/* ============================================================
   CodeNitro — "Machine Precision" Design System
   Dark-fixed, mobile-first. Conversion > estética.
   ============================================================ */

:root {
  /* Core neutrals */
  --bg: #05060A;
  --surface: #0B1020;
  --surface-2: #0E1428;
  --text: #F8FAFC;
  --muted: #9AA4B2;
  --line: #1B2440;

  /* Accents */
  --cyan: #20D8FF;
  --blue: #0077FF;
  --purple: #8B5CF6;
  --green: #27EAAE;
  --amber: #EAB308;
  --pink: #EC4899;

  /* Gradients */
  --grad-primary: linear-gradient(135deg, #20D8FF 0%, #0077FF 55%, #8B5CF6 100%);
  --grad-text: linear-gradient(120deg, #20D8FF 0%, #7DD3FF 40%, #8B5CF6 100%);
  --grad-surface: linear-gradient(180deg, rgba(32,216,255,0.06), rgba(139,92,246,0.02));

  /* Effects */
  --glow-cyan: 0 0 0 1px rgba(32,216,255,.35), 0 8px 40px -8px rgba(32,216,255,.45);
  --shadow-card: 0 20px 60px -24px rgba(0,0,0,.7);
  --radius: 16px;
  --radius-sm: 12px;
  --radius-lg: 22px;

  /* Rhythm (8px base) */
  --sp-1: 8px; --sp-2: 16px; --sp-3: 24px; --sp-4: 32px;
  --sp-5: 48px; --sp-6: 64px; --sp-7: 96px; --sp-8: 128px;

  --maxw: 1200px;
  --font-head: 'Orbitron', 'Rajdhani', system-ui, sans-serif;
  --font-sub: 'Rajdhani', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; }

/* ---------- Ambient background ---------- */
.bg-field {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(1000px 600px at 78% -8%, rgba(32,216,255,.10), transparent 60%),
    radial-gradient(900px 700px at 10% 8%, rgba(139,92,246,.10), transparent 60%),
    radial-gradient(700px 600px at 50% 108%, rgba(0,119,255,.08), transparent 60%);
}
.bg-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: .5;
  background-image:
    linear-gradient(rgba(27,36,64,.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27,36,64,.55) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 40%, transparent 100%);
}

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.section { padding: var(--sp-7) 0; position: relative; }
.section--tight { padding: var(--sp-6) 0; }

/* ---------- Typography ---------- */
.eyebrow {
  font-family: var(--font-sub);
  text-transform: uppercase;
  letter-spacing: .26em;
  font-size: 12.5px; font-weight: 600;
  color: var(--cyan);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--cyan); opacity: .7; }
.eyebrow--center { justify-content: center; }

h1, h2, h3 { font-family: var(--font-head); line-height: 1.05; letter-spacing: -.01em; font-weight: 800; }
.h-xl { font-size: clamp(2.4rem, 7vw, 5rem); }
.h-lg { font-size: clamp(2rem, 5vw, 3.4rem); }
.h-md { font-size: clamp(1.5rem, 3.4vw, 2.3rem); }
.sub { font-family: var(--font-sub); font-weight: 600; }

