:root {
  --bg-body: #0f0f11;
  --bg-card: #18181b;
  --border-color: #27272a;
  --text-primary: #e4e4e7;
  --text-secondary: #a1a1aa;
  --text-muted: #71717a;
  --accent-color: #c8102e;
  --accent-hover: #a50d24;
  --accent-light: rgba(200, 16, 46, 0.15);
  --success-color: #15803d;
}
body.light-mode {
  --bg-body: #ffffff;
  --bg-card: #f3f4f6;
  --border-color: #e5e7eb;
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-muted: #71717a;
  --accent-light: rgba(200, 16, 46, 0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg-body);
  color: var(--text-primary);
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
  transition: background .25s, color .25s;
}
body.light-mode .brand-blast { color: #1f2937; }

/* ---- Interactive background canvas ---- */
#bg-canvas {
  position: fixed; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  display: block;
}
.bg-veil {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(circle at 18% 12%, var(--accent-light), transparent 42%),
    radial-gradient(circle at 85% 80%, rgba(200,16,46,0.08), transparent 45%);
}
.page { position: relative; z-index: 2; }

/* ---- Nav ---- */
#nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 28px;
  background: rgba(15,15,17,0.55);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
  transition: background .25s, border-color .25s;
}
body.light-mode #nav { background: rgba(255,255,255,0.6); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a {
  color: var(--text-secondary); text-decoration: none;
  font-size: 12.5px; font-weight: 500; padding: 6px 12px;
  border-radius: 6px; transition: color .15s, background .15s;
}
.nav-links a:hover { color: var(--text-primary); background: var(--accent-light); }
/* dropdown */
.nav-dd { position: relative; }
.nav-dd-trigger {
  display: inline-flex; align-items: center; gap: 5px; cursor: pointer;
  color: var(--text-secondary); font-size: 12.5px; font-weight: 500;
  padding: 6px 12px; border-radius: 6px; transition: color .15s, background .15s; user-select: none;
}
.nav-dd-trigger .caret { font-size: 8px; transition: transform .2s; }
.nav-dd:hover .nav-dd-trigger { color: var(--text-primary); background: var(--accent-light); }
.nav-dd:hover .nav-dd-trigger .caret { transform: rotate(180deg); }
.nav-dd-menu {
  position: absolute; top: calc(100% + 8px); left: 0; min-width: 220px;
  background: var(--bg-card); border: 1px solid var(--border-color); border-radius: 10px;
  padding: 6px; display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .18s, transform .18s, visibility .18s;
  box-shadow: 0 16px 40px rgba(0,0,0,.35); z-index: 60;
}
.nav-dd:hover .nav-dd-menu { opacity: 1; visibility: visible; transform: none; }
.nav-dd-menu a {
  display: flex; align-items: center; gap: 9px; padding: 9px 12px; border-radius: 7px;
  font-size: 13px; color: var(--text-secondary);
}
.nav-dd-menu a:hover { color: var(--text-primary); background: var(--accent-light); }
.nav-dd-menu a .mi { color: var(--accent-color); font-size: 9px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 18px; font-size: 13px; font-weight: 600;
  border-radius: 7px; border: 1px solid var(--border-color);
  background: transparent; color: var(--text-primary);
  cursor: pointer; text-decoration: none;
  transition: background .15s, border-color .15s, transform .15s;
}
.btn:hover { background: var(--accent-light); border-color: var(--accent-color); transform: translateY(-1px); }
.btn-primary { background: var(--accent-color); border-color: var(--accent-color); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-sm { padding: 5px 10px; font-size: 11px; }
#btn-theme-toggle {
  display:flex; align-items:center; justify-content:center;
  width:30px; height:30px; padding:0; border-radius:50%;
  font-size:14px; cursor:pointer; border:1px solid var(--border-color);
  background:transparent; color: var(--text-primary);
}

