/* ==========================================================================
   Practice Mode Base Styles
   Foundation for all practice modes (HCS, LMCMA, LMCSA, SMW, ROP, SGD)
   ========================================================================== */

/* ── Container Layouts ── */
.pm-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  width: 100%;
}

/* Legacy mode wrappers retain their selectors while sharing these foundations. */
.hcs-container,
.rop-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
  width: 100%;
}

.pm-split-layout {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  align-items: stretch;
}

.hcs-split-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-md);
  align-items: stretch;
}

@media (min-width: 900px) {
  .pm-split-layout {
    flex-direction: row;
    align-items: flex-start;
  }
}

@media (max-width: 900px) {
  .hcs-split-layout {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

.pm-col-left {
  flex: 1 1 50%;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.pm-col-right {
  flex: 1 1 50%;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.hcs-audio-section,
.hcs-question-section,
.hcs-explanation-section,
.rop-workspace-card {
  border: none;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  padding: var(--space-md) 0;
  display: flex;
  flex-direction: column;
}

.hcs-progress-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  flex-grow: 1;
}

/* ── Clean UI Elements (No Box-in-Box) ── */
/* Use these classes instead of nested .card classes */
.pm-content-section {
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border-light, #e2e8f0);
}

.pm-content-section:last-child {
  border-bottom: none;
}

.pm-question-text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.pm-instruction-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

/* ── Standard Progress Bar ── */
.pm-progress-wrapper {
  background: var(--bg-surface);
  padding: var(--space-sm) 0;
  margin-bottom: var(--space-md);
}

.pm-progress-track {
  height: 6px;
  background: var(--border-light, #e2e8f0);
  border-radius: 4px;
  overflow: hidden;
}

.pm-progress-fill {
  height: 100%;
  background: var(--brand-primary);
  border-radius: 4px;
  transform-origin: left;
  transition: transform 0.3s ease-out;
}

/* ── Standard Button Reset ── */
.pm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition-base);
  cursor: pointer;
  border: none;
}

.pm-btn-primary {
  background: var(--brand-primary);
  color: #ffffff;
}

.pm-btn-primary:hover {
  background: #114b9c; /* darker shade */
}

.pm-btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-light, #e2e8f0);
}

.pm-btn-secondary:hover {
  background: #f1f5f9;
}