/* ===========================================================
   LOGXY — Design System
   Dark tech / startup. Palette derived from brand logo.
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;500;600;700;800&family=Albert+Sans:wght@300;400;500;600&family=Outfit:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Brand palette (from logo) */
  --navy:        #0B1620;
  --navy-2:      #0F1E2B;
  --surface:     #122636;
  --surface-2:   #16304380;
  --line:        rgba(255,255,255,0.08);
  --line-strong: rgba(255,255,255,0.16);

  --blue:        #38A9E4;
  --blue-bright: #5BC0F0;
  --teal:        #2BC4A0;
  --teal-bright: #3FE0B8;

  --ink:         #EAF2F8;
  --ink-soft:    rgba(234,242,248,0.62);
  --ink-faint:   rgba(234,242,248,0.38);

  --grad: linear-gradient(120deg, var(--blue) 0%, var(--teal) 100%);
  --grad-soft: linear-gradient(135deg, rgba(56,169,228,0.16), rgba(43,196,160,0.10));

  --maxw: 1280px;
  --pad: 64px;
  --radius: 18px;

  --font-display: 'Sora', sans-serif;
  --font-body: 'Albert Sans', sans-serif;
  --font-nav: 'Outfit', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

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

body {
  background: var(--navy);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Atmospheric background */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 78% 12%, rgba(56,169,228,0.16) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 12% 88%, rgba(43,196,160,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(15,30,43,0.5) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
}
body::after {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 70px 70px;
  mask-image: radial-gradient(ellipse 100% 100% at 50% 0%, black 0%, transparent 75%);
  pointer-events: none; z-index: 0;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
  position: relative; z-index: 1;
}

/* ---------- NAV ---------- */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(11,22,32,0.72);
  backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid var(--line);
  transition: background .3s;
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 18px var(--pad);
  display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand-logo { height: 34px; width: auto; }
footer .brand-logo { height: 40px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--grad);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 800;
  font-size: 16px; color: var(--navy);
  box-shadow: 0 6px 22px rgba(56,169,228,0.30);
}
.brand-name {
  font-family: var(--font-display); font-weight: 700;
  font-size: 21px; letter-spacing: -0.02em;
}
.brand-name b { font-weight: 800; }
.brand-name .x {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links { display: flex; align-items: center; gap: 38px; }
.nav-links a {
  font-family: var(--font-nav);
  font-size: 15px; font-weight: 500; letter-spacing: 0.01em;
  color: var(--ink-soft); padding: 6px 0;
  position: relative; transition: color .25s;
}
.nav-links a::after {
  content: ''; position: absolute; left: 0; bottom: 0;
  height: 1px; width: 0; background: var(--grad); transition: width .3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }

.nav-cta {
  font-family: var(--font-nav); font-size: 14.5px; font-weight: 600;
  padding: 9px 22px; border-radius: 8px;
  border: 1px solid var(--line-strong);
  color: var(--ink); transition: all .25s;
}
.nav-cta:hover { border-color: var(--blue); color: var(--blue-bright); transform: translateY(-1px); }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.burger span { width: 22px; height: 2px; background: var(--ink); transition: .3s; }

/* ---------- TYPOGRAPHY ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--blue-bright); margin-bottom: 22px;
}
.eyebrow::before { content: ''; width: 26px; height: 1px; background: var(--grad); }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.04; letter-spacing: -0.025em; }

.h-display { font-size: clamp(44px, 7vw, 92px); font-weight: 800; }
.h-section { font-size: clamp(32px, 4.6vw, 60px); }
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.lead { color: var(--ink-soft); font-size: clamp(15px, 1.3vw, 18px); max-width: 560px; }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 13.5px; font-weight: 500;
  padding: 14px 28px; border-radius: 10px;
  transition: all .28s cubic-bezier(.2,.7,.3,1);
}
.btn-primary {
  background: var(--grad); color: var(--navy); font-weight: 600;
  box-shadow: 0 10px 30px rgba(56,169,228,0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(56,169,228,0.40); }
.btn-ghost { border: 1px solid var(--line-strong); color: var(--ink); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue-bright); transform: translateY(-2px); }
.btn .arrow { transition: transform .25s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- SECTIONS ---------- */
section { padding: 120px 0; position: relative; z-index: 1; }
.sec-head { max-width: 640px; margin-bottom: 72px; }
.sec-head.center { margin: 0 auto 72px; text-align: center; }
.sec-head.center .eyebrow { justify-content: center; }
.sec-head p { color: var(--ink-soft); margin-top: 20px; font-size: 17px; }

/* ---------- CARDS GENERIC ---------- */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.035), rgba(255,255,255,0.012));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .3s, transform .3s, box-shadow .3s;
}
.card:hover {
  border-color: rgba(56,169,228,0.4);
  transform: translateY(-4px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}

.chip {
  display: inline-block;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.04em; color: var(--ink-soft);
  padding: 5px 12px; border-radius: 100px;
  border: 1px solid var(--line-strong);
  margin: 4px 6px 0 0;
}

/* ---------- FOOTER ---------- */
footer {
  border-top: 1px solid var(--line);
  padding: 70px 0 40px;
  position: relative; z-index: 1;
}
.foot-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr;
  gap: 50px; margin-bottom: 56px;
}
.foot-grid h4 {
  font-family: var(--font-mono); font-weight: 500;
  font-size: 12px; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--ink-faint); margin-bottom: 20px;
}
.foot-grid a, .foot-grid p { color: var(--ink-soft); font-size: 14.5px; display: block; margin-bottom: 11px; transition: color .2s; }
.foot-grid a:hover { color: var(--blue-bright); }
.foot-tag { color: var(--ink-soft); font-size: 14.5px; max-width: 300px; margin-top: 16px; }
.foot-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 30px; border-top: 1px solid var(--line);
  font-family: var(--font-mono); font-size: 12px; color: var(--ink-faint);
  flex-wrap: wrap; gap: 14px;
}

/* ---------- REVEAL ANIMATION ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- PAGE HERO (inner pages) ---------- */
.page-hero { padding: 180px 0 90px; }
.page-hero h1 { font-size: clamp(40px, 6vw, 78px); font-weight: 800; }
.page-hero .lead { margin-top: 24px; font-size: 18px; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 960px) {
  :root { --pad: 28px; }
  .nav-links, .nav-cta { display: none; }
  .nav-links.open {
    display: flex; position: fixed; top: 71px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--navy-2); border-bottom: 1px solid var(--line);
    padding: 8px 28px 24px;
  }
  .nav-links.open a { padding: 16px 0; border-bottom: 1px solid var(--line); width: 100%; font-size: 15px; }
  .burger { display: flex; }
  section { padding: 80px 0; }
  .foot-grid { grid-template-columns: 1fr; gap: 36px; }
  .foot-bottom { flex-direction: column; align-items: flex-start; }
}