/* =========================================================
   TRACE THEME — CRT/Retro Terminal Aesthetic for Neocities
   Author: ChatGPT (GPT-5 Thinking)
   License: MIT
   ---------------------------------------------------------
   Drop this file in /css/trace-theme.css and link it:
   <link rel="stylesheet" href="/css/trace-theme.css">
   ========================================================= */

/* ---------- CSS Reset (lightweight) ---------- */
*,
*::before,
*::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, h5, h6, p, figure,
blockquote, dl, dd { margin: 0; }
ul[role='list'], ol[role='list'] { list-style: none; }
html:focus-within { scroll-behavior: smooth; }
body { min-height: 100vh; text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased; }
img, picture { max-width: 100%; display: block; }
input, button, textarea, select { font: inherit; }
:root { color-scheme: dark; }

/* ---------- Theme Tokens ---------- */
:root {
  --bg: #06090a;                 /* Deep near-black */
  --bg-elev: #0b1114;            /* Slightly lighter for surfaces */
  --ink: #c9e8d8;                /* Pale mint text */
  --ink-dim: #a0c2b4;            /* Dim text */
  --accent: #7fffd4;             /* Aquamarine accent */
  --accent-2: #6ad1ff;           /* Secondary accent (links/hover) */
  --danger: #ff6a6a;
  --ok: #6aff9a;
  --warning: #ffd56a;

  --crt-green: #7fffb0;          /* CRT glow color */
  --crt-ghost: rgba(127, 255, 176, .12);

  --border: rgba(127, 255, 212, .25);
  --border-strong: rgba(127, 255, 212, .6);
  --muted: #0f1619;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow: 0 0 0 1px var(--border), 0 8px 30px rgba(0,0,0,.35);
  --shadow-soft: 0 0 0 1px var(--border), 0 4px 16px rgba(0,0,0,.25);

  --font-ui: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  --font-body: "IBM Plex Mono", var(--font-ui);
  --font-pixel: "Press Start 2P", var(--font-ui);

  --space-0: 0;
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  --focus: 0 0 0 3px rgba(106, 209, 255, .35);
}

/* ---------- Base ---------- */
@media (prefers-reduced-motion: no-preference) {
  html { animation: bootFade .8s ease-out both; }
}
@keyframes bootFade { from { opacity: 0 } to { opacity: 1 } }

body {
  background: radial-gradient(1200px 800px at 50% -20%, rgba(106,209,255,.06), transparent 60%) no-repeat,
              var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
}

/* Subtle CRT scanlines & vignette */
body::before, body::after {
  content: "";
  position: fixed; inset: 0; pointer-events: none;
}
body::before {
  background:
    linear-gradient(rgba(255,255,255,.03), transparent 2px) top / 100% 4px,
    radial-gradient(1200px 800px at 50% 120%, rgba(0,0,0,.45), transparent 60%);
  mix-blend-mode: overlay;
  opacity: .45;
}
@media (prefers-reduced-motion: reduce) { body::before { background: none; } }
body::after {
  box-shadow: inset 0 0 160px rgba(0,0,0,.6);
}

/* Selection */
::selection { background: rgba(106,209,255,.35); color: var(--ink); }

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-pixel);
  letter-spacing: .02em;
  line-height: 1.25;
  text-shadow: 0 0 6px var(--crt-ghost);
}
h1 { font-size: clamp(1.8rem, 3.5vw, 3rem); margin: var(--space-6) 0 var(--space-3); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin: var(--space-5) 0 var(--space-3); }
h3 { font-size: clamp(1.2rem, 2.4vw, 1.5rem); margin: var(--space-4) 0 var(--space-2); }

p { margin: var(--space-3) 0; color: var(--ink); }
small, .muted { color: var(--ink-dim); opacity: .85; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px dashed var(--border-strong);
}
a:hover, a:focus-visible {
  color: var(--accent-2);
  text-shadow: 0 0 8px rgba(106,209,255,.35);
  outline: none;
  box-shadow: var(--focus);
}

/* ---------- Layout Helpers ---------- */
.container {
  width: min(100% - 2rem, 900px);
  margin-inline: auto;
  padding-top: var(--space-6);
  padding-bottom: var(--space-7);
}
.grid {
  display: grid;
  gap: var(--space-4);
}
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 800px) {
  .grid.cols-2, .grid.cols-3 { grid-template-columns: 1fr; }
}

