:root {
  --blue: #1b47c1;
  --blue-deep: #153aa3;
  --ink: #1c2434;
  --copy: #2f5fbf;
  --line: #c9d6f5;
  --page: #ffffff;
  --max: 430px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: Inter, system-ui, -apple-system, Segoe UI, sans-serif;
  background: #f3f6fb;
  color: var(--ink);
}

.claim-page {
  width: min(100%, var(--max));
  min-height: 100dvh;
  margin: 0 auto;
  background: var(--page);
  padding: 14px 16px 28px;
}

.claim-bar {
  display: grid;
  grid-template-columns: 36px 1fr auto 36px;
  align-items: center;
  gap: 6px;
  min-height: 86px;
  padding: 10px 10px 10px 8px;
  border-radius: 16px;
  background: linear-gradient(180deg, #2454d6 0%, var(--blue) 100%);
  color: #fff;
}

.bar-btn {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: #fff;
  background: transparent;
  border: 0;
  text-decoration: none;
  cursor: pointer;
}

.bar-btn svg {
  width: 22px;
  height: 22px;
}

.claim-bar h1 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.bar-art {
  display: flex;
  justify-content: flex-end;
}

.drop-art {
  width: 118px;
  height: 70px;
}

.claim-main {
  padding: 28px 6px 0;
}

.reward-card {
  text-align: center;
  padding: 8px 4px 10px;
}

.reward-kicker {
  font-size: 14px;
  font-weight: 600;
  color: #6b7690;
}

.reward-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.reward-amount span {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
}

.reward-amount em {
  font-style: normal;
  font-size: 20px;
  font-weight: 800;
  color: var(--blue);
}

.reward-note {
  margin: 10px 0 18px;
  font-size: 14px;
  color: #7a8498;
}

.claim-field {
  display: block;
  width: 100%;
  min-height: 140px;
  margin-top: 18px;
  margin-bottom: 16px;
  padding: 16px;
  border: 1.5px solid var(--blue);
  border-radius: 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  line-height: 1.5;
  resize: vertical;
}

.claim-field::placeholder {
  color: #9aa3b5;
  font-style: italic;
}

.claim-field:focus {
  outline: 2px solid rgba(27, 71, 193, 0.25);
  outline-offset: 1px;
}

.claim-btn {
  width: 100%;
  height: 56px;
  border: 0;
  border-radius: 12px;
  background: var(--blue);
  color: #fff;
  font: inherit;
  font-size: 18px;
  font-weight: 700;
  cursor: pointer;
}

.claim-btn:active {
  background: var(--blue-deep);
}

.claim-btn.is-done {
  background: #1a9d5c;
}

.claim-field.is-invalid {
  border-color: #e4252c;
}

.claim-error {
  margin-top: 10px;
  font-size: 13px;
  font-weight: 600;
  color: #e4252c;
  text-align: left;
}

.claim-modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(10, 18, 40, 0.45);
}

.claim-modal[hidden] {
  display: none;
}

.claim-modal-card {
  width: min(100%, 340px);
  padding: 22px 20px 18px;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(16, 30, 70, 0.22);
}

.claim-modal-card h3 {
  font-size: 20px;
  font-weight: 800;
}

.claim-modal-card p {
  margin: 10px 0 18px;
  font-size: 14px;
  line-height: 1.5;
  color: #4a5568;
}

.claim-modal-ok {
  width: 100%;
  height: 46px;
  border: 0;
  border-radius: 10px;
  background: var(--blue);
  color: #fff;
  font: inherit;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}

.claim-info {
  margin-top: 36px;
  padding: 0 4px;
}

.claim-info h2 {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.claim-info p {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.55;
  color: var(--copy);
}

@media (min-width: 480px) {
  body {
    background: #e8edf6;
  }

  .claim-page {
    box-shadow: 0 18px 50px rgba(20, 40, 90, 0.1);
  }
}