/* ============================================================
   tokens
   ============================================================ */

:root {
  color-scheme: dark;

  --bg:            #0d0d0d;
  --surface:       #141414;
  --surface-hover: #1a1a1a;
  --text:          #ded9d0;
  --muted:         #8a8580;
  --border:        #232323;
  --border-hover:  #3a3a3a;

  --amber:         #ffb000;
  --amber-dim:     #7a5600;

  --maxw:          820px;
  --pad:           24px;
}

#theme-light:checked ~ .page {
  color-scheme: light;

  --bg:            #f4f1ea;
  --surface:       #fbf9f4;
  --surface-hover: #ffffff;
  --text:          #1a1a1a;
  --muted:         #6b6560;
  --border:        #ddd8ce;
  --border-hover:  #c4bdae;

  --amber:         #a85f00;
  --amber-dim:     #d9c9a8;
}

/* ============================================================
   base
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo,
               Consolas, "Liberation Mono", monospace;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--text);
  transition: background .2s ease, color .2s ease;
}

::selection {
  background: var(--amber);
  color: var(--bg);
}

a { color: inherit; }

/* ============================================================
   theme toggle
   ============================================================ */

.theme-input {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
  pointer-events: none;
}

.theme-toggle {
  display: inline-flex;
  border: 1px solid var(--border);
  transition: border-color .2s ease;
}

.theme-toggle label {
  padding: 4px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted);
  cursor: pointer;
  user-select: none;
  transition: color .2s ease, background .2s ease;
}

.theme-toggle label + label {
  border-left: 1px solid var(--border);
}

.theme-toggle label:hover { color: var(--text); }

#theme-dark:checked  ~ .page label[for="theme-dark"],
#theme-light:checked ~ .page label[for="theme-light"] {
  color: var(--amber);
  background: var(--surface);
}

.theme-input:focus-visible ~ .page .theme-toggle {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ============================================================
   layout
   ============================================================ */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px var(--pad) 0;
}

.brand {
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
  text-decoration: none;
}

.brand:hover { text-decoration: underline; text-underline-offset: 3px; }

.home {
  flex: 1;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad) 72px;
}

/* ============================================================
   intro
   ============================================================ */

.intro { padding: 64px 0 44px; }

.prompt {
  margin: 0 0 10px;
  font-size: 13px;
  color: var(--muted);
}

.prompt-path { color: var(--amber-dim); }

.intro h1 {
  margin: 0 0 14px;
  font-size: clamp(22px, 4.4vw, 32px);
  font-weight: 600;
  letter-spacing: -.01em;
  line-height: 1.25;
}

.cursor {
  display: inline-block;
  width: .6ch;
  height: 1.05em;
  margin-left: 3px;
  vertical-align: -.1em;
  background: var(--amber);
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink { 50% { opacity: 0; } }

.bio {
  max-width: 52ch;
  margin: 0;
  color: var(--muted);
}

/* ============================================================
   menu
   ============================================================ */

.menu-wrap .prompt { margin-bottom: 14px; }

.menu {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}

.row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: baseline;
  gap: 0 16px;
  padding: 16px 14px 16px 10px;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--text);
  transition: background .15s ease, border-color .15s ease;
}

.row:hover {
  background: var(--surface-hover);
  border-bottom-color: var(--amber);
}

.row:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: -2px;
}

.row-num {
  font-size: 13px;
  color: var(--amber-dim);
  transition: color .15s ease;
}

.row:hover .row-num { color: var(--amber); }

.row-body {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 24px;
  flex-wrap: wrap;
}

.row-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.005em;
}

.row:hover .row-title { color: var(--amber); }

.row-desc {
  font-size: 13px;
  color: var(--muted);
}

.row-arrow {
  font-size: 15px;
  color: var(--border-hover);
  transition: color .15s ease, transform .15s ease;
}

.row:hover .row-arrow {
  color: var(--amber);
  transform: translateX(4px);
}

/* ============================================================
   footer
   ============================================================ */

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px var(--pad) 32px;
  border-top: 1px solid var(--border);
  font-size: 12.5px;
  color: var(--muted);
}

.site-footer a {
  color: var(--muted);
  text-decoration: none;
}

.site-footer a:hover { color: var(--amber); }

/* ============================================================
   responsive
   ============================================================ */

@media (max-width: 600px) {
  :root { --pad: 18px; }

  .intro { padding: 44px 0 34px; }

  .row {
    grid-template-columns: auto 1fr;
    padding: 14px 10px 14px 8px;
  }

  .row-arrow { display: none; }

  .row-body { flex-direction: column; gap: 2px; }
}

/* ============================================================
   motion
   ============================================================ */

@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; }
  *, *::before, *::after {
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
  }
}