:root {
  --bg:           #131313;
  --bg2:          #1a1a1a;
  --bg3:          #212121;
  --border:       #2e2e2e;
  --border-hover: #3d3d3d;
  --text:         #f2f2f2;
  --text2:        #d2d2d2;
  --text3:        #a8a8a8;
  --accent:       #e53e3e;
  --accent-dim:   rgba(229,62,62,0.09);
  --accent-border:rgba(229,62,62,0.35);
  --white:        #ffffff;
  --green:        #4ade80;
  --yellow:       #facc15;
  --blue:         #60a5fa;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; height: 100%; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 17px;
  line-height: 1.75;
  height: 100%;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Red top bar */
body::after {
  content: '';
  position: fixed; top: 0; left: 0; right: 0; height: 2px;
  background: var(--accent);
  z-index: 9998;
}

/* ── LAYOUT ── */
.shell { max-width: 860px; margin: 0 auto; padding: 0 2.5rem; height: 100vh; display: flex; flex-direction: column; overflow: hidden; }

.page-content { animation: fadeIn 0.2s ease both; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── HEADER ── */
header { padding: 1.5rem 0 0; margin-bottom: 1.5rem; }

.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 2rem;
  padding-bottom: 1.5rem; border-bottom: 1px solid var(--border);
}

.site-handle {
  font-size: 1.1rem; color: var(--white); letter-spacing: 0.04em;
  display: flex; align-items: center; gap: 0.65rem;
  text-decoration: none;
}
.site-handle .prompt { color: var(--accent); }

.status-dot {
  display: inline-block; width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  animation: pulse 3s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; }
  50%      { opacity: 0.2; }
}

.header-meta {
  text-align: right; font-size: 0.85rem; color: var(--text3); line-height: 2;
}
.header-meta span   { color: var(--text2); }
.header-meta .online { color: var(--green); }

/* ── NAV ── */
.tabs {
  display: flex; border-bottom: 1px solid var(--border);
  margin-bottom: 1.75rem; overflow-x: auto; scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab-btn {
  font-size: 0.88rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text3); background: none; border: none;
  padding: 0.75rem 1.4rem 0.75rem 0; cursor: pointer; position: relative;
  white-space: nowrap; transition: color 0.15s; text-decoration: none;
  display: inline-block; margin-right: 0.5rem;
}
.tab-btn::after {
  content: ''; position: absolute; bottom: -1px; left: 0; right: 0; height: 2px;
  background: var(--accent); transform: scaleX(0); transition: transform 0.2s ease;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--white); }
.tab-btn.active::after { transform: scaleX(1); }

/* ── SECTION HEADING ── */
.section-label {
  font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--text3); margin-bottom: 1.25rem; padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border); padding: 0.85rem 0 1rem; margin-top: 0;
  display: flex; align-items: center; justify-content: space-between;
  flex-shrink: 0;
}
.fl, .fr { font-size: 0.75rem; color: var(--text3); }
.fl span  { color: var(--text2); }
.footer-links { display: flex; gap: 1.25rem; align-items: center; }
.footer-links a {
  color: var(--text3); text-decoration: none; transition: color 0.15s;
  display: flex; align-items: center;
}
.footer-links a:hover { color: var(--accent); }

/* ── RESPONSIVE ── */
@media (max-width: 640px) {
  .shell { padding: 0 1.25rem; }
  .header-inner { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
  .header-meta  { text-align: left; }
}