:root {
  --bg1: #0b1220;
  --bg2: #102034;
  --glass: rgba(255, 255, 255, 0.14);
  --glass-strong: rgba(255, 255, 255, 0.2);
  --stroke: rgba(255, 255, 255, 0.28);
  --text: #f6f9ff;
  --muted: #d5def0;
  --accent: #1fd3b6;
  --accent-2: #2e90ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Be Vietnam Pro", "Noto Sans SC", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 18%, rgba(46, 144, 255, 0.28) 0%, transparent 45%),
    radial-gradient(circle at 82% 18%, rgba(31, 211, 182, 0.22) 0%, transparent 40%),
    linear-gradient(125deg, var(--bg1), var(--bg2));
  padding: 24px;
  overflow-x: hidden;
}

.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(48px);
  pointer-events: none;
  z-index: 0;
}

.orb-1 {
  width: 320px;
  height: 320px;
  background: rgba(46, 144, 255, 0.24);
  top: -120px;
  right: -80px;
}

.orb-2 {
  width: 300px;
  height: 300px;
  background: rgba(31, 211, 182, 0.2);
  bottom: -90px;
  left: -70px;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
  z-index: 0;
}

.topbar,
.hero,
.feature-card {
  position: relative;
  z-index: 1;
}

.glass {
  background: var(--glass);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-radius: 20px;
  box-shadow: 0 12px 44px rgba(4, 10, 20, 0.28);
}

.topbar {
  max-width: 1200px;
  margin: 0 auto 20px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  row-gap: 10px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.brand-icon {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  box-shadow: 0 0 18px rgba(31, 211, 182, 0.35);
}

.switch-row {
  display: flex;
  gap: 8px;
}

.chip {
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 7px 12px;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chip:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.16);
}

.chip.active {
  background: var(--glass-strong);
  border-color: rgba(255, 255, 255, 0.7);
}

.layout {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

.hero {
  padding: 34px;
}

.pill {
  display: inline-flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 13px;
  margin: 0 0 14px;
}

.top-highlight {
  margin: 0 0 10px;
  font-size: 0.98rem;
  font-weight: 700;
  color: #eafff8;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  line-height: 1.12;
}

.hero-sub {
  margin: 14px 0 0;
  font-size: 1.02rem;
  color: var(--muted);
  max-width: 720px;
}

.price-wrap {
  margin-top: 26px;
}

.price-line {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.price {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1;
}

.price-unit {
  font-size: 1rem;
  color: var(--muted);
}

.price-note {
  margin-top: 8px;
  font-size: 0.92rem;
  color: #d1f7f0;
}

.limit-note {
  margin-top: 10px;
  margin-bottom: 0;
  font-size: 0.9rem;
  color: #ffffff;
  font-weight: 600;
}

.btn-primary,
.btn-secondary {
  border: 0;
  border-radius: 14px;
  padding: 12px 20px;
  font-weight: 700;
  cursor: pointer;
}

.btn-primary {
  margin-top: 18px;
  color: #04212c;
  background: linear-gradient(135deg, #48e7ce, #5ea8ff);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.28);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.feature-card {
  padding: 26px;
}

.feature-card h2 {
  margin: 0 0 14px;
  font-size: 1.28rem;
}

.feature-card ul,
.feature-card ol {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.75;
}

.order-form {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.order-form input {
  flex: 1;
  min-width: 220px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  padding: 12px;
  outline: none;
}

.order-form input::placeholder {
  color: rgba(255, 255, 255, 0.7);
}

.order-msg {
  min-height: 22px;
  margin: 12px 0 0;
  color: #e9fff9;
}

.footer {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 22px auto 0;
  color: var(--muted);
  display: flex;
  justify-content: flex-end;
  font-size: 0.92rem;
}

@media (max-width: 860px) {
  body {
    padding: 14px;
  }

  .topbar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 8px;
    row-gap: 8px;
    padding: 10px;
  }

  .brand {
    grid-column: 1 / -1;
    justify-content: center;
    font-size: 0.92rem;
  }

  .brand-icon {
    width: 14px;
    height: 14px;
    border-radius: 4px;
  }

  .switch-row {
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .chip {
    padding: 6px 10px;
    font-size: 12px;
  }

  .hero,
  .feature-card {
    padding: 20px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .topbar {
    gap: 12px;
  }
}