.grad-text {
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.lead { color: var(--muted); font-size: clamp(1rem, 2.2vw, 1.22rem); line-height: 1.7; }
.section-head { max-width: 720px; margin-bottom: var(--sp-5); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { margin: 16px 0 14px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 22px; border-radius: 12px;
  font-family: var(--font-sub); font-weight: 700; font-size: 15px;
  letter-spacing: .02em; text-transform: uppercase;
  transition: transform .18s ease, box-shadow .25s ease, background .25s ease;
  will-change: transform;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  background: var(--grad-primary); color: #04121e;
  box-shadow: 0 10px 34px -10px rgba(32,216,255,.7), inset 0 0 0 1px rgba(255,255,255,.12);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 44px -10px rgba(32,216,255,.85); }
.btn-ghost {
  background: rgba(255,255,255,.02); color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line);
}
.btn-ghost:hover { box-shadow: inset 0 0 0 1px var(--cyan); transform: translateY(-2px); color: #fff; }
.btn-wa { background: #22c55e; color: #04120a; box-shadow: 0 10px 30px -12px rgba(34,197,94,.7); }
.btn-wa:hover { transform: translateY(-2px); box-shadow: 0 16px 40px -12px rgba(34,197,94,.85); }
.btn-block { width: 100%; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(5,6,10,.72);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.site-header.scrolled { border-bottom-color: var(--line); background: rgba(5,6,10,.9); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: var(--font-head); font-weight: 800; font-size: 19px; letter-spacing: .01em; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 9px; display: grid; place-items: center;
  background: var(--grad-primary); box-shadow: 0 6px 20px -6px rgba(32,216,255,.7);
}
.brand .logo svg { width: 20px; height: 20px; }
.brand b { color: #fff; } .brand span { color: var(--cyan); }
.nav-links { display: none; align-items: center; gap: 30px; }
.nav-links a { font-family: var(--font-sub); font-weight: 600; font-size: 15px; color: var(--muted); transition: color .2s; position: relative; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: #fff; }
.nav-links a::after { content:""; position:absolute; left:0; bottom:-6px; height:2px; width:0; background:var(--cyan); transition:width .25s; }
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { width: 100%; }
.nav-cta { display: none; }
.nav-toggle { display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 10px; box-shadow: inset 0 0 0 1px var(--line); }
.nav-toggle span { width: 18px; height: 2px; background: #fff; position: relative; display: block; }
.nav-toggle span::before, .nav-toggle span::after { content:""; position:absolute; left:0; width:18px; height:2px; background:#fff; transition:.25s; }
.nav-toggle span::before { top:-6px; } .nav-toggle span::after { top:6px; }
.mobile-menu {
  display: none; flex-direction: column; gap: 6px; padding: 14px 22px 24px;
  border-bottom: 1px solid var(--line); background: rgba(5,6,10,.97);
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-family: var(--font-sub); font-weight: 600; font-size: 17px; color: var(--muted); padding: 12px 0; border-bottom: 1px solid rgba(27,36,64,.6); }
.mobile-menu a:last-of-type { border-bottom: 0; }
.mobile-menu .btn { margin-top: 12px; }

@media (min-width: 900px) {
  .nav-links, .nav-cta { display: flex; }
  .nav-toggle { display: none; }
}

/* ---------- Cards ---------- */
.card {
  position: relative; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; overflow: hidden;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card::before {
  content:""; position:absolute; top:0; left:0; right:0; height:2px;
  background: var(--grad-primary); opacity:.85; transform: scaleX(.4); transform-origin:left; transition: transform .3s;
}
.card:hover { transform: translateY(-4px); border-color: rgba(32,216,255,.4); box-shadow: var(--shadow-card); }
.card:hover::before { transform: scaleX(1); }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: rgba(32,216,255,.08); color: var(--cyan); margin-bottom: 16px;
  box-shadow: inset 0 0 0 1px rgba(32,216,255,.22);
}
.card .icon svg { width: 22px; height: 22px; }
.card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: .96rem; }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-sub); font-weight: 700; font-size: 11.5px;
  letter-spacing: .12em; text-transform: uppercase;
  padding: 6px 12px; border-radius: 999px;
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; }
.badge--op { color: var(--green); background: rgba(39,234,174,.10); box-shadow: inset 0 0 0 1px rgba(39,234,174,.32); }
.badge--op .dot { background: var(--green); box-shadow: 0 0 8px var(--green); animation: pulse 2s infinite; }
.badge--done { color: #6db7ff; background: rgba(0,119,255,.12); box-shadow: inset 0 0 0 1px rgba(0,119,255,.35); }
.badge--done .dot { background: var(--blue); }
.badge--proto { color: #b79cff; background: rgba(139,92,246,.12); box-shadow: inset 0 0 0 1px rgba(139,92,246,.35); }
.badge--proto .dot { background: var(--purple); }
@keyframes pulse { 0%,100%{ opacity:1;} 50%{opacity:.35;} }

