/* ==========================================================================
   WA R-Code Interpreter - Premium Design System (index.css)
   Aesthetic: Deep Space Dark Mode, Glassmorphism, Neon/Teal Glowing Gradients
   ========================================================================== */

:root {
  /* Colors */
  --bg-dark-1: #060713;
  --bg-dark-2: #0b0c1e;
  --bg-dark-3: #11132a;
  
  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-teal: #00e5a3;
  --accent-glow-teal: rgba(0, 229, 163, 0.3);
  --accent-glow-blue: rgba(79, 172, 254, 0.3);
  
  --accent-gradient: linear-gradient(135deg, var(--accent-cyan) 0%, var(--accent-blue) 100%);
  --accent-gradient-teal: linear-gradient(135deg, var(--accent-teal) 0%, var(--accent-blue) 100%);
  --accent-gradient-warm: linear-gradient(135deg, #ff9a9e 0%, #fecfef 99%, #fecfef 100%);
  
  --card-bg: rgba(17, 19, 42, 0.55);
  --card-bg-hover: rgba(22, 25, 54, 0.7);
  --card-border: rgba(255, 255, 255, 0.07);
  --card-border-glow: rgba(0, 242, 254, 0.3);
  
  --text-main: #f3f4f9;
  --text-secondary: #a9b2c8;
  --text-muted: #6e7992;
  
  /* Status Colors */
  --color-success: #00e5a3;
  --color-info: #3b82f6;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;

  /* Typography */
  --font-family-title: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-family-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Layout */
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-glow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --transition-smooth: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* --- Base Resets & Ambient Scenery --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-dark-1);
  color: var(--text-main);
  font-family: var(--font-family-body);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

/* Ambient glow background orbs */
.glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  z-index: -1;
  opacity: 0.15;
  pointer-events: none;
}

.glow-orb-1 {
  width: 400px;
  height: 400px;
  background: var(--accent-cyan);
  top: -100px;
  right: -50px;
  animation: floatOrb 12s ease-in-out infinite alternate;
}

.glow-orb-2 {
  width: 500px;
  height: 500px;
  background: var(--accent-teal);
  bottom: -150px;
  left: -100px;
  animation: floatOrb 15s ease-in-out infinite alternate-reverse;
}

.glow-orb-3 {
  width: 300px;
  height: 300px;
  background: #7928ca;
  top: 40%;
  left: 35%;
  opacity: 0.08;
}

@keyframes floatOrb {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(50px) scale(1.1); }
}

/* --- App Shell Layout --- */
.app-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

/* --- Header Section --- */
.app-header {
  text-align: center;
  margin-bottom: 20px;
  animation: fadeInDown 0.8s ease-out;
}

.header-logo {
  display: inline-flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 15px;
}

.header-icon {
  width: 45px;
  height: 45px;
  filter: drop-shadow(0 0 10px rgba(0, 242, 254, 0.4));
}

.logo-text {
  font-family: var(--font-family-title);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.accent-text {
  background: var(--accent-gradient-teal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 700px;
  margin: 0 auto;
  font-weight: 300;
}

/* --- Premium Form & Interactive Elements --- */
.calculator-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-glow);
  display: flex;
  flex-direction: column;
  gap: 25px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-smooth);
}

.calculator-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent-gradient-teal);
}

.calculator-card:hover {
  background: var(--card-bg-hover);
  border-color: rgba(255, 255, 255, 0.1);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.input-label {
  font-family: var(--font-family-title);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Zoning & Dwelling toggles */
.toggle-container {
  display: flex;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 4px;
}

.toggle-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: var(--font-family-body);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 12px 20px;
  border-radius: calc(var(--radius-md) - 2px);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.toggle-btn:hover {
  color: var(--text-main);
}

.toggle-btn.active {
  background: var(--accent-gradient-teal);
  color: #060713;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(0, 229, 163, 0.25);
}

/* Dual Select and Inputs Grid */
.input-grid, .options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

@media (max-width: 768px) {
  .input-grid, .options-grid {
    grid-template-columns: 1fr;
  }
}

/* Number inputs with unit tags */
.input-with-unit {
  position: relative;
  display: flex;
  align-items: center;
}

.input-with-unit input {
  width: 100%;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-family-body);
  font-size: 1.1rem;
  padding: 14px 60px 14px 18px;
  transition: var(--transition-smooth);
}

.input-with-unit input:focus {
  outline: none;
  border-color: var(--accent-teal);
  box-shadow: 0 0 15px var(--accent-glow-teal);
  background: rgba(0, 0, 0, 0.4);
}

.unit-badge {
  position: absolute;
  right: 18px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent-teal);
  background: rgba(0, 229, 163, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

/* Styled Select Elements */
.select-wrapper {
  position: relative;
}

.select-wrapper::after {
  content: '▼';
  font-size: 0.75rem;
  color: var(--text-secondary);
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
}

select {
  width: 100%;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-family-body);
  font-size: 1.05rem;
  padding: 14px 40px 14px 18px;
  appearance: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 15px var(--accent-glow-blue);
  background: rgba(0, 0, 0, 0.4);
}

select option {
  background: var(--bg-dark-3);
  color: var(--text-main);
}

/* Dual split code drop selectors layout */
.dual-select-grid {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dual-select-grid .select-wrapper {
  flex: 1;
}

.slash-separator {
  font-size: 1.8rem;
  font-family: var(--font-family-title);
  color: var(--text-muted);
  font-weight: 300;
}

/* Popular Split Code Chips */
.popular-dual-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 15px;
}

