/* ============ Qalpa Quantum — shared styles ============ */
:root {
  --bg: #04060f;
  --bg-2: #070b1a;
  --panel: rgba(255, 255, 255, 0.035);
  --panel-border: rgba(255, 255, 255, 0.09);
  --text: #e8ecf8;
  --muted: #9aa3bd;
  --violet: #3aae72;
  --cyan: #eaa63f;
  --teal: #b9ac54;
  --grad: linear-gradient(92deg, #2fae72 0%, #a9ad58 55%, #f0a43c 100%);
  --radius: 18px;
  --maxw: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 { font-family: "Space Grotesk", "Inter", sans-serif; line-height: 1.15; letter-spacing: -0.015em; }

a { color: inherit; text-decoration: none; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

/* ---------- background aura ---------- */
.aura {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(900px 500px at 15% -5%, rgba(47, 174, 114, 0.16), transparent 60%),
    radial-gradient(800px 480px at 90% 10%, rgba(234, 166, 63, 0.10), transparent 60%),
    radial-gradient(700px 500px at 55% 110%, rgba(185, 172, 84, 0.07), transparent 60%),
    var(--bg);
}
.grid-overlay {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.5;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, #000 30%, transparent 75%);
}

/* ---------- nav ---------- */
header.site {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: rgba(4, 6, 15, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.navbar { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand img.logo-img { height: 40px; width: auto; display: block; }
.brand .mark { width: 34px; height: 34px; flex: none; }
.brand .name { font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 1.22rem; letter-spacing: 0.01em; }
.brand .name small { display: block; font-size: 0.62rem; font-weight: 500; letter-spacing: 0.34em; color: var(--muted); text-transform: uppercase; }
nav.links { display: flex; align-items: center; gap: 30px; font-size: 0.95rem; color: var(--muted); }
nav.links a { transition: color 0.2s; padding: 4px 0; }
nav.links a:hover { color: var(--text); }
nav.links a.active { color: var(--text); position: relative; }
nav.links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px;
  background: var(--grad); border-radius: 2px;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; border-radius: 999px; font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer; transition: transform 0.18s, box-shadow 0.18s, background 0.2s;
}
.btn-primary {
  background: var(--grad); color: #05070e;
  box-shadow: 0 6px 28px rgba(47, 174, 114, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 34px rgba(47, 174, 114, 0.45); }
.btn-ghost { border-color: rgba(255,255,255,0.18); color: var(--text); background: rgba(255,255,255,0.02); }
.btn-ghost:hover { background: rgba(255,255,255,0.06); transform: translateY(-2px); }
.nav-cta { padding: 10px 20px; font-size: 0.88rem; }

.menu-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.6rem; cursor: pointer; }

/* ---------- hero ---------- */
.hero { position: relative; padding: 96px 0 72px; }
.hero-inner { max-width: 880px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase; font-weight: 600;
  color: var(--cyan);
  border: 1px solid rgba(234, 166, 63, 0.25);
  background: rgba(234, 166, 63, 0.06);
  padding: 8px 16px; border-radius: 999px; margin-bottom: 26px;
}
.eyebrow::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 12px var(--cyan); }
.hero h1 { font-size: clamp(2.4rem, 5.4vw, 4.1rem); font-weight: 700; margin-bottom: 24px; }
.hero h1 .g { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.lead { font-size: clamp(1.05rem, 1.8vw, 1.24rem); color: var(--muted); max-width: 720px; margin-bottom: 38px; }
.hero .cta-row { display: flex; gap: 16px; flex-wrap: wrap; }

canvas#particles { position: absolute; inset: 0; z-index: -1; opacity: 0.55; }

/* ---------- compatibility strip ---------- */
.compat { padding: 26px 0 64px; }
.compat .label { text-align: center; font-size: 0.78rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--muted); margin-bottom: 22px; }
.compat-row { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.chip {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 24px; border-radius: 14px;
  border: 1px solid var(--panel-border); background: var(--panel);
  font-family: "Space Grotesk", sans-serif; font-weight: 600; font-size: 1rem;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}
.chip:hover { border-color: rgba(234,166,63,0.45); transform: translateY(-3px); background: rgba(234,166,63,0.05); }
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--grad); box-shadow: 0 0 10px rgba(234,166,63,0.8); }
.chip small { color: var(--muted); font-weight: 500; font-family: "Inter", sans-serif; }

