:root {
  --ink: #12232e;
  --muted: #59717c;
  --line: #d9e7e9;
  --paper: #ffffff;
  --mist: #eef8f7;
  --cyan: #08a9c7;
  --cyan-dark: #047a97;
  --lime: #b9ee45;
  --navy: #0d2f3a;
  --shadow: 0 24px 70px rgba(11, 62, 75, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  display: block;
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 16px clamp(20px, 5vw, 72px);
  border-bottom: 1px solid rgba(217, 231, 233, 0.72);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
}

.brand,
.site-nav,
.hero-actions,
.plan-meta,
.site-footer,
.trust-strip {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  color: var(--navy);
  font-size: 1.08rem;
  font-weight: 800;
}

.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  box-shadow: 0 10px 22px rgba(13, 47, 58, 0.14);
}

.site-nav {
  gap: clamp(16px, 3vw, 34px);
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
}

.site-nav a:hover {
  color: var(--cyan-dark);
}

.nav-cta,
.primary-button,
.secondary-button {
  min-height: 46px;
  border-radius: 999px;
  font-weight: 800;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background 180ms ease;
}

.nav-cta,
.primary-button {
  background: var(--ink);
  color: #ffffff;
  box-shadow: 0 12px 28px rgba(18, 35, 46, 0.18);
}

.nav-cta {
  padding: 12px 19px;
  font-size: 0.92rem;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 22px;
}

.secondary-button {
  border: 1px solid var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.82);
}

.nav-cta:hover,
.primary-button:hover,
.secondary-button:hover {
  transform: translateY(-2px);
}

.primary-button:hover,
.nav-cta:hover {
  background: var(--cyan-dark);
  box-shadow: 0 16px 34px rgba(4, 122, 151, 0.24);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.14fr) minmax(340px, 0.86fr);
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  min-height: min(640px, calc(100svh - 156px));
  padding: clamp(40px, 6vw, 72px) clamp(20px, 5vw, 72px) 34px;
  overflow: hidden;
}

.hero::before {
  position: absolute;
  inset: 0;
  z-index: -2;
  content: "";
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.84) 46%, rgba(238, 248, 247, 0.48) 100%),
    radial-gradient(circle at 78% 18%, rgba(185, 238, 69, 0.22), transparent 24%),
    radial-gradient(circle at 48% 88%, rgba(8, 169, 199, 0.12), transparent 28%);
}

.hero-copy {
  max-width: 690px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--cyan-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 20px;
  color: var(--navy);
  font-size: clamp(3rem, 6.2vw, 5.8rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  max-width: 760px;
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(2rem, 4.8vw, 4.4rem);
  line-height: 1;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  color: var(--navy);
  font-size: 1.24rem;
  line-height: 1.15;
}

.hero-text {
  max-width: 610px;
  margin-bottom: 30px;
  color: var(--muted);
  font-size: clamp(1.05rem, 1.8vw, 1.32rem);
}

.hero-actions {
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 34px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  max-width: 620px;
  margin: 0;
}

.hero-stats div {
  min-width: 0;
  padding: 16px;
  border: 1px solid rgba(217, 231, 233, 0.85);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.62);
}

.hero-stats dt {
  margin-bottom: 2px;
  color: var(--navy);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 900;
}

.hero-stats dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero-visual {
  min-width: 0;
}

.hero-visual img {
  width: min(100%, 780px);
  margin-left: auto;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.trust-strip {
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 18px clamp(20px, 5vw, 72px);
  border-block: 1px solid var(--line);
  background: var(--mist);
}

.trust-strip span {
  padding: 8px 14px;
  border-radius: 999px;
  background: #ffffff;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 750;
}

.section {
  padding: clamp(68px, 9vw, 120px) clamp(20px, 5vw, 72px);
}

.section-heading {
  margin-bottom: clamp(28px, 4vw, 46px);
}

.plan-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.plan-card {
  min-height: 268px;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 16px 34px rgba(11, 62, 75, 0.07);
}

.plan-card-featured {
  border-color: rgba(8, 169, 199, 0.34);
  background: linear-gradient(145deg, #f7ffff 0%, #eff8f2 100%);
}

.plan-region {
  display: inline-flex;
  margin-bottom: 26px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--navy);
  color: #ffffff;
  font-size: 0.78rem;
  font-weight: 850;
}

.plan-card p:not(.plan-region) {
  color: var(--muted);
}

.plan-meta {
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.plan-meta span {
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--cyan-dark);
  font-size: 0.82rem;
  font-weight: 800;
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: clamp(28px, 5vw, 70px);
  background: #fbfdfc;
}

.steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 18px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

.steps span {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--lime);
  color: var(--navy);
  font-weight: 900;
}

.steps p,
.telegram-band p,
.faq p {
  color: var(--muted);
}

.telegram-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  margin: 0 clamp(20px, 5vw, 72px);
  padding: clamp(28px, 5vw, 52px);
  border-radius: 8px;
  background: var(--navy);
  color: #ffffff;
}

.telegram-band h2,
.telegram-band .eyebrow {
  color: #ffffff;
}

.telegram-band p {
  max-width: 720px;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.76);
}

.telegram-band .primary-button {
  flex: 0 0 auto;
  background: #ffffff;
  color: var(--navy);
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 920px;
}

details {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
}

summary {
  cursor: pointer;
  padding: 20px 22px;
  color: var(--navy);
  font-weight: 850;
}

details p {
  margin: 0;
  padding: 0 22px 22px;
}

.site-footer {
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(20px, 5vw, 72px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
}

@media (max-width: 980px) {
  .site-nav {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .hero-visual img {
    width: 100%;
    margin: 0;
  }

  .plan-grid,
  .split-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  .site-header {
    min-height: 68px;
    padding-inline: 16px;
  }

  .brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 9px;
  }

  .nav-cta {
    min-height: 40px;
    padding: 9px 14px;
  }

  .hero {
    padding: 44px 16px 30px;
  }

  h1 {
    font-size: clamp(2.7rem, 14vw, 4.2rem);
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .trust-strip,
  .section {
    padding-inline: 16px;
  }

  .plan-card {
    min-height: auto;
  }

  .telegram-band {
    align-items: stretch;
    flex-direction: column;
    margin-inline: 16px;
  }

  .steps li {
    grid-template-columns: 42px minmax(0, 1fr);
    padding: 18px;
  }

  .steps span {
    width: 42px;
    height: 42px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
    padding-inline: 16px;
  }
}