* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 18px);
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 18%, rgba(34, 211, 238, 0.18), transparent 28%),
    radial-gradient(circle at 86% 10%, rgba(52, 211, 153, 0.14), transparent 26%),
    radial-gradient(circle at 50% 100%, rgba(34, 211, 238, 0.08), transparent 34%),
    linear-gradient(180deg, #050814 0%, #08101f 45%, #071018 100%);
  min-height: 100vh;
  line-height: 1.5;
}

a {
  color: inherit;
}

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

.container {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

h1 {
  margin: 18px 0;
  font-size: clamp(34px, 5vw, 64px);
  line-height: 1.04;
  letter-spacing: -0.04em;
  color: #fff;
}

h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: #fff;
}

h3 {
  margin: 0 0 8px;
  font-size: 20px;
  color: #fff;
  letter-spacing: -0.02em;
}

p {
  margin: 0;
}

.kicker {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
  color: var(--accent);
  font-weight: 900;
  margin-bottom: 10px;
}

.section-head {
  max-width: 820px;
  margin: 0 auto 36px;
  text-align: center;
}

.section-sub {
  margin-top: 14px;
  color: var(--muted);
  font-size: 17px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 14px;
  font-weight: 800;
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
  cursor: pointer;
  min-height: 48px;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #041018;
  box-shadow: 0 12px 34px rgba(34, 211, 238, 0.24);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
  border-color: var(--border);
}

input,
textarea {
  width: 100%;
  padding: 13px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.045);
  color: #fff;
  font: inherit;
  outline: none;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    background 0.2s ease;
}

input::placeholder,
textarea::placeholder {
  color: rgba(148, 163, 184, 0.75);
}

input:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.12);
  background: rgba(255, 255, 255, 0.06);
}

textarea {
  min-height: 126px;
  resize: vertical;
}