/* ================================================================
   QYVON AI — STYLES v3.0 FINAL (Neural Noir)
   Fonts: Syne (display) · DM Mono (mono) · Lexend (body)
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Mono:wght@300;400;500&family=Lexend:wght@300;400;500;600&display=swap');

/* ── VARIABLES ─────────────────────────────────────────────────── */
:root {
  --bg0:#020509; --bg1:#060d18; --bg2:#0c1829;
  --card:rgba(12,24,41,0.85); --card-h:rgba(18,34,58,0.95);
  --t1:#e8edf5; --t2:#7a92b4; --t3:#3d5275;
  --cyan:#00d9f5; --cyan-d:rgba(0,217,245,.12); --cyan-g:rgba(0,217,245,.28);
  --purple:#7c5af6; --purple-d:rgba(124,90,246,.12);
  --green:#34d399; --red:#f87171; --yellow:#fbbf24;
  --border:rgba(255,255,255,.06); --border-c:rgba(0,217,245,.22);
  --grad:linear-gradient(135deg,#00d9f5 0%,#7c5af6 100%);
  --glow:radial-gradient(ellipse at center,rgba(0,217,245,.14) 0%,transparent 70%);
  --r:12px; --rl:20px;
  --tr:all .25s cubic-bezier(.4,0,.2,1);
  --ff:'Lexend',sans-serif; --fm:'DM Mono',monospace; --fd:'Syne',sans-serif;
}
.light-mode {
  --bg0:#f0f4fc; --bg1:#e8eef8; --bg2:#dde5f5;
  --card:rgba(255,255,255,.9); --card-h:rgba(255,255,255,.98);
  --t1:#0d1b35; --t2:#3d5070; --t3:#7a92b4;
  --cyan:#0099c8; --cyan-d:rgba(0,153,200,.08); --cyan-g:rgba(0,153,200,.2);
  --purple:#5b3fd4; --border:rgba(0,0,0,.07); --border-c:rgba(0,153,200,.25);
  --grad:linear-gradient(135deg,#0099c8 0%,#5b3fd4 100%);
  --glow:radial-gradient(ellipse at center,rgba(0,153,200,.08) 0%,transparent 70%);
}

/* ── RESET ──────────────────────────────────────────────────────── */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--ff);background:var(--bg0);color:var(--t1);line-height:1.6;overflow-x:hidden;transition:background .4s,color .4s;-webkit-font-smoothing:antialiased}

/* ── BACKGROUNDS ────────────────────────────────────────────────── */
.dot-bg{position:fixed;inset:0;z-index:0;pointer-events:none;background-image:radial-gradient(circle,var(--t3) 1px,transparent 1px);background-size:32px 32px;opacity:.18;transition:opacity .4s}
.light-mode .dot-bg{opacity:.07}
.noise{position:fixed;inset:0;z-index:0;pointer-events:none;opacity:.025;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:200px}

/* ── LAYOUT ─────────────────────────────────────────────────────── */
.container{max-width:1180px;margin:0 auto;padding:0 2rem;position:relative;z-index:1}
section{padding:7rem 0}
h1,h2,h3,h4{font-family:var(--fd);font-weight:700;line-height:1.15}
.gradient-text{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.mono{font-family:var(--fm)}

/* ── NAVBAR ─────────────────────────────────────────────────────── */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;padding:0 2rem;background:rgba(2,5,9,.88);backdrop-filter:blur(20px) saturate(1.5);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:var(--tr)}
.light-mode .navbar{background:rgba(240,244,252,.9)}
.nav-inner{max-width:1180px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;height:64px}

/* NAV LOGO */
.nav-logo{text-decoration:none;display:flex;align-items:center;gap:0.45rem;flex-shrink:0}
.nav-logo-icon{height:20px;width:20px;object-fit:contain;display:block;flex-shrink:0}
.nav-logo-text{font-family:var(--fd);font-weight:800;font-size:0.95rem;letter-spacing:-.01em;color:var(--t1);white-space:nowrap;line-height:1}
.nav-logo:hover{opacity:.82}

/* NAV LINKS */
.nav-links{display:flex;list-style:none;gap:.25rem;align-items:center}
.nav-links a{color:var(--t2);text-decoration:none;font-size:.85rem;font-weight:500;padding:.45rem .8rem;border-radius:8px;transition:var(--tr)}
.nav-links a:hover{color:var(--t1);background:var(--cyan-d)}

