:root {
  --bg-main: #02070c;
  --bg-dark: #030a10;
  --card-bg: rgba(6, 11, 17, 0.96);
  --cyan: #00eaff;
  --cyan-soft: rgba(0, 234, 255, 0.35);
  --cyan-line: rgba(0, 234, 255, 0.22);
  --text: #f4f8fb;
  --muted: rgba(255, 255, 255, 0.62);
  --line: rgba(255, 255, 255, 0.08);
  --button-off-top: rgba(58, 61, 68, 0.95);
  --button-off-bottom: rgba(34, 37, 43, 0.98);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 15%, rgba(0, 234, 255, 0.08), transparent 28%),
    linear-gradient(180deg, #01050a 0%, #03080d 50%, #01050a 100%);
}

body {
  position: relative;
  overflow-x: hidden;
}

.background {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.background-side {
  position: absolute;
  top: 0;
  width: 25vw;
  height: 100%;
  opacity: 0.95;
}

.background-side.left {
  left: 0;
  background:
    radial-gradient(circle at 28% 15%, rgba(0, 234, 255, 0.95), transparent 2.2%),
    radial-gradient(circle at 36% 30%, rgba(0, 234, 255, 0.14), transparent 20%),
    linear-gradient(135deg, rgba(0, 0, 0, 0.95) 34%, transparent 34%),
    linear-gradient(115deg, rgba(10, 30, 42, 0.72) 49%, transparent 49%);
}

.background-side.right {
  right: 0;
  background:
    radial-gradient(circle at 72% 15%, rgba(0, 234, 255, 0.95), transparent 2.2%),
    radial-gradient(circle at 64% 30%, rgba(0, 234, 255, 0.14), transparent 20%),
    linear-gradient(225deg, rgba(0, 0, 0, 0.95) 34%, transparent 34%),
    linear-gradient(245deg, rgba(10, 30, 42, 0.72) 49%, transparent 49%);
}

.background-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 9% 7%, rgba(0, 234, 255, 0.85) 0 2px, transparent 4px),
    radial-gradient(circle at 88% 8%, rgba(0, 234, 255, 0.85) 0 2px, transparent 4px),
    radial-gradient(circle at 6% 27%, rgba(0, 234, 255, 0.55) 0 1.5px, transparent 4px),
    radial-gradient(circle at 91% 30%, rgba(0, 234, 255, 0.55) 0 1.5px, transparent 4px);
  opacity: 0.9;
}

.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}

.card {
  width: min(820px, 100%);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(5, 10, 15, 0.98), rgba(4, 8, 13, 0.98));
  border: 1px solid rgba(0, 234, 255, 0.18);
  box-shadow:
    0 0 0 1px rgba(0, 234, 255, 0.04) inset,
    0 0 24px rgba(0, 234, 255, 0.12),
    0 0 90px rgba(0, 0, 0, 0.6);
  overflow: hidden;
  position: relative;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top center, rgba(0, 234, 255, 0.05), transparent 30%);
  pointer-events: none;
}

.card-inner {
  padding: 40px 52px 26px;
}

.hero {
  text-align: center;
  margin-bottom: 26px;
}

.hero h1 {
  margin: 0;
  color: var(--cyan);
  font-size: clamp(3rem, 7vw, 4.2rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.05em;
  text-shadow:
    0 0 14px rgba(0, 234, 255, 0.34),
    0 0 28px rgba(0, 234, 255, 0.14);
}

.subtitle {
  margin: 18px 0 14px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-transform: uppercase;
}

.underline {
  width: 72px;
  height: 3px;
  margin: 0 auto;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 16px rgba(0, 234, 255, 0.45);
}

.rules-section {
  margin-top: 10px;
}

.rules-heading {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
  margin-bottom: 12px;
}

.rules-heading h2 {
  margin: 0;
  color: var(--cyan);
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.3em;
}

.rules-heading .line {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0, 234, 255, 0.4), transparent);
}

.rules-list {
  margin-bottom: 26px;
}

.rule-item {
  display: grid;
  grid-template-columns: 56px 1fr;
  align-items: center;
  min-height: 62px;
  border-top: 1px solid var(--line);
}

.rule-item:first-child {
  border-top: none;
}

.icon-text {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cyan);
  font-size: 1.2rem;
  text-shadow: 0 0 10px rgba(0, 234, 255, 0.2);
}

.rule-item p {
  margin: 0;
  font-size: 0.98rem;
  color: rgba(255, 255, 255, 0.94);
}

.agree-box {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 58px;
  padding: 0 18px;
  border-radius: 12px;
  border: 1.5px solid rgba(0, 234, 255, 0.82);
  background: rgba(4, 8, 13, 0.74);
  box-shadow:
    0 0 0 1px rgba(0, 234, 255, 0.04) inset,
    0 0 12px rgba(0, 234, 255, 0.08);
  cursor: pointer;
}

.agree-box input {
  display: none;
}

.custom-check {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  border: 2px solid var(--cyan);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.custom-check::after {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 3px;
  background: var(--cyan);
  transform: scale(0);
  transition: transform 0.18s ease;
  box-shadow: 0 0 12px rgba(0, 234, 255, 0.45);
}

.agree-box input:checked + .custom-check::after {
  transform: scale(1);
}

.agree-text {
  font-size: 0.96rem;
  color: var(--text);
}

.apply-button {
  width: 100%;
  height: 64px;
  margin-top: 24px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(180deg, var(--button-off-top), var(--button-off-bottom));
  color: rgba(255, 255, 255, 0.36);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.28em;
  cursor: not-allowed;
  transition: all 0.25s ease;
  display: block;
  text-transform: uppercase;
}

.apply-button.enabled {
  color: #021217;
  background: linear-gradient(180deg, #00eaff, #11d2ea);
  border-color: rgba(0, 234, 255, 0.95);
  box-shadow:
    0 0 16px rgba(0, 234, 255, 0.22),
    0 0 34px rgba(0, 234, 255, 0.16);
  cursor: pointer;
}

.status-text {
  margin: 12px 0 4px;
  text-align: center;
  font-size: 0.88rem;
  color: var(--muted);
}

.footer {
  display: flex;
  justify-content: center;
  padding: 16px 20px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.footer-flame {
  color: var(--cyan);
  text-shadow: 0 0 14px rgba(0, 234, 255, 0.4);
  font-size: 0.95rem;
}

@media (max-width: 700px) {
  .card-inner {
    padding: 28px 18px 20px;
  }

  .subtitle {
    letter-spacing: 0.16em;
    line-height: 1.5;
  }

  .rule-item {
    grid-template-columns: 46px 1fr;
    min-height: 56px;
  }

  .agree-box {
    min-height: 54px;
    padding: 0 14px;
    gap: 12px;
  }

  .apply-button {
    height: 58px;
    font-size: 0.86rem;
    letter-spacing: 0.2em;
  }

  .footer-mark {
    text-align: center;
    font-size: 0.74rem;
    letter-spacing: 0.18em;
  }
}