/* ==========================================================================
   ROBOTICMINDS - UI COMPONENTS
   Atomic & Molecular Components following Component Architecture Guidelines
   ========================================================================== */

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: 700;
  line-height: 1;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  text-align: center;
  position: relative;
  overflow: hidden;
  min-height: 48px; /* Touch target minimum */
  cursor: pointer;
  user-select: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background: var(--color-accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn--primary:hover {
  box-shadow: 0 8px 25px rgba(56, 189, 248, 0.5);
  transform: translateY(-2px);
}

.btn--glow {
  position: relative;
}

.btn--glow::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--color-accent-gradient);
  border-radius: inherit;
  filter: blur(10px);
  opacity: 0.5;
  z-index: -1;
  transition: opacity var(--transition-base);
}

.btn--glow:hover::before {
  opacity: 0.9;
}

.btn--secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
  background: var(--bg-surface-subtle);
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--text-inverse);
  transform: translateY(-2px);
}

.btn--lg {
  padding: 1.1rem 2.25rem;
  font-size: var(--fs-base);
}

.btn--sm {
  padding: 0.5rem 1.1rem;
  font-size: var(--fs-xs);
  min-height: 38px;
}

.btn--full {
  width: 100%;
}

.btn-icon {
  display: inline-flex;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

/* ==========================================================================
   Badges & Tags
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 700;
  line-height: 1;
}

.badge--cyan {
  background: rgba(56, 189, 248, 0.15);
  color: #0369a1;
  border: 1px solid rgba(56, 189, 248, 0.3);
}

[data-theme="dark"] .badge--cyan {
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.35);
}

.badge--purple {
  background: rgba(147, 51, 234, 0.12);
  color: #6b21a8;
  border: 1px solid rgba(147, 51, 234, 0.25);
}

[data-theme="dark"] .badge--purple {
  color: #c084fc;
  border-color: rgba(192, 132, 252, 0.3);
}

.badge--green {
  background: rgba(16, 185, 129, 0.12);
  color: #047857;
  border: 1px solid rgba(16, 185, 129, 0.25);
}

[data-theme="dark"] .badge--green {
  color: #34d399;
}

.badge--orange {
  background: rgba(245, 158, 11, 0.12);
  color: #b45309;
  border: 1px solid rgba(245, 158, 11, 0.25);
}

[data-theme="dark"] .badge--orange {
  color: #fbbf24;
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(56, 189, 248, 0.4);
}

.card--glass {
  background: var(--bg-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* Course Card */
.course-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
}

.course-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-primary);
}

.course-card__header {
  position: relative;
  height: 200px;
  overflow: hidden;
  background: linear-gradient(135deg, #1e293b, #0f172a);
}

.course-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.course-card:hover .course-card__image {
  transform: scale(1.06);
}

.course-card__badge-bar {
  position: absolute;
  top: 1rem;
  left: 1rem;
  right: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2;
}

.course-card__body {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  flex: 1;
}

.course-card__age {
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.course-card__title {
  font-size: var(--fs-lg);
  margin-bottom: 0.75rem;
}

.course-card__desc {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
  margin-bottom: 1.25rem;
  flex: 1;
}

.course-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.course-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-subtle);
}

/* Feature / Pillar Card */
.feature-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background: var(--color-accent-gradient);
  transition: height var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.4);
  box-shadow: var(--shadow-card-hover);
}

.feature-card:hover::before {
  height: 100%;
}

.feature-card__icon-box {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: grid;
  place-items: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
  transition: all var(--transition-base);
}

.feature-card:hover .feature-card__icon-box {
  background: var(--color-primary);
  color: #ffffff;
  transform: scale(1.1) rotate(5deg);
}

.feature-card__title {
  font-size: var(--fs-md);
  margin-bottom: 0.65rem;
}

.feature-card__text {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
}

/* ==========================================================================
   Filter Switcher / Tabs
   ========================================================================== */
.filter-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 3rem;
  padding: 0.35rem;
  background: var(--bg-surface-subtle);
  border-radius: var(--radius-full);
  max-width: fit-content;
  margin-inline: auto;
  border: 1px solid var(--border-subtle);
}

.filter-btn {
  padding: 0.65rem 1.35rem;
  font-size: var(--fs-sm);
  font-weight: 700;
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  color: var(--text-primary);
}

.filter-btn.is-active {
  background: var(--color-accent-gradient);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

/* ==========================================================================
   Interactive Quiz Card
   ========================================================================== */
.quiz-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: clamp(1.5rem, 4vw, 3rem);
  box-shadow: var(--shadow-xl);
  max-width: 820px;
  margin-inline: auto;
  position: relative;
  overflow: hidden;
}

.quiz-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--color-accent-gradient);
}

.quiz-progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-surface-subtle);
  border-radius: var(--radius-full);
  margin-bottom: 2rem;
  overflow: hidden;
}

.quiz-progress-bar__fill {
  height: 100%;
  width: 33.33%;
  background: var(--color-accent-gradient);
  border-radius: var(--radius-full);
  transition: width var(--transition-base);
}