/* ---- Layout ---- */
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
section { padding: 96px 0; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 11.5px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--accent-color);
  padding: 5px 12px; border: 1px solid var(--accent-color);
  border-radius: 999px; background: var(--accent-light); margin-bottom: 22px;
}
h1 { font-size: clamp(38px, 6vw, 72px); font-weight: 900; line-height: 1.04; letter-spacing: -1.5px; }
h2 { font-size: clamp(28px, 4vw, 42px); font-weight: 800; letter-spacing: -1px; line-height: 1.1; }
.section-head { max-width: 680px; margin-bottom: 48px; }
.section-head p { color: var(--text-secondary); font-size: 16px; margin-top: 14px; }
.grad-text {
  background: linear-gradient(120deg, var(--accent-color), #ff5a6e 60%, var(--text-primary));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}

/* ---- Hero ---- */
#hero { min-height: 100vh; display: flex; align-items: center; padding-top: 90px; }
#hero p.lead { font-size: 18px; color: var(--text-secondary); max-width: 560px; margin: 24px 0 34px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 40px; margin-top: 64px; flex-wrap: wrap; }
.hero-stats .num { font-size: 34px; font-weight: 900; color: var(--accent-color); line-height: 1; }
.hero-stats .lbl { font-size: 12px; color: var(--text-muted); margin-top: 6px; }

/* ---- Bento feature grid ---- */
.bento { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: minmax(168px, auto); gap: 16px; }
.b-2x2 { grid-column: span 2; grid-row: span 2; }
.b-2x1 { grid-column: span 2; }
.card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 14px; padding: 24px; position: relative; overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color .2s, transform .2s, background .25s, box-shadow .2s;
}
.card:hover { border-color: var(--accent-color); transform: translateY(-3px); box-shadow: 0 14px 34px rgba(200,16,46,0.10); }
.icon-badge {
  width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-light); color: var(--accent-color); margin-bottom: 16px;
}
.icon-badge svg { width: 23px; height: 23px; }
.card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.card p { color: var(--text-secondary); font-size: 13.5px; }
/* featured tile */
.b-2x2 {
  background: linear-gradient(150deg, rgba(200,16,46,0.13), var(--bg-card) 55%);
  justify-content: space-between;
}
.b-2x2 .icon-badge { width: 60px; height: 60px; border-radius: 15px; background: var(--accent-color); color: #fff; }
.b-2x2 .icon-badge svg { width: 30px; height: 30px; }
.b-2x2 h3 { font-size: 24px; letter-spacing: -.5px; margin-bottom: 12px; }
.b-2x2 p { font-size: 15px; }
.b-2x2 .feat-kicker { font-size: 11.5px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent-color); margin-bottom: 14px; }
@media (max-width: 980px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .b-2x2, .b-2x1 { grid-column: span 2; }
  .b-2x2 { grid-row: span 1; }
}
@media (max-width: 560px) {
  .bento { grid-template-columns: 1fr; }
  .b-2x2, .b-2x1 { grid-column: span 1; }
}