/* NAV ACTIONS */
.nav-actions{display:flex;gap:.6rem;align-items:center}
.btn-icon{width:36px;height:36px;border-radius:8px;border:1px solid var(--border);background:var(--card);color:var(--t2);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-family:var(--fm);font-weight:600;transition:var(--tr)}
.btn-icon:hover{border-color:var(--border-c);color:var(--cyan)}

/* HAMBURGER */
.hamburger{display:none;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;padding:8px;background:var(--card);border:1px solid var(--border);border-radius:8px;cursor:pointer;transition:var(--tr)}
.hamburger span{display:block;width:100%;height:2px;background:var(--t2);border-radius:2px;transition:all .3s ease;transform-origin:center}
.hamburger:hover span{background:var(--cyan)}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0;transform:scaleX(0)}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── BUTTONS ────────────────────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.75rem;border-radius:var(--r);font-family:var(--ff);font-size:.9rem;font-weight:600;text-decoration:none;border:none;cursor:pointer;transition:var(--tr);letter-spacing:.01em}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 4px 20px var(--cyan-g)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px var(--cyan-g)}
.btn-ghost{background:transparent;color:var(--t2);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--border-c);color:var(--t1)}
.btn-full{width:100%;justify-content:center}
.nav-cta{padding:.55rem 1.1rem !important;font-size:.82rem !important}

/* ── HERO ───────────────────────────────────────────────────────── */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;text-align:center;padding:9rem 2rem 5rem;position:relative;overflow:hidden}
.hero-glow{position:absolute;width:700px;height:450px;background:var(--glow);top:50%;left:50%;transform:translate(-50%,-60%);pointer-events:none}
.hero-content{max-width:860px;position:relative;z-index:1}

.hero-badge{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--fm);font-size:.72rem;font-weight:500;color:var(--cyan);letter-spacing:.1em;text-transform:uppercase;border:1px solid var(--border-c);border-radius:100px;padding:.4rem 1rem;margin-bottom:2.5rem;background:var(--cyan-d);animation:badgePulse 3s ease-in-out infinite}
.hero-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan);animation:dotBlink 1.5s ease-in-out infinite}
@keyframes badgePulse{0%,100%{box-shadow:0 0 0 0 var(--cyan-g)}50%{box-shadow:0 0 0 5px transparent}}
@keyframes dotBlink{0%,100%{opacity:1}50%{opacity:.3}}

.hero-title{font-size:clamp(3rem,9vw,5.5rem);font-weight:800;letter-spacing:-.035em;line-height:1.05;margin-bottom:1.75rem}
.hero-subtitle{font-size:clamp(1rem,2.5vw,1.15rem);color:var(--t2);max-width:580px;margin:0 auto 3rem;font-weight:300;line-height:1.7}
.hero-subtitle strong{color:var(--t1);font-weight:600}

.hero-stats{display:flex;justify-content:center;gap:4rem;margin-bottom:3.5rem;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-value{display:block;font-family:var(--fd);font-size:2.5rem;font-weight:800;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.stat-label{display:block;font-family:var(--fm);font-size:.68rem;color:var(--t3);letter-spacing:.12em;text-transform:uppercase;margin-top:.4rem}

.hero-cta{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}

.scroll-hint{position:absolute;bottom:2.5rem;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:.5rem;font-family:var(--fm);font-size:.65rem;color:var(--t3);letter-spacing:.1em;text-transform:uppercase;animation:floatHint 2.5s ease-in-out infinite}
.scroll-arrow{font-size:1rem;color:var(--cyan)}
@keyframes floatHint{0%,100%{transform:translateX(-50%) translateY(0)}50%{transform:translateX(-50%) translateY(-6px)}}

/* ── SECTIONS ───────────────────────────────────────────────────── */
.section-header{text-align:center;max-width:640px;margin:0 auto 5rem}
.section-tag{font-family:var(--fm);font-size:.68rem;font-weight:500;color:var(--cyan);letter-spacing:.15em;text-transform:uppercase;margin-bottom:1rem;display:block}
.section-title{font-size:clamp(2rem,5vw,3rem);font-weight:800;letter-spacing:-.03em;margin-bottom:1rem}
.section-subtitle{color:var(--t2);font-size:1.05rem;font-weight:300}

