/* css/courses.css - Layout Assimétrico Interativo de Cursos (Sem Grid Cards) */

.courses-section {
  position: relative;
  overflow: hidden;
  background-color: var(--bg-primary);
}

.courses-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 5rem;
}

.courses-header h2 span {
  display: block;
  font-size: 1.1rem;
  color: var(--brand-mint);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

/* Split-screen layout style */
.courses-showcase {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 4rem;
  min-height: 550px;
  align-items: start;
}

/* Course Navigator (Left Column) */
.courses-nav-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  list-style: none;
}

.courses-nav-item {
  padding: 2rem;
  border-radius: var(--border-radius-lg);
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all var(--transition-spring);
  position: relative;
  overflow: hidden;
}

.courses-nav-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 0;
  background: var(--gradient-brand);
  transition: width var(--transition-normal);
  z-index: 1;
}

.courses-nav-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(85, 203, 150, 0.14), transparent 42%),
    radial-gradient(circle at 12% 50%, rgba(85, 203, 150, 0.18), transparent 34%);
  opacity: 0;
  transform: translateX(-18px);
  transition: opacity 0.35s ease, transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1;
  pointer-events: none;
}

.courses-nav-item > * {
  position: relative;
  z-index: 2;
}

.courses-nav-tag {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  transition: color var(--transition-normal);
}

.courses-nav-title {
  font-size: 1.6rem;
  font-weight: 700;
  transition: color var(--transition-normal), transform var(--transition-normal);
}

.courses-nav-focus {
  font-size: 0.9rem;
  color: var(--text-secondary);
  opacity: 0.7;
  transition: color var(--transition-normal);
}

/* Hover State */
.courses-nav-item:hover {
  transform: translateX(8px);
  border-color: rgba(85, 203, 150, 0.25);
  box-shadow: var(--shadow-md);
}

/* Active State */
.courses-nav-item.active {
  border-color: transparent;
  box-shadow: var(--shadow-lg);
  animation: courseFocusLock 0.45s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.courses-nav-item.active::before {
  width: 6px;
}

.courses-nav-item.active::after {
  opacity: 1;
  transform: translateX(0);
}

.courses-nav-item.active .courses-nav-title {
  color: var(--brand-mint);
  transform: translateX(4px);
}

.courses-nav-item.active .courses-nav-tag {
  color: var(--brand-mint);
}

.courses-nav-item.active .courses-nav-focus {
  color: var(--text-primary);
  opacity: 0.9;
}

/* Dynamic Content Display (Right Column) */
.courses-display {
  position: relative;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  height: 100%;
  min-height: 520px;
}

.course-pane {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  pointer-events: none;
  transform: scale(0.96) translateY(15px);
  transition: opacity var(--transition-normal) ease-out, transform var(--transition-normal) ease-out;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  z-index: 1;
}

.course-pane.active {
  opacity: 1;
  pointer-events: auto;
  transform: scale(1) translateY(0);
  z-index: 2;
}

/* Specific Course Pane Theming via local classes */
.course-pane.pane-informatic {
  --course-color: var(--theme-info);
  --course-glow: 0 0 25px rgba(var(--theme-info-rgb), 0.35);
}

.course-pane.pane-nursing {
  --course-color: var(--theme-enferm);
  --course-glow: 0 0 25px rgba(var(--theme-enferm-rgb), 0.35);
}

.course-pane.pane-admin {
  --course-color: var(--theme-admin);
  --course-glow: 0 0 25px rgba(var(--theme-admin-rgb), 0.35);
}

/* Glass card styling of pane */
.pane-card {
  padding: 2.75rem;
  height: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-top: 3px solid var(--course-color);
  box-shadow: var(--shadow-lg), var(--course-glow);
  border-radius: var(--border-radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.course-pane.active .pane-card {
  animation:
    coursePaneSwitch 0.64s cubic-bezier(0.16, 1, 0.3, 1) both,
    paneGlowPulse 4s ease-in-out 0.64s infinite alternate;
}

.course-pane.active .pane-badge,
.course-pane.active .pane-desc,
.course-pane.active .pane-keywords,
.course-pane.active .curriculum-map {
  animation: coursePaneContentIn 0.56s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.course-pane.active .pane-desc {
  animation-delay: 0.07s;
}

