content: "";
    position: absolute;
    inset: 0;
}

.rows li:hover .row-title {
    text-decoration: underline;
    text-decoration-color: currentColor;
}

.row-meta {
    float: right;
    margin-left: 1rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--muted);
    font-variant-numeric: tabular-nums;
}

.row-desc {
    margin-top: 0.2rem;
    font-size: 0.925rem;
    line-height: 1.6;
    color: var(--muted);
}

/* Projects: name, kind, and a faint index number, then a preview. */
.row-index {
    float: right;
    margin-left: 1rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--faint);
}

.row-kind {
    font-size: 0.925rem;
    color: var(--muted);
}

.projects .row-desc {
    margin-top: 0.5rem;
}

.preview {
    margin-top: 1rem;
    padding: clamp(12px, 5%, 36px);
    background: var(--surface);
    border-radius: 12px;
}

.preview img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 6px;
    box-shadow: 0 0 0 1px var(--rule), var(--shadow);
}

@media (hover: hover) and (prefers-reduced-motion: no-preference) {
    .preview img {
        transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
    }

    .projects li:hover .preview img {
        transform: translateY(-3px);
    }
}

.inline-links li {
    display: inline;
}

.inline-links li + li::before {
    content: "\00A0\00B7\00A0";
    color: var(--muted);
}

/* ---------- GitHub graph ---------- */

.contrib-meta {
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 0.75rem;
}

.contrib-wrap {
    overflow-x: auto;
    padding-bottom: 4px;
}

.contrib-hint {
    display: none;
}

.contrib-graph {
    display: grid;
    grid-template-rows: repeat(7, 9px);
    grid-auto-flow: column;
    grid-auto-columns: 9px;
    gap: 3px;
    width: max-content;
}

.contrib-cell {
    width: 9px;
    height: 9px;
    border-radius: 2px;
    background: var(--surface);
}

.contrib-pad {
    background: transparent;
}

.contrib-cell[data-level="1"] {
    background: color-mix(in srgb, var(--text) 22%, var(--surface));
}

.contrib-cell[data-level="2"] {
    background: color-mix(in srgb, var(--text) 45%, var(--surface));
}

.contrib-cell[data-level="3"] {
    background: color-mix(in srgb, var(--text) 70%, var(--surface));
}

.contrib-cell[data-level="4"] {
    background: var(--text);
}

/* ---------- Subscribe ---------- */

.subscribe {
    display: flex;
    gap: 8px;
    margin-top: 2rem;
}

.subscribe input[type="email"] {
    flex: 1;
    min-width: 0;
    min-height: 44px;
    padding: 0 0.9rem;
    font: inherit;
    color: var(--text);
    background: var(--background);
    border: 1px solid var(--rule);
    border-radius: 10px;
}

.subscribe input[type="email"]::placeholder {
    color: var(--muted);
}

.subscribe button {
    min-height: 44px;
    padding: 0 1.1rem;
    font: inherit;
    font-weight: 500;
    color: var(--background);
    background: var(--text);
    border: 0;
    border-radius: 10px;
    cursor: pointer;
    white-space: nowrap;
}

.subscribe button:hover {
    opacity: 0.85;
}

.subscribe-note {
    margin-top: 0.6rem;
    font-size: 0.85rem;
    color: var(--muted);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- Header + pill nav ---------- */

/* Fades content out as it scrolls under the floating nav. */
.top-fade {
    position: fixed;
    inset: 0 0 auto;
    height: 96px;
    background: linear-gradient(var(--background) 30%, transparent);
    pointer-events: none;
    z-index: 8;
}

.site-header {
    position: fixed;
    inset: 16px 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 28px;
    pointer-events: none;
    z-index: 9;
}

.local-zone,
.local-clock {
    position: absolute;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.local-zone {
    left: 28px;
}

.local-clock {
    right: 28px;
}

.pill {
    display: flex;
    align-items: center;
    gap: 2px;
    padding: 4px;
    background: var(--background);
    border: 1px solid var(--rule);
    border-radius: 999px;
    box-shadow: var(--shadow);
    pointer-events: auto;
}

.pill-link,
.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    min-width: 40px;
    justify-content: center;
    padding: 0 12px;
    font: inherit;
    font-size: 0.875rem;
    color: var(--text);
    text-decoration: none;
    background: transparent;
    border: 0;
    border-radius: 999px;
    cursor: pointer;
}

