/* ── Tokens ─────────────────────────────────────────── */
:root {
  --bg:                  #faf8ff;
  --surface:             #ffffff;
  --surface-card:        #ffffff;
  --surface-hover:       #f2f3ff;
  --surface-container:   #eaedff;
  --text:                #131b2e;
  --muted:               #3e484d;
  --outline:             #6e797e;
  --outline-variant:     #bdc8ce;
  --accent:              #00647c;
  --accent-container:    #007f9d;
  --secondary-container: #d0e1fb;
  --inverse-surface:     #283044;
  --font-mono:           'JetBrains Mono', monospace;
  --font-body:           'Geist', sans-serif;
  --max-w:               1280px;
  --margin-desktop:      64px;
  --margin-mobile:       16px;
  --gutter:              24px;
  --radius:              4px;
  --radius-lg:           8px;
}

/* ── Reset ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  padding-top: 64px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Nav ─────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 56px;
  background: rgba(250,248,255,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.nav__inner {
  width: 100%;
  max-width: var(--max-w);
  padding: 0 var(--margin-desktop);
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__brand {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 700;
  margin-right: auto;
}

.nav__link {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.15s;
  text-decoration: none;
}

.nav__link:hover { color: var(--accent); text-decoration: none; }

.nav__link.active {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 4px;
  position: relative;
}

/* ── Layout ──────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem var(--margin-desktop);
}

/* ── Hero ────────────────────────────────────────────── */
.hero {
  margin-bottom: 3rem;
}

.hero__prompt {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.hero__name {
  font-family: var(--font-body);
  font-size: 2.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 0.75rem;
}

.hero__bio {
  color: var(--muted);
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--accent);
  color: #ffffff;
  padding: 8px 24px;
  border-radius: var(--radius);
  transition: background 0.15s;
  text-decoration: none;
}

.btn-primary:hover {
  background: var(--accent-container);
  text-decoration: none;
  color: #ffffff;
}

.btn-ghost {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: transparent;
  color: var(--text);
  padding: 8px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--outline-variant);
  transition: border-color 0.15s, color 0.15s;
  text-decoration: none;
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* ── Section heading ─────────────────────────────────── */
.section-heading {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

/* ── Project cards ───────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gutter);
  margin-bottom: 3rem;
}

.card {
  background: var(--surface-card);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.15s;
}

.card:hover {
  border-color: var(--accent);
  background: var(--surface-card);
  box-shadow: none;
}

.card__name {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.card__desc {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--muted);
  flex: 1;
}

.card__status {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.card__status--deployed { color: var(--accent); }
.card__status--private  { color: var(--muted); }

.card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.25rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--muted);
  background: var(--surface-container);
  padding: 2px 8px;
  border-radius: var(--radius);
}

.btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #ffffff;
  background: var(--accent);
  border: none;
  padding: 4px 12px;
  border-radius: var(--radius);
  transition: background 0.15s;
  text-decoration: none;
}

.btn:hover {
  background: var(--accent-container);
  text-decoration: none;
  color: #ffffff;
}

.badge-private {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted);
  background: var(--surface-container);
  border: 1px solid var(--outline-variant);
  padding: 3px 10px;
  border-radius: var(--radius);
}

/* ── Blog header ─────────────────────────────────────── */
.blog-header {
  margin-bottom: 2rem;
}

.blog-header__title {
  font-family: var(--font-body);
  font-size: 2rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 0.25rem;
  margin-bottom: 0.5rem;
}

.blog-header__subtitle {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--muted);
}

/* ── Filter tabs ─────────────────────────────────────── */
.filter-tabs {
  display: flex;
  gap: 2rem;
  border-bottom: 1px solid var(--outline-variant);
  margin-bottom: 2rem;
  overflow-x: auto;
}

.filter-tab {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  padding-bottom: 0.75rem;
  white-space: nowrap;
  cursor: default;
  border: none;
  background: none;
  transition: color 0.15s;
}

.filter-tab:hover { color: var(--text); }

.filter-tab--active {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

/* ── Bento grid ──────────────────────────────────────── */
.post-bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gutter);
  margin-bottom: 2rem;
}

