:root {
  --bg: #0b1020;
  --bg-elev: #121938;
  --panel: #131a3a;
  --text: #e6e8f0;
  --muted: #a9b0c6;
  --primary: #ef4444;       /* red-500 */
  --primary-600: #dc2626;   /* red-600 */
  --primary-700: #b91c1c;   /* red-700 */
  --secondary: #f43f5e;     /* rose-500 */
  --accent: #fb7185;        /* rose-400 */
  --success: #16a34a;
  --warning: #f59e0b;
  --danger: #ef4444;
  --card: rgba(255,255,255,0.04);
  --border: rgba(255,255,255,0.08);
  --shadow: 0 10px 30px rgba(2, 6, 23, 0.5);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1800px 1200px at -15% -25%, rgba(239, 68, 68, 0.22), transparent 70%),
              radial-gradient(2200px 1400px at 115% -20%, rgba(244, 63, 94, 0.18), transparent 70%),
              var(--bg);
  background-repeat: no-repeat, no-repeat, no-repeat;
  background-position: center top, right top, center;
  line-height: 1.6;
}

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

.section {
  padding: 72px 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(120%) blur(10px);
  background: linear-gradient(to bottom, rgba(11,16,32,0.8), rgba(11,16,32,0.6));
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 700; letter-spacing: 0.2px; }
.logo-img { width: 28px; height: 28px; border-radius: 6px; box-shadow: 0 6px 16px rgba(239,68,68,.25); }
.logo-img.small { width: 20px; height: 20px; border-radius: 4px; box-shadow: none; }
.logo-text { font-weight: 800; font-size: 18px; }

.main-nav { display: flex; align-items: center; gap: 20px; }
.main-nav ul { list-style: none; padding: 0; margin: 0; display: flex; gap: 16px; }
.main-nav a { color: var(--muted); text-decoration: none; font-weight: 500; padding: 8px 10px; border-radius: 8px; }
.main-nav a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.nav-toggle { display: none; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 16px; border-radius: 12px; text-decoration: none; font-weight: 600; border: 1px solid transparent; cursor: pointer; transition: .2s ease; }
.btn-small { padding: 8px 12px; border-radius: 10px; font-size: 14px; }
.btn-block { width: 100%; }
.btn-primary { color: white; background: linear-gradient(135deg, var(--primary), var(--secondary)); box-shadow: var(--shadow); }
.btn-primary:hover { filter: brightness(1.05); transform: translateY(-1px); }
.btn-secondary { color: white; background: var(--primary-600); }
.btn-secondary:hover { background: var(--primary-700); }
.btn-ghost { color: var(--text); background: transparent; border-color: var(--border); }
.btn-ghost:hover { background: rgba(255,255,255,0.05); }
.header-cta { margin-left: 8px; }

.hero { position: relative; padding: 160px 0 160px; min-height: clamp(720px, 90vh, 960px); overflow: hidden; background-image: url('neosing_mockup.png'); background-size: auto 100%; background-position: right center; background-repeat: no-repeat; }
.grid-2 { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 36px; align-items: center; }
.hero .grid-2 { grid-template-columns: 1fr; }
.hero-title { font-size: clamp(48px, 6.5vw, 80px); line-height: 1.04; margin: 0 0 12px; letter-spacing: -0.02em; text-shadow: 0 6px 24px rgba(0,0,0,0.25); }
.hero-subtitle { font-size: clamp(20px, 2.2vw, 28px); color: var(--muted); margin: 0 0 28px; text-shadow: 0 4px 18px rgba(0,0,0,0.25); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(1000px 500px at 10% 10%, rgba(11,16,32,0.2), transparent 60%); pointer-events: none; }
.hero-content { position: relative; z-index: 1; max-width: 760px; }

.about .features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 20px; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px; }
.feature-icon svg { width: 28px; height: 28px; display: block; }
.feature h3 { margin: 8px 0 6px; }

.section h2 { font-size: 32px; margin: 0 0 4px; letter-spacing: -0.01em; }
.section-kicker { color: var(--muted); margin: 0 0 16px; }

.pricing-head { display: flex; align-items: end; justify-content: space-between; gap: 16px; }
.plans { display: grid; grid-template-columns: 1fr; gap: 16px; }
.plan-card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px; display: grid; gap: 8px; }
.plan-card.best { border-color: rgba(239,68,68,0.45); box-shadow: 0 0 0 1px rgba(239,68,68,0.25); }
.plan-header { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.plan-header h3 { margin: 0; font-size: 20px; }
.price { font-size: 28px; font-weight: 800; letter-spacing: -0.02em; }
.desc { color: var(--muted); }
.plan-actions { margin-top: 4px; display: flex; justify-content: flex-end; }
.badge { display: inline-block; margin-left: 10px; padding: 3px 8px; border-radius: 999px; font-size: 12px; font-weight: 700; color: white; background: linear-gradient(135deg, var(--primary), var(--secondary)); }

.downloads .card.note { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px; }
.download-actions { display: flex; gap: 12px; margin: 12px 0; flex-wrap: wrap; }

.accordion { display: grid; gap: 10px; }
.accordion-item { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 0 14px; }
.accordion-item summary { cursor: pointer; list-style: none; padding: 14px 2px; font-weight: 600; }
.accordion-item[open] summary { color: var(--accent); }
.accordion-content { padding: 0 2px 14px; color: var(--muted); }

/* Контакты — только кнопка справа от заголовка */
.contact .contact-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.contact .contact-note { color: var(--muted); margin-top: 8px; }
/* удалена форма */

.muted { color: var(--muted); }
.small { font-size: 12px; }

.site-footer { border-top: 1px solid var(--border); background: rgba(255,255,255,0.02); padding: 20px 0; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.footer-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--muted); }
.footer-note { color: var(--muted); font-size: 14px; }

/* Responsive */
@media (max-width: 1120px) {
  .grid-2 { grid-template-columns: 1fr; }
  .hero { background-size: 90% auto; background-position: right center; padding: 120px 0; min-height: 70vh; }
  .contact .contact-head { display: grid; grid-template-columns: 1fr; gap: 12px; }
  .contact .contact-head #contact-tg { width: 100%; justify-content: center; }
}
@media (max-width: 600px) {
  .hero { background-size: 90% auto; background-position: right center; padding: 112px 0; }
}
@media (max-width: 760px) {
  .main-nav ul { display: none; position: absolute; top: 64px; left: 0; right: 0; padding: 12px 4%; background: rgba(11,16,32,0.95); border-bottom: 1px solid var(--border); }
  .main-nav ul.open { display: flex; flex-direction: column; gap: 8px; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; height: 36px; padding: 0 12px; border-radius: 10px; border: 1px solid var(--border); background: rgba(255,255,255,0.03); color: var(--text); font-weight: 600; }
  .about .features { grid-template-columns: 1fr; }
}