:root {
  --bg: #08090b;
  --panel: rgba(255, 255, 255, 0.075);
  --panel-strong: rgba(255, 255, 255, 0.11);
  --line: rgba(255, 255, 255, 0.15);
  --text: #f4f1ea;
  --muted: rgba(244, 241, 234, 0.66);
  --accent: #e33442;
  --radius: 8px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 0%, rgba(227, 52, 66, 0.2), transparent 28rem),
    linear-gradient(180deg, #07080a 0%, #101114 52%, #07080a 100%);
  font-family: Onest, Arial, sans-serif;
  line-height: 1.48;
}

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

button {
  font: inherit;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  z-index: 10;
  inset: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 68px;
  padding: 12px max(24px, calc((100vw - var(--container)) / 2));
  background: rgba(8, 9, 11, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 600;
}

.brand img {
  width: 32px;
  height: 38px;
  object-fit: contain;
}

nav {
  display: flex;
  gap: clamp(18px, 2.4vw, 34px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

.header-phone {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 650px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 9, 11, 0.9) 0%, rgba(8, 9, 11, 0.67) 48%, rgba(8, 9, 11, 0.24) 100%),
    linear-gradient(180deg, rgba(8, 9, 11, 0.04), rgba(8, 9, 11, 0.76)),
    url("./assets/hero.png") center right / cover no-repeat;
  filter: grayscale(0.08) saturate(1) contrast(1.05);
}

.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(400px, 0.7fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
  padding: 130px 0 72px;
}

.eyebrow,
.panel-title,
.pay-row span,
.intro span {
  color: rgba(244, 241, 234, 0.58);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-size: clamp(42px, 5.4vw, 70px);
  line-height: 1.03;
  font-weight: 590;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(31px, 4vw, 48px);
  line-height: 1.08;
  font-weight: 590;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.16;
}

.hero-copy p {
  max-width: 560px;
  color: var(--muted);
  font-size: 19px;
}

.pay-panel,
.specialty-card,
.intro article,
.faq article,
.contact-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(18px);
}

.pay-panel {
  display: grid;
  gap: 8px;
  padding: 20px;
}

.panel-title {
  margin-bottom: 4px;
  color: var(--accent);
}

.pay-row {
  display: grid;
  grid-template-columns: 128px 1fr;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.pay-row strong {
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.08;
  white-space: nowrap;
}

.section {
  padding: 42px 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.intro article {
  padding: 20px;
}

.intro strong {
  display: block;
  margin: 6px 0 8px;
  font-size: 22px;
}

.intro p,
.specialty-card p,
.faq p,
.contacts p {
  color: var(--muted);
}

.section-head {
  margin-bottom: 22px;
}

.specialty-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.specialty-card {
  min-height: 230px;
  padding: 20px;
}

.specialty-card button {
  margin-top: 8px;
  padding: 0;
  color: #ff6470;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-weight: 600;
}

.details {
  display: grid;
  grid-template-rows: 0fr;
  opacity: 0;
  transition: grid-template-rows 0.28s ease, opacity 0.22s ease;
}

.details > p {
  overflow: hidden;
  margin: 10px 0 0;
}

.specialty-card.is-open .details {
  grid-template-rows: 1fr;
  opacity: 1;
}

.faq-grid,
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(360px, 1fr);
  gap: clamp(22px, 5vw, 60px);
}

.faq-list {
  display: grid;
  gap: 10px;
}

.faq article,
.contact-card {
  padding: 20px;
}

.contact-card {
  display: grid;
  gap: 8px;
}

.phone {
  font-size: clamp(22px, 3vw, 31px);
  line-height: 1.08;
  font-weight: 620;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 10px;
}

.actions a {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  padding: 10px 15px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: var(--radius);
  font-weight: 500;
}

.actions .primary {
  background: var(--accent);
  border-color: rgba(255, 255, 255, 0.14);
  font-weight: 600;
}

.main-link {
  width: max-content;
  margin-top: 8px;
  color: #ff6470;
  font-weight: 600;
}

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

  .hero-grid,
  .intro-grid,
  .specialty-grid,
  .faq-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .specialty-grid {
    gap: 10px;
  }
}

@media (max-width: 640px) {
  .container {
    width: calc(100% - 42px);
  }

  .site-header {
    position: absolute;
    min-height: 66px;
    padding: 13px 21px;
  }

  .brand span {
    font-size: 0;
  }

  .brand span::after {
    content: "Специальности";
    font-size: 15px;
  }

  .header-phone {
    font-size: 13px;
  }

  .hero {
    min-height: auto;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(8, 9, 11, 0.72) 0%, rgba(8, 9, 11, 0.54) 45%, rgba(8, 9, 11, 0.94) 100%),
      url("./assets/hero.png") 85% center / cover no-repeat;
  }

  .hero-grid {
    padding: 88px 0 38px;
  }

  h1 {
    font-size: clamp(34px, 10vw, 42px);
  }

  .hero-copy p {
    font-size: 16px;
  }

  .pay-panel {
    padding: 16px;
  }

  .pay-row {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .pay-row strong {
    font-size: clamp(24px, 7vw, 31px);
  }

  .section {
    padding: 32px 0;
  }

  .specialty-card,
  .intro article,
  .faq article,
  .contact-card {
    padding: 17px;
  }
}