/* ---------- Stats ---------- */
.stat { }
.stat .num { font-family: var(--font-head); font-weight: 800; font-size: clamp(1.7rem, 4vw, 2.5rem); line-height: 1; }
.stat .lbl { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; margin-top: 8px; font-family: var(--font-sub); font-weight:600; }

/* ---------- Grids ---------- */
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: repeat(2, 1fr); }
@media (min-width: 720px){ .grid-2{grid-template-columns:repeat(2,1fr);} .grid-3{grid-template-columns:repeat(2,1fr);} }
@media (min-width: 980px){ .grid-3{grid-template-columns:repeat(3,1fr);} .grid-4{grid-template-columns:repeat(4,1fr);} }

/* ---------- Flow diagram ---------- */
.flow { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.flow-node {
  flex: 1 1 130px; min-width: 120px; text-align: center;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: 12px;
  padding: 16px 12px; position: relative; transition: border-color .25s, transform .25s;
}
.flow-node:hover { border-color: rgba(32,216,255,.5); transform: translateY(-2px); }
.flow-node .fn-ic { width: 34px; height:34px; margin:0 auto 8px; border-radius:9px; display:grid; place-items:center; background:rgba(32,216,255,.08); color:var(--cyan); box-shadow: inset 0 0 0 1px rgba(32,216,255,.25); }
.flow-node .fn-ic svg{width:18px;height:18px;}
.flow-node .fn-t { font-family: var(--font-sub); font-weight:700; font-size:.92rem; }
.flow-node .fn-s { color: var(--muted); font-size:.74rem; margin-top:3px; }
.flow-arrow { color: var(--cyan); flex: 0 0 auto; opacity:.8; }
.flow-arrow svg { width: 22px; height: 22px; }
@media (max-width: 640px){
  .flow { flex-direction: column; align-items: stretch; }
  .flow-node { width: 100%; }
  .flow-arrow { transform: rotate(90deg); align-self: center; }
}

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1{transition-delay:.08s;} .reveal.d2{transition-delay:.16s;} .reveal.d3{transition-delay:.24s;} .reveal.d4{transition-delay:.32s;} .reveal.d5{transition-delay:.4s;}
@media (prefers-reduced-motion: reduce){ .reveal{opacity:1;transform:none;transition:none;} }

/* ---------- Floating WhatsApp ---------- */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 90;
  display: inline-flex; align-items: center; gap: 10px;
  background: #22c55e; color: #04120a; font-family: var(--font-sub); font-weight: 700;
  padding: 13px 18px; border-radius: 999px; font-size: 14px;
  box-shadow: 0 14px 40px -10px rgba(34,197,94,.7); transition: transform .2s;
}
.wa-float:hover { transform: translateY(-3px) scale(1.02); }
.wa-float svg { width: 22px; height: 22px; }
.wa-float .wa-txt { display: none; }
@media (min-width: 560px){ .wa-float .wa-txt { display: inline; } }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: linear-gradient(180deg, transparent, rgba(11,16,32,.6)); padding: var(--sp-6) 0 var(--sp-4); margin-top: var(--sp-6); }
.footer-grid { display: grid; gap: 34px; grid-template-columns: 1fr; }
@media (min-width: 760px){ .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.footer-brand p { color: var(--muted); margin: 14px 0 18px; max-width: 340px; }
.footer-sig { font-family: var(--font-head); font-size: 12px; letter-spacing: .22em; color: var(--muted); text-transform: uppercase; }
.footer-col h4 { font-family: var(--font-sub); text-transform: uppercase; letter-spacing:.14em; font-size:.8rem; color:#fff; margin-bottom:14px; }
.footer-col a { display:block; color: var(--muted); padding: 6px 0; transition: color .2s; font-size:.95rem; }
.footer-col a:hover { color: var(--cyan); }
.footer-bottom { display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between; align-items:center; margin-top: var(--sp-5); padding-top: 22px; border-top: 1px solid var(--line); color: var(--muted); font-size: .85rem; }