/* ---------- sections ---------- */
section.block { padding: 84px 0; }
section.block.tight { padding: 56px 0; }
.sec-head { max-width: 760px; margin-bottom: 52px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.kicker { font-size: 0.78rem; letter-spacing: 0.24em; text-transform: uppercase; font-weight: 700; margin-bottom: 14px;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sec-head h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); margin-bottom: 16px; }
.sec-head p { color: var(--muted); font-size: 1.06rem; }

/* ---------- cards ---------- */
.grid { display: grid; gap: 22px; }
.grid.c2 { grid-template-columns: repeat(2, 1fr); }
.grid.c3 { grid-template-columns: repeat(3, 1fr); }
.grid.c4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative; border-radius: var(--radius);
  border: 1px solid var(--panel-border); background: var(--panel);
  padding: 30px 28px; overflow: hidden;
  transition: transform 0.22s, border-color 0.22s, box-shadow 0.22s;
}
.card:hover { transform: translateY(-5px); border-color: rgba(47, 174, 114, 0.4); box-shadow: 0 18px 46px rgba(3, 6, 20, 0.6); }
.card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad); opacity: 0; transition: opacity 0.25s;
}
.card:hover::before { opacity: 1; }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 20px;
  background: linear-gradient(140deg, rgba(47,174,114,0.18), rgba(234,166,63,0.12));
  border: 1px solid rgba(47,174,114,0.3);
}
.card .icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 1.18rem; margin-bottom: 10px; }
.card p { color: var(--muted); font-size: 0.95rem; }
.card .more { display: inline-block; margin-top: 16px; font-size: 0.88rem; font-weight: 600; color: var(--cyan); }

/* ---------- product detail rows ---------- */
.prod {
  display: grid; grid-template-columns: 1fr 1.35fr; gap: 44px; align-items: start;
  padding: 52px 0; border-top: 1px solid rgba(255,255,255,0.07);
}
.prod:first-of-type { border-top: none; }
.prod .side .num {
  font-family: "Space Grotesk", monospace; font-size: 0.85rem; font-weight: 700; letter-spacing: 0.2em;
  color: var(--cyan); margin-bottom: 12px; display: block;
}
.prod .side h3 { font-size: clamp(1.4rem, 2.4vw, 1.8rem); margin-bottom: 14px; }
.prod .side p.tag { color: var(--muted); font-size: 0.98rem; }
.prod ul { list-style: none; display: grid; gap: 13px; }
.prod ul li { position: relative; padding-left: 30px; color: #c6cde0; font-size: 0.99rem; }
.prod ul li::before {
  content: ""; position: absolute; left: 0; top: 9px; width: 14px; height: 3px; border-radius: 2px;
  background: var(--grad);
}
.prod ul li strong { color: var(--text); }
.pill-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }
.pill {
  font-size: 0.8rem; font-weight: 600; padding: 7px 14px; border-radius: 999px;
  border: 1px solid rgba(234,166,63,0.28); background: rgba(234,166,63,0.06); color: #ffe0ae;
}

/* ---------- stats / highlight band ---------- */
.band {
  border-radius: 22px; border: 1px solid var(--panel-border);
  background: linear-gradient(140deg, rgba(47,174,114,0.10), rgba(234,166,63,0.06) 55%, rgba(185,172,84,0.06));
  padding: 46px 44px;
}
.band-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 34px; }
.stat .v { font-family: "Space Grotesk", sans-serif; font-size: 2.1rem; font-weight: 700;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat .k { color: var(--muted); font-size: 0.92rem; margin-top: 6px; }

/* ---------- steps / engagement ---------- */
.step { counter-increment: step; }
.step .n {
  width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center;
  font-family: "Space Grotesk", sans-serif; font-weight: 700; margin-bottom: 18px;
  background: linear-gradient(140deg, rgba(47,174,114,0.25), rgba(234,166,63,0.18));
  border: 1px solid rgba(47,174,114,0.4);
}

