/* ============================================================
   Retro ASCII Theme — main.css
   Colors: PALETTE.md tokens only. No raw hex outside :root.
   ============================================================ */

/* ── Design tokens ─────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --bg-deep: #0A0E27;
  --bg-panel: #1B2A4E;
  --border: #2A3A6B;

  /* Brand */
  --blue-primary: #2E5BFF;
  --cyan-accent: #00E5FF;
  --magenta-accent: #FF2E88;
  --yellow-accent: #FFD23F;
  --green-terminal: #39FF14;

  /* Text */
  --text-primary: #E8ECFF;
  --text-muted: #8B95C9;

  /* Semantic */
  --link: var(--cyan-accent);
  --link-hover: var(--magenta-accent);
  --cta-bg: var(--blue-primary);
  --cta-text: var(--text-primary);
  --focus-ring: var(--cyan-accent);
}

/* ── Self-hosted fonts ──────────────────────────────────────── */
@font-face {
  font-family: "VT323";
  src: url("/fonts/VT323.ttf") format("truetype");
  font-display: swap;
  font-weight: 400;
  font-style: normal;
}

@font-face {
  font-family: "Press Start 2P";
  src: url("/fonts/PressStart2P.ttf") format("truetype");
  font-display: swap;
  font-weight: 400;
  font-style: normal;
}

@font-face {
  font-family: "JetBrains Mono";
  src: url("/fonts/JetBrainsMono.woff2") format("woff2");
  font-display: swap;
  font-weight: 400;
  font-style: normal;
}

/* ── Reset / base ───────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 16px;
  line-height: 1.6;
  margin: 0;
  min-height: 100vh;
}

/* ── Layout container ───────────────────────────────────────── */
.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

/* ── Typography ─────────────────────────────────────────────── */
h1 {
  font-family: "Press Start 2P", "JetBrains Mono", ui-monospace, monospace;
  font-size: 28px;
  line-height: 1.4;
  color: var(--text-primary);
  margin-top: 0;
}

h2 {
  font-family: "VT323", "JetBrains Mono", ui-monospace, monospace;
  font-size: 28px;
  color: var(--text-primary);
}

h3, h4 {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 18px;
  font-weight: bold;
  color: var(--text-primary);
}

p {
  font-size: 16px;
  color: var(--text-primary);
}

.muted, time, .meta {
  color: var(--text-muted);
  font-size: 14px;
}

/* ── Links ──────────────────────────────────────────────────── */
a {
  color: var(--link);
  text-decoration: underline;
}

a:hover, a:focus {
  color: var(--link-hover);
}

a:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ── Code blocks ────────────────────────────────────────────── */
pre, code {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  background: var(--bg-panel);
  color: var(--green-terminal);
}

code {
  padding: 0.1em 0.3em;
  border-radius: 2px;
}

pre {
  padding: 1rem;
  overflow-x: auto;
  border: 1px solid var(--border);
}

pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
}

/* ── ASCII banner ───────────────────────────────────────────── */
.ascii-banner pre {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  color: var(--cyan-accent);
  background: transparent;
  border: none;
  line-height: 1.0;
  overflow: hidden;
  padding: 0;
  margin-bottom: 1.5rem;
  white-space: pre;
}

/* ── Section dividers ───────────────────────────────────────── */
hr {
  border: 0;
  color: var(--border);
  text-align: center;
  margin: 2rem 0;
}

hr::before {
  content: "────────────────────────────────────────────────────────────";
  color: var(--border);
  display: block;
  overflow: hidden;
}

.divider {
  color: var(--border);
  text-align: center;
  margin: 2rem 0;
  user-select: none;
}

/* ── Nav ────────────────────────────────────────────────────── */
nav {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

nav a {
  display: inline-block;
  color: var(--text-muted);
  text-decoration: none;
  margin-right: 1rem;
  padding: 0.1em 0.3em;
}

nav a::before { content: "[ "; }
nav a::after  { content: " ]"; }

nav a:hover {
  color: var(--magenta-accent);
}

nav a.active, nav a[aria-current="page"] {
  color: var(--cyan-accent);
}

/* ── Cards ──────────────────────────────────────────────────── */
.card {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 1rem;
  margin-bottom: 1rem;
}

/* ── CTA button ─────────────────────────────────────────────── */
.cta {
  display: inline-block;
  background: var(--cta-bg);
  color: var(--cta-text);
  padding: 0.5rem 1rem;
  text-decoration: none;
  font-family: "JetBrains Mono", ui-monospace, monospace;
}

.cta:hover {
  background: var(--magenta-accent);
  color: var(--cta-text);
}

/* ── Blinking cursor ────────────────────────────────────────── */
.cursor {
  color: var(--cyan-accent);
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

/* ── Footer ─────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  margin-top: 2rem;
  color: var(--text-muted);
  font-size: 14px;
}

/* ── Mobile breakpoint ──────────────────────────────────────── */
@media (max-width: 600px) {
  .container {
    padding: 1rem 0.75rem;
  }

  h1 {
    font-size: 18px;
  }

  h2 {
    font-size: 24px;
  }

  nav a {
    margin-right: 0.5rem;
    font-size: 13px;
  }
}