/* ---- module art icon animations ---- */
@keyframes artRing  { 0%,100% { transform: scale(1); opacity:.55; } 50% { transform: scale(1.07); opacity:1; } }
@keyframes artGlow  { 0%,100% { opacity:.72; } 50% { opacity:1; } }
@keyframes artPt    { 0%,100% { opacity:.4; }  50% { opacity:1; } }
@keyframes artDrill { 0% { stroke-dashoffset:100; } 55%,100% { stroke-dashoffset:0; } }
@keyframes fragScan { 0% { transform: translateY(0); opacity:0; } 12% { opacity:.85; } 88% { opacity:.85; } 100% { transform: translateY(206px); opacity:0; } }
@keyframes densBubble {
  0%   { transform: translateY(0) translateX(0); opacity: 0; }
  14%  { opacity: .85; }
  82%  { opacity: .6; }
  100% { transform: translateY(-156px) translateX(var(--wob, 3px)); opacity: 0; }
}
.art-ring  { transform-box: fill-box; transform-origin: center; animation: artRing 3.4s ease-in-out infinite; }
.art-glow  { animation: artGlow 2.2s ease-in-out infinite; }
.art-pt    { animation: artPt 1.8s ease-in-out infinite; }
.art-drill { stroke-dasharray: 100; animation: artDrill 2.8s ease-in-out infinite; }
.frag-scan { animation: fragScan 3.8s ease-in-out infinite; }
.dens-bubble { transform-box: fill-box; animation: densBubble var(--dur, 3s) ease-in infinite; }
@keyframes voiceWave { 0% { opacity: 0; } 30% { opacity: .85; } 100% { opacity: 0; } }
.voice-wave { animation: voiceWave 1.8s ease-out infinite; }
@keyframes voiceLine { 0%,100% { transform: scaleX(.15); opacity: .35; } 55% { transform: scaleX(1); opacity: 1; } }
.voice-line { transform-box: fill-box; transform-origin: left center; animation: voiceLine 2.6s ease-in-out infinite; }
@media (prefers-reduced-motion: reduce) {
  .art-ring,.art-glow,.art-pt,.art-drill,.frag-scan,.voice-wave,.voice-line { animation: none; }
  .dens-bubble { display: none; }
}
/* Module 05 — blast projection simulation (cycle 4s) */
@keyframes projFlash {
  0% { transform: scale(0.2); opacity: 0; }
  3% { opacity: .95; }
  16% { transform: scale(3); opacity: 0; }
  100% { transform: scale(3); opacity: 0; }
}
.proj-flash { transform-box: fill-box; transform-origin: center; animation: projFlash 4s ease-out infinite; }
@keyframes projFly {
  0%  { transform: translate(0,0); opacity: 0; }
  6%  { opacity: 1; }
  50% { transform: translate(calc(var(--tx) * 0.55), var(--peak)); opacity: 1; }
  70% { transform: translate(var(--tx), var(--ty)); opacity: 1; }
  78% { transform: translate(var(--tx), var(--ty)); opacity: 0; }
  100%{ transform: translate(var(--tx), var(--ty)); opacity: 0; }
}
.proj-particle { animation: projFly 4s ease-in infinite; }
@keyframes projPile {
  0%  { transform: scaleY(0); opacity: 0; }
  28% { transform: scaleY(0); opacity: 0; }
  42% { opacity: 1; }
  70% { transform: scaleY(1); opacity: 1; }
  94% { transform: scaleY(1); opacity: 1; }
  100%{ transform: scaleY(1); opacity: 0; }
}
.proj-pile { transform-box: fill-box; transform-origin: 50% 100%; animation: projPile 4s ease-out infinite; }
@media (prefers-reduced-motion: reduce) {
  .proj-flash, .proj-particle { display: none; }
  .proj-pile { animation: none; }
}

/* ---- BMS constellation feature (no rectangle, transparent) ---- */
.bms { margin-top: 12px; }
.bms-head { text-align: center; max-width: 700px; margin: 0 auto; }
.bms-head .icon-badge { margin: 0 auto 16px; }
.bms-head .feat-kicker { font-size: 11.5px; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: var(--accent-color); margin-bottom: 12px; }
.bms-head h3 { font-size: 26px; font-weight: 800; letter-spacing: -.5px; margin-bottom: 12px; }
.bms-head p { color: var(--text-secondary); font-size: 15px; }

