/* ==========================================================================
   Visiyon Studio — marketing site + generator app
   Same flat, borderless language as OpenChat/Tags: pure black canvas,
   elevation via soft shadows instead of hairlines. Accent is a
   violet→cyan gradient to give Studio its own creative-tool identity.
   ========================================================================== */

:root{
  --bg:#000000;
  --panel:#0a0a0a;
  --panel-2:#111111;
  --panel-3:#161616;
  --text:#ffffff;
  --text-2:rgba(255,255,255,.62);
  --text-3:rgba(255,255,255,.38);
  --accent:#8b5cf6;
  --accent-2:#38bdf8;
  --danger:#ff6b5e;
  --radius:16px;
  --radius-sm:10px;
  --font-display:'Space Grotesk','Inter',-apple-system,'Segoe UI',sans-serif;
  --font-body:'Inter',-apple-system,'Segoe UI',sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,monospace;
  --max:1120px;
  --max-narrow:760px;
  --ease:cubic-bezier(.16,.8,.24,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;min-height:100vh;background:var(--bg);color:var(--text);
  font-family:var(--font-body);-webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;line-height:1.5;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,p{margin:0;}
*{border:0;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

.wrap{max-width:var(--max);margin:0 auto;padding:0 24px;}
.wrap-narrow{max-width:var(--max-narrow);margin:0 auto;padding:0 24px;}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:4px;}

.noise-overlay{
  position:fixed;inset:0;pointer-events:none;z-index:1;opacity:.035;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:20;padding:18px 0;background:rgba(0,0,0,.72);backdrop-filter:blur(14px);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--font-display);font-weight:800;font-size:17px;letter-spacing:-.01em;}
.brand-mark{display:inline-flex;color:var(--text);}
.brand-logo{height:20px;width:auto;display:block;}
.brand-word-accent{color:var(--text-3);font-weight:600;}

.main-nav{display:flex;align-items:center;gap:28px;}
.main-nav a{font-size:14px;color:var(--text-2);transition:color .15s;}
.main-nav a:hover,.main-nav a.active{color:var(--text);}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;border-radius:999px;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#000;font-weight:700;font-size:13.5px;
  transition:opacity .15s;
}
.nav-cta:hover{opacity:.88;}
.nav-toggle{display:none;width:36px;height:36px;border-radius:10px;background:var(--panel-2);align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle svg{width:18px;height:18px;}

/* ---------- hero ---------- */
.hero{position:relative;overflow:clip;padding:72px 0 56px;}
.hero-glow{
  position:absolute;inset:-20% -10% auto -10%;height:620px;z-index:0;pointer-events:none;
  background:radial-gradient(680px 340px at 50% 0%, rgba(139,92,246,.16), transparent 62%);
  filter:blur(40px);
}
.hero-inner{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:30px;text-align:center;}
.hero-copy{max-width:720px;display:flex;flex-direction:column;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12px;
  letter-spacing:.06em;text-transform:uppercase;color:var(--text-2);margin:0 0 20px;
}
.eyebrow-dot{width:6px;height:6px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 0 3px rgba(56,189,248,.16);}
.hero-copy h1{
  font-family:var(--font-display);font-weight:800;letter-spacing:-.035em;
  font-size:clamp(34px,5.2vw,58px);line-height:1.06;margin:0 0 18px;
}
.gradient-text{background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-copy p{font-size:16.5px;color:var(--text-2);line-height:1.65;max-width:560px;}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center;}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 24px;border-radius:999px;cursor:pointer;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#000;font-weight:700;font-size:15px;
  transition:transform .15s,opacity .15s;
}
.btn-primary:hover{transform:translateY(-1px);opacity:.92;}
.btn-secondary{
  display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 22px;border-radius:999px;cursor:pointer;
  background:var(--panel-2);color:var(--text);font-weight:600;font-size:15px;transition:background .15s;
}
.btn-secondary:hover{background:var(--panel-3);}
.hero-note{font-family:var(--font-mono);font-size:12px;color:var(--text-3);}

/* ---------- section shells ---------- */
.section{padding:64px 0;}
.section-head{max-width:640px;margin:0 auto 44px;text-align:center;}
.section-head h2{font-family:var(--font-display);font-weight:800;letter-spacing:-.025em;font-size:clamp(26px,3.6vw,36px);margin-bottom:12px;}
.section-head p{color:var(--text-2);font-size:15.5px;line-height:1.6;}

