* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f7fb;
  color: #1f2937;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 16px;
}

.card {
  background: #ffffff;
  border-radius: 16px;
  padding: 28px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.eyebrow {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #6b7280;
}

h1 {
  margin: 0 0 12px;
  font-size: 32px;
  line-height: 1.2;
}

.intro {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.6;
  color: #4b5563;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
}

label {
  margin-bottom: 8px;
  font-weight: 700;
  font-size: 14px;
}

input[type="time"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  font-size: 16px;
  background: #fff;
  color: #111827;
}

.actions {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

button {
  border: none;
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  background: #2563eb;
  color: #fff;
}

button:hover {
  opacity: 0.95;
}

button.secondary {
  background: #e5e7eb;
  color: #111827;
}

.quick {
  margin-top: 20px;
}

.quick p {
  margin: 0 0 10px;
}

.quick button {
  margin-right: 10px;
  margin-top: 5px;
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid #dbeafe;
  background: #ffffff;
  color: #1f2937;
  cursor: pointer;
  font-weight: 600;
}

.quick button:hover {
  background: #eff6ff;
  color: #1f2937;
  opacity: 1;
}

.result {
  margin-top: 24px;
  padding: 18px;
  border-radius: 12px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
}

.result h3 {
  margin: 0 0 10px;
  font-size: 22px;
}

.result p {
  margin: 8px 0;
  line-height: 1.6;
}

.result .big-time {
  font-size: 28px;
  font-weight: 700;
}

.result .suggestion {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #dbeafe;
  font-weight: 700;
}

.result.warning {
  background: #fff7ed;
  border-color: #fdba74;
}

.hidden {
  display: none;
}

.recommendation {
  margin-top: 15px;
  padding: 15px;
  background: #ffffff;
  border: 1px solid #dbeafe;
  border-radius: 10px;
}

.info-box {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid #e5e7eb;
}

.info-box h2 {
  margin: 0 0 12px;
  font-size: 18px;
}

.info-box ul {
  margin: 0 0 12px 18px;
  padding: 0;
  color: #4b5563;
  line-height: 1.6;
}

.disclaimer {
  margin: 0;
  font-size: 14px;
  color: #6b7280;
}

@media (max-width: 640px) {
  .card {
    padding: 20px;
  }

  h1 {
    font-size: 26px;
  }

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

  .result .big-time {
    font-size: 24px;
  }
}