:root {
  --bg: #070914;
  --bg-card: #12162a;
  --text: #ffffff;
  --muted: #b7bed4;
  --line: rgba(255, 255, 255, 0.12);
  --brand: #38e8b0;
  --brand-2: #4f7cff;
  --danger: #ff4fa3;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 24px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56, 232, 176, 0.13), transparent 30%),
    radial-gradient(circle at top right, rgba(79, 124, 255, 0.17), transparent 34%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.container {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 9, 20, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.04em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.logo-dot {
  width: 15px;
  height: 15px;
  border-radius: 999px;
  display: inline-block;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 22px rgba(56, 232, 176, 0.8);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a:hover,
.active-link {
  color: var(--text) !important;
}

.nav-cta {
  color: #061015 !important;
  background: var(--brand);
  padding: 11px 18px;
  border-radius: 999px;
  box-shadow: 0 10px 28px rgba(56, 232, 176, 0.25);
}

.menu-btn {
  display: none;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  color: white;
  font-size: 24px;
  width: 46px;
  height: 42px;
  border-radius: 14px;
  cursor: pointer;
}

.mobile-menu {
  display: none;
  border-top: 1px solid var(--line);
  padding: 14px 18px 22px;
  background: rgba(7, 9, 20, 0.97);
}

.mobile-menu a {
  display: block;
  padding: 13px 4px;
  color: var(--muted);
  font-weight: 800;
}

.hero {
  padding: 84px 0 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  padding: 9px 14px;
  border: 1px solid rgba(56, 232, 176, 0.35);
  background: rgba(56, 232, 176, 0.08);
  color: var(--brand);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 900;
  margin-bottom: 22px;
}

h1 {
  font-size: clamp(42px, 6vw, 78px);
  line-height: 0.95;
  letter-spacing: -0.075em;
  margin-bottom: 24px;
}

.hero-text {
  color: var(--muted);
  font-size: 20px;
  max-width: 650px;
  margin-bottom: 30px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 900;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand), #8bffd8);
  color: #061015;
  box-shadow: 0 18px 38px rgba(56, 232, 176, 0.22);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.075);
  color: white;
  border: 1px solid var(--line);
}

.small-note {
  color: #8992af;
  font-size: 14px;
}

.hero-card {
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: min(100%, 390px);
  min-height: 540px;
  padding: 20px;
  border-radius: 40px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.05)),
    #101426;
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.phone-mockup::before {
  content: "";
  position: absolute;
  width: 260px;
  height: 260px;
  top: -80px;
  right: -90px;
  background: rgba(56, 232, 176, 0.2);
  border-radius: 999px;
  filter: blur(8px);
}

.phone-top {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 24px;
}

.phone-top span:first-child {
  width: 34px;
  height: 8px;
  background: rgba(255, 255, 255, 0.28);
  border-radius: 999px;
}

.online-dot {
  width: 12px;
  height: 12px;
  background: var(--brand);
  border-radius: 999px;
  box-shadow: 0 0 20px rgba(56, 232, 176, 0.9);
}

.chat-list {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

.chat-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--line);
}

.chat-row.active {
  background: rgba(56, 232, 176, 0.14);
  border-color: rgba(56, 232, 176, 0.35);
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: 17px;
  background: linear-gradient(135deg, var(--danger), var(--brand-2));
  display: grid;
  place-items: center;
  font-weight: 900;
}

.chat-row p {
  color: var(--muted);
  font-size: 14px;
}

.phone-btn {
  position: absolute;
  z-index: 2;
  left: 20px;
  right: 20px;
  bottom: 22px;
  min-height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: var(--brand);
  color: #061015;
  font-weight: 900;
}

.trust-strip {
  padding: 26px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

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

.strip-grid div {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.045);
}

.strip-grid strong {
  display: block;
  margin-bottom: 4px;
}

.strip-grid span {
  color: var(--muted);
  font-size: 14px;
}

.content-section {
  padding: 82px 0;
}

.alt-bg {
  background: rgba(255, 255, 255, 0.035);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 0.82fr;
  gap: 44px;
  align-items: center;
}

.two-col.reverse {
  grid-template-columns: 0.82fr 1fr;
}

h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1;
  letter-spacing: -0.055em;
  margin-bottom: 18px;
}

p {
  color: var(--muted);
  margin-bottom: 16px;
}

.info-card,
.feature-card,
.tip,
details,
.final-cta {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.2);
}

.info-card {
  padding: 30px;
}

.info-card h3 {
  font-size: 24px;
  margin-bottom: 18px;
}

.info-card ul {
  list-style: none;
  display: grid;
  gap: 10px;
}

.info-card li {
  color: var(--muted);
  padding: 11px 13px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.055);
}

.dark-card {
  background:
    radial-gradient(circle at top right, rgba(56, 232, 176, 0.18), transparent 40%),
    var(--bg-card);
}

.full-btn {
  width: 100%;
  margin-top: 10px;
}

.section-heading {
  max-width: 780px;
  margin: 0 auto 34px;
  text-align: center;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.feature-card {
  padding: 28px;
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 10px;
}

.feature-card a {
  color: var(--brand);
  font-weight: 900;
}

.tips-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.tip {
  padding: 22px;
}

.tip span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  align-items: center;
  justify-content: center;
  background: rgba(56, 232, 176, 0.12);
  color: var(--brand);
  font-weight: 900;
  margin-bottom: 18px;
}

.faq-wrap {
  max-width: 920px;
}

.faq-list {
  display: grid;
  gap: 14px;
}

details {
  padding: 22px 24px;
}

summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 900;
}

details p {
  margin-top: 14px;
  margin-bottom: 0;
}

.final-cta {
  margin-top: 34px;
  padding: 36px;
  text-align: center;
  background:
    radial-gradient(circle at center top, rgba(56, 232, 176, 0.18), transparent 44%),
    var(--bg-card);
}

.site-footer {
  padding: 56px 0 24px;
  background: #050711;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.5fr 0.5fr;
  gap: 36px;
}

.footer-logo {
  margin-bottom: 14px;
}

.site-footer h4 {
  margin-bottom: 12px;
}

.site-footer a {
  display: block;
  color: var(--muted);
  margin-bottom: 9px;
}

.site-footer a:hover {
  color: white;
}

.copyright {
  margin-top: 34px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: #7e87a4;
  font-size: 14px;
}

@media (max-width: 1040px) {
  .nav-links {
    gap: 12px;
    font-size: 13px;
  }
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }

  .menu-btn {
    display: block;
  }

  .mobile-menu.show {
    display: block;
  }

  .hero {
    padding-top: 56px;
  }

  .hero-grid,
  .two-col,
  .two-col.reverse {
    grid-template-columns: 1fr;
  }

  .hero-card {
    order: -1;
  }

  .phone-mockup {
    min-height: 470px;
  }

  .strip-grid,
  .cards-grid,
  .tips-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .section-heading {
    text-align: left;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 26px, 1120px);
  }

  .hero {
    padding-bottom: 50px;
  }

  h1 {
    font-size: 43px;
  }

  .hero-text {
    font-size: 17px;
  }

  .btn {
    width: 100%;
  }

  .content-section {
    padding: 58px 0;
  }

  .phone-mockup {
    border-radius: 30px;
  }
}