:root {
  --bg: #fcfcfa;
  --bg-card: #ffffff;
  --bg-card-muted: #f1f0ea;
  --ink: #171714;
  --ink-dim: #75746b;
  --ink-faint: #a3a196;
  --rule: #ececea;
  --rule-soft: #f3f2ee;
  --accent: #f2e6a8;
  --accent-text: #7a6c28;
  --accent-soft: #faf5da;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-font-smoothing: antialiased; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.55;
}

a { color: var(--accent-text); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--ink-dim);
}

/* header */

.site-head {
  max-width: 470px;
  margin: 0 auto;
  padding: 56px 20px 28px;
  text-align: center;
  border-bottom: 1px solid var(--rule);
}

.avatar-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 30px;
}

.avatar {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1px solid var(--rule);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.title-wrap {
  position: relative;
  display: inline-block;
  margin: 10px 0 4px;
}

.title-scribble {
  position: absolute;
  left: -6px;
  bottom: -8px;
  width: 220px;
  height: 18px;
  color: var(--accent);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.avatar-fallback {
  display: none;
  align-items: center;
  justify-content: center;
  color: var(--accent-text);
}

.mark {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--accent-text);
}

.site-head h1 {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 24px;
  margin: 0;
  letter-spacing: -0.01em;
  position: relative;
  z-index: 1;
}

.site-head .sub {
  color: var(--ink-dim);
  font-size: 13.5px;
  margin: 0 0 14px;
}

.site-head .about {
  color: #4a493f;
  font-size: 13.5px;
  line-height: 1.55;
  max-width: 320px;
  margin: 0 auto 14px;
}

.location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-dim);
  margin: 0 0 12px;
}

.location svg {
  flex-shrink: 0;
  opacity: 0.75;
}

.links {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent-text);
}

.links .dot { margin: 0 8px; color: var(--rule); }

/* feed */

.feed {
  max-width: 470px;
  margin: 0 auto;
  padding: 28px 16px 20px;
}

.loading, .empty {
  text-align: center;
  color: var(--ink-faint);
  font-family: var(--mono);
  font-size: 13px;
  padding: 40px 0;
}

.project {
  border: 1px solid var(--rule);
  border-radius: 14px;
  background: var(--bg-card);
  margin-bottom: 16px;
  overflow: hidden;
}

.project-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 16px 12px;
}

.tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-dim);
  background: var(--bg-card-muted);
  padding: 2px 8px;
  border-radius: 20px;
}

.project-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--accent-soft);
  color: var(--accent-text);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 12px;
  flex-shrink: 0;
}

.project.done .project-icon {
  background: var(--bg-card-muted);
  color: var(--ink-dim);
}

.project-title {
  font-family: var(--mono);
  font-weight: 500;
  font-size: 15px;
  margin: 0;
  color: var(--ink);
  flex: 1;
}

.status {
  font-family: var(--mono);
  font-size: 10px;
  padding: 3px 9px;
  border-radius: 20px;
  flex-shrink: 0;
  white-space: nowrap;
}

.status.active {
  background: var(--accent);
  color: var(--accent-text);
}

.status.done {
  background: var(--bg-card-muted);
  color: var(--ink-dim);
}

.entries {
  padding: 0 16px 14px;
}

.log-entry {
  display: flex;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--rule-soft);
}

.log-entry .line {
  width: 2px;
  background: var(--rule);
  flex-shrink: 0;
}

.log-date {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-dim);
}

.log-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 6px;
  width: 100%;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  text-align: left;
  font: inherit;
  appearance: none;
  -webkit-appearance: none;
}

.log-chevron {
  margin-left: auto;
  color: var(--ink-faint);
  transition: transform 0.15s ease;
  flex-shrink: 0;
}

.log-entry.is-collapsed .log-chevron {
  transform: rotate(-90deg);
}

.log-entry.is-collapsed .log-content {
  display: none;
}

.log-entry.is-collapsed .log-meta {
  margin-bottom: 0;
}

.log-subtitle {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 12.5px;
  color: var(--ink-dim);
}

.log-part {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 10px;
  color: var(--accent-text);
  background: var(--accent-soft);
  padding: 2px 7px;
  border-radius: 10px;
}

.log-body p {
  margin: 0 0 6px;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.5;
}

.katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 4px 0;
}

.log-body p:last-child { margin-bottom: 0; }

.log-body p.quoted {
  font-style: italic;
}

.log-step {
  margin-top: 14px;
}

.log-closing {
  margin-top: 14px;
}

.log-closing p {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.5;
}

.log-closing p:last-child {
  margin-bottom: 0;
}

.log-step p {
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--ink);
  line-height: 1.5;
}

.log-step .log-image {
  margin-top: 0;
}

.log-image {
  width: 100%;
  border-radius: 8px;
  margin-top: 20px;
  display: block;
}

.log-image-caption {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 13px;
  color: var(--ink);
  text-align: center;
  margin-top: 8px;
}

.log-link {
  display: inline-block;
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 12.5px;
}

.log-link::after { content: " →"; }

.sources {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}

.sources-label {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  border: none;
  background: none;
  padding: 0;
  cursor: pointer;
  text-align: left;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.25em;
  color: var(--accent-text);
  margin-bottom: 10px;
  appearance: none;
  -webkit-appearance: none;
}

.sources.is-collapsed .sources-label {
  margin-bottom: 0;
}

.sources.is-collapsed .sources-list {
  display: none;
}

.sources .log-chevron {
  margin-left: auto;
}

.sources.is-collapsed .log-chevron {
  transform: rotate(-90deg);
}

.sources-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sources-list li {
  font-family: var(--mono);
  font-size: 12px;
  color: #4a493f;
  line-height: 1.5;
}

.sources-list a {
  color: var(--accent-text);
}

/* footer */

.site-foot {
  max-width: 470px;
  margin: 0 auto;
  padding: 16px 20px 60px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 12px;
}


@media (max-width: 480px) {
  .site-head { padding: 40px 16px 22px; }
  .feed { padding: 22px 12px 12px; }
}

@media (min-width: 900px) {
  .site-head,
  .feed,
  .site-foot {
    max-width: 640px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}
}

.sources-list a {
  color: var(--accent-text);
}

/* footer */

.site-foot {
  max-width: 470px;
  margin: 0 auto;
  padding: 16px 20px 60px;
  text-align: center;
  color: var(--ink-faint);
  font-size: 12px;
}


@media (max-width: 480px) {
  .site-head { padding: 40px 16px 22px; }
  .feed { padding: 22px 12px 12px; }
}

@media (min-width: 900px) {
  .site-head,
  .feed,
  .site-foot {
    max-width: 640px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}