* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Montserrat, Arial, sans-serif;
  background: #080812;
  color: #ffffff;
}

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

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(8, 8, 18, 0.92);
  backdrop-filter: blur(10px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 8%;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: #00eaff;
  text-shadow: 0 0 12px #00eaff;
}

.nav {
  display: flex;
  gap: 24px;
  font-size: 14px;
}

.nav a {
  opacity: 0.8;
}

.nav a:hover {
  opacity: 1;
  color: #ff4fd8;
}

.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding: 80px 8%;
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 79, 216, 0.25), transparent 30%),
    radial-gradient(circle at 80% 20%, rgba(0, 234, 255, 0.22), transparent 35%),
    #080812;
}

.hero-content {
  max-width: 760px;
}

.label {
  color: #00eaff;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

h1 {
  font-size: 54px;
  line-height: 1.08;
  margin: 16px 0;
}

h2 {
  font-size: 36px;
  margin-bottom: 12px;
}

h3 {
  margin-top: 0;
}

.hero-text,
.section-text {
  font-size: 18px;
  line-height: 1.6;
  color: #cfcfe6;
  max-width: 700px;
}

.button {
  display: inline-block;
  margin-top: 22px;
  padding: 16px 26px;
  border-radius: 14px;
  background: linear-gradient(135deg, #ff4fd8, #00eaff);
  color: #080812;
  font-weight: 700;
  border: none;
  cursor: pointer;
  font-size: 16px;
}

.button:hover {
  transform: translateY(-1px);
}

.full {
  width: 100%;
}

.features,
.constructor,
.steps,
.faq,
.contacts {
  padding: 80px 8%;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 32px;
}

.card,
.faq-item,
.constructor-box {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 24px;
  padding: 26px;
}

.card p,
.faq-item p {
  color: #cfcfe6;
  line-height: 1.6;
}

.constructor-box {
  margin-top: 32px;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 28px;
}

.settings {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: #e8e8ff;
  font-weight: 600;
}

input,
select {
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: #111122;
  color: #ffffff;
  font-size: 16px;
}

.preview {
  min-height: 360px;
}

.wall {
  height: 100%;
  min-height: 360px;
  border-radius: 22px;
  background:
    linear-gradient(135deg, rgba(255,255,255,0.06), rgba(255,255,255,0.01)),
    #1a1a22;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px;
  overflow: hidden;
}

.neon-text {
  font-family: Pacifico, cursive;
  font-size: 64px;
  color: #ff4fd8;
  text-align: center;
  text-shadow:
    0 0 5px currentColor,
    0 0 12px currentColor,
    0 0 24px currentColor,
    0 0 42px currentColor;
}

.contacts {
  text-align: center;
}

.footer {
  padding: 30px 8%;
  color: #8888a8;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

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

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
  }

  .cards,
  .constructor-box {
    grid-template-columns: 1fr;
  }

  .features,
  .constructor,
  .steps,
  .faq,
  .contacts {
    padding: 56px 6%;
  }

  .header {
    padding: 16px 6%;
  }

  .neon-text {
    font-size: 48px;
  }
}