.pill-link:hover,
.theme-toggle:hover {
    background: var(--surface);
}

.pill-link[aria-current="page"] {
    background: var(--surface);
    box-shadow: inset 0 0 0 1px var(--rule);
}

.pill-link svg,
.theme-toggle svg {
    width: 16px;
    height: 16px;
    flex: none;
}

.pill-sep {
    width: 1px;
    height: 20px;
    margin: 0 4px;
    background: var(--rule);
}

.theme-toggle svg {
    display: none;
}

[data-theme="light"] .theme-toggle .icon-moon,
[data-theme="dark"] .theme-toggle .icon-sun {
    display: block;
}

/* ---------- Footer ---------- */

footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-top: 6rem;
    font-size: 0.875rem;
    color: var(--muted);
}

footer .owner {
    color: var(--text);
}

.socials {
    display: flex;
    gap: 4px;
}

.socials a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    color: var(--muted);
    border-radius: 10px;
}

.socials a:hover {
    color: var(--text);
    background: var(--surface);
}

.socials svg {
    width: 18px;
    height: 18px;
}

/* ---------- Motion ---------- */

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }

    /* Staggered entrance. Heavier things move slower: the title rises
       further and takes longer, then each block follows a beat apart. */
    main > *,
    .prose p {
        animation: reveal 0.7s cubic-bezier(0.2, 0.7, 0.2, 1) both;
        animation-delay: calc(120ms + var(--i, 0) * 90ms);
    }

    main > .prose {
        animation: none;
    }

    main > :first-child {
        animation: reveal-heavy 1.2s cubic-bezier(0.16, 1, 0.3, 1) both;
    }

    main > :nth-child(2) { --i: 1; }
    main > :nth-child(3) { --i: 2; }
    main > :nth-child(4) { --i: 3; }
    main > :nth-child(5) { --i: 4; }
    .prose p:nth-child(1) { --i: 1; }
    .prose p:nth-child(2) { --i: 2; }
    .prose p:nth-child(3) { --i: 3; }
    .prose p:nth-child(4) { --i: 4; }
    main > footer:last-child { --i: 6; }

    body,
    .pill,
    .top-fade {
        transition: background 0.2s ease, color 0.2s ease,
            border-color 0.2s ease;
    }
}

@keyframes reveal {
    from {
        opacity: 0;
        transform: translateY(8px);
        filter: blur(3px);
    }
}

@keyframes reveal-heavy {
    from {
        opacity: 0;
        transform: translateY(20px);
        filter: blur(6px);
    }
}

/* ---------- Small screens: nav moves to the bottom ---------- */

@media (max-width: 768px) {
    main {
        padding-top: 72px;
        padding-bottom: 120px;
    }

    /* Home: name, short bio, footer, nav, all on one screen. */
    .home main {
        display: flex;
        flex-direction: column;
        min-height: 100dvh;
        padding-top: clamp(24px, 6dvh, 56px);
        padding-bottom: calc(96px + env(safe-area-inset-bottom));
    }

    .home .signature {
        font-size: clamp(2.75rem, 15vw, 4.5rem);
        line-height: 1.05;
    }

    .home .prose {
        margin-top: clamp(12px, 3dvh, 28px);
    }

    .home footer {
        margin-top: auto;
        padding-top: 2rem;
    }

    .bio-desktop {
        display: none;
    }

    .bio-mobile {
        display: block;
    }

    .bio-mobile p {
        font-size: clamp(15px, 2dvh, 17px);
        line-height: 1.55;
        margin-bottom: clamp(8px, 1.5dvh, 14px);
    }

    .top-fade,
    .local-zone,
    .local-clock {
        display: none;
    }

    .site-header {
        inset: auto 0 max(16px, env(safe-area-inset-bottom));
        padding: 0 16px;
    }

    /* Icons only; the labels stay readable to screen readers. */
    .pill-label {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
    }

    .pill-link,
    .theme-toggle {
        padding: 0;
        min-width: 44px;
        min-height: 44px;
    }

    .socials a {
        width: 44px;
        height: 44px;
    }

    .subscribe {
        flex-direction: column;
    }

    .preview {
        padding: 10px;
        border-radius: 10px;
    }

    .row-meta {
        float: none;
        display: block;
        margin: 0 0 0.15rem;
    }

    .contrib-hint {
        display: block;
        margin-top: 0.5rem;
        font-size: 0.85rem;
        color: var(--muted);
    }
}