/* ============================================================================
   FIBERCORE — icy-black glass / fiber-optic core
   ========================================================================== */
:root {
  --bg-0:   #000000;
  --bg-1:   #000000;
  --ice:    #f4f5f7;   /* near-white text */
  --ice-dim:#8b8f96;   /* grey */
  --cyan:   #ffffff;   /* accent = pure white */
  --cyan-d: #3a3c41;   /* grey (scrollbar) */
  --hot:    #ffffff;
  --line:   rgba(255, 255, 255, 0.10);
  --line-s: rgba(255, 255, 255, 0.24);
  --glass:  rgba(16, 16, 18, 0.50);
  --glass-2:rgba(20, 20, 22, 0.62);
  --warn:   #f0a86a;   /* amber — price hike (no blue) */
  --good:   #9fe6c0;   /* mint — price drop */
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
}

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

html, body { height: 100%; }

body {
  background:
    radial-gradient(1100px 720px at 12% -12%, rgba(255, 255, 255, 0.045), transparent 60%),
    #000000;
  color: var(--ice);
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  overflow: hidden;
  position: relative;
}

/* full-screen fiber canvas */
#fiber {
  position: fixed; inset: 0;
  width: 100vw; height: 100vh;
  display: block; z-index: 1;
  pointer-events: none;
}

/* atmosphere */
.grain {
  position: fixed; inset: 0; z-index: 2; pointer-events: none; opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
.vignette {
  position: fixed; inset: 0; z-index: 2; pointer-events: none;
  box-shadow: inset 0 0 240px 40px rgba(0, 0, 0, 0.6);
}

.ui { position: fixed; inset: 0; z-index: 3; pointer-events: none; }
.ui > * { pointer-events: auto; }

/* ---- brand ------------------------------------------------------------- */
.brand { position: absolute; top: 30px; left: 38px; }
.mark {
  font-family: 'Chakra Petch', sans-serif; font-weight: 700;
  font-size: 1.5rem; letter-spacing: 0.42em; color: var(--hot);
  text-shadow: 0 0 22px rgba(255,255,255, 0.45);
}
.mark .glyph { color: var(--cyan); margin-right: 4px; animation: breathe 3.4s ease-in-out infinite; }
.tag {
  margin-top: 6px; font-size: 0.66rem; letter-spacing: 0.34em;
  text-transform: uppercase; color: var(--ice-dim);
}
@keyframes breathe { 0%, 100% { opacity: 0.55; } 50% { opacity: 1; text-shadow: 0 0 16px var(--cyan); } }

/* ---- glass panels ------------------------------------------------------ */
.glass {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 14px;
  backdrop-filter: blur(16px) saturate(120%);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255, 0.08);
}

/* ---- control panel ----------------------------------------------------- */
.panel {
  position: absolute; top: 96px; left: 38px; width: 312px;
  padding: 22px 20px 20px;
  display: flex; flex-direction: column; gap: 15px;
}
.panel-label {
  font-size: 0.62rem; letter-spacing: 0.34em; text-transform: uppercase;
  color: var(--cyan); opacity: 0.85;
}

.types { display: flex; flex-wrap: wrap; gap: 7px; }
.chip {
  font-family: 'Chakra Petch', sans-serif; font-size: 0.7rem; font-weight: 600;
  letter-spacing: 0.08em; color: var(--ice-dim);
  padding: 7px 11px; border: 1px solid var(--line);
  border-radius: 8px; background: rgba(255,255,255, 0.04);
  cursor: pointer; transition: all 0.18s ease; white-space: nowrap;
}
.chip:hover { color: var(--ice); border-color: var(--line-s); background: rgba(255,255,255, 0.09); }
.chip.active {
  color: var(--hot); border-color: rgba(255,255,255, 0.6);
  background: rgba(255,255,255, 0.12);
  box-shadow: 0 0 18px rgba(255,255,255, 0.25), inset 0 0 12px rgba(255,255,255, 0.1);
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field label {
  font-size: 0.62rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ice-dim);
}
.opt-hint { opacity: 0.5; text-transform: none; letter-spacing: 0; }

input, select {
  font-family: 'IBM Plex Mono', monospace; font-size: 0.82rem; color: var(--ice);
  background: rgba(9, 9, 10, 0.75); border: 1px solid var(--line);
  border-radius: 8px; padding: 9px 11px; width: 100%; outline: none;
  transition: border-color 0.18s, box-shadow 0.18s;
}
input::placeholder { color: rgba(150,150,156, 0.45); }
input:focus, select:focus {
  border-color: rgba(255,255,255, 0.55);
  box-shadow: 0 0 0 1px rgba(255,255,255, 0.25), 0 0 18px rgba(255,255,255, 0.15);
}
.select-wrap { position: relative; }
.select-wrap::after {
  content: '▾'; position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  color: var(--cyan); pointer-events: none; font-size: 0.7rem;
}
select { appearance: none; -webkit-appearance: none; cursor: pointer; }
.price-row { display: flex; align-items: center; gap: 8px; }
.price-row .dash { color: var(--ice-dim); }

