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

body {
  font-family: 'Hiragino Kaku Gothic ProN', 'Yu Gothic', sans-serif;
  background: #1c2333;
  color: #1c1c1e;
}

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

.card {
  width: min(480px, calc(100vw - 32px));
  box-sizing: border-box;
  background: #ffffff;
  border: 1px solid #e2e4e9;
  border-radius: 12px;
  padding: 40px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.heading {
  text-align: center;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 2.5px;
  color: #6b7280;
}

.title {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #1c1c1e;
  white-space: nowrap;
}

.subtitle {
  margin: 8px 0 0;
  font-size: 13px;
  font-weight: 600;
  color: #4b5563;
}

.field {
  margin-bottom: 14px;
}

.field label {
  display: block;
  margin-bottom: 6px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #6b7280;
}

.field input {
  width: 100%;
  box-sizing: border-box;
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 7px;
  font-size: 13px;
  color: #1c1c1e;
  outline: none;
  background: #ffffff;
}

.field input:focus {
  border-color: #374151;
  box-shadow: 0 0 0 2px rgba(55, 65, 81, 0.08);
}

.submit-button {
  width: 100%;
  margin-top: 6px;
  padding: 12px 0;
  border: none;
  border-radius: 7px;
  background: #1c2333;
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background-color 0.2s ease, opacity 0.2s ease;
}

.submit-button:hover {
  background: #2d3748;
}

.submit-button:disabled {
  opacity: 0.6;
  cursor: default;
}

.message {
  min-height: 16px;
  margin: 0 0 12px;
  font-size: 11px;
  text-align: center;
}

.message-info {
  color: #1d4ed8;
}

.message-error {
  color: #991b1b;
}

.notice {
  margin: 0;
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.8;
  text-align: left;
}

.notice-closed {
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
}