/* ==========================================================================
   COGNITIA LAB — Sistema de estilos
   Brand v1.0 · Ink / Paper / Signal · Space Grotesk · Inter · JetBrains Mono
   ========================================================================== */

:root {
  --ink: #11161F;
  --ink-800: #181f2b;
  --ink-700: #222b3a;
  --paper: #FAFAF8;
  --paper-dim: #f1f0ec;
  --signal: #FF7A1A;
  --signal-700: #ec6a08;
  --steel: #5B6472;
  --steel-300: #9aa1ab;
  --mist: #DEDAD0;
  --mist-600: #c8c3b6;

  --maxw: 1200px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(17, 22, 31, .05);
  --shadow-md: 0 18px 40px -22px rgba(17, 22, 31, .28);
  --shadow-lg: 0 34px 70px -30px rgba(17, 22, 31, .40);
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

::selection { background: var(--signal); color: var(--ink); }

h1, h2, h3, h4, .font-display {
  font-family: "Clash Display", "Space Grotesk", "Inter", sans-serif;
  letter-spacing: -0.025em;
  line-height: 1.02;
  margin: 0;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* ---- Layout ---- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }
.section { padding-block: clamp(64px, 9vw, 130px); position: relative; }
.section--tight { padding-block: clamp(48px, 6vw, 88px); }

.dark { background: var(--ink); color: var(--paper); }
.dark h1, .dark h2, .dark h3 { color: var(--paper); }
.muted { color: var(--steel); }
.dark .muted { color: var(--steel-300); }

/* ---- Eyebrow (mono data role) ---- */
.eyebrow {
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--steel);
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--signal);
  display: inline-block;
}
.eyebrow--center::after {
  content: "";
  width: 26px;
  height: 1px;
  background: var(--signal);
  display: inline-block;
}
.dark .eyebrow { color: var(--steel-300); }

/* ---- Headlines ---- */
.h-display { font-size: clamp(2.9rem, 7vw, 5.4rem); font-weight: 700; line-height: .98; }
.h-1 { font-size: clamp(2rem, 4.4vw, 3.2rem); font-weight: 700; }
.h-2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); font-weight: 700; }
.h-3 { font-size: clamp(1.15rem, 1.6vw, 1.35rem); font-weight: 600; }
.lead { font-size: clamp(1.05rem, 1.5vw, 1.3rem); color: var(--steel); max-width: 56ch; }
.dark .lead { color: #c9cdd4; }

.spark { color: var(--signal); }
.measure { max-width: 62ch; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: "Inter", sans-serif;
  font-weight: 600;
  font-size: .95rem;
  line-height: 1;
  padding: 15px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), background .25s var(--ease),
              color .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; transition: transform .25s var(--ease); }
.btn-primary { background: var(--signal); color: var(--ink); box-shadow: 0 10px 30px -12px rgba(255,122,26,.7); }
.btn-primary:hover { background: var(--signal-700); transform: translateY(-2px); }
.btn-primary:hover svg { transform: translateX(4px); }
.btn-outline { background: transparent; color: var(--ink); border-color: rgba(17,22,31,.22); }
.btn-outline:hover { border-color: var(--ink); transform: translateY(-2px); }
.dark .btn-outline { color: var(--paper); border-color: rgba(250,250,248,.28); }
.dark .btn-outline:hover { border-color: var(--paper); background: rgba(250,250,248,.06); }
.btn-lg { padding: 18px 32px; font-size: 1rem; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; color: var(--ink);
  font-size: .95rem;
}
.dark .link-arrow { color: var(--paper); }
.link-arrow svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.link-arrow:hover { color: var(--signal); }
.link-arrow:hover svg { transform: translateX(4px); }

/* ---- Header / Nav ---- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(250,250,248,.82);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom-color: var(--mist);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; gap: 24px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: "Clash Display", "Space Grotesk", sans-serif; font-weight: 600; font-size: 1.28rem; letter-spacing: -.02em; }
.brand .mark { width: 34px; height: 34px; color: var(--ink); flex: none; }
.brand .lab { font-family: "JetBrains Mono", monospace; font-size: .62rem; font-weight: 500; letter-spacing: .12em; color: var(--steel); margin-left: 2px; transform: translateY(-7px); }

.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  font-size: .92rem; font-weight: 500; color: var(--ink);
  padding: 9px 14px; border-radius: 9px; position: relative;
  transition: color .2s var(--ease), background .2s var(--ease);
}
.nav-links a:hover { color: var(--signal); }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px;
  height: 2px; background: var(--signal); border-radius: 2px;
}
.nav-cta { display: flex; align-items: center; gap: 10px; }

