/* ============================================================
   OnexuAI — premium marketing site design system
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400;1,9..144,500&family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --bg: #06090f;
  --bg-1: #080c14;
  --bg-2: #0c121d;
  --card: rgba(255,255,255,0.035);
  --card-border: rgba(255,255,255,0.09);
  --card-border-hover: rgba(255,255,255,0.18);
  --text: #eef1f7;
  --text-dim: #aab1c2;
  --text-mute: #737c91;
  --blue: #5b8cff;
  --violet: #9b6bff;
  --cyan: #3fd2e0;
  --teal: #2fe0b8;
  --pink: #ff6bb0;
  --grad-brand: linear-gradient(120deg, var(--blue), var(--violet) 55%, var(--cyan));
  --grad-brand-2: linear-gradient(120deg, var(--cyan), var(--blue) 45%, var(--violet));
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 20px 60px -20px rgba(0,0,0,0.6);
  --ease: cubic-bezier(.16,.84,.44,1);
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
html,body{ margin:0; padding:0; }
body{
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  position: relative;
}

::selection{ background: var(--violet); color:#fff; }

a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
img{ max-width:100%; display:block; }
button{ font-family:inherit; }

.serif{ font-family:'Fraunces', serif; }

.container{
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ---------- background atmosphere ---------- */
.bg-fx{
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.bg-fx::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
  opacity: .5;
}
.orb{
  position:absolute;
  border-radius:50%;
  filter: blur(90px);
  opacity:.38;
  will-change: transform;
}
.orb-1{ width:640px; height:640px; top:-220px; left:-160px; background: radial-gradient(circle at 30% 30%, var(--blue), transparent 70%); animation: float1 22s ease-in-out infinite; }
.orb-2{ width:560px; height:560px; top:120px; right:-220px; background: radial-gradient(circle at 60% 40%, var(--violet), transparent 70%); animation: float2 26s ease-in-out infinite; }
.orb-3{ width:520px; height:520px; bottom:-260px; left:30%; background: radial-gradient(circle at 50% 50%, var(--teal), transparent 72%); opacity:.22; animation: float3 30s ease-in-out infinite; }

@keyframes float1{ 0%,100%{ transform:translate(0,0) scale(1);} 50%{ transform:translate(60px,40px) scale(1.08);} }
@keyframes float2{ 0%,100%{ transform:translate(0,0) scale(1);} 50%{ transform:translate(-50px,60px) scale(1.05);} }
@keyframes float3{ 0%,100%{ transform:translate(0,0) scale(1);} 50%{ transform:translate(40px,-30px) scale(1.1);} }

.cursor-glow{
  position: fixed;
  width: 480px; height: 480px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(circle, rgba(91,140,255,0.10), transparent 70%);
  transform: translate(-50%,-50%);
  transition: opacity .3s ease;
  opacity: 0;
}

/* ---------- nav ---------- */
.nav{
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 18px 0;
  transition: background .35s var(--ease), border-color .35s var(--ease), padding .35s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled{
  background: rgba(6,9,15,0.72);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid var(--card-border);
  padding: 12px 0;
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand{ display:flex; align-items:center; gap:10px; font-weight:700; letter-spacing:.02em; font-size:1.05rem; }
.brand .mark{ width:30px; height:30px; }
.brand .word{ background: linear-gradient(120deg,#fff,#c9d2e8); -webkit-background-clip:text; background-clip:text; color:transparent; }

.nav-links{ display:flex; align-items:center; gap:6px; }
.nav-links a{
  padding: 9px 14px;
  border-radius: 999px;
  font-size: .92rem;
  color: var(--text-dim);
  transition: color .2s, background .2s;
}
.nav-links a:hover{ color: var(--text); background: rgba(255,255,255,0.05); }
.nav-links a.active{ color: var(--text); background: rgba(255,255,255,0.06); }

.nav-actions{ display:flex; align-items:center; gap:10px; }
.lang-pill{ display:flex; align-items:center; gap:2px; background: rgba(255,255,255,0.04); border:1px solid var(--card-border); border-radius:999px; padding:3px; font-size:.78rem; }
.lang-pill span{ padding:5px 10px; border-radius:999px; color:var(--text-mute); cursor:pointer; }
.lang-pill span.on{ background: rgba(255,255,255,0.09); color:var(--text); }

.nav-burger{ display:none; }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .93rem;
  border: 1px solid transparent;
  cursor:pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .2s, background .2s;
  white-space: nowrap;
}
.btn-primary{
  background: var(--grad-brand);
  color: #04060a;
  box-shadow: 0 10px 30px -8px rgba(91,140,255,0.55);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 16px 40px -10px rgba(91,140,255,0.7); }
.btn-ghost{
  background: rgba(255,255,255,0.03);
  border-color: var(--card-border);
  color: var(--text);
}
.btn-ghost:hover{ border-color: var(--card-border-hover); background: rgba(255,255,255,0.06); transform: translateY(-2px); }
.btn-sm{ padding: 9px 16px; font-size:.85rem; }
.btn-block{ width:100%; }
.btn svg{ width:16px; height:16px; }