/* ── MODELS ─────────────────────────────────────────────────────── */
.models{background:var(--bg1)}
.models-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem}
.model-card{background:var(--card);border:1px solid var(--border);border-radius:var(--rl);padding:2rem;position:relative;overflow:hidden;transition:var(--tr);backdrop-filter:blur(12px)}
.model-card::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);opacity:0;transition:opacity .3s}
.model-card:hover{border-color:var(--border-c);box-shadow:0 0 30px var(--cyan-g);transform:translateY(-4px)}
.model-card:hover::before{opacity:1}
.model-card.featured{border-color:var(--border-c);background:linear-gradient(135deg,var(--card) 0%,rgba(124,90,246,.05) 100%)}
.model-badge{font-family:var(--fm);font-size:.63rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;padding:.28rem .7rem;border-radius:100px;display:inline-block;margin-bottom:1.5rem}
.badge-live{background:var(--cyan-d);color:var(--cyan);border:1px solid var(--border-c)}
.badge-dev{background:var(--purple-d);color:var(--purple);border:1px solid rgba(124,90,246,.25)}
.model-icon{font-size:2.25rem;margin-bottom:1.25rem;display:block;line-height:1}
.model-card h3{font-size:1.25rem;font-weight:700;margin-bottom:.5rem;letter-spacing:-.02em}
.model-card p{color:var(--t2);font-size:.875rem;margin-bottom:1.25rem;font-weight:300}
.model-specs{list-style:none;display:flex;flex-direction:column;gap:.5rem}
.model-specs li{font-family:var(--fm);font-size:.76rem;color:var(--t2);display:flex;align-items:center;gap:.5rem}
.spec-dot{width:5px;height:5px;border-radius:50%;background:var(--cyan);flex-shrink:0}
.spec-dot.purple{background:var(--purple)}
.progress-wrap{margin-top:1.5rem}
.progress-label{font-family:var(--fm);font-size:.68rem;color:var(--t3);letter-spacing:.08em;text-transform:uppercase;display:flex;justify-content:space-between;margin-bottom:.5rem}
.progress-bar{height:4px;background:var(--border);border-radius:100px;overflow:hidden}
.progress-fill{height:100%;border-radius:100px;background:var(--grad);animation:progressGlow 2s ease-in-out infinite alternate}
@keyframes progressGlow{from{box-shadow:0 0 4px var(--cyan-g)}to{box-shadow:0 0 10px var(--cyan-g)}}

/* ── FEATURES ───────────────────────────────────────────────────── */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem}
.feature-card{padding:1.75rem;border:1px solid var(--border);border-radius:var(--r);background:var(--card);transition:var(--tr)}
.feature-card:hover{border-color:var(--border-c);background:var(--card-h);transform:translateY(-3px)}
.feature-icon-wrap{width:44px;height:44px;border-radius:11px;background:var(--cyan-d);border:1px solid var(--border-c);display:flex;align-items:center;justify-content:center;font-size:1.15rem;margin-bottom:1.25rem}
.feature-card h3{font-size:.975rem;font-weight:700;margin-bottom:.5rem;letter-spacing:-.01em}
.feature-card p{color:var(--t2);font-size:.85rem;font-weight:300;line-height:1.6}

/* ── ACCESS FORM ────────────────────────────────────────────────── */
.access{background:var(--bg1)}
.access-layout{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start}
.access-form{background:var(--card);border:1px solid var(--border);border-radius:var(--rl);padding:2.5rem;backdrop-filter:blur(12px)}
.form-group{margin-bottom:1.25rem}
.form-group label{display:block;font-family:var(--fm);font-size:.67rem;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--t2);margin-bottom:.55rem}
.form-group input,.form-group textarea,.form-group select{width:100%;background:var(--bg0);border:1px solid var(--border);border-radius:var(--r);color:var(--t1);font-family:var(--ff);font-size:.875rem;padding:.8rem 1rem;transition:var(--tr);outline:none;-webkit-appearance:none;appearance:none}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{border-color:var(--cyan);box-shadow:0 0 0 3px var(--cyan-d)}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--t3)}
.form-group textarea{resize:vertical;min-height:110px}
.form-group select{background:var(--bg0);cursor:pointer}
.form-group select option{background:var(--bg1)}

