/* Memory Price Index — bleak, terminal, gallery-grade data journalism */

:root {
  --bg: #09090b;
  --surface: #0d0d10;
  --panel: #13141a;
  --panel-2: #17181f;
  --border: #22242b;
  --text: #dde2ea;
  --muted: #6e7681;
  --cold: #8fa3b8;
  --dram: #a8b9cc;
  --flash: #7fd3ff;
  --module: #c97b38;
  --amber: #c97b38;
  --red: #b34646;
  --green: #5f8a6a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.35;
  -webkit-font-smoothing: antialiased;
}

body { overflow-x: hidden; }

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  background: url('assets/wafer.png') center / cover fixed;
  opacity: .08;
  pointer-events: none;
}

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

/* Atmospheric overlays */
.grain,
.scanlines,
.frost,
.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.grain {
  z-index: 1000;
  background-image: url('assets/grain.png');
  background-size: 256px;
  opacity: .09;
  mix-blend-mode: overlay;
  animation: grainShift .7s steps(12) infinite;
}

.scanlines {
  z-index: 1001;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, .10) 0px,
    rgba(0, 0, 0, .10) 1px,
    transparent 1px,
    transparent 4px
  );
  opacity: .55;
}

.frost {
  z-index: 999;
  background: url('assets/frost.png') no-repeat center / cover;
  opacity: .35;
}

.vignette {
  z-index: 1002;
  background: radial-gradient(circle at center, transparent 30%, rgba(0,0,0,.55) 100%);
}

@keyframes grainShift {
  0%   { transform: translate(0, 0); }
  25%  { transform: translate(-2px, 1px); }
  50%  { transform: translate(1px, -2px); }
  75%  { transform: translate(-1px, 2px); }
  100% { transform: translate(0, 0); }
}

/* Page shell */
main {
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 2.2rem;
}

section { margin: 4.5rem 0; }

h1, h2, h3, h4, p { margin: 0; }

h1 {
  font-size: clamp(2.8rem, 9vw, 7rem);
  font-weight: 650;
  line-height: .9;
  letter-spacing: -0.04em;
  text-transform: uppercase;
}

h2 {
  font-size: clamp(.85rem, 2vw, 1rem);
  font-weight: 500;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-bottom: 1.2rem;
}

h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: .8rem;
}

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace; }
.caps { text-transform: uppercase; letter-spacing: .1em; font-size: .65rem; color: var(--muted); }
.muted { color: var(--muted); }

/* Header */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.2rem;
  margin-bottom: 2rem;
}

.site-title {
  font-size: .75rem;
  letter-spacing: .18em;
  color: var(--muted);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  border: 1px solid var(--border);
  padding: .35rem .8rem;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.status-light {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--module);
  box-shadow: 0 0 10px var(--module);
  animation: pulse 2.4s ease-in-out infinite;
}

.status-light.live { background: var(--green); box-shadow: 0 0 10px var(--green); }
.status-light.gated { background: var(--amber); }
.status-light.error { background: var(--red); box-shadow: 0 0 10px var(--red); }

@keyframes pulse {
  0%, 100% { opacity: .55; }
  50% { opacity: 1; }
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 3rem;
  align-items: end;
  min-height: 70vh;
  padding-top: 3rem;
}

.hero-left { max-width: 760px; }

.hero-eyebrow {
  color: var(--module);
  margin-bottom: 1rem;
  font-size: .72rem;
  letter-spacing: .22em;
}

.hero-title span {
  display: block;
  color: var(--text);
}
.hero-title .dim { color: var(--muted); }

.hero-summary {
  margin-top: 2rem;
  color: var(--muted);
  max-width: 540px;
  font-size: .92rem;
  line-height: 1.55;
}

.hero-stats {
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.hero-number {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 650;
  line-height: 1;
  letter-spacing: -0.03em;
}

.hero-number .unit {
  font-size: .95rem;
  color: var(--muted);
  margin-left: .2rem;
  font-weight: 500;
}

.hero-label {
  color: var(--muted);
  font-size: .66rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  margin-top: .5rem;
}

.hero-right {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-left: 1px solid var(--border);
  padding-left: 2rem;
}

.signal-card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1rem 1.2rem;
}

.signal-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .78rem;
  padding: .25rem 0;
  border-bottom: 1px solid var(--border);
}
.signal-row:last-child { border-bottom: none; }

.signal-key { color: var(--muted); text-transform: uppercase; letter-spacing: .08em; font-size: .62rem; }
.signal-value { font-family: ui-monospace; color: var(--text); }
.signal-value.gated { color: var(--amber); }
.signal-value.ok { color: var(--green); }
.signal-value.fail { color: var(--red); }

/* Ticker */
.ticker {
  overflow: hidden;
  white-space: nowrap;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: .9rem 0;
  color: var(--muted);
  font-family: ui-monospace;
  font-size: .78rem;
}

.ticker-track {
  display: inline-flex;
  gap: 3rem;
  animation: ticker 45s linear infinite;
}

.ticker-track:hover { animation-play-state: paused; }

@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* Controls */
.controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}

.filter-btn,
.action-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: .6rem 1.4rem;
  cursor: pointer;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  transition: all .25s ease;
}

.filter-btn:hover,
.action-btn:hover { border-color: var(--cold); color: var(--cold); }

.filter-btn.active { background: var(--text); color: var(--bg); border-color: var(--text); }
.filter-btn.dram.active { background: var(--dram); color: var(--bg); border-color: var(--dram); }
.filter-btn.flash.active { background: var(--flash); color: var(--bg); border-color: var(--flash); }
.filter-btn.module.active { background: var(--module); color: #0a0a0c; border-color: var(--module); }

