/* CFX-Quartermaster — landing (estética neon HUD de la app) */
:root {
  --bg: #05080d;
  --surface: #0a1118;
  --panel: #0d1620;
  --line: #16222e;
  --line-2: #1d2c3a;
  --field: #0a141d;
  --text: #d4e9f2;
  --text-dim: #7d97a6;
  --text-mute: #51677a;
  --cyan: #2ce7ff;
  --amber: #ffb347;
  --green: #3ddc97;
  --violet: #b07cff;
  --font-head: "Chakra Petch", sans-serif;
  --font-mono: "JetBrains Mono", monospace;
  --font-body: system-ui, "Segoe UI", sans-serif;
  --radius: 4px;
  --glow: 0 0 22px color-mix(in srgb, var(--cyan) 22%, transparent);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}
.mono { font-family: var(--font-mono); }
.dim { color: var(--text-mute); }
a { color: var(--cyan); text-decoration: none; }

/* rejilla de fondo */
.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.35;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 75%);
}

/* topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 14px;
  height: 60px;
  padding: 0 clamp(16px, 5vw, 48px);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(8px);
}
.mark { font-family: var(--font-head); font-weight: 700; letter-spacing: 0.1em; font-size: 15px; }
.mark b { color: var(--cyan); }
.spacer { flex: 1; }
.lang {
  background: transparent;
  border: 1px solid var(--line-2);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 7px 12px;
  border-radius: var(--radius);
  cursor: pointer;
}
.lang:hover { color: var(--cyan); border-color: var(--cyan); }

/* botones */
.btn {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #06121a;
  background: var(--cyan);
  border: none;
  padding: 12px 22px;
  clip-path: polygon(10px 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%, 0 10px);
  border-radius: var(--radius);
  box-shadow: var(--glow);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}
.btn:hover { filter: brightness(1.1); }
.btn-sm { padding: 9px 16px; font-size: 12px; }
.btn-big { padding: 16px 30px; font-size: 15px; }
.vtag {
  font-size: 11px;
  background: rgba(0, 0, 0, 0.25);
  padding: 3px 8px;
  border-radius: 3px;
  letter-spacing: 0.06em;
}

/* hero */
.hero {
  position: relative;
  text-align: center;
  padding: clamp(48px, 9vh, 96px) 20px 56px;
  max-width: 860px;
  margin: 0 auto;
}
.hero-icon {
  filter: drop-shadow(0 0 28px color-mix(in srgb, var(--cyan) 45%, transparent));
  margin-bottom: 18px;
}
.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(30px, 6vw, 52px);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 10px;
}
.hero h1 b { color: var(--cyan); }
.tagline {
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: 0.32em;
  margin: 0 0 22px;
}
.lead {
  color: var(--text-dim);
  font-size: 17px;
  max-width: 580px;
  margin: 0 auto 34px;
}
.cta { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.cta.center { margin-top: 38px; }
.cta-note { font-size: 12px; color: var(--text-mute); letter-spacing: 0.08em; }

/* stats */
.stats {
  display: flex;
  justify-content: center;
  gap: clamp(18px, 5vw, 56px);
  margin-top: 54px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat .v {
  font-family: var(--font-head);
  font-size: 30px;
  font-weight: 700;
  color: var(--cyan);
  text-shadow: 0 0 18px color-mix(in srgb, var(--cyan) 40%, transparent);
}
.stat .k { font-size: 11px; color: var(--text-mute); letter-spacing: 0.14em; text-transform: uppercase; }

/* secciones */
.sec-title {
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--text-mute);
  text-transform: uppercase;
  margin: 0 0 28px;
}
.features, .how {
  max-width: 1060px;
  margin: 0 auto;
  padding: 56px clamp(16px, 5vw, 48px);
}

/* tarjetas */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 16px; }
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  clip-path: polygon(14px 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%, 0 14px);
  padding: 22px 22px 18px;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.card:hover { border-color: var(--line-2); box-shadow: 0 0 26px color-mix(in srgb, var(--cyan) 8%, transparent); }
.card .ic {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: var(--cyan);
  font-size: 19px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  margin-bottom: 14px;
  background: color-mix(in srgb, var(--cyan) 6%, transparent);
}
.card h3 { font-family: var(--font-head); font-size: 16px; letter-spacing: 0.04em; margin: 0 0 8px; }
.card p { color: var(--text-dim); font-size: 13.5px; margin: 0; }

/* pasos */
.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  padding: 0;
  margin: 0;
}
.steps li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.steps .n { color: var(--amber); font-size: 13px; letter-spacing: 0.2em; }
.steps h3 { font-family: var(--font-head); font-size: 16px; margin: 10px 0 8px; }
.steps p { color: var(--text-dim); font-size: 13.5px; margin: 0; }

/* footer */
.foot {
  border-top: 1px solid var(--line);
  padding: 26px clamp(16px, 5vw, 48px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
  align-items: center;
}