/* ============ Root / Reset ============ */
:root{
  --bg:#0b0c10;
  --bg-alt:#101218;
  --ink:#f5f6f8;
  --ink-dim:#a6acbb;
  --accent:#6c5ce7;
  --accent-2:#00e0c6;
  --border:rgba(255,255,255,0.08);
  --card:rgba(255,255,255,0.03);
  --radius:16px;
  --maxw:1160px;
  --font-body: 'Sora', system-ui, sans-serif;
  --font-head: 'Space Grotesk', system-ui, sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  line-height:1.6;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3{font-family:var(--font-head);line-height:1.15;margin:0 0 .5em;}
p{margin:0 0 1em;}
.muted{color:var(--ink-dim);}

#cursor-blob{
  position:fixed;
  top:0;left:0;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(108,92,231,0.25), rgba(0,224,198,0.08) 40%, transparent 70%);
  pointer-events:none;
  transform:translate(-50%,-50%);
  z-index:0;
  transition:opacity .3s ease;
  filter:blur(10px);
}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:.85em 1.6em;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:linear-gradient(135deg,var(--accent),#a29bfe);color:#fff;box-shadow:0 8px 24px -8px rgba(108,92,231,.6);}
.btn-primary:hover{box-shadow:0 12px 28px -6px rgba(108,92,231,.75);}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--ink);}
.btn-ghost:hover{background:rgba(255,255,255,0.06);}
.btn-sm{padding:.6em 1.1em;font-size:.85rem;}

/* ============ Nav ============ */
.site-nav{
  position:fixed;top:0;left:0;right:0;
  z-index:100;
  backdrop-filter:blur(14px);
  background:rgba(11,12,16,0.6);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:.9rem 1.5rem;
}
.logo{font-family:var(--font-head);font-weight:700;font-size:1.1rem;}
.logo span{color:var(--accent-2);}
.nav-links{display:flex;align-items:center;gap:1.8rem;font-size:.92rem;color:var(--ink-dim);}
.nav-links a{transition:color .2s ease;}
.nav-links a:hover{color:var(--ink);}
.nav-cta{
  background:var(--ink);color:var(--bg)!important;
  padding:.5em 1.1em;border-radius:999px;font-weight:600;
}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;
  padding:8rem 1.5rem 4rem;
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(circle at 20% 20%, rgba(108,92,231,.35), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(0,224,198,.25), transparent 45%),
    radial-gradient(circle at 50% 90%, rgba(108,92,231,.2), transparent 50%);
  filter:blur(20px);
  z-index:-1;
}
.hero-content{max-width:800px;position:relative;z-index:1;}
.eyebrow{
  display:inline-block;
  text-transform:uppercase;
  letter-spacing:.12em;
  font-size:.78rem;
  color:var(--accent-2);
  font-weight:600;
  margin-bottom:1rem;
}
.hero-title{font-size:clamp(2.4rem,6vw,4.2rem);font-weight:800;letter-spacing:-.02em;}
.hero-sub{color:var(--ink-dim);font-size:1.1rem;max-width:640px;margin:1.2rem auto 2rem;}
.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap;margin-bottom:3rem;}
.hero-stats{display:flex;gap:2.5rem;justify-content:center;flex-wrap:wrap;}
.stat{display:flex;flex-direction:column;align-items:center;}
.stat-num{font-family:var(--font-head);font-size:2rem;font-weight:700;color:var(--ink);}
.stat-label{color:var(--ink-dim);font-size:.85rem;}
.scroll-cue{
  position:absolute;bottom:2rem;left:50%;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:.4rem;
  font-size:.75rem;color:var(--ink-dim);letter-spacing:.08em;text-transform:uppercase;
}
.scroll-cue span{
  width:1px;height:26px;background:linear-gradient(var(--ink-dim),transparent);
  animation:scrollcue 1.8s infinite ease-in-out;
}
@keyframes scrollcue{0%{transform:translateY(0);opacity:1;}100%{transform:translateY(14px);opacity:0;}}

/* ============ Section shared ============ */
.section{
  max-width:var(--maxw);
  margin:0 auto;
  padding:6rem 1.5rem;
  position:relative;
  z-index:1;
}
.section-head{max-width:680px;margin-bottom:2.5rem;}
.section-head h2{font-size:clamp(1.8rem,3.4vw,2.6rem);}
.section-sub{color:var(--ink-dim);}

