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

:root {
  --blue: #0B3D91;
  --blue-light: #1565C0;
  --blue-bg: #F5F8FC;
  --white: #FFFFFF;
  --text: #1A1A2E;
  --text-light: #4A4A68;
  --border: #C5D1E0;
  --error: #D32F2F;
  --success: #2E7D32;
  --radius: 8px;
}

body {
  font-family: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  background: var(--blue-bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.site-header {
  background: var(--blue);
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}



.logo-text {
  color: var(--white);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 2px;
}

.main-center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  width: 100%;
  max-width: 460px;
}

.card h2 {
  font-size: 22px;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: 4px;
  text-align: center;
}

.card-sub {
  font-size: 14px;
  color: var(--text-light);
  margin-bottom: 24px;
  text-align: center;
}

.field {
  display: block;
  margin-bottom: 18px;
}

.field > span {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="number"] {
  width: 100%;
  padding: 10px 12px;
  font-size: 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}

.field input:focus {
  border-color: var(--blue);
}

.score-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.score-row input {
  flex: 1;
}

.unit {
  font-weight: 700;
  color: var(--blue);
  font-size: 16px;
  min-width: 28px;
}

.field input[type="range"] {
  width: 100%;
  margin-top: 6px;
  accent-color: var(--blue);
}

.hint {
  display: block;
  font-size: 12px;
  color: var(--text-light);
  margin-top: 4px;
}

.btn-primary {
  display: block;
  width: 100%;
  padding: 12px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  background: var(--blue);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s;
  margin-top: 8px;
}

.btn-primary:hover {
  background: var(--blue-light);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-message {
  text-align: center;
  margin-top: 12px;
  font-size: 14px;
  font-weight: 600;
  min-height: 20px;
}

.form-message.error {
  color: var(--error);
}

.form-message.success {
  color: var(--success);
}

.site-footer {
  background: var(--blue);
  color: var(--white);
  padding: 16px 24px;
  text-align: center;
  font-size: 13px;
}

@media (max-width: 768px) {
  .main-center {
    padding: 24px 12px;
  }

  .card {
    padding: 24px;
  }

  .site-header {
    padding: 0 16px;
  }
}