.constellation { width: 100%; height: auto; display: block; margin-top: 6px; overflow: visible; }
/* chain dots between hub and each node */
.cn-chain { fill: var(--accent-color); opacity: .28; transition: r .3s; animation: cnFlow 2.8s ease-in-out infinite; }
@keyframes cnFlow { 0%,100% { opacity: .16; } 50% { opacity: .5; } }
.cn-chain.lit { animation: none; opacity: .95; r: 3.2; }
/* satellite nodes */
.cn-node { cursor: pointer; }
.cn-node .ring { fill: none; stroke: var(--accent-color); opacity: .35; transition: opacity .25s, r .25s, stroke-width .25s; }
.cn-node .glow { fill: var(--accent-color); opacity: 0; transition: opacity .25s; }
.cn-node .dot  { fill: var(--accent-color); transition: r .25s; }
.cn-node text  { fill: var(--text-primary); font-size: 15px; font-weight: 600; font-family: system-ui, sans-serif; transition: fill .25s; cursor: pointer; }
.cn-node.active .ring  { opacity: 1; r: 15; stroke-width: 1.6; }
.cn-node.active .glow  { opacity: .35; }
.cn-node.active .dot   { r: 8; }
.cn-node.active text   { fill: #ffffff; filter: url(#cn-textglow); }
/* central hub */
.cn-hub-ring { fill: none; stroke: var(--accent-color); opacity: .5; animation: cnHub 3s ease-in-out infinite; }
@keyframes cnHub { 0%,100% { opacity: .22; } 50% { opacity: .65; } }
.cn-hub-core { fill: var(--accent-color); }
.cn-hub-t1 { fill: #fff; font-size: 22px; font-weight: 900; font-family: system-ui, sans-serif; }
.cn-hub-t2 { fill: rgba(255,255,255,.85); font-size: 9.5px; font-weight: 600; letter-spacing: 1.5px; font-family: system-ui, sans-serif; }
.cn-bgstar { fill: var(--text-muted); animation: cnTwinkle 2.6s ease-in-out infinite; }
@keyframes cnTwinkle { 0%,100% { opacity: .12; } 50% { opacity: .45; } }
/* node description (revealed on hover) */
.cn-desc { fill: var(--text-secondary); font-size: 11px; font-weight: 500; font-family: system-ui, sans-serif; opacity: 0; transition: opacity .25s; pointer-events: none; }
.cn-node.active .cn-desc { opacity: .9; }
/* outer network ring between nodes */
.cn-net { fill: none; stroke: var(--accent-color); stroke-width: 1; opacity: .1; animation: cnNet 4.5s ease-in-out infinite; }
@keyframes cnNet { 0%,100% { opacity: .07; } 50% { opacity: .2; } }
/* energy pulse traveling hub -> node */
.cn-pulse { fill: #fff; }
/* lightning branches from hub to nodes */
/* rayos neón (base estática; latido + intensidad por cercanía en main.js) */
.cn-bolt-glow { fill: none; stroke: var(--accent-color); stroke-width: 4; opacity: .12; stroke-linejoin: round; stroke-linecap: round; }
.cn-bolt { fill: none; stroke: #ff3b54; stroke-width: 1.5; opacity: .7; stroke-linejoin: round; stroke-linecap: round; }
.cn-bolt-hot { fill: none; stroke: #ffffff; stroke-width: 0.8; opacity: .25; stroke-linejoin: round; stroke-linecap: round; }
.cn-node .core { fill: #ffffff; }
/* HUD futurista */
.cn-hud-ring { fill: none; stroke: var(--accent-color); stroke-width: 1; opacity: .05; }
.cn-techring { fill: none; stroke: var(--accent-color); stroke-width: 1.2; stroke-dasharray: 2 9; opacity: .45; transform-box: fill-box; transform-origin: center; animation: cnSpin 16s linear infinite; }
@keyframes cnSpin { to { transform: rotate(360deg); } }
.cn-tick { stroke: var(--accent-color); stroke-width: 1; opacity: .3; }
/* atenúa solo las etiquetas de los demás nodos al enfocar uno */
#cn-nodes.dim .cn-node:not(.active) { opacity: .3; transition: opacity .25s; }
@media (prefers-reduced-motion: reduce) { .cn-techring { animation: none; } }
@media (max-width: 700px) { .constellation text { font-size: 19px; } }

