/* =========================================================================
   ATIDE — site vitrine. Design system.
   ========================================================================= */
:root{
  --bg:#070a16;
  --bg-2:#0a0f20;
  --ink:#eaf0fb;
  --muted:#9fb0d0;
  --muted-2:#6f7fa6;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(255,255,255,.035);
  --glass-2:rgba(255,255,255,.06);
  --indigo:#818cf8;
  --cyan:#22d3ee;
  --violet:#a855f7;
  --grad:linear-gradient(110deg,#818cf8 0%,#22d3ee 50%,#a855f7 100%);
  --grad-soft:linear-gradient(135deg,rgba(129,140,248,.18),rgba(34,211,238,.12),rgba(168,85,247,.16));
  --radius:18px;
  --radius-lg:26px;
  --maxw:1140px;
  --shadow:0 30px 80px -30px rgba(0,0,0,.7);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --display:'Space Grotesk',var(--font);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);background:var(--bg);color:var(--ink);
  line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{font-family:var(--display);font-weight:600;line-height:1.1;letter-spacing:-.02em;margin:0}
p{margin:0}
img,svg{display:block;max-width:100%}
::selection{background:rgba(129,140,248,.35);color:#fff}

/* ---------- Background décor ---------- */
.bg-aurora{position:fixed;inset:0;z-index:-2;overflow:hidden;filter:blur(10px)}
.blob{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;will-change:transform}
.blob-1{width:46vw;height:46vw;left:-12vw;top:-10vw;background:radial-gradient(circle at 30% 30%,#4f46e5,transparent 70%);animation:float1 22s ease-in-out infinite}
.blob-2{width:42vw;height:42vw;right:-12vw;top:8vw;background:radial-gradient(circle at 60% 40%,#0891b2,transparent 70%);animation:float2 26s ease-in-out infinite}
.blob-3{width:40vw;height:40vw;left:25vw;bottom:-18vw;background:radial-gradient(circle at 50% 50%,#9333ea,transparent 70%);opacity:.4;animation:float1 30s ease-in-out infinite reverse}
@keyframes float1{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(4vw,3vw) scale(1.08)}}
@keyframes float2{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-5vw,2vw) scale(1.12)}}
.bg-grid{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 0%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 0%,transparent 75%);
  opacity:.5}

/* ---------- Layout helpers ---------- */
main{display:block}
.section{max-width:var(--maxw);margin:0 auto;padding:clamp(64px,9vw,120px) 22px}
.section-head{max-width:760px;margin:0 auto clamp(40px,6vw,64px);text-align:center}
.eyebrow{display:inline-block;font-family:var(--display);font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--cyan);margin-bottom:16px;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.section-head h2{font-size:clamp(1.8rem,4.4vw,2.9rem)}
.lead{margin-top:18px;color:var(--muted);font-size:clamp(1rem,1.6vw,1.15rem)}
.lead em{color:var(--ink);font-style:normal}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;
  max-width:1280px;margin:0 auto;padding:16px 22px;
  backdrop-filter:saturate(140%) blur(14px);-webkit-backdrop-filter:saturate(140%) blur(14px)}
.nav.scrolled{background:rgba(7,10,22,.72);border-bottom:1px solid var(--line)}
.nav-brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:700;font-size:1.18rem;letter-spacing:.04em}
.nav-brand span{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.logo-mark{filter:drop-shadow(0 4px 14px rgba(99,102,241,.45))}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{padding:9px 14px;border-radius:11px;color:var(--muted);font-size:.94rem;font-weight:500;transition:.2s}
.nav-links a:hover{color:var(--ink);background:var(--glass-2)}
.nav-cta{color:var(--ink)!important;background:var(--grad-soft);border:1px solid var(--line-strong)}
.nav-cta:hover{box-shadow:0 0 0 1px var(--line-strong),0 8px 24px -10px rgba(99,102,241,.7)}
.nav-burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.25s}
.nav-burger[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-burger[aria-expanded=true] span:nth-child(2){opacity:0}
.nav-burger[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 24px;border-radius:14px;font-weight:600;
  font-size:.98rem;cursor:pointer;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s;font-family:var(--font)}
.btn .arrow{transition:transform .25s}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--grad);color:#0a0f20;box-shadow:0 12px 34px -12px rgba(34,211,238,.7)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 44px -12px rgba(129,140,248,.8)}
.btn-ghost{background:var(--glass-2);color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{transform:translateY(-2px);background:rgba(255,255,255,.1)}
.btn-block{width:100%;justify-content:center;margin-top:8px}