.slider-wrap {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1 1 240px;
  min-width: 220px;
  border: 1px solid var(--border);
  padding: .55rem 1rem;
}

.slider-wrap .caps { white-space: nowrap; }

input[type="range"] {
  -webkit-appearance: none;
  flex: 1;
  height: 2px;
  background: var(--border);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--module);
  cursor: pointer;
  transition: transform .1s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.3); }

/* Component grid */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1.2rem;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,.04), transparent 45%);
  opacity: 0;
  transition: opacity .25s;
  pointer-events: none;
}

.card:hover::before, .card.selected::before { opacity: 1; }

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 50px rgba(0,0,0,.38);
}

.card.selected { border-width: 1px; }

.card.dram:hover, .card.dram.selected { border-color: var(--dram); }
.card.flash:hover, .card.flash.selected { border-color: var(--flash); }
.card.module:hover, .card.module.selected { border-color: var(--module); }

.card-tag {
  font-size: .6rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  color: var(--muted);
  margin-bottom: .7rem;
}

.card.dram .card-tag { color: var(--dram); }
.card.flash .card-tag { color: var(--flash); }
.card.module .card-tag { color: var(--module); }

.card-title {
  font-size: .95rem;
  font-weight: 600;
  line-height: 1.25;
  margin-bottom: .35rem;
  min-height: 2.5em;
}

.card-id {
  font-family: ui-monospace;
  font-size: .68rem;
  color: var(--muted);
  margin-bottom: .7rem;
}

.card-meta {
  display: flex;
  gap: .8rem;
  flex-wrap: wrap;
  font-size: .75rem;
  color: var(--muted);
}

.card-meta span { display: inline-flex; gap: .25rem; }

.card-signal {
  margin-top: 1.2rem;
  padding-top: .9rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.card-signal-label {
  font-size: .58rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .1em;
}

.card-signal-value {
  font-family: ui-monospace;
  font-size: 1.15rem;
  color: var(--muted);
}

/* Comparison */
.comparison {
  display: none;
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 1.4rem;
  margin-top: 2rem;
}
.comparison.active { display: block; }

.comparison h3 { margin-bottom: 1rem; }

.compare-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.compare-card {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1.1rem;
  position: relative;
}

.compare-card.dram { border-top: 2px solid var(--dram); }
.compare-card.flash { border-top: 2px solid var(--flash); }
.compare-card.module { border-top: 2px solid var(--module); }

.compare-metric {
  margin-bottom: 1rem;
}

.compare-metric:last-child { margin-bottom: 0; }

.compare-label {
  font-size: .58rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
  margin-bottom: .35rem;
}

.compare-value {
  font-family: ui-monospace;
  font-size: 1.3rem;
  line-height: 1.1;
}

.compare-bar {
  height: 3px;
  background: var(--border);
  margin-top: .45rem;
  overflow: hidden;
}

.compare-bar > div {
  height: 100%;
  width: 0%;
  transition: width .7s ease;
}
.compare-bar.dram > div { background: var(--dram); }
.compare-bar.flash > div { background: var(--flash); }
.compare-bar.module > div { background: var(--module); }

.compare-close {
  position: absolute;
  top: .7rem;
  right: .7rem;
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: .8rem;
}
.compare-close:hover { color: var(--text); }

/* Chart */
.chart {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 1.2rem;
  overflow-x: auto;
}

.chart-svg {
  width: 100%;
  min-width: 640px;
  height: 480px;
  display: block;
}

.chart-bar { transition: all .25s; cursor: pointer; }
.chart-bar:hover { opacity: .85; }

.chart-label {
  font-family: ui-monospace;
  font-size: 10px;
  fill: var(--muted);
}

.chart-axis {
  stroke: var(--border);
  stroke-width: 1;
}

.chart-grid-line {
  stroke: var(--border);
  stroke-width: 1;
  stroke-dasharray: 3 3;
  opacity: .5;
}

.chart-tooltip {
  position: absolute;
  pointer-events: none;
  background: rgba(10, 10, 12, .92);
  border: 1px solid var(--border);
  padding: .6rem .8rem;
  font-size: .72rem;
  color: var(--text);
  transform: translate(-50%, -100%);
  margin-top: -10px;
  opacity: 0;
  transition: opacity .15s;
  z-index: 10;
}

/* Provenance */
.provenance {
  border-top: 1px solid var(--border);
  padding-top: 2.5rem;
}

.provenance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.provenance-grid dl { margin: 0; }
.provenance-grid dt {
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: .1em;
  font-size: .6rem;
  margin-bottom: .4rem;
}
.provenance-grid dd {
  margin: 0;
  color: var(--muted);
  font-size: .78rem;
  line-height: 1.55;
}

/* Footer */
footer {
  margin-top: 6rem;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .72rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Utilities */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Mobile */
@media (max-width: 800px) {
  main { padding: 1.2rem; }
  .hero { grid-template-columns: 1fr; min-height: auto; gap: 2rem; }
  .hero-right { border-left: none; padding-left: 0; border-top: 1px solid var(--border); padding-top: 1.5rem; }
  .hero-stats { gap: 1.5rem; margin-top: 2rem; }
  section { margin: 2.8rem 0; }
  .controls { flex-direction: column; align-items: stretch; }
  .slider-wrap { min-width: 0; }
  .grid { grid-template-columns: 1fr; }
  .chart-svg { height: 360px; min-width: 100%; }
  .compare-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
}