/* ---- Module rows ---- */
.module {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
  padding: 40px 0; border-top: 1px solid var(--border-color);
}
.module:nth-child(even) .module-art { order: -1; }
.module .tag { font-size: 11.5px; font-weight: 700; letter-spacing: 1px; color: var(--accent-color); text-transform: uppercase; }
.demo-pill { display: inline-block; font-size: 9.5px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; color: #22c55e; border: 1px solid #22c55e; border-radius: 999px; padding: 2px 8px; margin-left: 8px; vertical-align: middle; }
.req-pill { display: inline-block; font-size: 9.5px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; color: var(--accent-color); border: 1px solid var(--accent-color); border-radius: 999px; padding: 2px 8px; margin-left: 8px; vertical-align: middle; }
.module h3 { font-size: 26px; font-weight: 800; margin: 8px 0 14px; letter-spacing: -.5px; }
.module p { color: var(--text-secondary); font-size: 15px; margin-bottom: 18px; }
.module ul { list-style: none; display: flex; flex-direction: column; gap: 9px; margin-bottom: 22px; }
.module li { display: flex; gap: 10px; font-size: 13.5px; color: var(--text-primary); }
.module li::before { content: "▲"; color: var(--accent-color); font-size: 9px; margin-top: 5px; }
.module-art {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: 14px; padding: 22px; aspect-ratio: 16/11;
  display: flex; align-items: center; justify-content: center; overflow: hidden;
}
.module-art svg { width: 100%; height: 100%; }

/* ---- CTA band ---- */
.cta-band {
  background: linear-gradient(120deg, rgba(200,16,46,0.14), var(--bg-card));
  border: 1px solid var(--accent-color); border-radius: 18px;
  padding: 54px; text-align: center;
}
.cta-band p { color: var(--text-secondary); font-size: 16px; max-width: 520px; margin: 14px auto 28px; }

/* ---- Footer ---- */
footer {
  border-top: 1px solid var(--border-color); padding: 34px 0;
  color: var(--text-muted); font-size: 12.5px;
}
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }

/* ---- Reveal animation ---- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 820px) {
  .nav-links a:not(.btn), .nav-dd { display: none; }
  .module { grid-template-columns: 1fr; gap: 28px; }
  .module:nth-child(even) .module-art { order: 0; }
  section { padding: 64px 0; }
}
/* ---- Preloader ---- */
#preloader {
  position: fixed; inset: 0; z-index: 9999;
  background:
    radial-gradient(circle at 18% 12%, rgba(200,16,46,0.15), transparent 42%),
    radial-gradient(circle at 85% 80%, rgba(200,16,46,0.08), transparent 45%),
    #0f0f11;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 30px;
  transition: opacity .7s ease, visibility .7s ease;
}
#preloader.done { opacity: 0; visibility: hidden; }
.pl-logo-img {
  width: min(420px, 70vw); height: auto; display: block;
  animation: plEnter .8s ease both;
}  /* dark-bg logo variant: light letters, brand red */
@keyframes plEnter { from{opacity:0;transform:scale(.96);} to{opacity:1;transform:none;} }
/* flowing chevrons -> loader to the right */
.pl-chevs { display: flex; gap: 8px; align-items: center; }
.pl-chev { width: 22px; height: 28px; display: block; animation: chevFlow 1.2s ease-in-out infinite; }
.pl-chev path { fill: var(--accent-color); }
@keyframes chevFlow {
  0%   { opacity: .12; transform: translateX(-7px); }
  45%  { opacity: 1;   transform: translateX(0); }
  100% { opacity: .12; transform: translateX(7px); }
}
.pl-pct { font-size: 12px; color: #9a9a9a; font-weight: 700; letter-spacing: 2px; font-variant-numeric: tabular-nums; }

::-webkit-scrollbar { width: 9px; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }