:root {
  --bg: #0a0e1f;
  --bg-2: #0f1530;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-2: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --text: #e7eaf6;
  --text-dim: #9aa3c0;
  --accent: #6366f1;
  --accent-2: #22d3ee;
  --accent-3: #a855f7;
  --success: #10b981;
  --radius: 16px;
  --radius-lg: 24px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

h1, h2, h3 {
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 .5em;
  line-height: 1.15;
}

h1 { font-size: clamp(34px, 5.5vw, 64px); font-weight: 800; }
h2 { font-size: clamp(28px, 3.8vw, 44px); }
h3 { font-size: 20px; }

.wrap {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 22px;
}
.wrap--narrow { max-width: 820px; }

/* ====== Topbar ====== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 31, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.topbar__inner {
  display: flex;
  align-items: center;
  gap: 28px;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.01em;
}
.logo__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 0 16px var(--accent);
}
.logo__accent {
  color: var(--accent-2);
  margin-left: 4px;
}
.topnav {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 15px;
  color: var(--text-dim);
}
.topnav a:hover { color: var(--text); }
@media (max-width: 760px) { .topnav { display: none; } }

/* ====== Buttons ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 12px;
  font-weight: 600;
  font-size: 15px;
  transition: all .2s ease;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: white;
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.35);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(99, 102, 241, 0.5); }
.btn--ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover { background: var(--surface-2); border-color: rgba(255,255,255,0.15); }
.btn--small { padding: 9px 16px; font-size: 14px; }
.btn--big { padding: 16px 28px; font-size: 17px; }

/* ====== Hero ====== */
.hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: float 20s ease-in-out infinite;
}
.blob--1 { width: 480px; height: 480px; background: var(--accent); top: -120px; left: -100px; }
.blob--2 { width: 380px; height: 380px; background: var(--accent-3); top: 40px; right: -80px; animation-delay: -7s; }
.blob--3 { width: 320px; height: 320px; background: var(--accent-2); bottom: -120px; left: 30%; animation-delay: -14s; }
@keyframes float {
  0%,100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(40px, 30px) scale(1.05); }
  66% { transform: translate(-30px, 50px) scale(0.95); }
}
.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 900px;
  text-align: center;
}
.pill {
  display: inline-block;
  padding: 7px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 24px;
  backdrop-filter: blur(10px);
}
.hero h1 {
  background: linear-gradient(135deg, #fff 0%, #c8cdef 60%, #8b91c4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__lead {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-dim);
  max-width: 640px;
  margin: 18px auto 36px;
}
.hero__cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 50px;
}
.hero__hint { font-size: 13px; color: var(--text-dim); }
.hero__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 580px;
  margin: 0 auto;
}
.hero__stats > div {
  padding: 20px 14px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
  backdrop-filter: blur(10px);
}
.hero__stats b {
  display: block;
  font-size: 26px;
  font-weight: 700;
  color: var(--accent-2);
  letter-spacing: -0.02em;
}
.hero__stats span {
  font-size: 12px;
  color: var(--text-dim);
  display: block;
  margin-top: 4px;
}
@media (max-width: 540px) {
  .hero__stats { grid-template-columns: 1fr; }
}

/* ====== Sections ====== */
.section {
  padding: 90px 0;
  position: relative;
}
.section--alt {
  background: var(--bg-2);
}
.section h2 {
  text-align: center;
  margin-bottom: 12px;
}
.section__lead {
  text-align: center;
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 44px;
}
.section h2 + .steps,
.section h2 + .features,
.section h2 + .tariffs,
.section h2 + .feed { margin-top: 48px; }

/* ====== Steps ====== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.step {
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  position: relative;
  transition: all .3s ease;
}
.step:hover { transform: translateY(-4px); border-color: rgba(99,102,241,0.3); }
.step__num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}
.step h3 { margin-bottom: 8px; }
.step p { color: var(--text-dim); margin: 0; }

/* ====== Features ====== */
.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 920px) { .features { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .features { grid-template-columns: 1fr; } }
.feature {
  padding: 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all .3s ease;
}
.feature:hover { border-color: rgba(34,211,238,0.3); }
.feature__icon { font-size: 28px; margin-bottom: 12px; }
.feature h3 { margin-bottom: 6px; }
.feature p { color: var(--text-dim); margin: 0; font-size: 15px; }