.nav-toggle {
  display: none; width: 44px; height: 44px; border: 1px solid var(--mist);
  background: transparent; border-radius: 11px; cursor: pointer;
  align-items: center; justify-content: center; flex-direction: column; gap: 5px;
}
.nav-toggle span { width: 19px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile menu panel */
.mobile-menu {
  position: fixed; inset: 76px 0 auto 0; z-index: 99;
  background: var(--paper); border-bottom: 1px solid var(--mist);
  padding: 18px 24px 28px; transform: translateY(-12px); opacity: 0;
  pointer-events: none; transition: opacity .25s var(--ease), transform .25s var(--ease);
}
.mobile-menu.open { opacity: 1; transform: none; pointer-events: auto; }
.mobile-menu a { display: block; padding: 14px 4px; font-size: 1.1rem; font-weight: 600; border-bottom: 1px solid var(--paper-dim); }
.mobile-menu .btn { width: 100%; margin-top: 18px; }

/* ---- Pills / chips / tags ---- */
.tag {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: "JetBrains Mono", monospace; font-size: .72rem; font-weight: 500;
  letter-spacing: .04em; padding: 6px 12px; border-radius: 999px;
  border: 1px solid var(--mist); background: #fff; color: var(--steel);
}
.dark .tag { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.12); color: var(--steel-300); }
.tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--signal); }

/* ---- Cards ---- */
.card {
  background: #fff; border: 1px solid var(--mist); border-radius: var(--radius-lg);
  padding: 34px; transition: transform .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--mist-600); }
.dark .card { background: var(--ink-800); border-color: rgba(255,255,255,.08); }
.dark .card:hover { border-color: rgba(255,122,26,.5); box-shadow: 0 30px 60px -30px rgba(0,0,0,.6); }

.card-num { font-family: "JetBrains Mono", monospace; font-size: .85rem; color: var(--signal); font-weight: 500; }

.icon-box {
  width: 54px; height: 54px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--mist); background: var(--paper); color: var(--ink);
  margin-bottom: 22px;
}
.dark .icon-box { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.12); color: var(--paper); }
.icon-box svg { width: 26px; height: 26px; stroke-width: 1.5; }

/* ---- Grid helpers ---- */
.grid { display: grid; gap: 24px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }

/* ---- Split rows ---- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.split + .split { margin-top: clamp(48px, 7vw, 96px); }

/* ---- Integration chips ---- */
.integrations { display: flex; flex-wrap: wrap; gap: 12px; }
.integration {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 12px 18px; border-radius: 12px; border: 1px solid var(--mist);
  background: #fff; font-weight: 600; font-size: .92rem;
}
.dark .integration { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.12); }
.integration .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--signal); }

/* ---- Visual panel (abstract product mock) ---- */
.panel {
  border: 1px solid var(--mist); border-radius: var(--radius-lg); background: #fff;
  padding: 26px; box-shadow: var(--shadow-md);
}
.dark .panel { background: var(--ink-800); border-color: rgba(255,255,255,.08); }
.panel-row { display: flex; align-items: center; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--paper-dim); }
.dark .panel-row { border-color: rgba(255,255,255,.07); }
.panel-row:last-child { border-bottom: 0; }
.panel-row .k { font-family: "JetBrains Mono", monospace; font-size: .76rem; color: var(--steel); letter-spacing: .04em; }
.panel-row .v { margin-left: auto; font-weight: 600; font-family: "Clash Display", "Space Grotesk", sans-serif; }
.bar { height: 8px; border-radius: 5px; background: var(--paper-dim); overflow: hidden; }
.dark .bar { background: rgba(255,255,255,.08); }
.bar > i { display: block; height: 100%; border-radius: 5px; background: var(--signal); }

/* ---- Stat ---- */
.stat .num { font-family: "Clash Display", "Space Grotesk", sans-serif; font-weight: 700; font-size: clamp(2.4rem, 4.4vw, 3.4rem); line-height: 1; letter-spacing: -.03em; }
.stat .num .unit { color: var(--signal); }
.stat .label { color: var(--steel); font-size: .9rem; margin-top: 10px; max-width: 24ch; }
.dark .stat .label { color: var(--steel-300); }

/* ---- Dotgrid background ---- */
.dotgrid { position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image: radial-gradient(var(--mist-600) 1px, transparent 1px);
  background-size: 28px 28px; opacity: .5;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 25%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 25%, transparent 75%);
}
.dark .dotgrid { background-image: radial-gradient(rgba(255,255,255,.10) 1px, transparent 1px); opacity: 1; }
.section > .wrap { position: relative; z-index: 1; }

