/* ══════════════════════════════════════
   NEXUS AI — SHARED STYLES
   Used across all pages (landing + industry)
══════════════════════════════════════ */

/* ── VARIABLES ── */
:root {
  --blue:    #2B54E8;
  --blue-dk: #1E43C7;
  --blue-lt: #EEF2FF;
  --blue-md: #C7D2FE;
  --ink:     #0D0F1C;
  --ink-2:   #1A1D30;
  --muted:   #6B7280;
  --border:  #E5E7F0;
  --white:   #FFFFFF;
  --bg:      #F8F9FF;
  --ease:    cubic-bezier(.22,1,.36,1);
  --spring:  cubic-bezier(.34,1.56,.64,1);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: var(--bg);
  color: var(--ink);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── REVEAL ANIMATION ── */
.r { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.r.in { opacity: 1; transform: none; }

@keyframes pulse { 0%,100%{opacity:1;} 50%{opacity:.35;} }

/* ══════════════════════════════════════
   NAV
══════════════════════════════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: 60px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229,231,240,.7);
  transition: box-shadow .3s;
}
nav.scrolled { box-shadow: 0 2px 20px rgba(43,84,232,.07); }

.logo {
  font-size: 16px; font-weight: 800; letter-spacing: -.3px;
  color: var(--ink); text-decoration: none;
  display: flex; flex-direction: column; line-height: 1;
}
.logo span { color: var(--blue); }
.logo .blue { color: var(--blue); }
.logo-byline { font-size: 9px; font-weight: 500; color: var(--muted); letter-spacing: .05em; text-transform: uppercase; margin-top: 1px; }

.nav-center {
  position: absolute; left: 50%; transform: translateX(-50%);
  background: #F3F4F8; border-radius: 100px;
  padding: 5px 6px;
  display: flex; align-items: center; gap: 2px;
}
.nav-center a {
  font-size: 13.5px; font-weight: 500; color: var(--muted);
  text-decoration: none; padding: 7px 18px; border-radius: 100px;
  transition: color .18s, background .18s;
  white-space: nowrap;
}
.nav-center a:hover, .nav-center a.active { color: var(--ink); background: var(--white); box-shadow: 0 1px 6px rgba(0,0,0,.07); }

.nav-cta {
  display: inline-flex; align-items: center;
  background: var(--blue); color: #fff;
  padding: 9px 22px; border-radius: 100px;
  font-size: 13.5px; font-weight: 600; text-decoration: none;
  box-shadow: 0 4px 18px rgba(43,84,232,.3);
  transition: background .2s, transform .18s, box-shadow .2s;
}
.nav-cta:hover { background: var(--blue-dk); transform: translateY(-1px); box-shadow: 0 8px 26px rgba(43,84,232,.38); }

/* ══════════════════════════════════════
   LOGO STRIP
══════════════════════════════════════ */
.logo-strip { background: var(--white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 22px 40px; }
.logo-strip-label { text-align: center; font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: .06em; text-transform: uppercase; margin-bottom: 16px; }
.logo-strip-inner { max-width: 1000px; margin: 0 auto; display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; }
.logo-item { font-size: 13px; font-weight: 700; color: #9CA3AF; padding: 7px 18px; border-radius: 100px; border: 1.5px solid #E5E7EB; transition: color .2s, border-color .2s; letter-spacing: -.1px; }
.logo-item:hover { color: var(--ink); border-color: var(--blue-md); }

/* ══════════════════════════════════════
   SECTION SYSTEM
══════════════════════════════════════ */
.section { padding: 96px 40px; }
.section-white { background: var(--white); }
.section-dark { background: var(--ink); }
.wrap { max-width: 1100px; margin: 0 auto; }

.s-tag { display: inline-flex; align-items: center; gap: 6px; background: var(--blue-lt); color: var(--blue); font-size: 11.5px; font-weight: 700; padding: 5px 13px; border-radius: 100px; margin-bottom: 16px; letter-spacing: .3px; text-transform: uppercase; }
.s-heading { font-size: clamp(28px, 3.5vw, 48px); font-weight: 800; letter-spacing: -2px; line-height: 1.08; color: var(--ink); }
.s-heading .blue { color: var(--blue); }
.s-body { font-size: 15.5px; color: var(--muted); line-height: 1.75; max-width: 460px; margin-top: 14px; }

/* ══════════════════════════════════════
   CTA SECTION
══════════════════════════════════════ */
.cta-section { padding: 110px 40px; text-align: center; }
.cta-inner { max-width: 600px; margin: 0 auto; }
.cta-tag { display:inline-flex; align-items:center; gap:6px; background:rgba(43,84,232,.18); border:1px solid rgba(43,84,232,.26); color:#93a8f7; font-size:11.5px; font-weight:600; padding:5px 13px; border-radius:100px; margin-bottom:18px; letter-spacing:.3px; }
.cta-h { font-size: clamp(28px,3.5vw,48px); font-weight:800; letter-spacing:-2px; line-height:1.08; color:#fff; margin-bottom:14px; }
.cta-h .blue { color: #818cf8; }
.cta-p { font-size:15.5px; color:rgba(255,255,255,.42); line-height:1.75; margin-bottom:32px; }
.btn-cta { display:inline-flex; align-items:center; gap:9px; background:var(--blue); color:#fff; padding:14px 30px; border-radius:100px; font-size:15px; font-weight:700; text-decoration:none; box-shadow:0 8px 28px rgba(43,84,232,.48); transition:transform .2s var(--ease),box-shadow .2s,background .2s; }
.btn-cta:hover { background:var(--blue-dk); transform:translateY(-2px); box-shadow:0 14px 40px rgba(43,84,232,.58); }
.cta-checks { display:flex; justify-content:center; gap:24px; flex-wrap:wrap; margin-top:18px; }
.cta-check { display:flex; align-items:center; gap:5px; font-size:12.5px; color:rgba(255,255,255,.3); }
.cta-check::before { content:'✓'; color:var(--blue); font-weight:700; }

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
footer { background: var(--white); border-top: 1px solid var(--border); padding: 56px 40px 32px; }
.foot-grid { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 48px; }
.foot-brand-logo { font-size: 16px; font-weight: 800; letter-spacing: -.3px; color: var(--ink); }
.foot-brand-logo span { color: var(--blue); }
.foot-contacts { margin-top: 16px; display: flex; flex-direction: column; gap: 6px; }
.foot-contacts span { font-size: 12.5px; color: var(--muted); }
.foot-col h5 { font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 1.5px; color: var(--muted); margin-bottom: 14px; }
.foot-col ul { list-style: none; display: flex; flex-direction: column; gap: 9px; }
.foot-col a { font-size: 13.5px; color: var(--ink-2); text-decoration: none; transition: color .18s; }
.foot-col a:hover { color: var(--blue); }
.foot-btm { max-width: 1100px; margin: 32px auto 0; padding-top: 18px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: var(--muted); }

/* ══════════════════════════════════════
   RESPONSIVE — SHARED BREAKPOINTS
══════════════════════════════════════ */
@media (max-width: 900px) {
  nav { padding: 0 20px; }
  .nav-center { display: none; }
  .section { padding: 64px 20px; }
  .cta-section { padding: 72px 20px; }
  .logo-strip { padding: 18px 20px; }
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  footer { padding: 40px 20px 24px; }
  .foot-btm { flex-direction: column; gap: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .foot-grid { grid-template-columns: 1fr; gap: 28px; }
  .cta-checks { flex-direction: column; align-items: center; gap: 10px; }
  .logo-strip-inner { gap: 6px; }
  .logo-item { font-size: 11px; padding: 5px 12px; }
}