/* ═══════════════════════════════════════════════════════════
   TOMBA — a pourover experience
   the mausoleum, redecorated by the label.
   canvas #0E0F12 · text #F2EFE9 · violet #B07CE8
   Fraunces / Inter / IBM Plex Mono · everything lowercase,
   everything patient, glow like a candle two rooms away.
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg: #0E0F12;
  --panel: #13141a;
  --inset: #0a0b0e;
  --text: #F2EFE9;
  --dim: #8D8778;
  --faint: rgba(242, 239, 233, 0.07);
  --violet: #B07CE8;
  --violet-dim: rgba(176, 124, 232, 0.35);
  --violet-glow: rgba(176, 124, 232, 0.16);
  --display: 'Fraunces', Georgia, serif;
  --body: 'Inter', sans-serif;
  --mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 1.4rem 2rem;
  overflow-x: hidden;
}

/* a faint violet aura, the candle two rooms away */
.aura {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse 70% 38% at 50% -6%, var(--violet-glow), transparent 70%),
    radial-gradient(ellipse 90% 30% at 50% 108%, rgba(176,124,232,0.07), transparent 70%);
}
body > *:not(.aura) { position: relative; z-index: 1; }

a { color: var(--violet); text-decoration: none; }

/* ── masthead ─────────────────────────────────────────── */
.po-presents {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 4px;
  text-transform: lowercase; text-align: center; padding: 1.4rem 0 0;
  color: var(--dim);
}
.po-presents a { opacity: 0.9; }
.po-presents a:hover { opacity: 1; text-shadow: 0 0 14px var(--violet-dim); }

.site-header { text-align: center; margin: 2.6rem 0 2.4rem; }
.title {
  font-family: var(--display); font-weight: 300;
  font-size: clamp(3rem, 10vw, 5.4rem); letter-spacing: 2px; line-height: 1;
  text-shadow: 0 0 34px rgba(242, 239, 233, 0.08);
}
.title em {
  font-style: italic; color: var(--violet);
  text-shadow: 0 0 26px var(--violet-dim);
}
.tagline {
  font-family: var(--display); font-style: italic; color: var(--dim);
  font-size: 1.05rem; margin-top: 0.7rem;
}
.homage {
  font-family: var(--mono); font-size: 0.6rem; letter-spacing: 2px;
  color: var(--dim); margin-top: 0.9rem; text-transform: lowercase; opacity: 0.8;
}

/* ── the gate ─────────────────────────────────────────── */
.gate { width: 100%; display: flex; justify-content: center; margin: 1rem 0 3rem; }
.gate-inner {
  max-width: 560px; text-align: center;
  background: linear-gradient(180deg, var(--panel), var(--bg));
  border: 1px solid var(--faint); border-radius: 4px;
  padding: 2.6rem 2.4rem 2.4rem;
  box-shadow: 0 0 60px rgba(176, 124, 232, 0.06), inset 0 1px 0 rgba(242,239,233,0.03);
}
.gate-copy {
  font-family: var(--display); font-size: 1.06rem; line-height: 1.85;
  color: var(--text); margin-bottom: 1.8rem;
}
.gate-copy em { font-style: italic; color: var(--violet); }
.gate-or { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 3px; color: var(--dim); margin: 1rem 0; }

/* ── buttons ──────────────────────────────────────────── */
.btn {
  font-family: var(--mono); font-size: 0.68rem; letter-spacing: 2px;
  text-transform: lowercase; cursor: pointer; transition: all 0.35s;
  padding: 12px 22px; border-radius: 3px; display: inline-block;
}
.btn.primary {
  background: var(--violet); border: 1px solid var(--violet); color: var(--bg);
  font-weight: 500;
  box-shadow: 0 0 22px var(--violet-dim);
}
.btn.primary:hover { box-shadow: 0 0 34px var(--violet-dim), 0 0 80px var(--violet-glow); }
.btn.ghost {
  background: transparent; border: 1px solid var(--faint); color: var(--text);
}
.btn.ghost:hover {
  border-color: var(--violet-dim); color: var(--violet);
  box-shadow: 0 0 18px var(--violet-glow);
}
.breathe { animation: breathe-glow 6s ease-in-out infinite; }
@keyframes breathe-glow {
  0%, 100% { box-shadow: 0 0 16px var(--violet-dim); }
  50%      { box-shadow: 0 0 38px var(--violet-dim), 0 0 90px var(--violet-glow); }
}
.file-btn { position: relative; }

/* ── the vault canvas ─────────────────────────────────── */
main { width: 100%; max-width: 760px; }
.canvas-wrap {
  width: 100%; height: 300px; margin-bottom: 2.2rem;
  background: var(--inset);
  border: 1px solid var(--faint); border-radius: 4px;
  overflow: hidden; position: relative;
  box-shadow: inset 0 0 60px rgba(0,0,0,0.5), 0 0 44px rgba(176,124,232,0.05);
}
.canvas-wrap::after {
  content: ''; position: absolute; inset: 0; pointer-events: none;
  box-shadow: inset 0 0 90px rgba(176, 124, 232, 0.05);
}
#vault-canvas { width: 100%; height: 100%; display: block; }