/* ---------- HERO ---------- */
.hero{position:relative;max-width:var(--maxw);margin:0 auto;padding:clamp(56px,10vw,130px) 22px clamp(40px,6vw,80px);text-align:center}
.hero-inner{position:relative;z-index:2;max-width:880px;margin:0 auto}
.pill{display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;
  border:1px solid var(--line-strong);background:var(--glass);font-size:.84rem;color:var(--muted);margin-bottom:30px}
.pill-dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(34,211,238,.18);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero-title{font-size:clamp(2.4rem,7vw,4.6rem);letter-spacing:-.03em}
.hero-title .grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-sub{max-width:620px;margin:26px auto 0;color:var(--muted);font-size:clamp(1.02rem,1.9vw,1.2rem)}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:38px}
.hero-stats{display:flex;gap:clamp(20px,5vw,56px);justify-content:center;flex-wrap:wrap;margin:56px 0 0;padding:0}
.hero-stats div{text-align:center}
.hero-stats dt{font-family:var(--display);font-size:clamp(1.8rem,4vw,2.4rem);font-weight:700;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero-stats dd{margin:4px 0 0;color:var(--muted-2);font-size:.86rem;max-width:140px}
.hero-glow{position:absolute;left:50%;top:30%;width:680px;height:340px;transform:translateX(-50%);
  background:radial-gradient(ellipse at center,rgba(99,102,241,.32),transparent 65%);filter:blur(30px);z-index:1;pointer-events:none}

/* ---------- Marquee ---------- */
.marquee{overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:18px 0;mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee-track{display:flex;align-items:center;gap:26px;white-space:nowrap;width:max-content;animation:scroll 38s linear infinite}
.marquee-track span{font-family:var(--display);font-size:.95rem;color:var(--muted);font-weight:500}
.marquee-track .sep{color:var(--violet);opacity:.7}
@keyframes scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ---------- Cards ---------- */
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-lg);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.cards-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{padding:32px 30px;border-radius:var(--radius);position:relative;overflow:hidden;transition:transform .3s,border-color .3s}
.card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:var(--grad-soft);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:.3s}
.card:hover{transform:translateY(-6px);border-color:var(--line-strong)}
.card:hover::before{opacity:1}
.card-ico{width:54px;height:54px;display:grid;place-items:center;font-size:1.55rem;border-radius:15px;
  background:var(--grad-soft);border:1px solid var(--line-strong);margin-bottom:20px}
.card h3{font-size:1.28rem;margin-bottom:12px}
.card p{color:var(--muted);font-size:.97rem}

