/* ===== BEFF Tool — GTA-Inspired Dark Theme ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Orbitron:wght@400;500;700;900&display=swap');

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-card: #1a1a2e;
  --bg-card-hover: #22223a;
  --bg-input: #16162a;
  --border: rgba(139, 92, 246, 0.15);
  --border-active: rgba(139, 92, 246, 0.5);

  --text-primary: #e8e8f0;
  --text-secondary: #9898b8;
  --text-muted: #6868a0;

  --accent-purple: #8b5cf6;
  --accent-green: #22d3ee;
  --accent-orange: #f59e0b;
  --accent-red: #ef4444;
  --accent-blue: #3b82f6;
  --accent-pink: #ec4899;

  --glow-purple: 0 0 20px rgba(139, 92, 246, 0.3);
  --glow-green: 0 0 20px rgba(34, 211, 238, 0.3);

  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  padding-bottom: 44px;
}

/* ===== HEADER ===== */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 64px;
  gap: 32px;
}

.logo {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-green));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 2px;
  white-space: nowrap;
}

.logo span {
  font-size: 0.7rem;
  font-family: 'Inter', sans-serif;
  font-weight: 400;
  -webkit-text-fill-color: var(--text-muted);
  letter-spacing: 0;
  margin-left: 8px;
}

/* ===== TAB NAV ===== */
.tab-nav {
  display: flex;
  gap: 4px;
  flex: 1;
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(139, 92, 246, 0.1);
}

.tab-btn.active {
  color: var(--accent-purple);
  background: rgba(139, 92, 246, 0.15);
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 2px;
  background: var(--accent-purple);
  border-radius: 1px;
}

.tab-icon {
  margin-right: 6px;
  font-size: 1rem;
}

/* ===== MAIN LAYOUT ===== */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}

.tab-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== WELCOME CARDS ===== */
.welcome-card {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.08), rgba(34, 211, 238, 0.05));
  border-color: rgba(139, 92, 246, 0.25);
  margin-bottom: 16px;
}

.welcome-prereqs {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.prereq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 8px;
}

.prereq-item {
  padding: 8px 12px;
  background: rgba(10, 10, 15, 0.5);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.prereq-item strong {
  color: var(--text-primary);
}

/* ===== TERMS GLOSSARY ===== */
.terms-content {
  padding-top: 16px;
}

.terms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 10px;
}

.term-card {
  padding: 12px 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.term-name {
  font-weight: 700;
  color: var(--accent-green);
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.term-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.term-desc strong {
  color: var(--text-primary);
}

/* ===== CARDS ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--border-active);
  box-shadow: var(--glow-purple);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ===== BADGE ===== */
.badge {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-purple {
  background: rgba(139, 92, 246, 0.2);
  color: var(--accent-purple);
}

.badge-green {
  background: rgba(34, 211, 238, 0.2);
  color: var(--accent-green);
}

.badge-orange {
  background: rgba(245, 158, 11, 0.2);
  color: var(--accent-orange);
}

.badge-red {
  background: rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
}

.badge-blue {
  background: rgba(59, 130, 246, 0.2);
  color: var(--accent-blue);
}

.badge-pink {
  background: rgba(236, 72, 153, 0.2);
  color: var(--accent-pink);
}

/* ===== FORM CONTROLS ===== */
.controls-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  align-items: center;
}

.search-box {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 10px 16px 10px 40px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}

.search-box input:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: var(--glow-purple);
}

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

.search-box .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}

select {
  padding: 10px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  cursor: pointer;
  transition: var(--transition);
  min-width: 140px;
}

select:focus {
  outline: none;
  border-color: var(--accent-purple);
}

/* ===== GENDER TOGGLE ===== */
.gender-toggle {
  display: flex;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.gender-btn {
  border: none;
  background: none;
  color: var(--text-secondary);
  padding: 10px 20px;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.gender-btn.active {
  background: var(--accent-purple);
  color: white;
}

.gender-btn:hover:not(.active) {
  background: rgba(139, 92, 246, 0.1);
}

/* ===== COMPONENT TABLE ===== */
.component-grid {
  display: grid;
  gap: 8px;
  max-height: 65vh;
  overflow-y: auto;
  padding-right: 8px;
}

.component-grid::-webkit-scrollbar {
  width: 6px;
}

.component-grid::-webkit-scrollbar-track {
  background: transparent;
}

.component-grid::-webkit-scrollbar-thumb {
  background: var(--border-active);
  border-radius: 3px;
}