/* CHECKBOX */
.checkbox-group{display:flex;align-items:flex-start;gap:.75rem}
.checkbox-group input[type="checkbox"]{appearance:none;-webkit-appearance:none;width:20px;height:20px;flex-shrink:0;margin-top:1px;background:var(--bg0);border:2px solid var(--border-c);border-radius:5px;cursor:pointer;transition:all .2s;position:relative;display:grid;place-content:center}
.checkbox-group input[type="checkbox"]::before{content:'';width:10px;height:10px;clip-path:polygon(14% 44%,0 65%,50% 100%,100% 16%,80% 0%,43% 62%);transform:scale(0);background:var(--cyan);transition:transform .15s ease-in-out}
.checkbox-group input[type="checkbox"]:checked{background:var(--cyan-d);border-color:var(--cyan);box-shadow:0 0 0 3px var(--cyan-d)}
.checkbox-group input[type="checkbox"]:checked::before{transform:scale(1)}
.checkbox-label{font-size:.84rem;color:var(--t2);line-height:1.5;cursor:pointer}
.checkbox-label a{color:var(--cyan);text-decoration:none}
.checkbox-label a:hover{text-decoration:underline}

.form-message{margin-top:1rem;padding:.75rem 1rem;border-radius:var(--r);font-family:var(--fm);font-size:.8rem;display:none}
.form-message.success{background:var(--cyan-d);color:var(--cyan);border:1px solid var(--border-c);display:block}
.form-message.error{background:rgba(248,113,113,.08);color:var(--red);border:1px solid rgba(248,113,113,.25);display:block}

/* ACCESS SIDEBAR */
.access-sidebar{display:flex;flex-direction:column;gap:1.5rem}
.process-card{background:var(--card);border:1px solid var(--border);border-radius:var(--rl);padding:2rem}
.process-card h3{font-family:var(--fm);font-size:.72rem;color:var(--cyan);letter-spacing:.1em;text-transform:uppercase;margin-bottom:1.5rem}
.process-steps{display:flex;flex-direction:column;gap:1rem}
.step{display:flex;align-items:center;gap:1rem;font-size:.85rem;color:var(--t2)}
.step-num{width:26px;height:26px;border-radius:50%;background:var(--cyan-d);border:1px solid var(--border-c);display:flex;align-items:center;justify-content:center;font-family:var(--fm);font-size:.63rem;color:var(--cyan);flex-shrink:0;font-weight:600}
.spots-card{background:var(--card);border:1px solid var(--border-c);border-radius:var(--rl);padding:2rem;display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}
.spot-stat{text-align:center}
.spot-num{display:block;font-family:var(--fd);font-size:2.5rem;font-weight:800;letter-spacing:-.03em;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.spot-label{font-family:var(--fm);font-size:.63rem;color:var(--t3);letter-spacing:.1em;text-transform:uppercase;margin-top:.25rem;display:block}

/* ── CONTACT ────────────────────────────────────────────────────── */
.contact-grid{display:grid;grid-template-columns:1fr 1.5fr;gap:4rem;align-items:start}
.contact-info-block{display:flex;flex-direction:column;gap:1.75rem}
.contact-item h4{font-family:var(--fm);font-size:.63rem;letter-spacing:.15em;text-transform:uppercase;color:var(--cyan);margin-bottom:.4rem}
.contact-item p,.contact-item a{color:var(--t2);text-decoration:none;font-size:.95rem}
.contact-item a:hover{color:var(--t1)}
.contact-form{background:var(--card);border:1px solid var(--border);border-radius:var(--rl);padding:2.5rem}

/* ── FOOTER ─────────────────────────────────────────────────────── */
.footer{background:var(--bg1);border-top:1px solid var(--border);padding:4rem 0 2rem}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3rem}
.footer-brand p{color:var(--t2);font-size:.85rem;margin-top:1rem;max-width:200px;font-weight:300;line-height:1.7}
.footer-col h4{font-family:var(--fm);font-size:.63rem;letter-spacing:.15em;text-transform:uppercase;color:var(--t3);margin-bottom:1.25rem}
.footer-col a{display:block;color:var(--t2);text-decoration:none;font-size:.85rem;margin-bottom:.75rem;transition:color .2s}
.footer-col a:hover{color:var(--t1)}
.footer-bottom{border-top:1px solid var(--border);padding-top:2rem;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}
.footer-bottom p{font-family:var(--fm);font-size:.72rem;color:var(--t3)}