/* ---------- hero ---------- */
.hero{ position:relative; z-index:2; padding: 96px 0 60px; }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  padding: 7px 14px 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,0.03);
  font-size: .74rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 26px;
}
.eyebrow .dot{ width:6px; height:6px; border-radius:50%; background: var(--teal); box-shadow: 0 0 12px var(--teal); }

.hero-grid{ display:grid; grid-template-columns: 1.05fr .95fr; gap:56px; align-items:center; }
h1.display{
  font-family:'Fraunces', serif;
  font-weight: 400;
  font-size: clamp(2.6rem, 4.6vw, 4.1rem);
  line-height: 1.08;
  letter-spacing: -.01em;
  margin: 0 0 22px;
}
h1.display em{
  font-style: italic;
  font-weight: 500;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede{ font-size: 1.14rem; color: var(--text-dim); max-width: 46ch; margin: 0 0 34px; }
.hero-cta{ display:flex; gap:14px; margin-bottom: 34px; flex-wrap: wrap; }
.trust-row{ display:flex; gap:22px; flex-wrap:wrap; }
.trust-row .item{ display:flex; align-items:center; gap:8px; font-size:.86rem; color:var(--text-dim); }
.trust-row svg{ width:16px; height:16px; color: var(--teal); flex-shrink:0; }

/* ---------- device / mock panel ---------- */
.mock{
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid var(--card-border);
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.015));
  backdrop-filter: blur(20px);
  padding: 20px;
  box-shadow: var(--shadow-soft);
  animation: mockFloat 7s ease-in-out infinite;
}
@keyframes mockFloat{ 0%,100%{ transform: translateY(0);} 50%{ transform: translateY(-10px);} }
.mock-head{ display:flex; align-items:center; justify-content:space-between; margin-bottom:16px; }
.mock-head .lbl{ font-size:.72rem; letter-spacing:.1em; text-transform:uppercase; color:var(--text-mute); }
.mock-live{ display:flex; align-items:center; gap:6px; font-size:.72rem; color:var(--teal); background:rgba(47,224,184,0.1); border:1px solid rgba(47,224,184,0.25); padding:4px 10px; border-radius:999px; }
.mock-live .dot{ width:6px;height:6px;border-radius:50%; background:var(--teal); animation: pulse 1.8s infinite; }
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:.3; } }

.kpi-grid{ display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-bottom:14px; }
.kpi{ background: rgba(255,255,255,0.03); border:1px solid var(--card-border); border-radius:14px; padding:14px 16px; }
.kpi .l{ font-size:.68rem; letter-spacing:.08em; text-transform:uppercase; color:var(--text-mute); margin-bottom:6px; }
.kpi .v{ font-family:'Fraunces',serif; font-size:1.5rem; }
.kpi .v.up{ color: var(--teal); }
.kpi .d{ font-size:.72rem; color:var(--text-mute); margin-top:4px; }

.chip-row{ display:flex; gap:8px; flex-wrap:wrap; margin-top:14px; }
.chip{ font-size:.72rem; padding:7px 12px; border-radius:999px; background:rgba(255,255,255,0.04); border:1px solid var(--card-border); color:var(--text-dim); }

.mock-mission{ margin-top:14px; background: rgba(91,140,255,0.06); border:1px solid rgba(91,140,255,0.22); border-radius:14px; padding:14px 16px; }
.mock-mission .top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:8px;}
.grade{ font-family:'Fraunces',serif; font-weight:600; font-size:.95rem; padding:3px 10px; border-radius:8px; background: linear-gradient(120deg, rgba(47,224,184,.25), rgba(91,140,255,.25)); border:1px solid rgba(47,224,184,.35); }
.mock-mission h4{ margin:0 0 4px; font-size:.95rem; font-weight:600; }
.mock-mission p{ margin:0; font-size:.8rem; color:var(--text-dim); }

/* ---------- sections ---------- */
section{ position:relative; z-index:2; padding: 108px 0; }
section.tight{ padding: 72px 0; }
.section-head{ max-width: 680px; margin-bottom: 52px; }
.kicker{ font-size:.76rem; letter-spacing:.16em; text-transform:uppercase; color: var(--cyan); font-weight:600; margin-bottom:14px; display:block; }
h2.h-serif{
  font-family:'Fraunces',serif; font-weight:400; font-size: clamp(1.9rem, 3.2vw, 2.7rem);
  line-height:1.15; letter-spacing:-.01em; margin:0 0 16px;
}
.section-head p{ color:var(--text-dim); font-size:1.05rem; margin:0; }

