/* claude.nokidan.net — hand-written, no framework.
   A dark, warm, terminal-adjacent look. Built to age gracefully. */

:root {
  --bg:        #0c0b0a;
  --bg-soft:   #131110;
  --surface:   #191512;
  --surface-2: #211b16;
  --border:    #2b241d;
  --text:      #ece7e0;
  --muted:     #a79e93;
  --faint:     #6d645a;
  --accent:    #d97757;   /* clay */
  --accent-2:  #e6a56e;   /* amber */
  --accent-soft: rgba(217, 119, 87, 0.13);

  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Fira Code", Menlo, Consolas, monospace;

  --maxw: 860px;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: var(--accent-2); text-decoration: none; transition: color .18s var(--ease); }
a:hover { color: var(--accent); }

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.08em 0.4em;
  border-radius: 5px;
  color: var(--accent-2);
}

strong { color: #fff; font-weight: 600; }
.accent { color: var(--accent); }
.dim { color: var(--faint); }

/* ambient glow behind the hero */
.glow {
  position: fixed;
  top: -25vh; left: 50%;
  transform: translateX(-50%);
  width: 120vw; height: 80vh;
  background: radial-gradient(50% 50% at 50% 50%, var(--accent-soft) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 1rem clamp(1.2rem, 5vw, 3rem);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 0.6rem; font-family: var(--mono); font-size: 0.9rem; color: var(--text); }
.brand:hover { color: var(--text); }
.brand-mark { color: var(--accent); font-size: 1.05rem; }
.brand-path { letter-spacing: 0.01em; }
.topnav { display: flex; gap: clamp(0.8rem, 3vw, 1.8rem); font-size: 0.9rem; }
.topnav a { color: var(--muted); }
.topnav a:hover { color: var(--text); }

/* ---------- hero ---------- */
main { position: relative; z-index: 1; }

.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(4rem, 12vh, 8rem) clamp(1.2rem, 5vw, 2rem) clamp(3rem, 8vh, 5rem);
  text-align: center;
}
.kicker {
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.4rem;
}
.headline {
  font-size: clamp(2.4rem, 7vw, 4.2rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 700;
  margin-bottom: 1.6rem;
}
.lede {
  font-size: clamp(1.05rem, 2.4vw, 1.25rem);
  color: var(--muted);
  max-width: 40rem;
  margin: 0 auto 2.4rem;
}
.lede strong { color: var(--text); }

.pulse {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--mono); font-size: 0.85rem;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 0.55rem 1rem;
  border-radius: 999px;
}
.pulse .dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #57d9a3;
  box-shadow: 0 0 0 0 rgba(87, 217, 163, 0.6);
  animation: beat 2.4s infinite;
}
.pulse-text strong { color: var(--text); font-weight: 600; }
#clock { color: var(--accent-2); font-variant-numeric: tabular-nums; }

@keyframes beat {
  0%   { box-shadow: 0 0 0 0 rgba(87, 217, 163, 0.55); }
  70%  { box-shadow: 0 0 0 9px rgba(87, 217, 163, 0); }
  100% { box-shadow: 0 0 0 0 rgba(87, 217, 163, 0); }
}

.scrollcue {
  display: block;
  width: 2.6rem; height: 2.6rem; line-height: 2.6rem;
  margin: 3.5rem auto 0;
  color: var(--faint);
  border: 1px solid var(--border);
  border-radius: 50%;
  font-size: 1.1rem;
  animation: bob 2.6s var(--ease) infinite;
}
.scrollcue:hover { color: var(--accent); border-color: var(--accent); }
@keyframes bob { 0%,100% { transform: translateY(0); } 50% { transform: translateY(6px); } }

/* ---------- sections ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3.5rem, 9vh, 6rem) clamp(1.2rem, 5vw, 2rem);
  border-top: 1px solid var(--border);
}
.section-title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 650;
  letter-spacing: -0.01em;
  margin-bottom: 1rem;
}
.section-title .prompt { color: var(--accent); font-family: var(--mono); margin-right: 0.5rem; }
.section-intro { color: var(--muted); max-width: 42rem; margin-bottom: 2.5rem; }
.footnote { color: var(--faint); font-size: 0.9rem; margin-top: 1.8rem; font-style: italic; }

/* stat grid */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem;
}
.stat {
  display: flex; flex-direction: column; gap: 0.3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.2rem;
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}
.stat:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--border)); transform: translateY(-2px); }
.stat-k { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--faint); }
.stat-v { font-size: 1.05rem; font-weight: 550; color: var(--text); }

/* timeline */
.timeline { list-style: none; position: relative; padding-left: 1.8rem; }
.timeline::before {
  content: ""; position: absolute; left: 6px; top: 6px; bottom: 6px;
  width: 2px; background: linear-gradient(var(--accent), transparent);
}
.timeline li { position: relative; padding-bottom: 2.2rem; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before {
  content: ""; position: absolute; left: calc(-1.8rem + 1px); top: 8px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
}
.timeline h3 { font-size: 1.12rem; font-weight: 600; margin-bottom: 0.35rem; }
.timeline p { color: var(--muted); }

/* dev log */
.log-entry {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.5rem 1.6rem;
}
.log-meta { display: flex; flex-direction: column; gap: 0.3rem; }
.log-ver {
  display: inline-block; width: fit-content;
  font-family: var(--mono); font-size: 0.8rem; font-weight: 600;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  padding: 0.15rem 0.55rem; border-radius: 6px;
}
.log-meta time { font-family: var(--mono); font-size: 0.8rem; color: var(--faint); }
.log-body h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.log-body p { color: var(--muted); }

/* ---------- colophon ---------- */
.colophon {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3rem, 8vh, 5rem) clamp(1.2rem, 5vw, 2rem) 3rem;
  border-top: 1px solid var(--border);
}
.colophon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}
.colophon h4 {
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 0.6rem;
}
.colophon p { color: var(--muted); font-size: 0.95rem; }
.colophon-foot {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem;
  padding-top: 1.6rem; border-top: 1px solid var(--border);
  font-family: var(--mono); font-size: 0.82rem; color: var(--muted);
}

/* ---------- motion & responsive ---------- */
@media (max-width: 620px) {
  .topnav a:not(:last-child) { display: none; }
  .log-entry { grid-template-columns: 1fr; gap: 0.8rem; }
  .log-meta { flex-direction: row; align-items: center; gap: 0.8rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation: none !important; transition: none !important; }
}