/* Theme variables */
html[data-theme="dark"]{
  --bg:#0b0f1a;
  --ink:#f3f4f6;
  --muted:rgba(243,244,246,.70);
  --line:rgba(255,255,255,.10);
  --surface:#0f1626;
  --surface2:#0c1322;

  --blue:#0a84ff;
  --blue2:#0070d9;

  --shadow:0 20px 60px rgba(0,0,0,.45);
  --shadowSoft:0 14px 40px rgba(0,0,0,.30);
  --container:1160px;
  --radius:18px;
}

html[data-theme="light"]{
  --bg:#ffffff;
  --ink:#0b0f1a;
  --muted:rgba(11,15,26,.68);
  --line:rgba(11,15,26,.10);
  --surface:#f5f5f7;
  --surface2:#ffffff;

  --blue:#0071e3;
  --blue2:#0059b3;

  --shadow:0 18px 50px rgba(15,23,42,.10);
  --shadowSoft:0 12px 35px rgba(15,23,42,.08);
  --container:1160px;
  --radius:18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color:var(--ink);
  background:var(--bg);
}

a{color:inherit;text-decoration:none}
.container{max-width:var(--container);margin:0 auto;padding:0 22px}
.wfull{width:100%}

/* Header */
.header{
  position:sticky;top:0;z-index:50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}

.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:10px;height:10px;border-radius:999px;
  background:var(--ink);
  opacity:.9;
}
.brand-name{font-weight:900;letter-spacing:-.01em;font-size:14.5px}

.nav{display:flex;gap:18px}
.nav a{font-size:14px;font-weight:700;color:color-mix(in srgb, var(--ink) 72%, transparent)}
.nav a:hover{color:color-mix(in srgb, var(--ink) 92%, transparent)}

.header-actions{display:flex;gap:14px;align-items:center}
.header-link{font-weight:800;color:color-mix(in srgb, var(--ink) 70%, transparent)}
.header-link:hover{color:color-mix(in srgb, var(--ink) 92%, transparent)}

/* Theme toggle */
.theme-toggle{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--surface2) 70%, transparent);
  color:color-mix(in srgb, var(--ink) 85%, transparent);
  font-weight:850;
  font-size:13px;
  cursor:pointer;
  box-shadow: var(--shadowSoft);
}
.theme-icon{
  width:10px;height:10px;border-radius:999px;
  background: var(--blue);
}
.theme-text{opacity:.95}

/* Mobile menu button */
.menu{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--surface2) 75%, transparent);
  box-shadow: var(--shadowSoft);
  cursor:pointer;
}
.menu span{display:block;width:18px;height:2px;margin:0 auto;background:color-mix(in srgb, var(--ink) 70%, transparent)}
.menu span:nth-child(2){margin-top:6px}
.menu span:nth-child(3){margin-top:6px}

@media (max-width: 920px){
  .nav{display:none}
  .menu{display:block}
}

/* Mobile */
.mobile{border-top:1px solid var(--line)}
.mobile-inner{padding:14px 22px 18px;display:grid;gap:10px}
.mobile-inner a{
  padding:12px 12px;border-radius:14px;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--surface2) 85%, transparent);
  font-weight:800;
}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding: 11px 16px;
  border-radius: 999px;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--surface2) 85%, transparent);
  font-weight:850;
  font-size:14px;
  transition: transform .12s ease, background .12s ease, border-color .12s ease;
}
.btn:hover{transform: translateY(-1px)}
.btn:active{transform: translateY(0px)}
.btn-primary{
  background: var(--blue);
  border-color: color-mix(in srgb, var(--blue) 35%, transparent);
  color:#fff;
}
.btn-primary:hover{background: var(--blue2)}
.btn-ghost{
  background: color-mix(in srgb, var(--surface2) 70%, transparent);
}

/* Hero */
.hero{
  padding: 74px 0 44px;
  border-bottom:1px solid var(--line);
}
.hero-inner{max-width: 980px}
.hero-title{
  margin:0;
  font-size: clamp(38px, 4.6vw, 64px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}
.hero-subtitle{
  display:block;
  margin-top: 10px;
  font-size: clamp(18px, 2vw, 22px);
  color: color-mix(in srgb, var(--ink) 55%, transparent);
  font-weight:800;
  letter-spacing:-.01em;
}
.hero-copy{
  margin: 18px 0 0;
  color: color-mix(in srgb, var(--ink) 70%, transparent);
  line-height: 1.85;
  font-size: 16px;
  max-width: 72ch;
}
.hero-cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}

