/* ==========================================================================
   RE:PERSONAL -- Courses Library Page
   Editorial column aesthetic. NO EMOJIS.
   Clean borders, ruled separators, typography-driven.
   ========================================================================== */

/* -- Courses Hero -------------------------------------------------------- */

.courses-hero {
  padding-top: calc(var(--nav-h) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  text-align: center;
  border-bottom: 1px solid var(--border-light);
}

.courses-label {
  display: inline-block;
  font-family: var(--font-ui);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.courses-title {
  font-family: 'Pretendard Variable', 'Pretendard', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: var(--space-sm);
}

.courses-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.75;
}

/* -- Courses Content ----------------------------------------------------- */

.courses-content {
  padding-bottom: var(--space-3xl);
}

/* -- Filter Section ------------------------------------------------------ */

.filter-section {
  margin-bottom: var(--space-md);
  padding-top: var(--space-lg);
}

.filter-group {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) 0;
  flex-wrap: wrap;
}

.filter-label {
  font-family: var(--font-ui);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
  min-width: 52px;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--surface);
  cursor: pointer;
  transition: all var(--ease);
  white-space: nowrap;
}

.filter-chip:hover {
  border-color: var(--text-muted);
  color: var(--text);
}

.filter-chip.active {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.chip-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.filter-chip.active .chip-dot {
  background: white !important;
}

/* -- Toolbar ------------------------------------------------------------- */

.courses-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--border-light);
  margin-bottom: var(--space-md);
}

.toolbar-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
  max-width: 360px;
}

.toolbar-search svg {
  color: var(--text-muted);
  flex-shrink: 0;
}

.toolbar-search input {
  border: none;
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text);
  outline: none;
  width: 100%;
}

.toolbar-search input::placeholder {
  color: var(--text-muted);
}

.toolbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.toolbar-count {
  font-family: var(--font-ui);
  font-size: 0.75rem;
  color: var(--text-muted);
}

.toolbar-view {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.toolbar-view button {
  background: var(--surface);
  border: none;
  padding: 0.35rem 0.45rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  color: var(--text-muted);
  transition: all var(--ease);
}

.toolbar-view button.active {
  background: var(--bg-warm);
  color: var(--text);
}

.toolbar-view button + button {
  border-left: 1px solid var(--border);
}

/* -- Category Header ----------------------------------------------------- */

.cat-header {
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: var(--space-lg) 0 var(--space-sm);
  border-bottom: 1px solid var(--border-light);
}

/* -- List Item ----------------------------------------------------------- */

.course-list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border-light);
  cursor: pointer;
  transition: background var(--ease);
}

.course-list-item:hover {
  background: rgba(0, 0, 0, 0.01);
}

.course-num-wrap {
  min-width: 48px;
  text-align: center;
  flex-shrink: 0;
}

.course-num {
  font-family: 'Outfit', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}

.course-kw {
  font-family: var(--font-ui);
  font-size: 0.5rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.course-info {
  flex: 1;
  min-width: 0;
}

.course-name {
  font-weight: 700;
  font-size: 0.95rem;
  line-height: 1.4;
  margin-bottom: 0.2rem;
  color: var(--text);
}

.course-desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 300;
}

.course-meta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-sm);
}

.course-type-dots {
  display: flex;
  gap: 3px;
  flex-shrink: 0;
}

.course-type-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.course-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.course-arrow {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  align-self: center;
  transition: all var(--ease);
  color: var(--text-muted);
}

.course-list-item:hover .course-arrow {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
}

/* -- Badges -------------------------------------------------------------- */

.badge-rec {
  display: inline-flex;
  font-family: var(--font-ui);
  font-size: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.12rem 0.4rem;
  border-radius: var(--radius-full);
  background: var(--accent);
  color: white;
  margin-left: 0.45rem;
  vertical-align: middle;
}

.badge-free {
  display: inline-flex;
  font-family: var(--font-ui);
  font-size: 0.55rem;
  font-weight: 600;
  padding: 0.12rem 0.35rem;
  border-radius: 4px;
  background: var(--type-narrative);
  color: white;
  margin-left: 0.35rem;
  vertical-align: middle;
}

/* -- Grid ---------------------------------------------------------------- */

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
  padding: var(--space-md) 0;
}