/* ---------- CTA panel ---------- */
.cta-panel {
  text-align: center; border-radius: 26px; padding: 70px 40px; position: relative; overflow: hidden;
  border: 1px solid rgba(47,174,114,0.3);
  background:
    radial-gradient(600px 260px at 50% -20%, rgba(47,174,114,0.22), transparent 70%),
    radial-gradient(500px 240px at 80% 120%, rgba(234,166,63,0.12), transparent 70%),
    rgba(255,255,255,0.02);
}
.cta-panel h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); margin-bottom: 16px; }
.cta-panel p { color: var(--muted); max-width: 560px; margin: 0 auto 34px; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 44px; align-items: start; }
.info-card { display: grid; gap: 18px; }
.info-item { display: flex; gap: 16px; align-items: flex-start; padding: 22px; border-radius: 16px;
  border: 1px solid var(--panel-border); background: var(--panel); }
.info-item .icon { width: 40px; height: 40px; flex: none; border-radius: 10px; display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(47,174,114,0.2), rgba(234,166,63,0.14)); border: 1px solid rgba(47,174,114,0.35); }
.info-item .icon svg { width: 20px; height: 20px; }
.info-item h4 { font-size: 1rem; margin-bottom: 3px; }
.info-item p { color: var(--muted); font-size: 0.93rem; }

form.contact { display: grid; gap: 16px; padding: 34px; border-radius: 20px; border: 1px solid var(--panel-border); background: var(--panel); }
form.contact .row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
form.contact label { font-size: 0.85rem; font-weight: 600; color: #c6cde0; display: grid; gap: 8px; }
form.contact input, form.contact select, form.contact textarea {
  width: 100%; padding: 13px 16px; border-radius: 12px; color: var(--text);
  border: 1px solid rgba(255,255,255,0.12); background: rgba(4,6,15,0.6);
  font-family: inherit; font-size: 0.95rem; transition: border-color 0.2s, box-shadow 0.2s;
}
form.contact input:focus, form.contact select:focus, form.contact textarea:focus {
  outline: none; border-color: rgba(234,166,63,0.55); box-shadow: 0 0 0 3px rgba(234,166,63,0.12);
}
form.contact textarea { min-height: 130px; resize: vertical; }

/* ---------- footer ---------- */
footer.site {
  margin-top: 40px; border-top: 1px solid rgba(255,255,255,0.07);
  background: rgba(3, 5, 12, 0.7); padding: 56px 0 34px;
}
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; margin-bottom: 44px; }
.foot-grid h4 { font-size: 0.85rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.foot-grid ul { list-style: none; display: grid; gap: 10px; font-size: 0.95rem; color: #c6cde0; }
.foot-grid ul a:hover { color: var(--cyan); }
.foot-brand p { color: var(--muted); font-size: 0.93rem; max-width: 340px; margin-top: 14px; }
.foot-bottom { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
  padding-top: 26px; border-top: 1px solid rgba(255,255,255,0.06); color: var(--muted); font-size: 0.85rem; }

/* ---------- page hero (inner pages) ---------- */
.page-hero { padding: 84px 0 40px; }
.page-hero h1 { font-size: clamp(2.1rem, 4.4vw, 3.2rem); margin-bottom: 18px; }
.page-hero h1 .g { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.page-hero p { color: var(--muted); font-size: 1.12rem; max-width: 740px; }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.visible { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .grid.c3, .grid.c4 { grid-template-columns: repeat(2, 1fr); }
  .prod { grid-template-columns: 1fr; gap: 24px; padding: 44px 0; }
  .band-grid { grid-template-columns: 1fr; gap: 22px; }
  .contact-grid { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  nav.links {
    position: fixed; top: 74px; left: 0; right: 0; flex-direction: column; align-items: flex-start;
    background: rgba(4,6,15,0.97); padding: 26px 28px; gap: 20px; display: none;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  nav.links.open { display: flex; }
  .menu-toggle { display: block; }
  .nav-cta { display: none; }
  .grid.c2, .grid.c3, .grid.c4 { grid-template-columns: 1fr; }
  form.contact .row { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; }
  .hero { padding: 64px 0 48px; }
}