/* ─── BackInMyDay docs theme — vintage CRT terminal ─── */

:root {
  --bg:        #0b0f10;
  --bg-soft:   #131a1c;
  --bg-card:   #161e21;
  --fg:        #c8d3d5;
  --fg-dim:    #6f7c80;
  --green:     #50fa7b;
  --cyan:      #8be9fd;
  --yellow:    #f1fa8c;
  --pink:      #ff79c6;
  --red:       #ff5555;
  --purple:    #bd93f9;
  --border:    #1f2c2f;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: 'JetBrains Mono', ui-monospace, 'Fira Code', Consolas, monospace;
  font-size: 16px;
  line-height: 1.6;
  scroll-behavior: smooth;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--green); text-decoration: underline; }
.link { border-bottom: 1px dashed var(--cyan); }

.container { max-width: 980px; margin: 0 auto; padding: 0 1.5rem; }

/* ── CRT scanlines & glow ── */
.scanlines {
  position: fixed; inset: 0; z-index: 100; pointer-events: none;
  background: repeating-linear-gradient(
    180deg,
    rgba(0,0,0,0.0) 0px,
    rgba(0,0,0,0.0) 2px,
    rgba(0,0,0,0.20) 3px,
    rgba(0,0,0,0.0) 4px
  );
  mix-blend-mode: multiply;
}
.crt {
  position: fixed; inset: 0; z-index: 99; pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 60%, rgba(0,0,0,0.5) 100%);
}

/* ── Hero ── */
.hero {
  padding: 4rem 0 3rem;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 30% 0%, rgba(80,250,123,0.08), transparent 60%),
    radial-gradient(ellipse at 70% 100%, rgba(139,233,253,0.06), transparent 60%);
}
.ascii {
  color: var(--cyan);
  font-family: 'VT323', 'JetBrains Mono', monospace;
  font-size: clamp(0.55rem, 1.6vw, 1rem);
  line-height: 1.1;
  margin: 0 0 1.5rem;
  text-shadow: 0 0 8px rgba(139, 233, 253, 0.5);
  overflow-x: auto;
}
.tagline {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
  margin: 0 0 1rem;
  font-weight: 700;
}
.tagline .prompt { color: var(--green); }
.accent { color: var(--pink); }
.lede {
  font-size: 1.05rem;
  color: var(--fg);
  max-width: 70ch;
  margin: 0 0 1.5rem;
}
.lede code { color: var(--yellow); background: var(--bg-soft); padding: 1px 6px; border-radius: 3px; }

.badges { margin: 1rem 0 1.5rem; display: flex; gap: .5rem; flex-wrap: wrap; }
.badges img { height: 28px; }

.cta { display: flex; gap: .8rem; flex-wrap: wrap; }
.btn {
  display: inline-block;
  padding: .65rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--fg);
  background: var(--bg-soft);
  font-weight: 700;
  transition: all .15s;
}
.btn:hover {
  background: var(--bg-card);
  border-color: var(--cyan);
  color: var(--cyan);
  text-decoration: none;
  transform: translateY(-1px);
}
.btn.primary {
  background: var(--green);
  color: var(--bg);
  border-color: var(--green);
}
.btn.primary:hover { background: var(--cyan); border-color: var(--cyan); color: var(--bg); }

/* ── Sections ── */
.section { padding: 3.5rem 0; border-bottom: 1px solid var(--border); }
.section.dark { background: var(--bg-soft); }
h2 {
  font-size: 1.6rem;
  margin: 0 0 1.5rem;
  color: var(--green);
}
h2::before { content: '## '; color: var(--fg-dim); }
h3 { color: var(--cyan); margin: 0 0 .6rem; }
h3 code { background: transparent; color: var(--yellow); }

/* ── Terminal box ── */
.terminal {
  background: #0a0f10;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin: 1rem 0;
  box-shadow: 0 2px 18px rgba(0,0,0,0.5), inset 0 0 60px rgba(80,250,123,0.03);
  overflow: hidden;
  position: relative;
}
.terminal::before {
  content: '● ● ●  ' attr(data-title);
  display: block;
  background: var(--bg-card);
  padding: .4rem .8rem;
  font-size: .8rem;
  color: var(--fg-dim);
  border-bottom: 1px solid var(--border);
  letter-spacing: 2px;
}
.terminal pre {
  margin: 0;
  padding: 1rem 1.2rem;
  font-size: .9rem;
  overflow-x: auto;
  color: var(--fg);
}
.prompt { color: var(--green); font-weight: 700; }
.cmd    { color: var(--cyan); }
.muted  { color: var(--fg-dim); font-style: italic; }
.warn   { color: var(--yellow); }
.ok     { color: var(--green); }
.quip   { color: var(--pink); font-style: italic; }

/* ── Card ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--green);
  border-radius: 4px;
  padding: 1.4rem 1.6rem;
  margin: 1.2rem 0;
}

/* ── Video ── */
.video-frame {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px;
  box-shadow: 0 6px 30px rgba(0,0,0,.5), 0 0 80px rgba(139,233,253,0.05);
}
.video-frame video {
  width: 100%;
  display: block;
  border-radius: 3px;
  background: #000;
}
.caption {
  color: var(--fg-dim);
  font-size: .9rem;
  text-align: center;
  margin-top: .8rem;
}
.caption code { color: var(--yellow); }

/* ── Timeline ── */
.timeline {
  list-style: none;
  padding: 0;
  margin: 0;
  border-left: 2px solid var(--border);
}
.timeline li {
  padding: .8rem 1rem .8rem 1.4rem;
  position: relative;
  border-left: 0;
  margin-left: 0;
}
.timeline li::before {
  content: '';
  position: absolute;
  left: -7px;
  top: 1.2rem;
  width: 12px; height: 12px;
  background: var(--bg);
  border: 2px solid var(--green);
  border-radius: 50%;
}
.timeline .year {
  display: inline-block;
  width: 5rem;
  color: var(--yellow);
  font-weight: 700;
}
.timeline strong { color: var(--cyan); margin-right: .8rem; }
.timeline em { color: var(--fg-dim); font-style: normal; }

/* ── Footer ── */
footer {
  padding: 2rem 0;
  text-align: center;
  color: var(--fg-dim);
  font-size: .9rem;
}

/* ── Language switcher ── */
.lang-switcher {
  position: fixed;
  top: 1rem;
  right: 1.5rem;
  z-index: 200;
  display: flex;
  align-items: center;
  gap: .3rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: .3rem .6rem;
  box-shadow: 0 2px 12px rgba(0,0,0,.5);
}
.lang-btn {
  background: none;
  border: none;
  color: var(--fg-dim);
  font-family: inherit;
  font-size: .85rem;
  font-weight: 700;
  cursor: pointer;
  padding: .15rem .4rem;
  border-radius: 3px;
  transition: all .15s;
}
.lang-btn:hover { color: var(--cyan); }
.lang-btn.active {
  color: var(--bg);
  background: var(--green);
}
.lang-sep { color: var(--fg-dim); font-size: .7rem; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .container { padding: 0 1rem; }
  .timeline .year { display: block; width: auto; margin-bottom: .2rem; }
}