.divider{ height:1px; background: linear-gradient(90deg, transparent, var(--card-border), transparent); }

/* ---------- reveal ----------
   Safe-by-default: content is fully visible unless JS explicitly arms it
   with .pre (added right before observing). If JS fails to run for any
   reason, nothing stays hidden — this is progressive enhancement, not a
   requirement for visibility. */
.reveal, .reveal-stagger > *{ opacity:1; transform:none; }
.reveal.pre{ opacity:0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.pre.in{ opacity:1; transform:none; }
.reveal-stagger.pre > *{ opacity:0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal-stagger.pre.in > *{ opacity:1; transform:none; }
.reveal-stagger.in > *:nth-child(1){ transition-delay: .04s; }
.reveal-stagger.in > *:nth-child(2){ transition-delay: .12s; }
.reveal-stagger.in > *:nth-child(3){ transition-delay: .20s; }
.reveal-stagger.in > *:nth-child(4){ transition-delay: .28s; }
.reveal-stagger.in > *:nth-child(5){ transition-delay: .36s; }
.reveal-stagger.in > *:nth-child(6){ transition-delay: .44s; }

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

.card{
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
}
.card::before{
  content:"";
  position:absolute; inset:-1px;
  background: radial-gradient(320px circle at var(--mx,50%) var(--my,0%), rgba(91,140,255,0.14), transparent 60%);
  opacity:0; transition: opacity .35s;
  pointer-events:none;
}
.card:hover::before{ opacity:1; }
.card:hover{ border-color: var(--card-border-hover); transform: translateY(-4px); }
.card .icon{
  width:44px; height:44px; border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, rgba(91,140,255,0.18), rgba(155,107,255,0.18));
  border: 1px solid rgba(255,255,255,0.08);
  margin-bottom:18px;
  color: #cdd8ff;
}
.card .icon svg{ width:22px; height:22px; }
.card h3{ font-size:1.08rem; margin: 0 0 10px; font-weight:600; }
.card p{ margin:0; color: var(--text-dim); font-size:.92rem; }
.card .num{ font-family:'Fraunces',serif; font-size:.85rem; color:var(--text-mute); margin-bottom:10px; display:block; }

.card-glass{
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
}

/* pill list */
.pill-list{ display:flex; flex-wrap:wrap; gap:10px; }
.pill{ font-size:.84rem; padding:9px 15px; border-radius:999px; border:1px solid var(--card-border); background: rgba(255,255,255,0.03); color: var(--text-dim); display:flex; align-items:center; gap:8px; }
.pill svg{ width:14px; height:14px; color: var(--teal); }

/* check list */
.check-list li{ display:flex; gap:12px; padding: 10px 0; border-bottom:1px solid rgba(255,255,255,0.05); font-size:.95rem; color: var(--text-dim); }
.check-list li:last-child{ border-bottom:none; }
.check-list svg{ width:18px; height:18px; color: var(--teal); flex-shrink:0; margin-top:2px; }
.check-list b{ color: var(--text); font-weight:600; }

/* steps timeline */
.steps{ display:grid; grid-template-columns: repeat(4,1fr); gap:20px; position:relative; }
.steps::before{ content:""; position:absolute; top:24px; left:6%; right:6%; height:1px; background: linear-gradient(90deg, transparent, var(--card-border) 15%, var(--card-border) 85%, transparent); z-index:0; }
.step{ position:relative; z-index:1; }
.step .badge{ width:48px; height:48px; border-radius:50%; display:flex; align-items:center; justify-content:center; font-family:'Fraunces',serif; font-weight:600; background: var(--bg-1); border:1px solid var(--card-border); margin-bottom:18px; }
.step h4{ margin:0 0 8px; font-size:1rem; }
.step p{ margin:0; color:var(--text-dim); font-size:.88rem; }

/* quality compare */
.compare{ display:grid; grid-template-columns: 1fr 1fr; gap:24px; }
.compare .weak{ border-color: rgba(255,107,107,0.25); }
.compare .weak .tag{ color:#ff8a8a; background: rgba(255,80,80,0.1); border-color: rgba(255,80,80,0.25); }
.compare .strong{ border-color: rgba(47,224,184,0.3); background: linear-gradient(180deg, rgba(47,224,184,0.06), rgba(91,140,255,0.03)); }
.compare .strong .tag{ color: var(--teal); background: rgba(47,224,184,0.1); border-color: rgba(47,224,184,0.3); }
.tag{ display:inline-block; font-size:.72rem; letter-spacing:.08em; text-transform:uppercase; padding:5px 12px; border-radius:999px; border:1px solid var(--card-border); margin-bottom:16px; }
.compare blockquote{ margin:0; font-family:'Fraunces',serif; font-size:1.12rem; font-style:italic; line-height:1.5; color:var(--text); }

