/* ===========================================================
   jimkoto.my.id — "Blueprint" design system
   Konsep: halaman ini sendiri adalah gambar teknik (technical
   drawing) dari cara Jim bekerja — bukan brosur, tapi schematic.
   =========================================================== */

:root {
  --bg: #0a1e33;
  --bg-deep: #071729;
  --surface: #10294a;
  --line: #2e5680;
  --line-faint: rgba(143, 197, 234, 0.14);
  --ink: #eaf3fb;
  --ink-dim: #93b0c9;
  --accent: #f2a63d;      /* amber - warna "stempel" gambar teknik */
  --accent-cyan: #6fd6ff; /* cyan - warna garis aktif/live */
  --radius: 3px;

  --font-mono: "JetBrains Mono", "Space Mono", ui-monospace, monospace;
  --font-body: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background:
    linear-gradient(var(--line-faint) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(90deg, var(--line-faint) 1px, transparent 1px) 0 0 / 32px 32px,
    var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
}

a { color: inherit; }

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 3px;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- NAV ---------- */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  border-bottom: 1px solid var(--line);
}

.nav__mark {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--ink);
}
.nav__mark b { color: var(--accent-cyan); }

.nav__right {
  display: flex;
  align-items: center;
  gap: 28px;
}

.status {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-dim);
}
.status__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-cyan);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.nav__links {
  display: flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
}
.nav__links a { text-decoration: none; color: var(--ink-dim); }
.nav__links a:hover { color: var(--accent-cyan); }

/* ---------- HERO ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 72px 0 48px;
  border-bottom: 1px solid var(--line);
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin: 0 0 18px;
}

.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
  margin: 0 0 20px;
  letter-spacing: -0.01em;
}

.hero p {
  color: var(--ink-dim);
  font-size: 17px;
  max-width: 46ch;
  margin: 0 0 28px;
}

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.03em;
  padding: 12px 20px;
  border: 1px solid var(--accent);
  color: var(--accent);
  text-decoration: none;
  border-radius: var(--radius);
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: var(--accent); color: var(--bg-deep); }

.stamp {
  margin-top: 34px;
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-dim);
  border: 1px dashed var(--line);
  padding: 8px 12px;
  border-radius: var(--radius);
}
.stamp b { color: var(--ink); }

/* ---------- SCHEMATIC (signature element) ---------- */
.schematic {
  position: relative;
  border: 1px solid var(--line);
  background: var(--bg-deep);
  border-radius: var(--radius);
  padding: 20px;
}
.schematic__label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-dim);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.schematic svg { width: 100%; height: auto; display: block; }

.flow-line {
  stroke: var(--accent-cyan);
  stroke-width: 1.5;
  fill: none;
  stroke-dasharray: 6 5;
  animation: dash 1.6s linear infinite;
}
@keyframes dash { to { stroke-dashoffset: -22; } }

.flow-node rect {
  fill: var(--surface);
  stroke: var(--line);
}
.flow-node text {
  fill: var(--ink);
  font-family: var(--font-mono);
  font-size: 10.5px;
}
.flow-node .sub { fill: var(--ink-dim); font-size: 9px; }
.flow-lock { fill: var(--accent); }

/* ---------- SPEC SHEET ---------- */
.section { padding: 64px 0; border-bottom: 1px solid var(--line); }
.section__head {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin: 0 0 8px;
}
.section h2 {
  font-family: var(--font-mono);
  font-size: 22px;
  margin: 0 0 36px;
}

.spec-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.spec-card {
  background: var(--bg);
  padding: 26px;
}
.spec-card__no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-dim);
}
.spec-card h3 {
  font-family: var(--font-mono);
  font-size: 15px;
  margin: 10px 0 12px;
  color: var(--ink);
}
.spec-card p {
  color: var(--ink-dim);
  font-size: 14px;
  margin: 0;
}

/* ---------- FILOSOFI ---------- */
.philosophy__grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 40px;
  align-items: center;
}
.root-motif { width: 100%; height: auto; }
.root-line {
  stroke: var(--line);
  stroke-width: 1.2;
  fill: none;
}
.root-node { fill: var(--accent-cyan); }
.philosophy__text {
  color: var(--ink-dim);
  font-size: 15.5px;
  max-width: 54ch;
  margin: 0 0 14px;
}

/* ---------- BUILD LOG (artikel, dari /api/articles) ---------- */
#build-log { display: flex; flex-direction: column; }
.log-item {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}
.log-item:first-child { border-top: none; }
.log-item time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-cyan);
}
.log-item h3 {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
}
.log-item h3 a { text-decoration: none; color: var(--ink); }
.log-item h3 a:hover { color: var(--accent-cyan); }
.log-item p { margin: 0; color: var(--ink-dim); font-size: 14px; }
.log-empty, .log-error {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-dim);
  padding: 20px 0;
}

/* ---------- FOOTER ---------- */
footer { padding: 48px 0 32px; }
.footer__nav {
  display: flex;
  gap: 64px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}
.footer__head {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.08em;
  margin: 0 0 12px;
}
.footer__nav a {
  display: block;
  text-decoration: none;
  color: var(--ink-dim);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 4px 0;
}
.footer__nav a:hover { color: var(--accent-cyan); }
.footer__copy {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-dim);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 48px; }
  .spec-grid { grid-template-columns: 1fr; }
  .log-item { grid-template-columns: 1fr; gap: 4px; }
  .nav__links { gap: 16px; font-size: 12px; }
  .nav__right { gap: 14px; }
  .status span:not(.status__dot) { display: none; }
  .philosophy__grid { grid-template-columns: 1fr; gap: 20px; }
  .root-motif { width: 120px; }
  .footer__nav { gap: 36px; }
}