/* ---------- tool cards grid ---------- */
.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.tool-card{
  background:var(--panel);border-radius:var(--radius);padding:28px 24px;display:flex;flex-direction:column;gap:14px;
  box-shadow:0 1px 0 rgba(255,255,255,.03) inset,0 20px 40px rgba(0,0,0,.35);transition:transform .18s var(--ease),background .18s;
}
.tool-card:hover{transform:translateY(-3px);background:var(--panel-2);}
.tool-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,rgba(139,92,246,.18),rgba(56,189,248,.18));color:var(--accent-2);
}
.tool-icon svg{width:22px;height:22px;}
.tool-card h3{font-family:var(--font-display);font-weight:700;font-size:17px;letter-spacing:-.01em;}
.tool-card p{color:var(--text-2);font-size:13.5px;line-height:1.6;}
.tool-link{margin-top:auto;font-size:13px;font-weight:600;color:var(--accent-2);display:inline-flex;align-items:center;gap:5px;}

/* ---------- model showcase strip ---------- */
.model-strip{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;}
.model-chip{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:999px;
  background:var(--panel-2);font-family:var(--font-mono);font-size:12.5px;color:var(--text-2);
}
.model-chip b{color:var(--text);font-weight:700;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.step{display:flex;flex-direction:column;gap:10px;}
.step-num{
  width:32px;height:32px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  background:var(--panel-2);font-family:var(--font-mono);font-weight:700;font-size:13px;color:var(--accent-2);
}
.step h3{font-family:var(--font-display);font-weight:700;font-size:16px;}
.step p{color:var(--text-2);font-size:13.5px;line-height:1.6;}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:24px;background:linear-gradient(135deg,rgba(139,92,246,.14),rgba(56,189,248,.10));
  padding:52px 32px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:20px;
}
.cta-band h2{font-family:var(--font-display);font-weight:800;font-size:clamp(24px,3.4vw,32px);letter-spacing:-.02em;}
.cta-band p{color:var(--text-2);font-size:15px;max-width:480px;}

/* ---------- footer ---------- */
.site-footer{padding:40px 0 48px;}
.footer-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;}
.footer-copy{font-size:12.5px;color:var(--text-3);}
.footer-links{display:flex;gap:20px;}
.footer-link{font-size:12.5px;color:var(--text-3);transition:color .15s;}
.footer-link:hover{color:var(--text-2);}

/* ==========================================================================
   Generator app pages (image.html / video.html)
   ========================================================================== */
.app-shell{padding:40px 0 64px;}
.app-head{text-align:center;margin-bottom:32px;}
.app-tabs{display:inline-flex;gap:4px;background:var(--panel-2);padding:4px;border-radius:999px;margin-bottom:24px;}
.app-tab{
  display:inline-flex;align-items:center;gap:7px;height:36px;padding:0 18px;border-radius:999px;cursor:pointer;
  font-size:13.5px;font-weight:600;color:var(--text-2);transition:background .15s,color .15s;
}
.app-tab.active{background:var(--panel-3);color:var(--text);}
.app-tabs-wrap{display:flex;justify-content:center;}

.app-panel{
  background:var(--panel);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:16px;
  box-shadow:0 20px 50px rgba(0,0,0,.4);max-width:760px;margin:0 auto;
}
.prompt-row{display:flex;align-items:center;gap:10px;background:var(--panel-2);border-radius:999px;padding:6px 6px 6px 18px;}
.prompt-input{
  flex:1;min-width:0;background:none;outline:0;color:var(--text);
  font-size:16px;font-family:var(--font-body);height:34px;padding:0;
}
.prompt-input::placeholder{color:rgba(255,255,255,.3);}
.prompt-submit{
  display:inline-flex;align-items:center;gap:6px;height:38px;padding:0 18px 0 14px;border-radius:999px;cursor:pointer;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#000;font-size:13.5px;font-weight:700;white-space:nowrap;
  transition:opacity .15s;
}
.prompt-submit:hover{opacity:.9;}
.prompt-submit:disabled{opacity:.5;cursor:not-allowed;}

.option-row{display:flex;flex-wrap:wrap;gap:10px;}
.option-group{display:flex;flex-direction:column;gap:6px;}
.option-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;text-transform:uppercase;color:var(--text-3);}
.option-select{ display:none; } /* replaced by .cselect at runtime */

.cselect{position:relative;display:inline-block;}
.cselect-btn{
  display:inline-flex;align-items:center;gap:10px;height:36px;padding:0 14px;border-radius:999px;
  background:var(--panel-2);color:var(--text-2);font-size:12.5px;font-family:var(--font-mono);
  cursor:pointer;transition:background .15s,color .15s;
}
.cselect-btn:hover{background:var(--panel-3);color:var(--text);}
.cselect-btn.open{background:var(--panel-3);color:var(--text);}
.cselect-btn.disabled{opacity:.5;cursor:not-allowed;pointer-events:none;}
.cselect-btn svg{flex-shrink:0;transition:transform .15s;color:var(--text-3);}
.cselect-btn.open svg{transform:rotate(180deg);}
.cselect-btn-text{white-space:nowrap;}