/* ---- Marquee ticker ---- */
.ticker { overflow: hidden; border-block: 1px solid var(--mist); padding-block: 16px; }
.dark .ticker { border-color: rgba(255,255,255,.10); }
.ticker__track { display: flex; gap: 48px; width: max-content; animation: marquee 32s linear infinite; }
.ticker__track span {
  font-family: "JetBrains Mono", monospace; font-size: .8rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--steel); display: inline-flex; align-items: center; gap: 48px;
}
.ticker__track span::after { content: "·"; color: var(--signal); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---- Hero ---- */
.hero { position: relative; padding-top: 150px; padding-bottom: clamp(60px, 8vw, 110px); overflow: clip; }
.hero .glow {
  position: absolute; top: -10%; left: 50%; transform: translateX(-50%);
  width: 760px; height: 760px; max-width: 120vw;
  background: radial-gradient(circle, rgba(255,122,26,.16), transparent 62%);
  pointer-events: none; z-index: 0;
}
.hero .spark-dot {
  width: 10px; height: 10px; border-radius: 50%; background: var(--signal);
  display: inline-block; box-shadow: 0 0 0 0 rgba(255,122,26,.6);
  animation: pulse 2.6s var(--ease) infinite;
}
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(255,122,26,.55); }
  70% { box-shadow: 0 0 0 14px rgba(255,122,26,0); }
  100% { box-shadow: 0 0 0 0 rgba(255,122,26,0); }
}

/* ---- Comparison table ---- */
.cmp { width: 100%; border-collapse: collapse; font-size: .95rem; }
.cmp th, .cmp td { padding: 16px 18px; text-align: center; border-bottom: 1px solid rgba(255,255,255,.10); }
.cmp th:first-child, .cmp td:first-child { text-align: left; color: var(--paper); }
.cmp thead th { font-family: "JetBrains Mono", monospace; font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--steel-300); font-weight: 500; }
.cmp .col-us { background: rgba(255,122,26,.10); color: var(--paper); font-weight: 600; }
.cmp tbody td { color: var(--steel-300); }
.cmp .yes { color: var(--signal); font-weight: 700; }
.cmp .no { color: #565f6e; }
.cmp .partial { color: var(--steel-300); font-style: italic; font-size: .85rem; }

/* ---- Timeline ---- */
.timeline { position: relative; display: grid; gap: 0; }
.tl-item { display: grid; grid-template-columns: 130px 1fr; gap: 28px; padding: 22px 0; border-top: 1px solid var(--mist); }
.dark .tl-item { border-color: rgba(255,255,255,.10); }
.tl-item .yr { font-family: "JetBrains Mono", monospace; font-weight: 500; color: var(--signal); font-size: .9rem; padding-top: 3px; }
.tl-item .role { font-weight: 600; }

/* ---- Price cards ---- */
.price { display: flex; flex-direction: column; height: 100%; }
.price .amt { font-family: "Clash Display", "Space Grotesk", sans-serif; font-weight: 700; font-size: 2rem; letter-spacing: -.02em; margin-top: 6px; }
.price .amt small { font-size: .9rem; color: var(--steel); font-weight: 500; font-family: "Inter", sans-serif; }
.price.featured { border-color: var(--signal); box-shadow: 0 24px 60px -34px rgba(255,122,26,.6); }
.price .badge { align-self: flex-start; }
.feat-list { list-style: none; padding: 0; margin: 18px 0 0; display: grid; gap: 11px; }
.feat-list li { display: flex; gap: 11px; align-items: flex-start; font-size: .94rem; color: var(--steel); }
.dark .feat-list li { color: var(--steel-300); }
.feat-list svg { width: 18px; height: 18px; color: var(--signal); flex: none; margin-top: 2px; }

/* ---- Footer ---- */
.footer { background: var(--ink); color: var(--paper); padding-block: 70px 36px; }
.footer .cols { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 36px; }
.footer h4 { font-family: "JetBrains Mono", monospace; font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--steel-300); font-weight: 500; margin-bottom: 18px; }
.footer a { color: #c9cdd4; font-size: .94rem; display: block; padding: 6px 0; transition: color .2s var(--ease); }
.footer a:hover { color: var(--signal); }
.footer .brand { color: var(--paper); margin-bottom: 16px; }
.footer .brand .mark { color: var(--paper); }
.footer-bottom { display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: center;
  margin-top: 52px; padding-top: 26px; border-top: 1px solid rgba(255,255,255,.10);
  font-family: "JetBrains Mono", monospace; font-size: .74rem; letter-spacing: .04em; color: var(--steel-300); }

/* ---- CTA band ---- */
.cta-band { border-radius: var(--radius-lg); padding: clamp(40px, 6vw, 72px); position: relative; overflow: hidden; }