/* Hero visual */
.hero-visual{margin-top:26px}
.visual-frame{
  border:1px solid var(--line);
  border-radius: 22px;
  background: var(--surface2);
  box-shadow: var(--shadow);
  overflow:hidden;
}
.visual-topbar{
  height:40px;
  display:flex;align-items:center;gap:8px;
  padding: 0 14px;
  border-bottom:1px solid var(--line);
  background: var(--surface);
}
.visual-topbar span{
  width:10px;height:10px;border-radius:999px;background:color-mix(in srgb, var(--ink) 18%, transparent)
}
.visual-body{padding:16px}
.v-title{height:16px;width:56%;border-radius:10px;background:color-mix(in srgb, var(--ink) 14%, transparent)}
.v-line{height:12px;border-radius:10px;background:color-mix(in srgb, var(--ink) 10%, transparent);margin-top:10px}
.w70{width:70%}
.w55{width:55%}
.v-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
@media (max-width:520px){ .v-grid{grid-template-columns:1fr} }
.v-block{height:72px;border-radius:16px;background:color-mix(in srgb, var(--ink) 7%, transparent);border:1px solid color-mix(in srgb, var(--ink) 10%, transparent)}

/* Facts */
.hero-facts{
  margin-top: 22px;
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap:14px;
}
@media (max-width: 900px){ .hero-facts{grid-template-columns:1fr} }
.fact{
  border-top:1px solid var(--line);
  padding-top: 12px;
}
.fact-k{font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:color-mix(in srgb, var(--ink) 55%, transparent);font-weight:900}
.fact-v{margin-top:8px;color:color-mix(in srgb, var(--ink) 72%, transparent);font-weight:650;line-height:1.65}

/* Sections */
.section{padding: 70px 0}
.section-head{max-width: 920px}
.section-head h2{margin:0 0 12px;font-size:32px;letter-spacing:-.02em}
.section-head p{margin:0;color:color-mix(in srgb, var(--ink) 70%, transparent);line-height:1.9;font-size:16px}

.three{
  margin-top: 24px;
  display:grid;
  grid-template-columns: repeat(3,1fr);
  gap: 16px;
}
@media (max-width: 920px){ .three{grid-template-columns:1fr} }
.three-item h3{margin:0 0 10px;font-size:18px}
.three-item p{margin:0;color:color-mix(in srgb, var(--ink) 70%, transparent);line-height:1.85}

/* Band */
.band{
  background: var(--surface);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding: 74px 0;
}
.band-inner{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items:center;
}
@media (max-width: 980px){ .band-inner{grid-template-columns:1fr} }

.band-copy h2{margin:0 0 12px;font-size:36px;letter-spacing:-.02em}
.band-copy p{margin:0;color:color-mix(in srgb, var(--ink) 70%, transparent);line-height:1.9;font-size:16px;max-width:62ch}
.band-visual{display:flex;justify-content:center}

.band-image{
  width:100%;
  max-width: 520px;
  height: 320px;
  border-radius: 22px;
  border:1px solid var(--line);
  background: var(--surface2);
  box-shadow: var(--shadow);
}

/* Quote */
.quote{padding: 74px 0}
.quote-inner{
  display:grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 18px;
  align-items:start;
}
@media (max-width: 980px){ .quote-inner{grid-template-columns:1fr} }

.quote-copy h2{margin:0 0 12px;font-size:36px;letter-spacing:-.02em}
.quote-copy p{margin:0;color:color-mix(in srgb, var(--ink) 70%, transparent);line-height:1.9;font-size:16px}
.bullets{margin:16px 0 0;padding-left:18px;color:color-mix(in srgb, var(--ink) 70%, transparent);line-height:1.9}

.form{
  border:1px solid var(--line);
  background: var(--surface2);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 16px;
}
.row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width: 720px){ .row{grid-template-columns:1fr} }

.field label{display:block;font-size:12.5px;color:color-mix(in srgb, var(--ink) 60%, transparent);font-weight:850;margin-bottom:6px}
input,textarea{
  width:100%;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  outline:none;
}
input:focus,textarea:focus{border-color:color-mix(in srgb, var(--blue) 45%, transparent);box-shadow:0 0 0 6px color-mix(in srgb, var(--blue) 18%, transparent)}
.msg{margin-top:10px;min-height:18px;color:color-mix(in srgb, var(--ink) 70%, transparent);font-weight:750}
.fine{margin-top:10px;color:color-mix(in srgb, var(--ink) 55%, transparent);font-size:12.5px;line-height:1.7}

/* Footer */
.footer{
  border-top:1px solid var(--line);
  padding: 28px 0 40px;
  background: var(--bg);
}
.footer-inner{
  display:flex;justify-content:space-between;gap:12px;align-items:center;
  color:color-mix(in srgb, var(--ink) 60%, transparent);font-weight:700
}
.footer-links{display:flex;gap:14px;flex-wrap:wrap}
.footer-links a{color:color-mix(in srgb, var(--ink) 62%, transparent)}
.footer-links a:hover{color:color-mix(in srgb, var(--ink) 92%, transparent)}