:root {
  color-scheme: dark;
  color: #f2f5f9;
  background: #08131d;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  background: radial-gradient(circle at top, rgba(32, 121, 183, 0.18), transparent 35%),
    linear-gradient(180deg, #061017 0%, #07111a 40%, #0f1f2f 100%);
  color: #e8eef4;
}

.page-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.hero-panel {
  display: grid;
  gap: 28px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  background: rgba(10, 23, 35, 0.9);
}

.brand-info {
  display: flex;
  align-items: center;
  gap: 18px;
}

.brand-logo {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-size: 28px;
  font-weight: 800;
  color: #0a97ff;
  background: rgba(10, 151, 255, 0.12);
}

.brand-label {
  font-size: 18px;
  margin: 0;
  font-weight: 700;
}

.brand-tag {
  margin: 4px 0 0;
  font-size: 13px;
  color: #a7b8c9;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(2.8rem, 4vw, 4.8rem);
  line-height: 0.95;
}

.hero-text {
  margin: 18px 0 0;
  max-width: 700px;
  line-height: 1.75;
  color: #c5d2df;
}

.countdown-card {
  padding: 26px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.countdown-label {
  margin: 0 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: #7aa8ce;
  font-size: 0.85rem;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.countdown-grid div {
  background: rgba(8, 19, 30, 0.98);
  padding: 18px 14px;
  border-radius: 18px;
  text-align: center;
  min-width: 90px;
}

.count-value {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
}

.count-label {
  display: block;
  margin-top: 8px;
  font-size: 0.9rem;
  color: #9ab2c8;
}

.info-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 34px;
}

.info-card {
  padding: 28px 24px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(12, 24, 39, 0.9);
}

.info-card h2 {
  margin-top: 0;
  font-size: 1.3rem;
}

.info-card p {
  margin: 16px 0 0;
  line-height: 1.7;
  color: #d3deea;
}

.contact-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.signup-form {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}

.signup-form input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #eef5ff;
}

.signup-form button {
  border: none;
  cursor: pointer;
  padding: 14px 18px;
  border-radius: 14px;
  font-weight: 700;
  color: #08131d;
  background: linear-gradient(135deg, #0f99ff, #1bd6c6);
}

.page-footer {
  margin-top: 34px;
  padding: 18px 0 0;
  text-align: center;
  color: #7b8f9f;
  font-size: 0.95rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 820px) {
  .hero-panel,
  .info-card,
  .countdown-card {
    padding: 22px;
  }

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

@media (max-width: 560px) {
  .page-shell {
    padding: 20px 16px 32px;
  }

  .countdown-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}