.quiz-step {
  display: none;
  animation: fadeIn 300ms ease forwards;
}

.quiz-step.is-active {
  display: block;
}

.quiz-question-title {
  font-size: var(--fs-xl);
  margin-bottom: 0.5rem;
  text-align: center;
}

.quiz-question-subtitle {
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 2rem;
}

.quiz-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.quiz-option-card {
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: var(--bg-surface-elevated);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.quiz-option-card:hover {
  border-color: var(--color-primary);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.quiz-option-card.is-selected {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.quiz-option-card__icon {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

.quiz-option-card__label {
  font-weight: 700;
  font-size: var(--fs-base);
  color: var(--text-primary);
}

.quiz-option-card__desc {
  font-size: var(--fs-xs);
  color: var(--text-secondary);
}

.quiz-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
}

/* Quiz Result */
.quiz-result {
  text-align: center;
  display: none;
  animation: fadeIn 400ms ease forwards;
}

.quiz-result.is-active {
  display: block;
}

.quiz-result__trophy {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  animation: bounce 1s infinite alternate ease-in-out;
}

.quiz-result__match-card {
  background: var(--bg-surface-subtle);
  border: 2px dashed var(--color-primary);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin: 1.5rem 0 2rem;
  text-align: left;
}

/* ==========================================================================
   Accordion (FAQ)
   ========================================================================== */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 820px;
  margin-inline: auto;
}

.accordion-item {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.accordion-item:hover {
  border-color: var(--border-default);
}

.accordion-item.is-open {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.accordion-trigger {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  font-size: var(--fs-base);
  font-weight: 700;
  text-align: left;
  color: var(--text-primary);
  cursor: pointer;
  background: none;
}

.accordion-trigger .accordion-icon {
  font-size: 1.25rem;
  transition: transform var(--transition-base);
  color: var(--color-primary);
}

.accordion-item.is-open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion-body {
  padding: 0 1.5rem 1.5rem 1.5rem;
  font-size: var(--fs-sm);
  color: var(--text-secondary);
  line-height: var(--lh-normal);
}

/* ==========================================================================
   Form Controls & Inputs
   ========================================================================== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.25rem;
  text-align: left;
}

.form-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-surface-elevated);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--fs-base);
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.25);
  outline: none;
}

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

/* ==========================================================================
   Modal / Dialog
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  padding: 1.5rem;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
}

.modal-overlay.is-active {
  opacity: 1;
  visibility: visible;
}

.modal-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: min(100%, 540px);
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  padding: clamp(1.5rem, 5vw, 2.5rem);
  position: relative;
  transform: translateY(20px) scale(0.95);
  transition: transform var(--transition-bounce);
}

.modal-overlay.is-active .modal-container {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-subtle);
  color: var(--text-secondary);
  display: grid;
  place-items: center;
  font-size: 1.25rem;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
  transform: rotate(90deg);
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}

.toast {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-default);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
  padding: 1rem 1.25rem;
  box-shadow: var(--shadow-lg);
  color: var(--text-primary);
  font-size: var(--fs-sm);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 280px;
  max-width: 400px;
  pointer-events: auto;
  animation: slideInRight 300ms ease forwards;
}

/* ==========================================================================
   Keyframe Animations
   ========================================================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes bounce {
  from { transform: translateY(0); }
  to { transform: translateY(-10px); }
}

@keyframes floatAnim {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* ==========================================================================
   Lab Maker Live Status Badge & Pulse Indicator
   ========================================================================== */
.lab-status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: var(--fs-xs);
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
}

.lab-status-pill:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.lab-status-pill--open {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.4);
  color: #059669;
}

[data-theme="dark"] .lab-status-pill--open {
  color: #34d399;
  background: rgba(16, 185, 129, 0.15);
}

.lab-status-pill--closed {
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.3);
  color: #dc2626;
}

[data-theme="dark"] .lab-status-pill--closed {
  color: #f87171;
  background: rgba(239, 68, 68, 0.15);
}

.lab-status-pill--lunch {
  background: rgba(245, 158, 11, 0.1);
  border-color: rgba(245, 158, 11, 0.35);
  color: #d97706;
}

[data-theme="dark"] .lab-status-pill--lunch {
  color: #fbbf24;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  position: relative;
  display: inline-block;
}

.pulse-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  animation: pulseRing 1.8s cubic-bezier(0.24, 0, 0.38, 1) infinite;
}

.pulse-dot--open {
  background: #10b981;
}
.pulse-dot--open::after {
  background: rgba(16, 185, 129, 0.5);
}

.pulse-dot--closed {
  background: #ef4444;
}
.pulse-dot--closed::after {
  background: rgba(239, 68, 68, 0.5);
}

.pulse-dot--lunch {
  background: #f59e0b;
}
.pulse-dot--lunch::after {
  background: rgba(245, 158, 11, 0.5);
}

@keyframes pulseRing {
  0% { transform: scale(0.9); opacity: 0.8; }
  70% { transform: scale(2.4); opacity: 0; }
  100% { transform: scale(2.4); opacity: 0; }
}