/* Diagnostic Form Page Styles */

.diag-page {
  min-height: calc(100vh - 65px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 24px;
}

.diag-container {
  width: 100%;
  max-width: 640px;
}

.diag-header {
  text-align: center;
  margin-bottom: 56px;
}

.diag-badge {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(245,158,11,0.2);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.diag-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--text);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.diag-title em {
  font-style: italic;
  color: var(--accent);
}

.diag-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Form Steps */
.step {
  display: none;
}
.step.active {
  display: block;
}

.step-label {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.question-text {
  font-family: var(--font-head);
  font-size: 1.6rem;
  color: var(--text);
  margin-bottom: 32px;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* Text Input */
.diag-input {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
  display: block;
  margin-bottom: 20px;
}
.diag-input:focus {
  border-color: var(--accent);
}
.diag-input::placeholder {
  color: var(--text-muted);
}

/* Option Grid */
.option-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 24px;
}

.option-card {
  position: relative;
  cursor: pointer;
}

.option-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.option-card .option-label {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
  text-align: center;
  transition: border-color 0.2s, background 0.2s;
}

.option-card:hover .option-label {
  border-color: rgba(245,158,11,0.3);
}

.option-card input[type="radio"]:checked + .option-label {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}

/* Buttons */
.diag-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #0f1117;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
  width: 100%;
  justify-content: center;
}
.diag-btn:hover { opacity: 0.88; }
.diag-btn:active { opacity: 0.7; }

.diag-btn-primary {
  background: var(--accent);
  font-size: 1.05rem;
  padding: 18px 32px;
}

/* Loading State */
.loading-state {
  text-align: center;
  padding: 60px 0;
}
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 20px;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
.loading-state p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

@media (max-width: 600px) {
  .option-grid { grid-template-columns: 1fr; }
  .diag-page { padding: 40px 16px; }
}