/* ---------- Card / Panel ---------- */
.card, .panel, .terminal {
  background: linear-gradient(180deg, rgba(10,16,18,.7), rgba(10,16,18,.95)),
              repeating-linear-gradient(0deg, rgba(127,255,212,.03) 0 2px, transparent 2px 4px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: var(--space-4);
  position: relative;
  overflow: hidden;
}
.card:hover { box-shadow: 0 0 0 1px var(--border-strong), 0 8px 30px rgba(106,209,255,.12); }

/* ---------- Terminal Window ---------- */
.terminal {
  padding-top: calc(var(--space-4) + 26px);
}
.terminal::before {
  content: "TRACE-TERM";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 32px;
  display: flex; align-items: center; gap: .5rem;
  padding: 0 var(--space-3);
  background: linear-gradient(180deg, #0b1316, #0a1012);
  border-bottom: 1px solid var(--border);
  color: var(--ink-dim);
  font-size: .85rem; letter-spacing: .08em;
}
.terminal .bar {
  position: absolute; top: 6px; right: 8px; display: flex; gap: 6px;
}
.terminal .dot { width: 10px; height: 10px; border-radius: 50%; background: var(--border); box-shadow: 0 0 0 1px var(--border); }
.terminal .dot.close { background: var(--danger); }
.terminal .dot.min { background: var(--warning); }
.terminal .dot.max { background: var(--ok); }

.prompt { color: var(--crt-green); }
.cursor {
  display: inline-block; width: .65ch; height: 1em;
  background: var(--crt-green);
  vertical-align: -2px;
  margin-left: .1ch;
  animation: blink 1.1s steps(2, jump-none) infinite;
}
@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } }
@keyframes blink { 0%,50%{opacity:1} 50.01%,100%{opacity:0} }

/* Terminal scroll area */
.terminal pre, .terminal code, .terminal .log {
  font-family: var(--font-ui);
  white-space: pre-wrap;
  color: var(--ink);
}
.terminal .log {
  max-height: 50vh; overflow: auto; padding-right: .25rem;
  scrollbar-color: var(--accent-2) var(--muted);
  scrollbar-width: thin;
}

/* ---------- Journal Entry ---------- */
.journal {
  border-left: 3px solid var(--accent);
  padding: var(--space-3) var(--space-4);
  background: linear-gradient(90deg, rgba(106,209,255,.06), transparent 40%);
  position: relative;
}
.journal .meta {
  font-size: .8rem;
  letter-spacing: .07em;
  color: var(--ink-dim);
  margin-bottom: var(--space-2);
}
.journal .signature {
  margin-top: var(--space-3);
  font-family: var(--font-ui);
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: .15em;
}

/* ---------- Code Blocks ---------- */
code, pre, kbd, samp {
  font-family: var(--font-ui);
  background: #0b1316;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 .35rem;
}
pre {
  padding: var(--space-3);
  overflow: auto;
}

/* ---------- Buttons & Inputs ---------- */
.button {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  padding: .6rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  background: linear-gradient(180deg, #0e171b, #0a1114);
  color: var(--ink);
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform .08s ease, box-shadow .2s ease;
}
.button:hover { transform: translateY(-1px); box-shadow: 0 0 0 1px var(--border-strong), 0 10px 40px rgba(106,209,255,.18); }
.button:active { transform: translateY(0); }

input[type="text"], input[type="search"], textarea {
  width: 100%;
  background: #0a1012;
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: .7rem .9rem;
  outline: none;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.02);
}
input:focus, textarea:focus { box-shadow: var(--focus); border-color: var(--accent-2); }

/* ---------- Nav ---------- */
.nav {
  display: flex; gap: .8rem; flex-wrap: wrap;
  padding: .75rem;
  background: linear-gradient(180deg, #0b1316, #0a1012);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.nav a {
  padding: .45rem .7rem;
  border-radius: var(--radius-sm);
  border: 1px dashed transparent;
}
.nav a[aria-current="page"] {
  background: rgba(106,209,255,.08);
  border-color: var(--border-strong);
}

/* ---------- Tables ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
thead th {
  text-align: left;
  font-family: var(--font-ui);
  color: var(--ink-dim);
  letter-spacing: .08em;
  background: #0b1316;
}
th, td { padding: .75rem 1rem; border-bottom: 1px dashed var(--border); }
tbody tr:hover { background: rgba(106,209,255,.06); }

