/* ── tokens ── */
:root {
  --font: "JetBrains Mono", "Courier New", monospace;

  --amber: #E8C547;
  --amber-dim: #c9a93a;

  /* light */
  --bg: #F5F4F0;
  --bg-2: #EDECEA;
  --text: #1A1A1A;
  --text-2: #555550;
  --text-3: #999990;
  --border: #D8D7D2;
  --link: #1A1A1A;
}

[data-theme="dark"],
[data-theme="auto"] {
  --bg: #0F0F0D;
  --bg-2: #181816;
  --text: #E8E6DF;
  --text-2: #E8E6DF;
  --text-3: #E8E6DF;
  --border: #2A2A26;
  --link: #E8E6DF;
}

@media (prefers-color-scheme: light) {
  [data-theme="auto"] {
    --bg: #F5F4F0;
    --bg-2: #EDECEA;
    --text: #1A1A1A;
    --text-2: #555550;
    --text-3: #999990;
    --border: #D8D7D2;
    --link: #1A1A1A;
  }
}

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

html {
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  transition: background 0.2s, color 0.2s;
}

/* ── links ── */
a {
  color: var(--link);
  text-decoration: none;
}
a:hover { color: var(--amber); }

/* ── header / nav ── */
.site-header {
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

.nav {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--amber);
  letter-spacing: 0.04em;
  text-transform: lowercase;
  flex-shrink: 0;
}
.nav-logo:hover { color: var(--amber-dim); }

.nav-links {
  display: flex;
  gap: 24px;
  flex: 1;
}

.nav-links a {
  font-size: 0.8rem;
  color: var(--text-2);
  letter-spacing: 0.06em;
  text-transform: lowercase;
  transition: color 0.15s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
}
.nav-links a.active {
  color: var(--amber);
}

.nav-right {
  margin-left: auto;
}

.lang-switch {
  font-size: 0.75rem;
  color: var(--text-3);
  letter-spacing: 0.08em;
  text-transform: lowercase;
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: 2px;
  transition: color 0.15s, border-color 0.15s;
}
.lang-switch:hover {
  color: var(--amber);
  border-color: var(--amber);
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-3);
  font-family: var(--font);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 2px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  
}
.theme-toggle:hover {
  color: var(--amber);
  border-color: var(--amber);
}

/* ── main ── */
.main {
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── home ── */
.home {
  padding: 96px 0 64px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.home-identity {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.home-name {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.2;
}

/* blinking cursor */
.cursor {
  color: var(--amber);
  animation: blink 1.1s step-end infinite;
  font-weight: 300;
  margin-left: 2px;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

.home-tagline {
  font-size: 0.85rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
  font-style: italic;
}

.home-links {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
}

.ext-link {
  color: var(--text-2);
  letter-spacing: 0.06em;
  transition: color 0.15s;
  text-transform: lowercase;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
}
.ext-link:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}
.sep {
  color: var(--text-3);
  font-size: 0.7rem;
}

/* ── page sections ── */
.page-section {
  padding: 64px 0 80px;
}

.page-title {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 40px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* ── notes list ── */
.notes-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.note-item {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.note-date {
  font-size: 0.75rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
  flex-shrink: 0;
}

.note-link {
  font-size: 0.9rem;
  color: var(--text);
  transition: color 0.15s;
}
.note-link:hover { color: var(--amber); }

.empty {
  font-size: 0.85rem;
  color: var(--text-3);
  font-style: italic;
}

/* ── single note ── */
.note-single {
  padding: 64px 0 80px;
}

.note-header {
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.note-header .note-date {
  display: block;
  margin-bottom: 10px;
}

.note-title {
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.note-footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.back-link {
  font-size: 0.8rem;
  color: var(--text-3);
  letter-spacing: 0.04em;
  transition: color 0.15s;
}
.back-link:hover { color: var(--amber); }

/* ── about page ── */
.about-page .about-content {
  max-width: 700px;
}

/* ── prose ── */
.prose {
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--text);
}
.prose p { margin-bottom: 1.4em; }
.prose p:last-child { margin-bottom: 0; }

.prose h2 {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin: 2.4em 0 1em;
}
.prose h3 {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--amber);
  margin: 1.8em 0 0.6em;
}

.prose a {
  color: var(--amber);
  border-bottom: 1px solid var(--amber-dim);
  transition: opacity 0.15s;
}
.prose a:hover { opacity: 0.75; }

.prose ul, .prose ol {
  padding-left: 1.4em;
  margin-bottom: 1.4em;
}
.prose li { margin-bottom: 0.3em; }

.prose code {
  font-family: var(--font);
  font-size: 0.85em;
  background: var(--bg-2);
  padding: 1px 5px;
  border-radius: 2px;
  color: var(--amber);
}
.prose pre {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 16px 20px;
  overflow-x: auto;
  margin-bottom: 1.4em;
}
.prose pre code {
  background: none;
  padding: 0;
  color: var(--text);
}

.prose blockquote {
  border-left: 2px solid var(--amber);
  padding-left: 16px;
  color: var(--text-2);
  font-style: italic;
  margin: 1.6em 0;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.4em 0;
}

/* ── cv link ── */
.cv-link {
  display: inline-block;
  margin-top: 12px;
  font-size: 0.8rem;
  color: var(--amber);
  border: 1px solid var(--amber-dim);
  padding: 5px 14px;
  border-radius: 2px;
  letter-spacing: 0.06em;
  transition: background 0.15s, color 0.15s;
}
.cv-link:hover {
  background: var(--amber);
  color: var(--bg);
}

/* ── footer ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  text-align: center;
  font-size: 0.7rem;
  color: var(--text-3);
  letter-spacing: 0.06em;
}

/* ── responsive ── */
@media (max-width: 700px) {
  .nav { gap: 16px; padding: 0 16px; }
  .nav-links { gap: 16px; }
  .main { padding: 0 16px; }
  .home { padding: 64px 0 48px; }
  .note-item { grid-template-columns: 1fr; gap: 4px; }
  .site-footer { padding: 16px; }
}