.cselect-list{
  position:absolute;top:calc(100% + 6px);left:0;min-width:100%;z-index:30;
  background:var(--panel-3);border-radius:var(--radius-sm);padding:6px;
  box-shadow:0 16px 40px rgba(0,0,0,.5);
  display:flex;flex-direction:column;gap:2px;
}
.cselect-list[hidden]{display:none;}
.cselect-item{
  padding:8px 12px;border-radius:8px;font-size:12.5px;font-family:var(--font-mono);color:var(--text-2);
  white-space:nowrap;cursor:pointer;transition:background .12s,color .12s;
}
.cselect-item:hover{background:rgba(255,255,255,.06);color:var(--text);}
.cselect-item.active{color:var(--text);background:linear-gradient(135deg,rgba(139,92,246,.18),rgba(56,189,248,.18));}

.app-hint{font-size:12.5px;color:var(--text-3);text-align:center;min-height:16px;}
.app-status{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px 0;font-size:13.5px;color:var(--text-2);}
.app-status[hidden]{display:none;}
.spinner{width:16px;height:16px;border-radius:50%;border:2px solid var(--panel-3);border-top-color:var(--accent-2);animation:spin .8s linear infinite;}
@keyframes spin{to{transform:rotate(360deg);}}

.results-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px;margin-top:6px;}
.result-card{background:var(--panel-2);border-radius:var(--radius-sm);overflow:hidden;}
.result-card img,.result-card video{width:100%;display:block;background:var(--panel-3);}
.result-empty{
  text-align:center;padding:40px 16px;color:var(--text-3);font-size:13.5px;background:var(--panel-2);
  border-radius:var(--radius-sm);
}

/* ---------- legal pages reuse ---------- */
.legal-inner{max-width:720px;margin:0 auto;}
.legal h1{font-family:var(--font-display);font-weight:800;letter-spacing:-.02em;font-size:clamp(26px,4vw,36px);margin-bottom:8px;}
.legal-updated{font-family:var(--font-mono);font-size:12px;color:var(--text-3);margin-bottom:36px;}
.legal p{font-size:14.5px;line-height:1.7;color:var(--text-2);margin:0 0 12px;}
.legal-back{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2);margin-bottom:28px;}

/* ---------- responsive ---------- */
@media (max-width: 860px){
  .tool-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
}
@media (max-width: 640px){
  .main-nav{position:fixed;inset:64px 16px auto 16px;background:var(--panel);border-radius:var(--radius);
    padding:14px;flex-direction:column;align-items:flex-start;gap:4px;box-shadow:0 20px 50px rgba(0,0,0,.5);
    display:none;}
  .main-nav.open{display:flex;}
  .main-nav a{padding:10px 8px;width:100%;}
  .nav-cta{width:100%;justify-content:center;margin-top:6px;}
  .nav-toggle{display:flex;}
  .tool-grid{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;width:100%;}
  .btn-primary,.btn-secondary{width:100%;justify-content:center;}
  .prompt-row{flex-direction:column;align-items:stretch;border-radius:18px;padding:12px;}
  .prompt-input{width:100%;height:40px;}
  .prompt-submit{justify-content:center;}
}

/* ---------- cookie consent banner ---------- */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:50;max-width:640px;margin:0 auto;
  background:var(--panel-2);border-radius:var(--radius);padding:16px 18px;
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  box-shadow:0 20px 50px rgba(0,0,0,.5);
}
.cookie-banner p{flex:1;min-width:220px;font-size:12.5px;line-height:1.5;color:var(--text-2);margin:0;}
.cookie-banner a{color:var(--accent-2);text-decoration:underline;}
.cookie-actions{display:flex;gap:8px;flex-shrink:0;}
.cookie-decline{height:34px;padding:0 14px;border-radius:999px;background:var(--panel-3);color:var(--text-2);font-size:12.5px;font-weight:600;cursor:pointer;}
.cookie-accept{height:34px;padding:0 16px;border-radius:999px;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#000;font-size:12.5px;font-weight:700;cursor:pointer;}
@media (max-width:480px){
  .cookie-banner{flex-direction:column;align-items:stretch;}
  .cookie-actions{justify-content:stretch;}
  .cookie-decline,.cookie-accept{flex:1;}
}