/* ── COOKIE BANNER ──────────────────────────────────────────────── */
.cookie-banner{position:fixed;bottom:1.5rem;left:50%;transform:translateX(-50%) translateY(0);z-index:2000;max-width:500px;width:calc(100% - 3rem);background:var(--bg2);border:1px solid var(--border-c);border-radius:var(--rl);padding:1.5rem;backdrop-filter:blur(20px);box-shadow:0 20px 40px rgba(0,0,0,.4);opacity:0;visibility:hidden;pointer-events:none;transition:opacity .4s ease,visibility .4s ease,transform .4s ease;transform:translateX(-50%) translateY(20px)}
.cookie-banner.show{opacity:1;visibility:visible;pointer-events:all;transform:translateX(-50%) translateY(0)}
.cookie-banner.hide{opacity:0;visibility:hidden;pointer-events:none;transform:translateX(-50%) translateY(20px)}
.cookie-banner p{font-size:.85rem;color:var(--t2);margin-bottom:1.25rem;line-height:1.6}
.cookie-banner a{color:var(--cyan)}
.cookie-actions{display:flex;gap:.75rem}
.cookie-actions .btn{padding:.6rem 1.3rem;font-size:.82rem}

/* ── FLOATING CTA ───────────────────────────────────────────────── */
.floating-cta{position:fixed;bottom:2rem;right:2rem;z-index:900;opacity:0;visibility:hidden;pointer-events:none;transform:translateY(20px) scale(.9);transition:all .4s cubic-bezier(.34,1.56,.64,1)}
.floating-cta.show{opacity:1;visibility:visible;pointer-events:all;transform:translateY(0) scale(1)}
.floating-cta .btn{box-shadow:0 8px 28px var(--cyan-g);font-size:.82rem;padding:.7rem 1.4rem}

/* ── PAGE HERO (subpages) ───────────────────────────────────────── */
.page-hero{padding:9rem 2rem 5rem;text-align:center;background:var(--bg1);border-bottom:1px solid var(--border)}
.page-hero h1{font-size:clamp(2rem,6vw,3.5rem);font-weight:800;margin-bottom:.75rem}
.page-hero p{color:var(--t2);font-family:var(--fm);font-size:.82rem;letter-spacing:.05em}

/* ── ANIMATIONS ─────────────────────────────────────────────────── */
.fade-up{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.stagger>*{opacity:0;transform:translateY(20px);transition:opacity .5s ease,transform .5s ease}
.stagger.visible>*:nth-child(1){opacity:1;transform:none;transition-delay:.05s}
.stagger.visible>*:nth-child(2){opacity:1;transform:none;transition-delay:.15s}
.stagger.visible>*:nth-child(3){opacity:1;transform:none;transition-delay:.25s}
.stagger.visible>*:nth-child(4){opacity:1;transform:none;transition-delay:.35s}
.stagger.visible>*:nth-child(5){opacity:1;transform:none;transition-delay:.45s}
.stagger.visible>*:nth-child(6){opacity:1;transform:none;transition-delay:.55s}

/* ── MOBILE MENU ────────────────────────────────────────────────── */
@media(max-width:900px){
  .hamburger{display:flex}
  .nav-cta{display:none}
  .nav-links{display:flex !important;position:fixed;top:64px;left:0;right:0;background:rgba(6,13,24,.97);backdrop-filter:blur(20px);flex-direction:column;gap:0;border-bottom:1px solid var(--border);transform:translateY(-110%);transition:transform .35s cubic-bezier(.4,0,.2,1);z-index:999;padding:.5rem 0}
  .light-mode .nav-links{background:rgba(240,244,252,.97)}
  .nav-links.open{transform:translateY(0)}
  .nav-links li{width:100%}
  .nav-links a{display:block;padding:1rem 2rem;font-size:.95rem;border-radius:0;border-bottom:1px solid var(--border)}
  .nav-links li:last-child a{border-bottom:none}
  .access-layout{grid-template-columns:1fr;gap:2.5rem}
  .contact-grid{grid-template-columns:1fr;gap:2.5rem}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){
  .hero-stats{gap:2.5rem}
  .footer-grid{grid-template-columns:1fr}
  .models-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .access-form,.process-card,.contact-form{padding:1.5rem}
  .floating-cta{bottom:1.5rem;right:1rem;left:1rem}
  .floating-cta .btn{width:100%;justify-content:center}
}