:root {
    --paper: #edebe3;
    --paper-raised: #efede6;
    --ink: #21201c;
    --ink-soft: #6b6a62;
    --line: #dad7CC;
    --accent: #3d5a80;
    --accent-soft: #dde4ec;
    --radius: 3px;
    --font-sans: "Inter", sans-serif;
    --font-mono: "IBM Plex Mono", monospace;
    --font-serif: "Fraunces", serif;
}

[data-theme="dark"] {
    --paper: #17181a;
    --paper-raised: #1b1c1e;
    --ink: #eceae2;
    --ink-soft: #9c9a8f;
    --line: #2e2f2a;
    --accent: #8fb3d9;
    --accent-soft: #1f2a35;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--paper);
    color: var(--ink);
    line-height: 1.55;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

.tag, .contact, .eyebrow, .entry time, .card .index,
.stack-chip, .skill-group-title, .chips, footer, .to-top {
    font-family: var(--font-mono);
}

h1 {
    font-family: var(--font-serif);
    font-weight: 500;
    font-size: clamp(40px, 7vw, 64px);
    line-height: 1.05;
    }

.wrap {
    max-width: 760px;
    margin: 0 auto;
    padding: 0 28px;
}

header {
    padding: 96px 0 64px;
}

section {
    padding: 42px 0;
    border-top: 1px solid var(--line);
}

.link, .to-top {
    text-decoration: none;
    border-bottom: 1px solid var(--line);
}

.to-top {
    color: var(--ink-soft);
}

.link {
    color: var(--ink);
    padding-bottom: 1px;
}

.link:hover, .to-top:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.contact {
    margin-top: 30px;
    gap: 18px;
    font-size: 13px;
    display: flex;
    flex-wrap: wrap;
}

.tag {
    background-color: var(--accent-soft);
    color: var(--accent);
    display: inline-block;
    font-size: 12px;
    letter-spacing: 0.06em;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 4px 10px;
    margin-bottom: 22px;
}

.eyebrow, .skill-group-title {
    color: var(--ink-soft);
    font-size: 12px;
}

.eyebrow {
    margin-bottom: 22px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.skill-group-title {
    font-weight: 500;
    margin-bottom: 10px;
}

#about p {
    color: var(--ink-soft);
    font-size: 16px;
}

.entry {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 20px;
    padding: 18px 0;
}

.entry:last-child {
    border-bottom: none;
}

.entry time {
    color: var(--ink-soft);
    font-size: 12.5px;
    padding-top: 2px;
}

.entry h3 {
    font-size: 16.5px;
    font-weight: 600;
}

.entry p {
    color: var(--ink-soft);
    margin-top: 6px;
    font-size: 14.5px;
}

.entry .org {
    color: var(--accent);
    font-weight: 500;
}

.cards {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.card {
    background: var(--paper-raised);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 24px -14px rgba(23,24,26,0.25);
    border-color: var(--accent);
}

.card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
}

.card p {
    color: var(--ink-soft);
    font-size: 14px;
    margin-bottom: 16px;
    overflow: hidden;
    overflow-wrap: break-word;
    word-break: break-word;
}

.card .index {
    color: var(--ink-soft);
    font-size: 11px;
    padding-bottom: 2px;
}

.card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-top .link {
    font-size: 11px;
}

.stack {
    display: flex;
    flex-wrap: wrap;
    margin-top: auto;
    gap: 6px;
}

.stack-chip {
    background: color-mix(in srgb, var(--lang) 14%, var(--paper-raised));
    color: color-mix(in srgb, var(--lang) 70%, var(--ink));
    border: 1px solid color-mix(in srgb, var(--lang) 35%, var(--line));
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    padding: 4px 9px 4px 7px;
}

.stack-chip::before {
    background: var(--lang);
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.skill-group {
    margin-bottom: 22px;
}

.skill-group:last-child {
    margin-bottom: 0;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip {
    background: var(--paper-raised);
    color: var(--ink-soft);
    font-size: 12px;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 20px;
}

footer {
    color: var(--ink-soft);
    font-size: 12.5px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 14px;
    padding: 48px 0 80px;
}

.theme-toggle {
    background: var(--paper-raised);
    color: var(--ink);
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 10;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--line);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.theme-toggle svg {
    width: 17px;
    height: 17px;
}

.theme-toggle .sun,
[data-theme="dark"] .theme-toggle .moon { display: none; }
[data-theme="dark"] .theme-toggle .sun { display: block; }

.default { --lang: #6b7280; }
.java { --lang: #b07219; }
.rust { --lang: #ce422b; }
.go { --lang: #00add8; }
.gradle { --lang: #02303a; }
.javascript { --lang: #f0db4f; }
.react { --lang: #61dafb; }
.tailwind { --lang: #818cf8; }
.postgresql { --lang: #2e7d32; }

@media (max-width:640px) {
    header { padding: 64px 0 44px; }
    .entry { grid-template-columns: 1fr; gap: 6px; }
    .cards { grid-template-columns: 1fr; }
    .theme-toggle { top: 16px; right: 16px; }
}