.comp-row {
  display: grid;
  grid-template-columns: 70px 1fr 100px 40px;
  align-items: center;
  padding: 10px 16px;
  background: var(--bg-secondary);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  gap: 12px;
}

.comp-row:hover {
  background: var(--bg-card-hover);
  border-color: var(--border);
}

.comp-row.expanded {
  border-color: var(--accent-purple);
  background: var(--bg-card);
}

.comp-id {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-purple);
}

.comp-name {
  font-size: 0.9rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.comp-tex-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
}

.comp-arrow {
  color: var(--text-muted);
  font-size: 0.8rem;
  transition: var(--transition);
  text-align: center;
}

.comp-row.expanded .comp-arrow {
  transform: rotate(180deg);
  color: var(--accent-purple);
}

.comp-textures {
  display: none;
  padding: 8px 16px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  margin-top: -8px;
}

.comp-textures.show {
  display: block;
}

.tex-row {
  display: grid;
  grid-template-columns: 50px 1fr;
  padding: 4px 8px;
  font-size: 0.8rem;
  gap: 12px;
  border-radius: 4px;
}

.tex-row:hover {
  background: rgba(139, 92, 246, 0.05);
}

.tex-id {
  color: var(--accent-green);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.75rem;
}

.tex-name {
  color: var(--text-secondary);
}

.result-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 4px 0;
}

/* ===== OUTFIT BUILDER ===== */
.builder-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 900px) {
  .builder-layout {
    grid-template-columns: 1fr;
  }
}

.slot-grid {
  display: grid;
  gap: 8px;
}

.slot-card {
  display: grid;
  grid-template-columns: 50px 1fr auto;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  gap: 12px;
  cursor: pointer;
  transition: var(--transition);
}

.slot-card:hover {
  border-color: var(--border-active);
}

.slot-card.active {
  border-color: var(--accent-purple);
  box-shadow: var(--glow-purple);
}

.slot-id {
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--accent-green);
  text-align: center;
}

.slot-label {
  font-size: 0.9rem;
  font-weight: 500;
}

.slot-value {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: right;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.builder-detail {
  position: sticky;
  top: 80px;
}

.c-row {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 12px;
  margin-bottom: 12px;
  align-items: start;
}

.c-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding-top: 10px;
}

.c-label.c1 {
  color: var(--accent-blue);
}

.c-label.c2 {
  color: var(--accent-orange);
}

.c-label.merge {
  color: var(--accent-pink);
}

.c-select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
}

.parachute-indicator {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-sm);
  margin-top: 12px;
}

.parachute-indicator .icon {
  font-size: 1.5rem;
}

.parachute-indicator .label {
  font-size: 0.9rem;
  font-weight: 600;
}

.parachute-indicator .detail {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

/* ===== WORKFLOW / PHASES ===== */
.phase-progress {
  margin-bottom: 20px;
}

.phase-progress-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.workflow-phases {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.phase-btn {
  border: none;
  background: var(--bg-card);
  color: var(--text-secondary);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  border: 1px solid var(--border);
}

.phase-btn:hover {
  border-color: var(--border-active);
}

.phase-btn.active {
  background: var(--accent-purple);
  color: white;
  border-color: var(--accent-purple);
}

.phase-btn.completed {
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent-green);
  border-color: rgba(34, 211, 238, 0.3);
}

.step-list {
  display: grid;
  gap: 12px;
}

.step-card {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.step-number {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
  border-radius: 50%;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
}

.step-title {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.step-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-console {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  margin-right: 4px;
}

.step-console.c1 {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
}

.step-console.c2 {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-orange);
}

.step-tip {
  margin-top: 8px;
  padding: 8px 12px;
  background: rgba(34, 211, 238, 0.05);
  border-left: 3px solid var(--accent-green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.8rem;
  color: var(--accent-green);
}

.step-warn {
  margin-top: 8px;
  padding: 8px 12px;
  background: rgba(239, 68, 68, 0.05);
  border-left: 3px solid var(--accent-red);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.8rem;
  color: var(--accent-red);
}

/* ===== KNOWLEDGE BASE ===== */
.kb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

.kb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.kb-table th {
  text-align: left;
  padding: 8px 12px;
  color: var(--accent-purple);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
}

