:root{
  --bg: #0b0b12;
  --text: #e9e9ef;
  --muted: #b7b7c9;
  --card: #131322;
  --border: #232339;
  --primary: 255, 99, 247; /* violet-ish */
  --accent: 0, 214, 255;  /* cyan */
  --radius: 18px;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  --container: 1200px;
}
:root[data-theme="light"]{
  --bg: #ffffff;
  --text: #11121a;
  --muted: #4b4b5e;
  --card: #f7f7fb;
  --border: #e8e8f3;
  --shadow: 0 12px 30px rgba(10,10,20,.08);
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Apple Color Emoji","Segoe UI Emoji", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
img{max-width:100%;height:auto;border-radius:calc(var(--radius) - 8px)}
a{color:rgb(var(--accent));text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(var(--container), 100% - 2rem);margin-inline:auto}
.section{padding: clamp(3rem, 6vw, 6rem) 0}
.section-title{font-size: clamp(1.6rem, 1.4rem + 1.2vw, 2.2rem);margin:0 0 1rem}
.display{font-size:clamp(2.2rem, 2rem + 2.5vw, 4rem);line-height:1.1;margin:0 0 1rem}
.lead{font-size:clamp(1rem, .95rem + .5vw, 1.25rem);color:var(--muted);max-width:60ch}
.text-sm{font-size:.9rem;color:var(--muted)}
.mt-2{margin-top:.5rem}
.center{text-align:center}

.grad{background: linear-gradient( 90deg, rgba(var(--primary),1), rgba(var(--accent),1) ); -webkit-background-clip:text; background-clip:text; color:transparent}

.card{background:var(--card); border:1px solid var(--border); border-radius:var(--radius); padding:1.25rem; box-shadow:var(--shadow)}
.card-hover{transition: transform .2s ease, box-shadow .2s ease}
.card-hover:hover{transform: translateY(-4px); box-shadow:0 20px 40px rgba(0,0,0,.3)}

.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.1rem;border-radius:999px;border:1px solid transparent;font-weight:600;transition: transform .15s ease, background .2s ease, box-shadow .2s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(90deg, rgba(var(--primary),1), rgba(var(--accent),1)); color:white}
.btn-secondary{background:transparent;border-color:rgba(var(--accent),.6);color:rgb(var(--accent))}
.btn-ghost{background:transparent;border-color:var(--border);color:var(--text)}

.list-plain{list-style:none;padding:0;margin:0}
.list-plain li{margin:.4rem 0}
.list-check{list-style:none;padding:0}
.list-check li{margin:.5rem 0; padding-left:1.4rem; position:relative}
.list-check li::before{content:"✓"; position:absolute; left:0; top:0; color:rgb(var(--accent))}

/* Header */
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:1rem;top:1rem;width:auto;height:auto;padding:.5rem 1rem;background:var(--card);border:1px solid var(--border);border-radius:.5rem;z-index:10000}

.site-header{position:sticky;top:0;backdrop-filter:saturate(180%) blur(10px); background: color-mix(in oklab, var(--bg), transparent 25%); border-bottom:1px solid var(--border); z-index:1000}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 0}

.logo{display:flex;align-items:center;gap:.6rem;font-weight:800;font-size:1.1rem;color:var(--text);text-decoration:none}
.logo-mark{display:grid;place-items:center; width:28px; height:28px; border-radius:8px; background:linear-gradient(135deg, rgba(var(--primary),1), rgba(var(--accent),1)); color:white; font-weight:900}

.site-nav{display:flex;align-items:center;gap:1rem}
.site-nav ul{display:flex;gap:.5rem;list-style:none;margin:0;padding:0}
.site-nav a{display:inline-block;padding:.6rem .9rem;border-radius:999px}
.site-nav a[aria-current="page"]{background:rgba(var(--accent),.12)}
.nav-cta{display:flex;align-items:center;gap:.6rem}

.nav-toggle{display:none; background:transparent;border:1px solid var(--border);border-radius:12px;padding:.5rem;gap:.3rem}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--text);margin:3px 0;border-radius:2px}

/* Mobile nav */
@media (max-width: 960px){
  .nav-toggle{display:inline-flex}
  .site-nav{position:fixed;inset:60px 1rem auto 1rem;background:var(--card);border:1px solid var(--border);border-radius:16px; padding:1rem; display:none; flex-direction:column; gap:1rem}
  .site-nav.open{display:flex}
  .site-nav ul{flex-direction:column;gap:.25rem}
  .nav-cta{justify-content:space-between}
}