.course-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  cursor: pointer;
  transition: all var(--ease);
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.course-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.course-card-num {
  font-family: 'Outfit', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}

.course-card-cat {
  font-family: var(--font-ui);
  font-size: 0.55rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border-radius: 4px;
}

.course-card-kw {
  font-family: var(--font-ui);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.course-card-name {
  font-weight: 700;
  font-size: 0.92rem;
  line-height: 1.4;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.course-card-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 300;
  line-height: 1.6;
  flex: 1;
}

.course-card-bottom {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--border-light);
}

.course-card-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

/* -- Step Progress Component (replaces old list) ------------------------- */

.cat-section {
  margin-bottom: var(--space-2xl);
}

.cat-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) 0 var(--space-xs);
}

.cat-title {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.cat-progress-info {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.cat-progress-text { font-weight: 500; }

.cat-progress-bar {
  width: 100%;
  height: 2px;
  background: var(--border-light);
  border-radius: 1px;
  margin-bottom: var(--space-md);
  overflow: hidden;
}

.cat-progress-fill {
  height: 100%;
  background: #18181B;
  border-radius: 1px;
  transition: width 0.4s ease;
}

.steps-list {
  display: flex;
  flex-direction: column;
}

.step-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: -1px;
}

.step-card:first-child { border-radius: 12px 12px 0 0; }
.step-card:last-child { border-radius: 0 0 12px 12px; margin-bottom: 0; }
.step-card:only-child { border-radius: 12px; }

.step-card:hover { background: #FAFAFA; }
.step-card--active { background: #FAFAFA; }

.step-card--done {
  opacity: 0.55;
}

.step-card--done .step-title {
  text-decoration: line-through;
  text-decoration-color: var(--text-muted);
}

.step-indicator {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.step-ring, .step-check { display: block; }

.step-num {
  font-family: var(--font-ui);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-content { flex: 1; min-width: 0; }

.step-top {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.2rem;
  flex-wrap: wrap;
}

.step-title {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.4;
}

.step-badge {
  font-family: var(--font-ui);
  font-size: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  background: #18181B;
  color: white;
}

.step-time {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-ui);
  font-size: 0.68rem;
  color: var(--text-muted);
  white-space: nowrap;
  flex-shrink: 0;
}

.step-time svg { flex-shrink: 0; }

.step-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 400;
}

.step-arrow {
  flex-shrink: 0;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  align-self: center;
  transition: color 0.2s;
}

.step-card:hover .step-arrow { color: var(--text); }

@media (max-width: 640px) {
  .step-card { padding: 0.9rem 1rem; gap: 0.75rem; }
  .step-top { flex-direction: column; gap: 0.2rem; align-items: flex-start; }
}

/* -- CTA Section --------------------------------------------------------- */

.cta-banner-inner {
  background: var(--bg-dark);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-xl);
}

.cta-banner-text h3 {
  font-weight: 700;
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--text-inverse);
  margin-bottom: var(--space-xs);
}

.cta-banner-text p {
  color: var(--text-inverse-muted);
  font-size: 0.875rem;
}

.cta-banner-actions {
  flex-shrink: 0;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 640px) {
  .filter-group {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-xs);
  }

  .toolbar-search {
    max-width: none;
  }

  .course-list-item {
    gap: var(--space-md);
  }

  .course-num {
    font-size: 1.2rem;
  }

  .course-num-wrap {
    min-width: 40px;
  }

  .cta-banner-inner {
    flex-direction: column;
    text-align: center;
    padding: var(--space-xl);
  }

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

@media (min-width: 641px) and (max-width: 767px) {
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .courses-hero {
    padding-top: calc(var(--nav-h) + var(--space-4xl));
    padding-bottom: var(--space-3xl);
  }
}

/* ==========================================================================
   Print
   ========================================================================== */

@media print {
  .nav,
  .footer,
  .filter-section,
  .courses-toolbar,
  .cta-banner-inner,
  .toolbar-view {
    display: none !important;
  }

  .courses-hero {
    padding-top: 0;
  }

  .course-list-item {
    page-break-inside: avoid;
  }

  .course-card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }

  body {
    background: #fff;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
  }
}