/* ====== Live feed ====== */
.feed {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 760px;
  margin: 0 auto;
}
.feed__item {
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  display: flex;
  align-items: center;
  gap: 14px;
  animation: feedIn .5s ease;
  transition: background .3s ease;
}
.feed__item--fresh {
  border-color: rgba(34,211,238,0.4);
  background: rgba(34, 211, 238, 0.06);
}
@keyframes feedIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
.feed__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 12px var(--success);
  flex-shrink: 0;
  animation: pulse 2s ease infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.feed__text { flex: 1; font-size: 15px; }
.feed__text b { color: var(--accent-2); font-weight: 600; }
.feed__text .feed__part { color: var(--text); }
.feed__time {
  font-size: 13px;
  color: var(--text-dim);
  flex-shrink: 0;
}
.feed__empty {
  text-align: center;
  color: var(--text-dim);
  padding: 30px;
}
@media (max-width: 540px) {
  .feed__item { flex-wrap: wrap; padding: 12px 14px; font-size: 14px; }
  .feed__time { font-size: 12px; margin-left: auto; }
}

/* ====== Tariffs ====== */
.tariffs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
@media (max-width: 920px) { .tariffs { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; } }
.tariff {
  padding: 32px 26px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative;
  display: flex;
  flex-direction: column;
}
.tariff--featured {
  background: linear-gradient(180deg, rgba(99,102,241,0.12), rgba(168,85,247,0.08));
  border-color: rgba(99,102,241,0.4);
  transform: scale(1.03);
  box-shadow: 0 20px 60px rgba(99,102,241,0.2);
}
@media (max-width: 920px) {
  .tariff--featured { transform: none; }
}
.badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
  color: white;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}
.tariff h3 { margin-bottom: 4px; }
.tariff__price {
  font-size: 32px;
  font-weight: 800;
  margin: 10px 0 18px;
  letter-spacing: -0.02em;
}
.tariff__soon {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-dim);
}
.tariff ul {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  flex: 1;
}
.tariff li {
  padding: 8px 0 8px 24px;
  position: relative;
  color: var(--text-dim);
  font-size: 15px;
}
.tariff li b { color: var(--text); }
.tariff li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-2);
  font-weight: 700;
}

/* ====== FAQ ====== */
.faq {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 10px;
  overflow: hidden;
}
.faq summary {
  padding: 18px 22px;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  position: relative;
  padding-right: 50px;
  transition: background .2s ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: var(--surface-2); }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 22px;
  color: var(--text-dim);
  transition: transform .2s ease;
}
.faq[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq p {
  padding: 0 22px 20px;
  margin: 0;
  color: var(--text-dim);
}
.faq a { color: var(--accent-2); text-decoration: underline; }

/* ====== CTA bottom ====== */
.cta {
  padding: 80px 0;
  text-align: center;
  background: linear-gradient(180deg, transparent, rgba(99,102,241,0.08));
}
.cta__inner { max-width: 600px; margin: 0 auto; }
.cta p { color: var(--text-dim); margin-bottom: 28px; }

/* ====== Footer ====== */
.footer {
  border-top: 1px solid var(--border);
  padding: 50px 0 24px;
  background: var(--bg-2);
}
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 36px;
}
@media (max-width: 720px) { .footer__inner { grid-template-columns: 1fr; gap: 28px; } }
.footer__brand { font-weight: 700; font-size: 17px; margin-bottom: 12px; }
.footer__small { color: var(--text-dim); font-size: 13px; line-height: 1.7; }
.footer__title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin-bottom: 12px;
}
.footer a {
  display: block;
  color: var(--text-dim);
  font-size: 14px;
  padding: 4px 0;
  transition: color .2s ease;
}
.footer a:hover { color: var(--text); }
.footer__copy {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* ====== Doc pages (offer/privacy) ====== */
.doc {
  padding: 60px 0 80px;
  max-width: 820px;
  margin: 0 auto;
}
.doc h1 { font-size: 32px; margin-bottom: 8px; }
.doc .doc__meta {
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 36px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.doc h2 { font-size: 22px; margin-top: 36px; margin-bottom: 14px; }
.doc h3 { font-size: 18px; margin-top: 24px; margin-bottom: 8px; }
.doc p, .doc li { color: var(--text-dim); }
.doc ol, .doc ul { padding-left: 22px; }
.doc li { margin-bottom: 6px; }
.doc strong { color: var(--text); }
.doc a { color: var(--accent-2); text-decoration: underline; }
.doc__back {
  display: inline-block;
  margin-bottom: 24px;
  color: var(--accent-2);
  font-size: 14px;
}