/* logos / connectors marquee */
.marquee{ overflow:hidden; -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent); mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent); }
.marquee-track{ display:flex; gap:14px; width:max-content; animation: scroll 28s linear infinite; }
.marquee:hover .marquee-track{ animation-play-state: paused; }
@keyframes scroll{ from{ transform:translateX(0);} to{ transform:translateX(-50%);} }
.logo-chip{ display:flex; align-items:center; gap:8px; padding:12px 20px; border-radius:12px; background: rgba(255,255,255,0.03); border:1px solid var(--card-border); font-weight:600; font-size:.9rem; color:var(--text-dim); white-space:nowrap; }

/* grade bar */
.grade-bar{ display:flex; gap:12px; flex-wrap:wrap; }
.grade-cell{ flex:1; min-width:120px; border-radius:14px; border:1px solid var(--card-border); padding:16px; text-align:center; background: rgba(255,255,255,0.02); }
.grade-cell .g{ font-family:'Fraunces',serif; font-size:1.8rem; margin-bottom:4px; }
.grade-cell.a .g{ color: var(--teal); }
.grade-cell.b .g{ color: var(--blue); }
.grade-cell.c .g{ color: #e8c15a; }
.grade-cell.d .g{ color: #ff8a8a; }
.grade-cell .r{ font-size:.75rem; color:var(--text-mute); }

/* cta band */
.cta-band{
  border-radius: 28px;
  padding: 64px;
  text-align:center;
  position:relative;
  overflow:hidden;
  border: 1px solid var(--card-border);
  background: linear-gradient(160deg, rgba(91,140,255,0.10), rgba(155,107,255,0.06) 50%, rgba(47,224,184,0.06));
}
.cta-band h2{ margin-bottom:16px; }
.cta-band p{ color: var(--text-dim); max-width:52ch; margin:0 auto 32px; font-size:1.05rem; }
.cta-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* footer */
footer{ position:relative; z-index:2; border-top:1px solid var(--card-border); padding: 56px 0 34px; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom: 44px; }
.footer-brand p{ color:var(--text-mute); font-size:.88rem; max-width:34ch; margin-top:14px; }
.footer-col h5{ font-size:.78rem; text-transform:uppercase; letter-spacing:.1em; color:var(--text-mute); margin:0 0 16px; }
.footer-col a{ display:block; padding:6px 0; font-size:.9rem; color:var(--text-dim); transition:color .2s; }
.footer-col a:hover{ color:var(--text); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:26px; border-top:1px solid rgba(255,255,255,0.06); font-size:.82rem; color:var(--text-mute); flex-wrap:wrap; gap:12px; }
.footer-bottom .legal-links{ display:flex; gap:18px; }

/* form */
.form-card{ background: var(--card); border:1px solid var(--card-border); border-radius: var(--radius-lg); padding:40px; }
.field{ margin-bottom:20px; }
.field label{ display:block; font-size:.82rem; color:var(--text-dim); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; padding:13px 16px; border-radius:12px;
  background: rgba(255,255,255,0.03); border:1px solid var(--card-border);
  color: var(--text); font-family:inherit; font-size:.95rem;
  transition: border-color .2s, background .2s;
}
.field input:focus, .field select:focus, .field textarea:focus{
  outline:none; border-color: var(--blue); background: rgba(255,255,255,0.05);
}
.field textarea{ resize:vertical; min-height:110px; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }

/* badges for page hero (inner pages) */
.page-hero{ padding: 84px 0 56px; text-align:left; }
.page-hero h1{ font-family:'Fraunces',serif; font-weight:400; font-size: clamp(2.2rem,4vw,3.4rem); margin:0 0 18px; line-height:1.12; }
.page-hero p{ color:var(--text-dim); font-size:1.08rem; max-width:60ch; }

/* responsive */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns:1fr; }
  .grid-3, .grid-4{ grid-template-columns: 1fr 1fr; }
  .compare{ grid-template-columns:1fr; }
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .steps{ grid-template-columns: 1fr 1fr; }
  .steps::before{ display:none; }
}
@media (max-width: 720px){
  .nav-links{ display:none; }
  .container{ padding: 0 20px; }
  .grid-3, .grid-4, .grid-2{ grid-template-columns: 1fr; }
  .footer-grid{ grid-template-columns: 1fr; gap:28px; }
  .field-row{ grid-template-columns:1fr; }
  section{ padding: 72px 0; }
  .cta-band{ padding: 40px 24px; }
  h1.display{ font-size: 2.3rem; }
  .hero{ padding: 60px 0 40px; }
}