/* ============ Gallery / Theme demo ============ */
.theme-tabs{display:flex;flex-wrap:wrap;gap:.6rem;margin-bottom:2rem;}
.theme-tab{
  padding:.6em 1.2em;border-radius:999px;
  border:1px solid var(--border);
  background:var(--card);
  color:var(--ink-dim);
  font-family:var(--font-body);font-weight:600;font-size:.88rem;
  cursor:pointer;transition:all .25s ease;
}
.theme-tab:hover{color:var(--ink);border-color:var(--accent);}
.theme-tab.is-active{background:var(--accent);color:#fff;border-color:var(--accent);}

.demo-frame{
  border-radius:var(--radius);
  border:1px solid var(--border);
  padding:2.5rem;
  transition:background .4s ease, color .4s ease, border-color .4s ease;
  overflow:hidden;
}
.demo-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:2.5rem;padding-bottom:1.2rem;border-bottom:1px solid var(--border);}
.demo-logo{font-weight:700;font-family:var(--font-head);}
.demo-links{display:flex;gap:.6rem;}
.demo-links i{width:34px;height:8px;border-radius:4px;background:currentColor;opacity:.25;display:block;}
.demo-cta{padding:.5em 1.1em;border-radius:999px;background:currentColor;color:var(--bg);font-weight:600;font-size:.85rem;}
.demo-hero{text-align:center;padding:2rem 0 3rem;max-width:560px;margin:0 auto;}
.demo-hero h3{font-size:1.8rem;}
.demo-btn{display:inline-block;margin-top:1rem;padding:.7em 1.6em;border-radius:999px;background:currentColor;color:var(--bg);font-weight:700;font-size:.9rem;}
.demo-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;}
.demo-card{border:1px solid var(--border);border-radius:12px;padding:1.2rem;background:rgba(255,255,255,.02);}
.demo-icon{font-size:1.3rem;opacity:.7;}

/* --- theme: minimal --- */
.demo-frame[data-theme="minimal"]{background:#fafafa;color:#111;border-color:#eee;font-family:var(--font-body);}
.demo-frame[data-theme="minimal"] .demo-card{background:#fff;border-color:#eee;}

/* --- theme: corporate --- */
.demo-frame[data-theme="corporate"]{background:#0f2748;color:#eaf1ff;border-color:#1c3f6e;}
.demo-frame[data-theme="corporate"] .demo-cta,
.demo-frame[data-theme="corporate"] .demo-btn{background:#3b82f6;color:#fff;}
.demo-frame[data-theme="corporate"] .demo-card{background:rgba(255,255,255,.04);border-color:#1c3f6e;}
.demo-frame[data-theme="corporate"] h3{font-family:Georgia, 'Times New Roman', serif;}

/* --- theme: neon --- */
.demo-frame[data-theme="neon"]{background:#08010f;color:#f0f0ff;border-color:#3a0a5c;box-shadow:0 0 60px -20px rgba(255,0,200,.4) inset;}
.demo-frame[data-theme="neon"] h3{color:#ff2fd0;text-shadow:0 0 18px rgba(255,47,208,.7);font-family:var(--font-head);}
.demo-frame[data-theme="neon"] .demo-cta,
.demo-frame[data-theme="neon"] .demo-btn{background:linear-gradient(135deg,#ff2fd0,#7f5cff);color:#fff;box-shadow:0 0 20px rgba(255,47,208,.5);}
.demo-frame[data-theme="neon"] .demo-card{background:rgba(127,92,255,.06);border-color:#3a0a5c;}
.demo-frame[data-theme="neon"] .demo-logo{color:#00f0ff;text-shadow:0 0 10px rgba(0,240,255,.7);}

/* --- theme: glass --- */
.demo-frame[data-theme="glass"]{
  background:linear-gradient(135deg, rgba(108,92,231,.25), rgba(0,224,198,.15));
  color:#fff;border-color:rgba(255,255,255,.25);
  backdrop-filter:blur(6px);
}
.demo-frame[data-theme="glass"] .demo-card{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.25);backdrop-filter:blur(10px);}
.demo-frame[data-theme="glass"] .demo-cta,
.demo-frame[data-theme="glass"] .demo-btn{background:rgba(255,255,255,.85);color:#3d2b8c;}

