:root {
  --bg: #0b0f17;
  --card: #121826;
  --muted: #a3b1c6;
  --text: #ecf2ff;
  --brand: #6aa8ff;
  --brand-2: #7cf7d4;
  --ring: #2a3346;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", sans-serif;
  background: radial-gradient(1200px 800px at 80% -10%, rgba(108,171,255,0.15), transparent 60%), var(--bg);
  color: var(--text);
}
img { max-width: 100%; display: block; }

.container { width: min(1120px, 92%); margin: 0 auto; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(8px); background: rgba(11,15,23,0.6); border-bottom: 1px solid rgba(255,255,255,0.06); }
.header-inner { display: grid; grid-template-columns: auto 1fr auto auto; align-items: center; gap: 1rem; padding: .9rem 0; }
.brand { text-decoration: none; }
.brand-mark { font-weight: 800; letter-spacing: .2px; background: linear-gradient(90deg, var(--brand), var(--brand-2)); -webkit-background-clip: text; background-clip: text; color: transparent; font-size: 1.25rem; }

.nav { display: flex; gap: 1rem; }
.nav a { color: var(--muted); text-decoration: none; padding: .5rem .6rem; border-radius: .6rem; }
.nav a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

.lang-cta { display: flex; align-items: center; gap: .8rem; }
.lang-switch { display: inline-flex; background: var(--card); border: 1px solid var(--ring); border-radius: .7rem; padding: .15rem; }
.lang-btn { border: 0; background: transparent; color: var(--muted); padding: .45rem .6rem; border-radius: .5rem; cursor: pointer; font-weight: 600; }
.lang-btn.is-active { background: linear-gradient(180deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)); color: var(--text); }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; text-decoration: none; font-weight: 700; border-radius: .9rem; padding: .8rem 1rem; border: 1px solid transparent; }
.btn.primary { background: linear-gradient(90deg, var(--brand), var(--brand-2)); color: #0a0f16; }
.btn.secondary { background: #1a2236; border-color: #2a3346; color: var(--text); }
.btn.ghost { background: transparent; border-color: #2a3346; color: var(--text); }
.btn:hover { filter: brightness(1.05); }

.hamburger { display: none; background: transparent; border: 0; width: 40px; height: 40px; border-radius: .6rem; position: relative; }
.hamburger span { position: absolute; left: 8px; right: 8px; height: 2px; background: var(--text); border-radius: 1px; transition: .2s; }
.hamburger span:nth-child(1){ top: 12px; }
.hamburger span:nth-child(2){ top: 19px; }
.hamburger span:nth-child(3){ top: 26px; }

.mobile-menu { background: rgba(11,15,23,.95); border-bottom: 1px solid rgba(255,255,255,.06); }
.mobile-menu nav { display: grid; gap: .2rem; padding: .6rem 1rem 1rem; }
.mobile-menu a { color: var(--text); text-decoration: none; padding: .8rem; border-radius: .7rem; }
.mobile-menu a:hover { background: rgba(255,255,255,.06); }

/* Hero */
.hero { padding: 5.5rem 0 3rem; position: relative; }
.hero-inner { display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; gap: 2rem; }
.hero-copy h1 { font-size: clamp(1.9rem, 3.2vw, 3rem); line-height: 1.05; margin: 0 0 1rem; }
.lead { color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.15rem); margin: 0 0 1.2rem; }
.hero-cta { display: flex; gap: .7rem; flex-wrap: wrap; }
.hero-badges { display: flex; gap: .6rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.badge { display: inline-block; background: #161e2d; border: 1px solid #2a3346; color: var(--muted); padding: .4rem .6rem; border-radius: 999px; font-size: .85rem; }

.phone-mock { width: 260px; height: 420px; border-radius: 1.9rem; background: linear-gradient(180deg,#0e1422,#111a2a); border: 1px solid #2a3346; box-shadow: 0 28px 70px rgba(0,0,0,.45), inset 0 0 0 5px #0a0f16; margin: 0 auto; }
.screen { position: relative; margin: 12px; height: calc(100% - 24px); border-radius: 1.35rem; background: #0b1220; overflow: hidden; }
.pill { width: 50%; height: 18px; margin: 10px auto; border-radius: 999px; background: rgba(255,255,255,.06); }
.phone-screen-image { position: absolute; top: 12px; left: 10px; width: calc(100% - 20px); height: calc(100% - 28px); object-fit: cover; object-position: center 54%; border-radius: 1.1rem; box-shadow: inset 0 0 0 1px rgba(255,255,255,.08); }
.screen .grid { display: none; }

/* Sections */
.section { padding: 3rem 0; }
.section.alt { background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0)); border-top: 1px solid rgba(255,255,255,.06); border-bottom: 1px solid rgba(255,255,255,.06); }
.section-title { font-size: clamp(1.4rem, 2.5vw, 2rem); margin: 0 0 1.4rem; }

.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.card { background: var(--card); border: 1px solid var(--ring); border-radius: 1rem; padding: 1rem; box-shadow: 0 10px 30px rgba(0,0,0,.25); }
.card h3 { margin: 0 0 .5rem; }
.card p { color: var(--muted); margin: 0; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.step { background: #0f1626; border: 1px solid #22304a; border-radius: 1rem; padding: 1rem; position: relative; }
.step-num { position: absolute; top: -12px; left: -12px; width: 36px; height: 36px; display: grid; place-items: center; border-radius: .7rem; background: linear-gradient(90deg, var(--brand), var(--brand-2)); color: #0a0f16; font-weight: 800; box-shadow: 0 10px 30px rgba(0,0,0,.3); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; align-items: start; }
.col p { color: var(--muted); }

/* Banner */
.banner { padding: 2.2rem 0; }
.banner-inner { display: flex; gap: 1rem; align-items: center; justify-content: space-between; background: linear-gradient(90deg, rgba(106,168,255,.12), rgba(124,247,212,.12)); border: 1px solid #2a3346; border-radius: 1.2rem; padding: 1.2rem; }

/* Contact */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* Footer */
.site-footer { border-top: 1px solid rgba(255,255,255,.06); padding: 1.2rem 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; }
.backtop { color: var(--muted); text-decoration: none; }
.backtop:hover { color: var(--text); }

/* Responsive */
@media (max-width: 960px) {
  .header-inner { grid-template-columns: auto 1fr auto; }
  .nav { display: none; }
  .hamburger { display: block; }
  .hero-inner { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2,1fr); }
  .steps { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .banner-inner { flex-direction: column; align-items: stretch; }
}