/* ---------- Utilities ---------- */
.center { text-align: center; }
.mt-1{margin-top:var(--sp-1);} .mt-2{margin-top:var(--sp-2);} .mt-3{margin-top:var(--sp-3);} .mt-4{margin-top:var(--sp-4);} .mt-5{margin-top:var(--sp-5);}
.mb-2{margin-bottom:var(--sp-2);} .mb-3{margin-bottom:var(--sp-3);}
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; }
.divider { height:1px; background: var(--line); border:0; margin: var(--sp-5) 0; }
.chip { display:inline-flex; align-items:center; gap:7px; font-family:var(--font-sub); font-weight:600; font-size:12.5px; letter-spacing:.06em; color:var(--muted); padding:6px 12px; border-radius:999px; box-shadow: inset 0 0 0 1px var(--line); background: rgba(255,255,255,.015); }
.chip .dot { width:6px; height:6px; border-radius:50%; background: var(--cyan); }
.tag-list { display:flex; flex-wrap:wrap; gap:8px; }

/* ---------- Hero numbers panel ---------- */
.numbers-panel {
  margin-top: 34px; padding: 22px; border-radius: var(--radius);
  background: var(--grad-surface); border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03);
}
.np-head { margin-bottom: 16px; }
.np-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px 14px; }
.np-grid .num { color: #fff; }
.np-grid .stat:nth-child(2) .num,.np-grid .stat:nth-child(5) .num { color: var(--cyan); }
.np-grid .stat:nth-child(3) .num { color: var(--green); }
@media (max-width: 380px){ .np-grid { grid-template-columns: repeat(2,1fr); } }

/* ---------- Architect card ---------- */
.architect-card {
  border-radius: var(--radius-lg); padding: 40px 28px; text-align: center;
  background:
    radial-gradient(600px 240px at 50% 0%, rgba(139,92,246,.18), transparent 70%),
    linear-gradient(180deg, #0C1224, #080C18);
  border: 1px solid var(--line); position: relative; overflow: hidden;
}
.architect-card::after{ content:""; position:absolute; inset:0; background-image:
  linear-gradient(rgba(32,216,255,.06) 1px, transparent 1px),
  linear-gradient(90deg, rgba(32,216,255,.06) 1px, transparent 1px);
  background-size:26px 26px; mask-image:radial-gradient(circle at 50% 40%,#000,transparent 75%); -webkit-mask-image:radial-gradient(circle at 50% 40%,#000,transparent 75%); }
.architect-card > * { position: relative; }
.ac-mono {
  font-family: var(--font-head); font-weight: 800; font-size: 3rem;
  width: 92px; height: 92px; margin: 0 auto 18px; border-radius: 20px;
  display: grid; place-items: center; color: #04121e;
  background: var(--grad-primary); box-shadow: 0 20px 50px -14px rgba(32,216,255,.6);
}

/* ---------- Final CTA ---------- */
.cta-final {
  text-align: center; padding: clamp(40px,7vw,80px) 24px; border-radius: var(--radius-lg);
  background:
    radial-gradient(700px 300px at 50% 0%, rgba(32,216,255,.14), transparent 70%),
    linear-gradient(180deg, #0A1122, #070B16);
  border: 1px solid var(--line); position: relative; overflow: hidden;
}
.cta-final::before{ content:""; position:absolute; inset:0; background-image:
  linear-gradient(rgba(139,92,246,.06) 1px, transparent 1px),
  linear-gradient(90deg, rgba(139,92,246,.06) 1px, transparent 1px);
  background-size:34px 34px; mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000,transparent); -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 0%,#000,transparent); }
.cta-final > * { position: relative; }

/* ---------- Invite card ---------- */
.card--invite {
  border-style: dashed; border-color: rgba(32,216,255,.4);
  background: linear-gradient(180deg, rgba(32,216,255,.06), rgba(139,92,246,.04));
  display: flex; flex-direction: column;
}
.card--invite::before { display: none; }
.card--invite:hover { border-style: solid; border-color: var(--cyan); }
.card--invite .invite-cta {
  margin-top: auto; padding-top: 14px; font-family: var(--font-sub); font-weight: 700;
  color: var(--cyan); font-size: .98rem;
}