/* ============ AI section ============ */
.ai-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.5rem;}
.ai-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.6rem;}
.chat-header{display:flex;align-items:center;gap:.5rem;font-weight:600;margin-bottom:1rem;font-size:.9rem;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent-2);box-shadow:0 0 8px var(--accent-2);}
.chat-window{
  height:260px;overflow-y:auto;
  display:flex;flex-direction:column;gap:.6rem;
  padding-right:.4rem;margin-bottom:1rem;
}
.msg{max-width:85%;padding:.6em .9em;border-radius:14px;font-size:.92rem;}
.msg.bot{align-self:flex-start;background:rgba(255,255,255,.06);border:1px solid var(--border);}
.msg.user{align-self:flex-end;background:var(--accent);color:#fff;}
.chat-form{display:flex;gap:.6rem;}
.chat-form input{flex:1;background:rgba(255,255,255,.04);border:1px solid var(--border);color:var(--ink);padding:.7em 1em;border-radius:999px;font-family:var(--font-body);}
.chat-form input:focus{outline:none;border-color:var(--accent);}
.chat-form button{border:none;background:var(--accent);color:#fff;padding:.7em 1.3em;border-radius:999px;font-weight:600;cursor:pointer;transition:background .2s;}
.chat-form button:hover{background:#5a4bd4;}

.generator-controls{display:flex;gap:.6rem;margin:1.2rem 0;flex-wrap:wrap;}
.generator-controls select{
  background:rgba(255,255,255,.04);border:1px solid var(--border);color:var(--ink);
  padding:.6em .9em;border-radius:10px;font-family:var(--font-body);
}
.generator-output{
  background:rgba(255,255,255,.04);border:1px dashed var(--border);
  border-radius:12px;padding:1.2rem;min-height:70px;font-size:1.05rem;font-weight:600;font-family:var(--font-head);
  display:flex;align-items:center;
}

/* ============ API section ============ */
.api-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem;}
.api-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1.6rem;}
.api-card h3{font-size:1.1rem;margin-bottom:1rem;}
.api-controls{display:flex;gap:.6rem;margin-bottom:1rem;flex-wrap:wrap;}
.api-controls input{
  flex:1;min-width:140px;background:rgba(255,255,255,.04);border:1px solid var(--border);color:var(--ink);
  padding:.6em .9em;border-radius:10px;font-family:var(--font-body);
}
.api-controls input:focus{outline:none;border-color:var(--accent);}
.api-output{background:rgba(255,255,255,.03);border-radius:10px;padding:1rem;font-size:.92rem;color:var(--ink-dim);min-height:50px;}
.api-output strong{color:var(--ink);}
.api-output.loading{color:var(--accent-2);}
.api-output.error{color:#ff6b6b;}

/* ============ Effects section ============ */
.tilt-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.5rem;}
.tilt-card{
  perspective:800px;
  border-radius:var(--radius);
  opacity:0;transform:translateY(24px);
  transition:opacity .6s ease, transform .6s ease;
}
.tilt-card.is-visible{opacity:1;transform:translateY(0);}
.tilt-inner{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.8rem;height:100%;
  transition:transform .1s ease-out;
  transform-style:preserve-3d;
}

/* ============ Contact ============ */
.contact-section{padding-bottom:8rem;}
.contact-inner{max-width:680px;margin:0 auto;text-align:center;}
.contact-form{margin-top:2rem;text-align:left;display:flex;flex-direction:column;gap:1rem;}
.form-row{display:flex;gap:1rem;}
.contact-form input,.contact-form textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--border);color:var(--ink);
  padding:.8em 1em;border-radius:10px;font-family:var(--font-body);resize:vertical;
}
.contact-form input:focus,.contact-form textarea:focus{outline:none;border-color:var(--accent);}
.form-note{color:var(--accent-2);font-weight:600;min-height:1.4em;}

/* ============ Footer ============ */
.site-footer{
  text-align:center;padding:2.5rem 1.5rem;color:var(--ink-dim);font-size:.85rem;
  border-top:1px solid var(--border);
}

/* ============ Responsive ============ */
@media (max-width:820px){
  .nav-links{display:none;}
  .ai-grid,.api-grid{grid-template-columns:1fr;}
  .form-row{flex-direction:column;}
  .hero-stats{gap:1.5rem;}
}