.post-bento--featured {
  grid-column: span 8;
  background: var(--surface-card);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.15s;
  text-decoration: none;
}

.post-bento--featured:hover { border-color: var(--accent); text-decoration: none; }

.post-bento--secondary {
  grid-column: span 4;
  background: var(--surface-card);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.15s;
  text-decoration: none;
}

.post-bento--secondary:hover { border-color: var(--accent); text-decoration: none; }

.post-bento__badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--accent);
  color: #ffffff;
  padding: 3px 12px;
  border-radius: 9999px;
  width: fit-content;
}

.post-bento__meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
}

.post-bento__title {
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
  transition: color 0.15s;
}

.post-bento--secondary .post-bento__title {
  font-size: 1.125rem;
}

.post-bento--featured:hover .post-bento__title,
.post-bento--secondary:hover .post-bento__title { color: var(--accent); }

.post-bento__excerpt {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--muted);
  flex: 1;
}

.post-bento__tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: auto;
}

/* ── Archived logs ───────────────────────────────────── */
.archived-logs__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--outline);
  margin-top: 40px;
  margin-bottom: 0;
  display: block;
}

.archived-logs__list {
  list-style: none;
}

.archived-log-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--outline-variant);
  transition: background 0.15s, padding 0.15s, margin 0.15s;
}

.archived-log-row:hover {
  background: var(--surface-hover);
  padding-left: 8px;
  padding-right: 8px;
  margin-left: -8px;
  margin-right: -8px;
}

.archived-log-row__left {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  min-width: 0;
}

.archived-log-row__date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  width: 6rem;
  flex-shrink: 0;
}

.archived-log-row__title {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition: color 0.15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.archived-log-row:hover .archived-log-row__title { color: var(--accent); }

.archived-log-row__right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  margin-left: 1rem;
}

.archived-log-row__arrow {
  color: var(--outline);
  font-size: 0.875rem;
  transition: color 0.15s, transform 0.15s;
  display: inline-block;
}

.archived-log-row:hover .archived-log-row__arrow {
  color: var(--accent);
  transform: translateX(2px);
}

/* ── Blog post page ──────────────────────────────────── */
.post {
  padding: 3rem var(--margin-desktop);
  max-width: 720px;
  margin: 0 auto;
}

.post__breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.post__title {
  font-family: var(--font-body);
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.post__date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.post__body p {
  margin-bottom: 1.25rem;
  font-family: var(--font-body);
  line-height: 1.75;
}

.post__body h2 {
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--accent);
  margin: 2rem 0 0.75rem;
}

.post__body a { color: var(--accent); }
.post__body a:hover { text-decoration: underline; }

.post__tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.post__back {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
}

/* ── About page ──────────────────────────────────────── */
.about__section { margin-bottom: 2rem; }

.about__heading {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
}

.skill-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem 2rem;
}

.skill-grid__label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.skill-grid__items {
  list-style: none;
  font-family: var(--font-body);
  font-size: 0.875rem;
}

.skill-grid__items li::before {
  content: '▸ ';
  color: var(--accent);
}

/* ── 404 ─────────────────────────────────────────────── */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 56px);
  text-align: center;
  gap: 1.5rem;
}

.error-page__code {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent);
}

.error-page__links {
  display: flex;
  gap: 1rem;
}

/* ── Responsive ──────────────────────────────────────── */
@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .post-bento--featured { grid-column: span 12; }
  .post-bento--secondary { grid-column: span 12; }
}

@media (max-width: 640px) {
  .cards { grid-template-columns: 1fr; }
  .skill-grid { grid-template-columns: 1fr; }
  .container { padding: 3rem var(--margin-mobile); }
  .post { padding: 3rem var(--margin-mobile); }
  .nav__inner { padding: 0 var(--margin-mobile); }
  .filter-tabs { gap: 1rem; }
  .archived-log-row__right { display: none; }
}

@media (max-width: 480px) {
  .nav__inner { flex-wrap: wrap; gap: 0.75rem; padding: 0.5rem var(--margin-mobile); }
  .nav { height: auto; min-height: 56px; }
  body { padding-top: 90px; }
  .nav__brand { width: 100%; }
}