/* =====================================================
   Tokens
===================================================== */
:root {
  --bg: #0B1220;
  --panel: #121A2C;
  --panel-alt: #172038;
  --border: #232E4A;
  --text: #E7ECF5;
  --text-dim: #8B96AD;

  --oltp: #FF7A45;
  --oltp-dim: #4A2C1C;
  --oltp-soft: rgba(255, 122, 69, 0.12);

  --olap: #8C7CF0;
  --olap-dim: #2E2A57;
  --olap-soft: rgba(140, 124, 240, 0.14);

  --good: #3DDC97;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 10px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
  margin: 0;
}

code {
  font-family: var(--font-mono);
  background: var(--panel-alt);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

a { color: inherit; }

/* =====================================================
   Banner de simulación
===================================================== */
.banner-simulacion {
  background: #3A2A0F;
  color: #FFD9A8;
  font-family: var(--font-mono);
  font-size: 13px;
  text-align: center;
  padding: 10px 16px;
  border-bottom: 1px solid var(--oltp);
}

/* =====================================================
   Topbar
===================================================== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}
.brand-vs { color: var(--olap); }
.nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}
.nav a {
  text-decoration: none;
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
  transition: color 0.15s;
}
.nav a:hover { color: var(--text); }
.nav a:focus-visible { outline: 2px solid var(--olap); outline-offset: 3px; }

/* =====================================================
   Layout helpers
===================================================== */
.section {
  max-width: 1180px;
  margin: 0 auto;
  padding: 100px 24px;
}
.section-dark {
  max-width: none;
  background: var(--panel);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.section-dark > * {
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
}
.section-eyebrow {
  font-family: var(--font-mono);
  color: var(--olap);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
.section h2 {
  font-size: clamp(28px, 3.4vw, 40px);
  max-width: 760px;
  margin-bottom: 16px;
}
.section-lead {
  color: var(--text-dim);
  font-size: 17px;
  max-width: 720px;
  margin: 0 0 16px;
}
.h2-oltp { color: var(--oltp); }
.h2-olap { color: var(--olap); }

/* =====================================================
   Hero — signature gauges
===================================================== */
.hero {
  max-width: 1180px;
  margin: 0 auto;
  padding: 90px 24px 70px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin: 0 0 18px;
}
.hero h1 {
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.08;
  margin-bottom: 20px;
}
.hero-sub {
  color: var(--text-dim);
  font-size: 18px;
  max-width: 520px;
  margin-bottom: 28px;
}
.hero-sub strong { color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, border-color 0.15s, background 0.15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible { outline: 2px solid var(--olap); outline-offset: 2px; }
.btn-ghost { border-color: var(--border); }
.btn-ghost:hover { border-color: var(--olap); color: var(--olap); }
.btn-oltp {
  background: var(--oltp);
  border-color: var(--oltp);
  color: #1A0F08;
  width: 100%;
  justify-content: center;
  padding: 14px 22px;
  font-size: 15px;
}
.btn-oltp:hover { filter: brightness(1.08); }

.hero-panels {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}
.gauge {
  flex: 1;
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.gauge-oltp { border-right: 1px solid var(--border); }
.gauge-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.gauge-value {
  font-family: var(--font-mono);
  font-size: clamp(28px, 3vw, 36px);
  font-weight: 600;
}
.gauge-oltp .gauge-value { color: var(--oltp); }
.gauge-olap .gauge-value { color: var(--olap); }
.gauge-caption { font-size: 12.5px; color: var(--text-dim); }
.gauge-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  font-family: var(--font-mono);
  color: var(--text-dim);
  font-size: 12px;
  background: var(--panel-alt);
}

/* =====================================================
   Teoría cards
===================================================== */
.cards-teoria {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 36px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  border-top: 3px solid transparent;
}
.card-oltp { border-top-color: var(--oltp); }
.card-olap { border-top-color: var(--olap); }
.card-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-block;
  margin-bottom: 14px;
}
.card-oltp .card-tag { background: var(--oltp-soft); color: var(--oltp); }
.card-olap .card-tag { background: var(--olap-soft); color: var(--olap); }
.card h3 { font-size: 20px; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 15px; }
.card ul { margin: 14px 0; padding-left: 20px; color: var(--text); font-size: 14.5px; }
.card li { margin-bottom: 6px; }
.card-example {
  font-size: 13.5px;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 16px !important;
}

