@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("./fonts/poppins-v24-latin-regular.woff2") format("woff2");
}

@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("./fonts/poppins-v24-latin-500.woff2") format("woff2");
}

@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("./fonts/poppins-v24-latin-600.woff2") format("woff2");
}

@font-face {
  font-family: "Poppins";
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url("./fonts/poppins-v24-latin-800.woff2") format("woff2");
}

:root {
  --bg: #0b0f19;
  --surface: #182135;
  --surface-deep: #0f1727;
  --primary: #00f2fe;
  --secondary: #4facfe;
  --text: #f8fafc;
  --muted: #a7b4c6;
  --line: rgba(255, 255, 255, 0.08);
  --glow: 0 0 28px rgba(0, 242, 254, 0.22);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Poppins", Arial, sans-serif;
  line-height: 1.75;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  padding: 14px 5%;
  border-bottom: 1px solid var(--line);
  background: rgba(11, 15, 25, 0.9);
  backdrop-filter: blur(12px);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.22rem;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.logo-mark {
  color: var(--primary);
  font-size: 1.45rem;
  text-shadow: var(--glow);
}

.logo span {
  color: var(--primary);
}

.header-phone,
.primary-button,
.secondary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.header-phone,
.primary-button {
  padding: 11px 23px;
  background: linear-gradient(45deg, var(--secondary), var(--primary));
  color: #031219;
  box-shadow: var(--glow);
}

.secondary-button {
  padding: 11px 23px;
  border: 2px solid var(--primary);
  color: var(--text);
}

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

.secondary-button:hover {
  background: rgba(0, 242, 254, 0.1);
  box-shadow: var(--glow);
}

.hero {
  position: relative;
  display: grid;
  min-height: 72vh;
  place-items: center;
  overflow: hidden;
  padding: 140px 5% 72px;
  text-align: center;
}

.hero::before {
  position: absolute;
  z-index: -1;
  width: min(720px, 92vw);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.16), rgba(11, 15, 25, 0) 70%);
  content: "";
}

.hero-inner {
  width: min(1020px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.25rem, 6vw, 4.4rem);
  font-weight: 800;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

h1 .accent {
  background: linear-gradient(90deg, var(--secondary), var(--primary));
  background-clip: text;
  color: transparent;
}

.hero-copy {
  max-width: 760px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.7vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 30px;
}

.article-area {
  padding: 56px 5% 84px;
}

.article-shell {
  width: min(920px, 100%);
  margin: 0 auto;
}

.accordion details {
  overflow: hidden;
  margin-bottom: 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.accordion details[open] {
  border-color: rgba(0, 242, 254, 0.34);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.17);
}

.accordion summary {
  position: relative;
  display: flex;
  min-height: 68px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 22px;
  cursor: pointer;
  font-size: clamp(1rem, 2vw, 1.12rem);
  font-weight: 600;
  line-height: 1.45;
  list-style: none;
  user-select: none;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary::after {
  flex: 0 0 auto;
  color: var(--primary);
  content: "+";
  font-size: 1.55rem;
  font-weight: 400;
  line-height: 1;
  transition: transform 180ms ease;
}

.accordion details[open] summary {
  border-bottom: 1px solid rgba(0, 242, 254, 0.22);
  background: rgba(0, 242, 254, 0.045);
  color: var(--primary);
}

.accordion details[open] summary::after {
  transform: rotate(45deg);
}

.accordion-content {
  padding: 22px;
}

.accordion-content p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 1rem;
}

.accordion-content p:last-child {
  margin-bottom: 0;
}

.accordion-content strong {
  color: var(--text);
  font-weight: 600;
}

.action-banner {
  padding: 72px 5%;
  border-block: 1px solid rgba(0, 242, 254, 0.18);
  background: linear-gradient(90deg, var(--surface), var(--surface-deep));
  text-align: center;
}

.action-banner h2 {
  margin: 0;
  font-size: clamp(1.65rem, 4vw, 2.6rem);
  line-height: 1.25;
}

.action-banner p {
  max-width: 660px;
  margin: 14px auto 25px;
  color: var(--muted);
}

.site-footer {
  padding: 34px 5%;
  background: #06090f;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

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

  .logo {
    font-size: 1rem;
  }

  .header-phone {
    min-height: 40px;
    padding: 9px 14px;
    font-size: 0.86rem;
  }

  .hero {
    min-height: 68vh;
    padding-top: 116px;
  }

  .hero-actions {
    display: grid;
  }

  .article-area {
    padding-inline: 4%;
  }

  .accordion summary,
  .accordion-content {
    padding: 16px;
  }
}