.kb-table td {
  padding: 8px 12px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(139, 92, 246, 0.05);
}

.kb-table tr:hover td {
  color: var(--text-primary);
}

.tip-card {
  padding: 14px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-secondary);
}

.tip-card strong {
  color: var(--accent-green);
}

.tip-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background: rgba(139, 92, 246, 0.2);
  color: var(--accent-purple);
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 700;
  margin-right: 8px;
}

/* ===== PARACHUTE HELPER ===== */
.para-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

@media (max-width: 800px) {
  .para-layout {
    grid-template-columns: 1fr;
  }
}

.para-card {
  padding: 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
}

.para-card.classic {
  border-color: rgba(59, 130, 246, 0.3);
}

.para-card.classic:hover,
.para-card.classic.active {
  border-color: var(--accent-blue);
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.2);
}

.para-card.israel {
  border-color: rgba(245, 158, 11, 0.3);
}

.para-card.israel:hover,
.para-card.israel.active {
  border-color: var(--accent-orange);
  box-shadow: 0 0 30px rgba(245, 158, 11, 0.2);
}

.para-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.para-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.para-slots {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.para-slot-tag {
  display: inline-block;
  padding: 4px 10px;
  margin: 4px;
  background: rgba(139, 92, 246, 0.1);
  border-radius: 20px;
  font-size: 0.8rem;
  color: var(--text-primary);
}

/* ===== STATS FOOTER ===== */
.stats-bar {
  display: flex;
  gap: 24px;
  padding: 12px 24px;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
  justify-content: center;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
}

.stat-item strong {
  color: var(--accent-purple);
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.empty-state h3 {
  color: var(--text-secondary);
  margin-bottom: 8px;
}

/* ===== TUTORIAL CARDS ===== */
.tutorial-select-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 10px;
}

.tutorial-card {
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
}

.tutorial-card:hover {
  border-color: var(--border-active);
}

.tutorial-card.active {
  border-color: var(--accent-purple);
  box-shadow: var(--glow-purple);
}

.tutorial-card .tut-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.tutorial-card .tut-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.tutorial-card .tut-gender {
  display: inline-block;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 12px;
  margin-bottom: 6px;
  font-weight: 600;
}

.tut-gender.female {
  background: rgba(236, 72, 153, 0.15);
  color: var(--accent-pink);
}

.tut-gender.male {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
}

.tut-gender.both {
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
}

.recipe-steps {
  display: grid;
  gap: 16px;
}

.recipe-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
}

.recipe-step:hover {
  border-color: var(--border-active);
}

.recipe-step-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.recipe-step-num {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(139, 92, 246, 0.15);
  color: var(--accent-purple);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.recipe-step-title {
  font-size: 1rem;
  font-weight: 600;
}

.recipe-item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.recipe-item {
  padding: 10px 14px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.recipe-item .label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.recipe-item .label.c1 {
  color: var(--accent-blue);
}

.recipe-item .label.c2 {
  color: var(--accent-orange);
}

.recipe-item .label.merge {
  color: var(--accent-pink);
}

.recipe-item .label.para {
  color: var(--accent-green);
}

.recipe-item .value {
  font-size: 0.9rem;
  font-weight: 500;
}

.alt-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--accent-green);
  cursor: pointer;
  border: none;
  background: none;
  font-family: 'Inter', sans-serif;
  padding: 4px 0;
  transition: var(--transition);
}

.alt-toggle:hover {
  color: var(--text-primary);
}

.alt-list {
  display: none;
  margin-top: 8px;
  padding: 10px 14px;
  background: rgba(34, 211, 238, 0.03);
  border: 1px solid rgba(34, 211, 238, 0.15);
  border-radius: var(--radius-sm);
}

.alt-list.show {
  display: block;
}

.alt-list .alt-heading {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-green);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.alt-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  font-size: 0.85rem;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(139, 92, 246, 0.05);
}

.alt-item:last-child {
  border-bottom: none;
}

.alt-item .alt-name {
  flex: 1;
}

.alt-item .alt-note {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .header-inner {
    height: auto;
    flex-wrap: wrap;
    padding: 12px 0;
    gap: 8px;
  }

  .tab-nav {
    overflow-x: auto;
  }

  .main-content {
    padding: 16px;
  }

  .builder-layout {
    grid-template-columns: 1fr;
  }

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

  .comp-row {
    grid-template-columns: 60px 1fr 80px 30px;
  }

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

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