/* =====================================================
   Diagrama animado
===================================================== */
.diagram { margin-top: 40px; }
.diagram-svg { width: 100%; height: auto; }
.node rect {
  fill: var(--panel-alt);
  stroke-width: 1.5;
}
.node text {
  font-family: var(--font-mono);
  font-size: 13px;
  fill: var(--text);
  text-anchor: middle;
  dominant-baseline: middle;
}
.node-sub { font-size: 10px !important; fill: var(--text-dim) !important; }
.node-oltp rect { stroke: var(--oltp); }
.node-olap rect { stroke: var(--olap); }
.node-etl rect { stroke: #F0C555; }
.node-dw rect { stroke: var(--good); }

.flow-line { stroke: var(--border); stroke-width: 1.5; fill: none; }
.pulse-oltp { fill: var(--oltp); }
.pulse-olap { fill: var(--olap); }

.diagram-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
}
.diagram-label-oltp { color: var(--oltp); }
.diagram-label-olap { color: var(--olap); }

/* =====================================================
   Demo panels
===================================================== */
.demo-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 24px;
  margin-top: 32px;
  align-items: start;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}
.form-panel label {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 14px;
}
.form-panel select,
.form-panel input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 14px;
}
.form-panel select:focus,
.form-panel input:focus {
  outline: none;
  border-color: var(--oltp);
}
.form-panel button { margin-top: 6px; }

.readout {
  border-bottom: 1px solid var(--border);
  padding-bottom: 18px;
  margin-bottom: 16px;
}
.readout-label {
  display: block;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.readout-value {
  font-family: var(--font-mono);
  font-size: 42px;
  font-weight: 600;
}
#oltp-tiempo { color: var(--oltp); }
#olap-tiempo { color: var(--olap); }
.readout-mini {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.readout-mini strong { color: var(--text); font-family: var(--font-mono); }
.readout-hint {
  font-size: 13.5px;
  color: var(--good);
  margin-top: 16px;
  font-family: var(--font-mono);
}

.console-title {
  font-size: 12.5px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 4px 0 10px;
}
.console {
  font-family: var(--font-mono);
  font-size: 13px;
  background: var(--panel-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px;
  min-height: 160px;
  max-height: 260px;
  overflow-y: auto;
}
.console-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 6px 0;
  border-bottom: 1px dashed var(--border);
  color: var(--text-dim);
}
.console-row:last-child { border-bottom: none; }
.console-row span:first-child { color: var(--text); }
.console-empty { color: var(--text-dim); font-size: 13px; }

.olap-controls {
  display: flex;
  gap: 12px;
  margin: 28px 0 8px;
  flex-wrap: wrap;
}
.btn-olap-option {
  border-color: var(--border);
  color: var(--text-dim);
}
.btn-olap-option.is-active,
.btn-olap-option:hover {
  border-color: var(--olap);
  color: var(--olap);
  background: var(--olap-soft);
}

.chart-panel { min-height: 260px; }
.chart { display: flex; flex-direction: column; gap: 12px; }
.chart-row { display: grid; grid-template-columns: 140px 1fr 90px; align-items: center; gap: 12px; }
.chart-row-label { font-size: 13px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chart-bar-track { display: block; background: rgba(255,255,255,0.06); border-radius: 6px; height: 22px; overflow: hidden; }
.chart-bar-fill {
  display: block;
  height: 100%;
  min-width: 3px;
  background: linear-gradient(90deg, var(--olap) 0%, #B4A9FF 100%);
  box-shadow: 0 0 10px rgba(140, 124, 240, 0.5);
  border-radius: 6px;
  width: 0%;
  transition: width 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.chart-row-value { font-family: var(--font-mono); font-size: 13px; text-align: right; color: var(--text); }

/* =====================================================
   Comparativa
===================================================== */
.table-wrap {
  margin-top: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.tabla-comparativa { width: 100%; border-collapse: collapse; font-size: 14.5px; }
.tabla-comparativa th, .tabla-comparativa td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.tabla-comparativa thead th {
  background: var(--panel);
  font-family: var(--font-mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}
.th-oltp { color: var(--oltp) !important; }
.th-olap { color: var(--olap) !important; }
.tabla-comparativa tbody tr:nth-child(even) { background: rgba(255,255,255,0.02); }
.tabla-comparativa tbody tr:last-child td { border-bottom: none; }

/* =====================================================
   Footer
===================================================== */
.footer {
  text-align: center;
  padding: 40px 24px 60px;
  color: var(--text-dim);
  font-size: 13px;
}

/* =====================================================
   Responsive
===================================================== */
@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; padding-top: 56px; }
  .cards-teoria { grid-template-columns: 1fr; }
  .demo-grid { grid-template-columns: 1fr; }
  .nav { display: none; }
  .chart-row { grid-template-columns: 100px 1fr 70px; }
}