.scan {
  margin-top: 4px; position: relative; cursor: pointer;
  font-family: 'Chakra Petch', sans-serif; font-weight: 700;
  font-size: 0.84rem; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--hot); padding: 13px 16px; border-radius: 10px;
  border: 1px solid rgba(255,255,255, 0.5);
  background: linear-gradient(180deg, rgba(255,255,255, 0.18), rgba(255,255,255, 0.06));
  box-shadow: 0 0 24px rgba(255,255,255, 0.22), inset 0 0 14px rgba(255,255,255, 0.1);
  transition: transform 0.12s, box-shadow 0.2s, opacity 0.2s;
  overflow: hidden;
}
.scan:hover { box-shadow: 0 0 36px rgba(255,255,255, 0.4), inset 0 0 18px rgba(255,255,255, 0.18); }
.scan:active { transform: translateY(1px); }
.scan[disabled] { cursor: progress; color: var(--cyan); }
.scan .scan-spinner { display: none; }
.scan.busy .scan-text { opacity: 0.5; }
.scan.busy .scan-spinner {
  display: inline-block; position: absolute; right: 16px; top: 50%;
  width: 12px; height: 12px; margin-top: -6px; border-radius: 50%;
  border: 2px solid rgba(255,255,255, 0.25); border-top-color: var(--hot);
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- HUD / loading bar ------------------------------------------------- */
.hud {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%) translateY(16px);
  width: min(620px, calc(100vw - 76px)); padding: 14px 18px;
  opacity: 0; transition: opacity 0.4s ease, transform 0.4s ease;
}
.hud.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.hud-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 9px; }
.hud-state {
  font-family: 'Chakra Petch', sans-serif; font-size: 0.66rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--cyan);
}
.hud-pct { font-size: 0.8rem; color: var(--hot); font-weight: 600; }
.bar {
  height: 4px; border-radius: 4px; overflow: hidden;
  background: rgba(255,255,255, 0.1); border: 1px solid var(--line);
}
.fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, rgba(255,255,255, 0.4), var(--cyan), var(--hot));
  box-shadow: 0 0 14px rgba(255,255,255, 0.6);
  transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}
.snap {
  margin-top: 10px; font-size: 0.74rem; color: var(--ice);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.snap::before { content: '› '; color: var(--cyan); }
.ticker { list-style: none; margin-top: 6px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.hud.show .ticker { max-height: 86px; }
.ticker li {
  font-size: 0.66rem; color: var(--ice-dim); line-height: 1.7;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  animation: tickIn 0.3s ease;
}
@keyframes tickIn { from { opacity: 0; transform: translateX(-6px); } to { opacity: 1; transform: none; } }

/* ---- results ----------------------------------------------------------- */
.results {
  position: absolute; top: 96px; right: 34px; bottom: 30px;
  width: min(380px, 40vw); overflow-y: auto; overflow-x: hidden;
  display: flex; flex-direction: column; gap: 12px;
  padding-right: 6px; scrollbar-width: thin; scrollbar-color: var(--cyan-d) transparent;
}
.results::-webkit-scrollbar { width: 6px; }
.results::-webkit-scrollbar-thumb { background: var(--cyan-d); border-radius: 6px; }

.results-head {
  font-family: 'Chakra Petch', sans-serif; font-size: 0.66rem; letter-spacing: 0.3em;
  text-transform: uppercase; color: var(--cyan); padding: 2px 2px 0;
}

.card {
  background: var(--glass-2);
  border: 1px solid var(--line);
  border-radius: 12px; padding: 14px 15px;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  opacity: 0; transform: translateX(24px);
  animation: cardIn 0.5s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(180deg, var(--cyan), transparent);
  box-shadow: 0 0 12px var(--cyan);
}
@keyframes cardIn { to { opacity: 1; transform: none; } }
.card:hover { border-color: var(--line-s); }

.card-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.card-brand { font-size: 0.6rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--cyan); }
.card-name {
  font-family: 'Chakra Petch', sans-serif; font-weight: 600; font-size: 0.92rem;
  color: var(--hot); margin-top: 3px; line-height: 1.25;
}
.card-price { text-align: right; flex-shrink: 0; }
.price-now { font-family: 'Chakra Petch', sans-serif; font-weight: 700; font-size: 1.18rem; color: var(--hot); }
.delta { font-size: 0.62rem; margin-top: 2px; letter-spacing: 0.04em; }
.delta.up { color: var(--warn); }
.delta.down { color: var(--good); }

.specs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 11px; }
.spec {
  font-size: 0.62rem; color: var(--ice-dim);
  border: 1px solid var(--line); border-radius: 6px; padding: 3px 7px;
  background: rgba(255,255,255, 0.04);
}
.spec b { color: var(--ice); font-weight: 500; }

.card-foot {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 12px; font-size: 0.62rem; color: var(--ice-dim);
}
.src { letter-spacing: 0.06em; }
.src b { color: var(--ice); }
.stock { color: var(--good); }
.stock.low { color: var(--warn); }

.empty {
  font-size: 0.78rem; color: var(--ice-dim); text-align: center;
  padding: 30px 16px; border: 1px dashed var(--line); border-radius: 12px;
}

@media (max-width: 760px) {
  .results { position: absolute; right: 18px; left: 18px; width: auto; top: auto; bottom: 150px; max-height: 40vh; }
  .panel { left: 18px; right: 18px; width: auto; }
}