/* ---------- Products ---------- */
.product{display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(28px,5vw,60px);align-items:center;
  margin-top:clamp(40px,6vw,72px)}
.product--rev .product-media{order:2}
.product-media{position:relative;aspect-ratio:4/3;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line-strong);box-shadow:var(--shadow);display:grid;place-items:center;padding:24px}
.product-media--opti{background:linear-gradient(135deg,#0b2740,#0a1830 60%,#071124)}
.product-media--simha{background:linear-gradient(135deg,#241033,#1a0f2e 55%,#0e0a20)}
.product-chip{position:absolute;top:18px;left:18px;font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink);background:rgba(0,0,0,.35);border:1px solid var(--line-strong);padding:6px 12px;border-radius:999px}
.product-mock{width:100%;max-width:340px;background:rgba(8,12,24,.72);border:1px solid var(--line-strong);
  border-radius:16px;padding:20px;backdrop-filter:blur(6px)}
.dotrow{display:flex;gap:7px;margin-bottom:18px}
.dotrow i{width:11px;height:11px;border-radius:50%;background:var(--line-strong)}
.dotrow i:nth-child(1){background:#ff5f57}.dotrow i:nth-child(2){background:#febc2e}.dotrow i:nth-child(3){background:#28c840}
.mock-line{height:11px;border-radius:6px;background:linear-gradient(90deg,var(--glass-2),var(--line));margin-bottom:13px}
.mock-line.w70{width:70%}.mock-line.w90{width:90%}.mock-line.w50{width:50%}.mock-line.w60{width:60%}.mock-line.w85{width:85%}.mock-line.w40{width:40%}
.mock-badge{margin-top:18px;display:inline-block;font-size:.78rem;font-weight:600;padding:8px 13px;border-radius:10px;
  background:linear-gradient(120deg,rgba(34,211,238,.22),rgba(129,140,248,.22));border:1px solid var(--line-strong);color:#bfe9f5}
.mock-badge--alt{background:linear-gradient(120deg,rgba(168,85,247,.25),rgba(236,72,153,.18));color:#f0d9ff}
.product-body h3{font-size:clamp(1.7rem,3.4vw,2.3rem)}
.product-tag{margin:8px 0 16px;color:var(--cyan);font-family:var(--display);font-size:1rem}
.product-body>p{color:var(--muted)}
.feat{list-style:none;padding:0;margin:22px 0;display:grid;gap:11px}
.feat li{position:relative;padding-left:30px;color:var(--ink);font-size:.96rem}
.feat li::before{content:"";position:absolute;left:0;top:7px;width:16px;height:16px;border-radius:5px;background:var(--grad);
  box-shadow:0 0 12px rgba(34,211,238,.5)}
.feat li::after{content:"✓";position:absolute;left:3px;top:2px;font-size:.7rem;color:#0a0f20;font-weight:800}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line-strong);padding-bottom:3px;transition:.2s}
.link-arrow:hover{gap:12px;color:var(--cyan)}
.link-arrow .arrow{transition:transform .25s}

/* ---------- Steps ---------- */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.steps li{padding:28px 24px;border-radius:var(--radius);border:1px solid var(--line);background:var(--glass);position:relative}
.step-n{font-family:var(--display);font-weight:700;font-size:1.6rem;
  background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.steps h4{font-size:1.08rem;margin:14px 0 8px}
.steps p{color:var(--muted);font-size:.92rem}

/* ---------- Company ---------- */
.company{display:grid;grid-template-columns:1.3fr .9fr;gap:clamp(28px,5vw,56px);align-items:center;
  padding:clamp(32px,5vw,56px);max-width:var(--maxw);margin:0 auto}
.company-text h2{font-size:clamp(1.7rem,4vw,2.6rem);margin:14px 0 18px}
.company-text>p{color:var(--muted)}
.company-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:28px 0}
.company-grid div{padding:16px 18px;border-radius:14px;background:var(--glass-2);border:1px solid var(--line)}
.company-grid span{display:block;font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-bottom:6px}
.company-grid strong{font-family:var(--display);font-size:1.02rem}
.company-card{aspect-ratio:1;border-radius:var(--radius-lg);background:var(--grad-soft);border:1px solid var(--line-strong);
  display:grid;place-content:center;text-align:center;gap:20px;padding:30px;position:relative;overflow:hidden}
.company-card::after{content:"";position:absolute;inset:-40%;background:conic-gradient(from 0deg,transparent,rgba(34,211,238,.18),transparent 30%);animation:spin 14s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.company-logo{position:relative;z-index:2;display:grid;place-items:center}
.company-logo .logo-mark{width:64px;height:64px}
.company-claim{position:relative;z-index:2;font-family:var(--display);font-size:1.15rem;line-height:1.4}