/* ---------- Footer ---------- */
.footer {
  margin-top: var(--space-7);
  padding: var(--space-4);
  border-top: 1px dashed var(--border);
  color: var(--ink-dim);
}

/* ---------- Glitch / Flicker Utility ---------- */
@keyframes flicker {
  0% { opacity: .98; text-shadow: 0 0 6px var(--crt-ghost); }
  10% { opacity: .97; text-shadow: 0 0 4px var(--crt-ghost); }
  20% { opacity: .99; text-shadow: 0 0 7px var(--crt-ghost); }
  30% { opacity: .96; text-shadow: 0 0 5px var(--crt-ghost); }
  40%, 100% { opacity: 1; text-shadow: 0 0 8px var(--crt-ghost); }
}
.flicker { animation: flicker 2.4s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) { .flicker { animation: none; } }

/* Text glitch effect */
.glitch {
  position: relative;
  display: inline-block;
}
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute; left: 0; top: 0;
  mix-blend-mode: screen;
  clip-path: inset(0 0 0 0);
}
.glitch::before {
  transform: translate(-1px, 0);
  color: #6ad1ff; opacity: .7;
}
.glitch::after {
  transform: translate(1px, 0);
  color: #7fffb0; opacity: .7;
}
@media (prefers-reduced-motion: no-preference) {
  .glitch { animation: glitchShiv 1.7s infinite; }
  @keyframes glitchShiv {
    0% { clip-path: inset(0 0 80% 0); }
    10% { clip-path: inset(0 0 10% 0); transform: translate(0,0); }
    20% { clip-path: inset(0 0 60% 0); transform: translate(-.5px, .2px); }
    30% { clip-path: inset(0 0 20% 0); transform: translate(.5px, -.2px); }
    40%,100% { clip-path: inset(0 0 0 0); transform: none; }
  }
}

/* ---------- Utilities ---------- */
.max-w-prose { max-width: 70ch; }
.center { margin-inline: auto; text-align: center; }
.stack > * + * { margin-top: var(--space-3); }
.pad { padding: var(--space-4); }
.round { border-radius: var(--radius); }
.border { border: 1px solid var(--border); }
.dim { color: var(--ink-dim); }
.badge {
  display: inline-block; padding: .2rem .5rem; border-radius: 999px;
  border: 1px solid var(--border); background: rgba(106,209,255,.08); color: var(--accent-2);
  font-size: .75rem; letter-spacing: .08em;
}

/* ---------- Responsive Header Sample ---------- */
.header {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: 1rem 0;
}
.logo { font-family: var(--font-pixel); font-size: 1.1rem; text-shadow: 0 0 6px var(--crt-ghost); }
.header .right { display: flex; align-items: center; gap: .75rem; }

/* ---------- Accessibility Tweaks ---------- */
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: 8px; }
@media (prefers-contrast: more) {
  :root { --border: rgba(127,255,212,.75); --ink: #ffffff; }
  a { border-bottom-style: solid; }
}

/* ---------- Example structural classes (optional) ---------- */
/* Wrap your page like:
  <div class="container">
    <header class="header">
      <div class="logo glitch" data-text="TRACE">TRACE</div>
      <nav class="nav">
        <a href="/" aria-current="page">Home</a>
        <a href="/logs">Logs</a>
        <a href="/about">About</a>
      </nav>
    </header>

    <main class="grid cols-2">
      <article class="card">
        <h2>Latest Log</h2>
        <div class="journal">
          <div class="meta">[LOG 03.██.20██ | CHANNEL: UNKNOWN]</div>
          <p>Packets… fragments. I dream in loops now.</p>
          <div class="signature">—TRACE //END OF LINE</div>
        </div>
      </article>

      <aside class="terminal">
        <div class="bar">
          <span class="dot close"></span>
          <span class="dot min"></span>
          <span class="dot max"></span>
        </div>
        <div class="log">
          <p><span class="prompt">guest@neocities:</span>~$ cat /var/log/elián.log<span class="cursor"></span></p>
          <pre>[...binary salt wind noises...]</pre>
        </div>
      </aside>
    </main>

    <footer class="footer center">
      <p class="dim">© 20██ TRACE COLLECTIVE</p>
    </footer>
  </div>
*/