.course-pane.active .pane-keywords {
  animation-delay: 0.14s;
}

.course-pane.active .curriculum-map {
  animation-delay: 0.2s;
}

.course-pane.active .keyword-tag,
.course-pane.active .curriculum-step {
  animation: courseMicroPop 0.44s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.course-pane.active .keyword-tag:nth-child(2),
.course-pane.active .curriculum-step:nth-child(2) {
  animation-delay: 0.06s;
}

.course-pane.active .keyword-tag:nth-child(3),
.course-pane.active .curriculum-step:nth-child(3) {
  animation-delay: 0.12s;
}

.course-pane.active .keyword-tag:nth-child(4) {
  animation-delay: 0.18s;
}

@keyframes paneGlowPulse {
  0% { box-shadow: var(--shadow-lg), var(--course-glow); }
  100% { box-shadow: var(--shadow-lg), 0 0 35px rgba(var(--theme-info-rgb), 0.15); /* overridden by dynamic color variable */ }
}

@keyframes courseFocusLock {
  0% {
    transform: translateX(0) scale(0.985);
  }
  52% {
    transform: translateX(10px) scale(1.015);
  }
  100% {
    transform: translateX(4px) scale(1);
  }
}

@keyframes coursePaneSwitch {
  0% {
    opacity: 0;
    transform: translate3d(28px, 0, 0) scale(0.965);
    filter: blur(8px) saturate(0.85);
  }
  58% {
    opacity: 1;
    transform: translate3d(-3px, 0, 0) scale(1.006);
    filter: blur(0) saturate(1.05);
  }
  100% {
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    filter: blur(0) saturate(1);
  }
}

@keyframes coursePaneContentIn {
  from {
    opacity: 0;
    transform: translateY(12px);
    filter: blur(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
}

@keyframes courseMicroPop {
  0% {
    opacity: 0;
    transform: translateY(8px) scale(0.94);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.pane-badge {
  display: inline-flex;
  padding: 0.3rem 0.85rem;
  border-radius: var(--border-radius-full);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--font-headings);
  font-size: 0.8rem;
  font-weight: 600;
  width: max-content;
  color: var(--course-color);
  border-color: rgba(var(--theme-info-rgb), 0.2); /* dynamically maps */
}

.pane-desc {
  font-size: 1.1rem;
  color: var(--text-primary);
  line-height: 1.6;
}

/* Design keywords list */
.pane-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0.5rem 0;
}

.keyword-tag {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  padding: 0.45rem 1rem;
  border-radius: var(--border-radius-md);
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-family: var(--font-headings);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all var(--transition-fast);
}

.keyword-tag::before {
  content: '#';
  color: var(--course-color);
  font-weight: 700;
}

.keyword-tag:hover {
  border-color: var(--course-color);
  color: var(--text-primary);
  transform: translateY(-2px);
}

/* Curriculum Tree Map */
.curriculum-map {
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 2rem;
}

.curriculum-title {
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
}

.curriculum-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  position: relative;
}

.curriculum-step {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-glass);
  border-radius: var(--border-radius-md);
  padding: 1rem;
  text-align: center;
  position: relative;
  z-index: 2;
  transition: all var(--transition-normal);
}

.curriculum-step:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--course-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.step-num {
  font-family: var(--font-headings);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--course-color);
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.25rem;
}

.step-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* Connective lines between steps */
.curriculum-steps::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 10%;
  width: 80%;
  height: 2px;
  background: linear-gradient(90deg, 
    var(--border-glass) 0%, 
    rgba(255, 255, 255, 0.05) 50%, 
    var(--border-glass) 100%
  );
  z-index: 1;
}

/* Responsive adjustment */
@media (max-width: 992px) {
  .courses-showcase {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  
  .courses-nav-list {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 1rem;
    gap: 1rem;
    scrollbar-width: thin;
  }
  
  .courses-nav-item {
    flex: 1 0 280px;
    padding: 1.5rem;
  }
  
  .courses-display {
    min-height: auto;
  }
  
  .course-pane {
    position: relative;
  }

  .course-pane.active {
    position: relative;
  }
}

@media (max-width: 576px) {
  .curriculum-steps {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  
  .curriculum-steps::after {
    display: none;
  }
  
  .pane-card {
    padding: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .courses-nav-item.active,
  .course-pane.active .pane-card,
  .course-pane.active .pane-badge,
  .course-pane.active .pane-desc,
  .course-pane.active .pane-keywords,
  .course-pane.active .curriculum-map,
  .course-pane.active .keyword-tag,
  .course-pane.active .curriculum-step {
    animation: none;
    filter: none;
  }

  .courses-nav-item::after {
    transition: none;
  }
}