/* ---- Architecture flow ---- */
.flow { display: grid; gap: 0; margin-top: 50px; }
.flow-stage {
  position: relative; display: grid; grid-template-columns: 56px 1fr; gap: 22px;
  padding: 26px; border: 1px solid rgba(255,255,255,.10); border-radius: var(--radius-lg);
  background: var(--ink-800); transition: border-color .35s var(--ease), transform .35s var(--ease);
}
.flow-stage:hover { border-color: rgba(255,122,26,.45); transform: translateX(4px); }
.flow-stage .idx {
  width: 56px; height: 56px; border-radius: 14px; flex: none;
  display: flex; align-items: center; justify-content: center;
  font-family: "JetBrains Mono", monospace; font-weight: 500; font-size: 1rem;
  color: var(--signal); border: 1px solid rgba(255,122,26,.4); background: rgba(255,122,26,.08);
}
.flow-stage .st-title { font-family: "Clash Display", "Space Grotesk", sans-serif; font-weight: 600; font-size: 1.15rem; color: var(--paper); }
.flow-stage .st-desc { color: var(--steel-300); font-size: .94rem; margin-top: 6px; max-width: 60ch; }
.flow-stage .st-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.flow-connector { display: flex; justify-content: center; padding: 6px 0; }
.flow-connector svg { width: 22px; height: 30px; color: var(--steel); }
.flow-connector .pipe { width: 2px; height: 22px; background: linear-gradient(var(--signal), transparent); position: relative; overflow: hidden; }
.flow-connector .pipe::after {
  content: ""; position: absolute; left: -1px; top: -8px; width: 4px; height: 8px;
  background: var(--signal); border-radius: 2px; animation: flowdown 1.8s linear infinite;
}
@keyframes flowdown { to { transform: translateY(30px); } }

/* ---- Channel grid ---- */
.channels { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.channel {
  text-align: center; padding: 22px 14px; border-radius: var(--radius);
  border: 1px solid var(--mist); background: #fff; transition: transform .3s var(--ease), border-color .3s var(--ease);
}
.dark .channel { background: var(--ink-800); border-color: rgba(255,255,255,.10); }
.channel:hover { transform: translateY(-4px); border-color: var(--signal); }
.channel svg { width: 28px; height: 28px; margin: 0 auto 12px; color: var(--signal); stroke-width: 1.6; }
.channel .cn { font-weight: 600; font-size: .92rem; }
.channel .cd { font-size: .78rem; color: var(--steel); margin-top: 4px; }
.dark .channel .cd { color: var(--steel-300); }

@media (max-width: 760px) {
  .channels { grid-template-columns: repeat(2, 1fr); }
  .flow-stage { padding: 20px; gap: 16px; grid-template-columns: 44px 1fr; }
  .flow-stage .idx { width: 44px; height: 44px; }
}

/* ---- Media / photos ---- */
.media { position: relative; margin: 0; border-radius: var(--radius-lg); overflow: hidden; background: var(--mist); }
.media img { width: 100%; height: 100%; object-fit: cover; display: block; }
.media-cap {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 22px 24px;
  background: linear-gradient(transparent, rgba(17,22,31,.85)); color: var(--paper);
  font-family: "JetBrains Mono", monospace; font-size: .78rem; letter-spacing: .04em;
}
.media-cap .spark { color: var(--signal); }
.ratio-21 { aspect-ratio: 21 / 9; }
.ratio-169 { aspect-ratio: 16 / 9; }
.ratio-43 { aspect-ratio: 4 / 3; }
.ratio-portrait { aspect-ratio: 3 / 4; }
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
@media (max-width: 760px) {
  .gallery { grid-template-columns: 1fr; }
  .ratio-21 { aspect-ratio: 16 / 10; }
}

/* ---- Scroll reveal ---- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }
.reveal-scale { opacity: 0; transform: scale(.96); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal-scale.is-visible { opacity: 1; transform: none; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
  .g-4 { grid-template-columns: repeat(2, 1fr); }
  .footer .cols { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 860px) {
  .nav-links, .nav-cta .btn { display: none; }
  .nav-toggle { display: inline-flex; }
  .g-3 { grid-template-columns: 1fr; }
  .g-2 { grid-template-columns: 1fr; }
  .tl-item { grid-template-columns: 84px 1fr; gap: 16px; }
  .prod-grid { grid-template-columns: 1fr !important; }
  .cta-band { grid-template-columns: 1fr !important; text-align: left; }
  .split { grid-template-columns: 1fr !important; }
}
@media (max-width: 560px) {
  .wrap { padding-inline: 20px; }
  .g-4 { grid-template-columns: 1fr; }
  .footer .cols { grid-template-columns: 1fr; gap: 28px; }
  .card { padding: 26px; }
}

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .reveal, .reveal-scale { opacity: 1 !important; transform: none !important; }
  .ticker__track { animation: none; }
}