:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: #e8edf4;
  background: #0d1320;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, #1b2742 0%, #0d1320 55%);
}

.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px;
}

.card {
  width: min(560px, 100%);
  background: rgba(20, 30, 50, 0.9);
  border: 1px solid rgba(148, 178, 255, 0.25);
  border-radius: 18px;
  padding: 16px;
  backdrop-filter: blur(6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

h1 {
  margin: 0;
  font-size: 1.3rem;
}

.lead,
.hint {
  color: #a8b6cf;
  line-height: 1.6;
}

.lead {
  margin: 6px 0 0;
  font-size: 0.9rem;
}

.field {
  display: grid;
  gap: 6px;
  margin-bottom: 10px;
}

label {
  font-size: 0.9rem;
  color: #c8d3e5;
  font-weight: 700;
}

input {
  width: 100%;
  border: 1px solid #324869;
  border-radius: 10px;
  padding: 12px;
  font-size: 1rem;
  color: #f4f8ff;
  background: #132035;
}

input:focus {
  outline: 2px solid #5b96ff;
  border-color: transparent;
}

.hint {
  margin: 0;
  font-size: 0.78rem;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.chip,
.ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(122, 156, 216, 0.4);
  border-radius: 10px;
  background: rgba(21, 37, 61, 0.75);
  color: #d6e1f3;
  padding: 9px 12px;
  font-weight: 700;
}

.chip {
  border-radius: 999px;
  font-size: 0.84rem;
}

.link-button {
  text-decoration: none;
  white-space: nowrap;
}

.tap-area {
  width: 100%;
  min-height: 240px;
  display: grid;
  place-items: center;
  gap: 6px;
  border: 1px solid rgba(245, 197, 66, 0.38);
  border-radius: 18px;
  background:
    radial-gradient(circle at center, rgba(245, 197, 66, 0.18), transparent 58%),
    linear-gradient(135deg, #2979ff, #5e35ff);
  color: #fff;
  box-shadow: 0 18px 40px rgba(41, 121, 255, 0.2);
}

.tap-area strong {
  font-size: clamp(3rem, 18vw, 7rem);
  line-height: 0.95;
}

.tap-area span {
  font-weight: 800;
}

#tapHint {
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
}

.tap-area.is-hit {
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.36), transparent 55%),
    conic-gradient(
      from 0deg,
      #ff3b7f,
      #ffb938,
      #fff45c,
      #40f279,
      #35d8ff,
      #6d5bff,
      #ff3bde,
      #ff3b7f
    );
  color: #fff;
  animation: rainbow-button 0.75s linear infinite, hit-pulse 0.35s ease-in-out infinite alternate;
  box-shadow:
    0 0 24px rgba(245, 197, 66, 0.75),
    0 0 52px rgba(91, 150, 255, 0.48);
}

.tap-area:disabled {
  cursor: wait;
}

@keyframes rainbow-button {
  to {
    filter: hue-rotate(360deg);
  }
}

@keyframes hit-pulse {
  to {
    transform: scale(1.015);
  }
}

.actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
}

.disclaimer {
  margin: 10px 0 0;
  color: #6f809d;
  font-size: 0.68rem;
  line-height: 1.5;
  text-align: center;
}

.policy-link {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 4px 0 0;
  text-align: center;
}

.policy-link a,
.policy-link a:visited {
  color: #a8b6cf;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.6;
  text-underline-offset: 2px;
}

button {
  cursor: pointer;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid #f5c542;
  outline-offset: 4px;
}

@media (max-width: 420px) {
  .card-header {
    display: grid;
  }

  .link-button {
    width: 100%;
  }

  .tap-area {
    min-height: 220px;
  }
}