/* ---------- Contact ---------- */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(28px,5vw,52px);
  padding:clamp(32px,5vw,52px);max-width:var(--maxw);margin:0 auto}
.contact-intro h2{font-size:clamp(1.7rem,4vw,2.6rem);margin:14px 0 16px}
.contact-intro>p{color:var(--muted)}
.contact-meta{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:14px}
.contact-meta li{display:flex;align-items:center;gap:12px;color:var(--ink)}
.contact-meta span{width:34px;height:34px;display:grid;place-items:center;border-radius:10px;background:var(--glass-2);border:1px solid var(--line)}
.contact-meta a:hover{color:var(--cyan)}
.contact-form{display:grid;gap:16px}
.row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:grid;gap:7px}
.field label{font-size:.85rem;color:var(--muted);font-weight:500}
.field-input{width:100%;padding:13px 15px;border-radius:12px;background:rgba(7,10,22,.6);border:1px solid var(--line-strong);
  color:var(--ink);font-family:var(--font);font-size:.96rem;transition:.2s;outline:none}
.field-input::placeholder{color:var(--muted-2)}
.field-input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.16);background:rgba(7,10,22,.85)}
textarea.field-input{resize:vertical;min-height:120px}
.err{color:#ff8a9b;font-size:.82rem}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.flash{padding:13px 16px;border-radius:12px;font-size:.92rem;border:1px solid var(--line-strong)}
.flash-success{background:rgba(34,197,94,.14);border-color:rgba(34,197,94,.4);color:#bbf7d0}
.flash-error{background:rgba(244,63,94,.14);border-color:rgba(244,63,94,.4);color:#fecdd3}
.form-fine{color:var(--muted-2);font-size:.8rem;text-align:center;margin-top:4px}

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);margin-top:40px;background:rgba(7,10,22,.5)}
.footer-top{max-width:var(--maxw);margin:0 auto;padding:56px 22px 40px;display:grid;grid-template-columns:1.4fr 2fr;gap:40px}
.footer-brand p{color:var(--muted);font-size:.94rem;margin-top:14px;max-width:280px}
.footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-nav h5{font-family:var(--display);font-size:.82rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);margin-bottom:14px}
.footer-nav a{display:block;color:var(--muted);font-size:.93rem;padding:5px 0;transition:.2s}
.footer-nav a:hover{color:var(--ink)}
.footer-bottom{max-width:var(--maxw);margin:0 auto;padding:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--muted-2);font-size:.85rem}

/* ---------- Legal page ---------- */
.legal-wrap{max-width:780px;margin:0 auto;padding:40px 22px 80px}
.legal-wrap h1{font-size:clamp(2rem,5vw,2.8rem);margin:18px 0 30px}
.back-link{display:inline-block;color:var(--muted);font-size:.92rem;margin:8px 0;transition:.2s}
.back-link:hover{color:var(--cyan)}
.legal-block{padding:26px 28px;margin-bottom:18px}
.legal-block h2{font-size:1.2rem;margin-bottom:12px;color:var(--cyan)}
.legal-block p{color:var(--muted)}
.legal-block ul{margin:10px 0 0;padding-left:20px;color:var(--muted)}
.legal-block li{margin:6px 0}
.legal-block a{color:var(--cyan)}
.legal-foot{color:var(--muted-2);font-size:.85rem;margin:20px 0}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .cards-3{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .product,.product--rev .product-media{grid-template-columns:1fr;order:0}
  .product-media{order:0!important}
  .company,.contact{grid-template-columns:1fr}
  .company-card{max-width:340px}
  .footer-top{grid-template-columns:1fr}
}
@media (max-width:680px){
  .nav-links{position:fixed;inset:64px 14px auto 14px;flex-direction:column;align-items:stretch;gap:6px;
    padding:14px;border-radius:18px;background:rgba(10,15,32,.96);border:1px solid var(--line-strong);
    backdrop-filter:blur(20px);transform:translateY(-12px);opacity:0;pointer-events:none;transition:.25s;box-shadow:var(--shadow)}
  .nav-links.open{transform:none;opacity:1;pointer-events:auto}
  .nav-links a{padding:13px 16px}
  .nav-burger{display:flex}
  .cards-2,.cards-3,.row-2,.company-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .hero-stats{gap:28px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important}
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}