:root{
  --bg: #0f1220;
  --bg2:#11162a;
  --card:#151b33;
  --text:#f5f6fa;
  --muted:#c9cdfc;
  --muted2:#9aa0ea;
  --accent:#5b6cff;
  --accent2:#4a5aff;
  --border: rgba(255,255,255,0.10);
  --shadow: 0 12px 40px rgba(0,0,0,0.35);
  --radius: 14px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,Helvetica,Arial,sans-serif;
  background:
    radial-gradient(900px 600px at 20% 10%, rgba(91,108,255,0.20), transparent 55%),
    radial-gradient(700px 500px at 80% 20%, rgba(255,255,255,0.08), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg2));
  color:var(--text);
  line-height:1.6;
}

a{color:inherit}
.container{
  width:min(1080px, calc(100% - 2rem));
  margin:0 auto;
}

.skip-link{
  position:absolute; left:-999px; top:auto;
  width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left:1rem; top:1rem;
  width:auto; height:auto;
  padding:.6rem .9rem;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:10px;
  z-index:1000;
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:20;
  backdrop-filter: blur(10px);
  background: rgba(15,18,32,0.60);
  border-bottom:1px solid var(--border);
}
.header-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  padding: .85rem 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:.85rem;
}
.logo{
  width:44px; height:44px;
  display:grid; place-items:center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(91,108,255,0.95), rgba(91,108,255,0.35));
  border:1px solid rgba(255,255,255,0.12);
  box-shadow: var(--shadow);
  font-weight:800;
  letter-spacing:-0.03em;
}
.brand-name{font-weight:800; letter-spacing:-0.02em}
.brand-tag{color:var(--muted2); font-size:.95rem}

.lang-switch{
  display:flex;
  gap:.35rem;
  padding:.25rem;
  border:1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
}
.lang-btn{
  appearance:none;
  border:0;
  background: transparent;
  color: var(--muted);
  padding:.45rem .7rem;
  border-radius:999px;
  font-weight:700;
  cursor:pointer;
}
.lang-btn[aria-pressed="true"]{
  background: rgba(91,108,255,0.30);
  color: var(--text);
}

/* Hero */
.hero{padding: 4.2rem 0 2.5rem}
.hero-grid{
  display:grid;
  grid-template-columns: 1.25fr 0.9fr;
  gap:2rem;
  align-items:center;
}
.hero-title{
  font-size: clamp(2.6rem, 4vw, 3.8rem);
  margin: 0 0 .6rem;
  letter-spacing: -0.03em;
}
.hero-lead{
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  color: var(--text);
  margin:.2rem 0 .9rem;
}
.hero-sub{
  margin:0 0 1.4rem;
  color: var(--muted);
  font-size:1.05rem;
}
.cta-row{display:flex; gap:.75rem; flex-wrap:wrap}
.cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:.85rem 1.1rem;
  border-radius: 12px;
  text-decoration:none;
  font-weight:800;
  border:1px solid var(--border);
}
.cta.primary{
  background: var(--accent);
  border-color: rgba(255,255,255,0.12);
}
.cta.primary:hover{background:var(--accent2)}
.cta.ghost{
  background: rgba(255,255,255,0.04);
}
.micro{
  margin-top: 1.1rem;
  color: var(--muted2);
  font-size:.95rem;
}

/* Hero card */
.hero-card{
  background: rgba(21,27,51,0.80);
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding:1.2rem 1.15rem;
}
.card-title{color:var(--muted2); font-weight:800; font-size:.95rem}
.card-guess{display:flex; align-items:center; justify-content:space-between; margin:.9rem 0 .5rem}
.chip{
  display:inline-flex;
  align-items:center;
  padding:.35rem .6rem;
  border-radius: 999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,0.03);
  font-weight:800;
}
.temp{
  font-weight:900;
  letter-spacing:.01em;
  text-transform: uppercase;
  font-size:.82rem;
  padding:.35rem .55rem;
  border-radius: 999px;
  border:1px solid var(--border);
}
.temp.warm{ background: rgba(255,173,74,0.18); }
.card-hint{color:var(--muted); margin: .55rem 0 .9rem; font-size: .98rem}

.progress{
  height:10px;
  border-radius:999px;
  border:1px solid var(--border);
  background: rgba(255,255,255,0.03);
  overflow:hidden;
}
.progress-bar{
  height:100%;
  border-radius:999px;
  background: linear-gradient(90deg, rgba(91,108,255,0.9), rgba(255,173,74,0.9));
}
.card-foot{margin-top:.9rem; color:var(--muted2); font-size:.92rem}

/* Sections */
.section{padding: 3rem 0}
.section.alt{
  background: rgba(255,255,255,0.03);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
h2{
  margin:0 0 1.4rem;
  font-size: clamp(1.55rem, 2.5vw, 2rem);
  letter-spacing:-0.02em;
}
.steps, .bullets{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:1rem;
}
.step, .bullet{
  background: rgba(21,27,51,0.55);
  border:1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1rem;
}
.step-num{
  width:34px; height:34px;
  border-radius: 10px;
  display:grid; place-items:center;
  font-weight:900;
  background: rgba(91,108,255,0.25);
  border:1px solid rgba(255,255,255,0.10);
  margin-bottom:.65rem;
}
h3{margin:.2rem 0 .4rem; letter-spacing:-0.01em}
.step p, .bullet p{margin:0; color:var(--muted); font-size: .98rem}

.legal p{margin:.3rem 0; color:var(--muted)}

/* Footer */
.site-footer{
  border-top:1px solid var(--border);
  padding: 1.6rem 0;
  background: rgba(15,18,32,0.55);
}
.footer-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  flex-wrap:wrap;
}
.footer-brand{font-weight:900}
.footer-small{color:var(--muted2); font-size:.92rem}
.footer-right{display:flex; gap:.6rem; align-items:center; color:var(--muted2)}
.footer-right a{color:var(--muted2); text-decoration:none}
.footer-right a:hover{text-decoration:underline}
.sep{opacity:.6}

/* Responsive */
@media (max-width: 900px){
  .hero-grid{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .steps, .bullets{grid-template-columns:1fr}
}