/* ── transport ────────────────────────────────────────── */
.transport { margin-bottom: 2.4rem; }
.transport-row {
  display: flex; flex-wrap: wrap; gap: 0.7rem; align-items: center;
  margin-bottom: 1.8rem;
}
.keybind {
  font-family: var(--mono); font-size: 0.55rem; letter-spacing: 1px;
  color: var(--dim); border: 1px solid var(--faint); border-radius: 3px;
  padding: 2px 7px; text-transform: lowercase; opacity: 0.75;
}

.group-label {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 3px;
  text-transform: lowercase; color: var(--violet); margin-bottom: 0.8rem;
}
.loop-note { color: var(--dim); letter-spacing: 1px; margin-left: 8px; }
.drone-row { display: flex; flex-wrap: wrap; gap: 0.7rem; }
.drones { margin-bottom: 1.8rem; }
.help {
  font-size: 0.76rem; color: var(--dim); margin-top: 0.7rem;
}
.help .vio, .vio { color: var(--violet); font-style: normal; }

.status {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 2px;
  color: var(--dim); margin-top: 1.4rem; text-transform: lowercase;
}

/* ── macros ───────────────────────────────────────────── */
.controls {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem 2rem;
  margin-bottom: 3rem;
}
@media (max-width: 620px) { .controls { grid-template-columns: 1fr; } }
.macro {
  background: linear-gradient(180deg, var(--panel), var(--bg));
  border: 1px solid var(--faint); border-radius: 4px;
  padding: 1.1rem 1.2rem 1rem;
  transition: border-color 0.5s, box-shadow 0.5s;
}
.macro:hover { border-color: var(--violet-dim); box-shadow: 0 0 26px var(--violet-glow); }
.breath-macro { border-color: rgba(176,124,232,0.22); }
.macro-head {
  display: flex; align-items: baseline; gap: 0.7rem; margin-bottom: 0.6rem;
}
.macro-head label {
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 3px;
  text-transform: lowercase; color: var(--text);
}
.value {
  margin-left: auto; font-family: var(--mono); font-size: 0.72rem;
  color: var(--violet); text-shadow: 0 0 12px var(--violet-dim);
}
.volume-row { max-width: 380px; }

/* ── sliders: thin track, candle-lit thumb ────────────── */
input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 22px; background: transparent; cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 2px; background: linear-gradient(90deg, var(--violet-dim), var(--faint));
  border-radius: 1px;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 50%; margin-top: -6px;
  background: var(--violet); border: none;
  box-shadow: 0 0 12px var(--violet-dim);
  transition: box-shadow 0.3s;
}
input[type="range"]::-webkit-slider-thumb:hover { box-shadow: 0 0 22px var(--violet); }
input[type="range"]::-moz-range-track {
  height: 2px; background: linear-gradient(90deg, var(--violet-dim), var(--faint));
  border-radius: 1px;
}
input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--violet); border: none;
  box-shadow: 0 0 12px var(--violet-dim);
}

/* ── field notes ──────────────────────────────────────── */
.notes { margin-bottom: 3rem; }
.facts { list-style: none; }
.facts li {
  display: flex; gap: 1.1rem; align-items: baseline;
  font-family: var(--display); font-size: 0.98rem; line-height: 1.8;
  color: var(--dim);
  border-left: 1px solid var(--faint);
  padding: 0.7rem 0 0.7rem 1.2rem; margin-left: 2px;
  transition: color 0.6s, border-color 0.6s;
}
.facts li:hover { color: var(--text); border-left-color: var(--violet-dim); }
.facts li em { font-style: italic; color: var(--violet); }
.facts .n {
  font-family: var(--mono); font-size: 0.62rem; letter-spacing: 1px;
  color: var(--violet); flex-shrink: 0; opacity: 0.8;
}

/* ── footer ───────────────────────────────────────────── */
.site-footer {
  width: 100%; max-width: 760px; text-align: center;
  border-top: 1px solid var(--faint); padding-top: 1.6rem; margin-top: auto;
}
.site-footer p {
  font-family: var(--mono); font-size: 0.58rem; letter-spacing: 2px;
  color: var(--dim); text-transform: lowercase; padding: 2px 0;
}
.credit { opacity: 0.8; }
.po-return { padding: 0.6rem 0 0.4rem !important; }
.po-return a { border-bottom: 1px dotted var(--violet-dim); }
.po-return a:hover { color: var(--violet); text-shadow: 0 0 12px var(--violet-dim); }
.errline {
  color: #e08585; min-height: 1.2em; letter-spacing: 1px;
  font-family: var(--mono); font-size: 0.6rem;
}

/* motion restraint for those who ask for it */
@media (prefers-reduced-motion: reduce) {
  .breathe { animation: none; }
  * { transition: none !important; }
}