/* Hero */
.hero-grid{display:grid;grid-template-columns: 1.1fr .9fr; align-items:center; gap:clamp(1rem, 2vw, 2rem)}
.hero-copy .actions{display:flex;gap:.8rem;margin-top:1rem;flex-wrap:wrap}
.hero-badges{display:flex;gap:.5rem;flex-wrap:wrap;justify-content:center;margin-top:1rem}
.badge{padding:.4rem .7rem;background:rgba(var(--accent),.14);border:1px solid rgba(var(--accent),.25);border-radius:999px;color:rgb(var(--accent));font-weight:600;font-size:.9rem}
.hero-visual img{border-radius:var(--radius)}
@media (max-width: 960px){ .hero-grid{grid-template-columns:1fr} }

/* Stats */
.stats-grid{display:grid;grid-template-columns: repeat(4, 1fr); gap:1rem}
.stat{display:grid;place-items:center;padding:1.2rem}
.stat .counter{font-size:2rem;font-weight:800}
.stat .label{color:var(--muted)}
@media (max-width: 960px){ .stats-grid{grid-template-columns: repeat(2, 1fr)} }

/* Features grid */
.grid{display:grid;gap:1rem}
.features-grid{grid-template-columns: repeat(3, 1fr)}
@media (max-width: 960px){ .features-grid{grid-template-columns: repeat(2, 1fr)} }
@media (max-width: 640px){ .features-grid{grid-template-columns: 1fr} }

/* Marquee */
.marquee{overflow:hidden; border:1px solid var(--border); border-radius:var(--radius); background:color-mix(in oklab, var(--card), transparent 10%)}
.track{display:flex;gap:1rem;padding:1rem; animation:scroll 25s linear infinite}
.marquee-card{min-width:240px; padding:1rem 1.2rem; border:1px solid var(--border); border-radius:14px; background:var(--bg); box-shadow:var(--shadow)}
@keyframes scroll{ from{transform:translateX(0)} to{transform:translateX(-50%)} }

/* Timeline */
.timeline{list-style:none;margin:0;padding:0;border-left:2px dashed rgba(var(--accent),.35);padding-left:1.25rem;display:grid;gap:1rem}
.timeline li{display:flex;gap:1rem;align-items:flex-start}
.timeline .step{display:grid;place-items:center;background:linear-gradient(135deg, rgba(var(--primary),1), rgba(var(--accent),1)); color:#fff; font-weight:800; width:36px;height:36px;border-radius:10px;flex:0 0 36px}

/* Gallery */
.gallery{display:grid;grid-template-columns: repeat(3, 1fr); gap:1rem}
.gallery figure{margin:0; position:relative; overflow:hidden; border-radius:var(--radius); border:1px solid var(--border)}
.gallery img{display:block; transition: transform .4s ease}
.gallery figure:hover img{transform:scale(1.06)}
.gallery figcaption{position:absolute; inset:auto 0 0 0; background:linear-gradient( to top, rgba(0,0,0,.5), transparent ); color:#fff; padding:.7rem 1rem; font-weight:700}

/* CTA */
.cta .cta-box{display:flex;flex-direction:column;align-items:center;gap:.6rem;text-align:center}

/* About */
.about-grid{grid-template-columns: 1fr .8fr}
.avatar{border-radius:50%; border:4px solid rgba(var(--accent),.3)}
@media (max-width: 960px){ .about-grid{grid-template-columns: 1fr} }

/* Contact */
.contact-grid{grid-template-columns: 1.1fr .9fr}
@media (max-width: 960px){ .contact-grid{grid-template-columns: 1fr} }
.form-field{display:flex;flex-direction:column;gap:.4rem;margin-bottom:1rem}
input, textarea{background:var(--bg);color:var(--text);border:1px solid var(--border);border-radius:12px;padding:.8rem .9rem;font:inherit}
input:focus, textarea:focus{outline:2px solid rgba(var(--accent), .5); outline-offset:1px}
.form-messages{margin-top:.75rem;min-height:1.5rem}

/* Footer */
.site-footer{padding:3rem 0;border-top:1px solid var(--border); background: color-mix(in oklab, var(--bg), transparent 5%)}
.footer-grid{display:grid;grid-template-columns: 1.2fr 1fr 1fr; gap:1rem}
.footer-grid h4,.footer-grid h5{margin:.2rem 0 1rem}
@media (max-width: 960px){ .footer-grid{grid-template-columns: 1fr} }

/* Reveal on scroll */
[data-animate]{opacity:0;transform:translateY(20px);transition:opacity .6s ease, transform .6s ease}
[data-animate].in{opacity:1;transform:none}

/* Page transition overlay */
.page-transition{position:fixed;inset:0;background: radial-gradient(1200px 800px at 10% 10%, rgba(var(--primary),.25), transparent 30%), linear-gradient(135deg, rgba(var(--primary),.7), rgba(var(--accent),.7)); opacity:0; pointer-events:none; transition: opacity .35s ease; mix-blend-mode:multiply; z-index:2000}
.page-transition.active{opacity:.95; pointer-events:auto}

/* Focus styles */
:focus-visible{outline:2px dashed rgba(var(--accent), .8); outline-offset:2px}