.popular-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.chip-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dual-chip {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  border-radius: 30px;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.dual-chip:hover {
  background: rgba(0, 242, 254, 0.1);
  border-color: var(--accent-cyan);
  color: var(--text-main);
  transform: translateY(-2px);
}

/* Custom Checkbox Design */
.checkbox-container {
  display: flex;
  align-items: center;
  cursor: pointer;
}

.checkbox-container input[type="checkbox"] {
  display: none;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  user-select: none;
}

.checkbox-box {
  width: 22px;
  height: 22px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-smooth);
}

.checkbox-container input[type="checkbox"]:checked + .checkbox-label .checkbox-box {
  background: var(--accent-gradient-teal);
  border-color: var(--accent-teal);
  box-shadow: 0 0 10px rgba(0, 229, 163, 0.4);
}

.checkbox-container input[type="checkbox"]:checked + .checkbox-label .checkbox-box::after {
  content: '✓';
  color: #060713;
  font-weight: 800;
  font-size: 0.95rem;
}

.checkbox-text {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-main);
}

.helper-text {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* Advanced Apartment Slider Panel */
.apartment-settings-panel {
  background: rgba(0, 0, 0, 0.2);
  border: 1px dashed rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  animation: fadeIn 0.4s ease-out;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-val-badge {
  background: var(--accent-gradient-teal);
  color: #060713;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  box-shadow: 0 2px 8px rgba(0, 229, 163, 0.3);
}

.premium-slider {
  width: 100%;
  appearance: none;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  outline: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.premium-slider::-webkit-slider-thumb {
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--accent-teal);
  box-shadow: 0 0 10px var(--accent-glow-teal);
  transition: var(--transition-smooth);
}

.premium-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.slider-limits {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.apartment-info-note {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
  background: rgba(255, 255, 255, 0.02);
  padding: 10px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-blue);
}

/* --- RESULTS DISPLAY DESIGN --- */
.results-section {
  animation: fadeInUp 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.result-card-container {
  background: rgba(13, 14, 33, 0.8);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 35px;
  box-shadow: var(--shadow-glow), 0 0 30px rgba(0, 242, 254, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
}

/* Yield Big Counter UI */
.result-badge-row {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 5px;
}

.yield-badge {
  padding: 6px 14px;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.badge-success {
  background: rgba(0, 229, 163, 0.15);
  color: var(--color-success);
  border: 1px solid rgba(0, 229, 163, 0.3);
}

.badge-info {
  background: rgba(59, 130, 246, 0.15);
  color: var(--color-info);
  border: 1px solid rgba(59, 130, 246, 0.3);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: var(--color-warning);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.result-subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.yield-display {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin: 15px 0 25px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  padding-bottom: 25px;
}

.yield-number {
  font-family: var(--font-family-title);
  font-size: 7.5rem;
  font-weight: 900;
  line-height: 1;
  background: var(--accent-gradient-teal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 15px rgba(0, 229, 163, 0.3));
}

.yield-text {
  font-family: var(--font-family-title);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-main);
}

.result-details-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 30px;
}

@media (max-width: 768px) {
  .result-details-grid {
    grid-template-columns: 1fr;
  }
}

.detail-block h4 {
  font-family: var(--font-family-title);
  font-size: 1.05rem;
  color: var(--text-main);
  margin-bottom: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-explanation {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.result-explanation strong {
  color: var(--text-main);
  font-weight: 600;
}

.result-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.result-specs li {
  display: flex;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.02);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.spec-label {
  color: var(--text-secondary);
  font-weight: 500;
}

.spec-value {
  color: var(--accent-cyan);
  font-weight: 700;
}

/* DUAL CALCULATOR DYNAMIC RENDER */
.uplift-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: rgba(0, 242, 254, 0.04);
  border: 1px solid rgba(0, 242, 254, 0.15);
  border-radius: var(--radius-md);
  padding: 25px;
  margin-bottom: 30px;
}

.uplift-positive {
  background: rgba(0, 229, 163, 0.04);
  border-color: rgba(0, 229, 163, 0.2);
}

.uplift-number {
  font-family: var(--font-family-title);
  font-size: 4rem;
  font-weight: 900;
  line-height: 1.1;
  background: var(--accent-gradient-teal);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 10px rgba(0, 229, 163, 0.2));
}

.uplift-text {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 5px;
}

.dual-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 25px;
  margin-bottom: 30px;
}

@media (max-width: 768px) {
  .dual-cards-grid {
    grid-template-columns: 1fr;
  }
}

.side-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.side-card:hover {
  border-color: rgba(255, 255, 255, 0.09);
  transform: translateY(-2px);
}

.side-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  background: rgba(0, 0, 0, 0.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.side-card-header span:first-child {
  font-family: var(--font-family-title);
  font-weight: 700;
  font-size: 1.1rem;
}

.side-card-header span:last-child {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent-teal);
  background: rgba(0, 229, 163, 0.1);
  padding: 4px 10px;
  border-radius: 20px;
}

.base-card .side-card-header span:last-child {
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
}

.side-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.base-explanation, .high-explanation {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.base-specs, .high-specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.base-specs li, .high-specs li {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  background: rgba(0, 0, 0, 0.1);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}

/* Unlock Conditions Box */
.conditions-box {
  background: rgba(245, 158, 11, 0.03);
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: var(--radius-md);
  padding: 25px;
}

.conditions-box h4 {
  font-family: var(--font-family-title);
  color: var(--color-warning);
  margin-bottom: 15px;
  font-weight: 700;
}

.unlocked-conditions {
  list-style-type: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 15px;
}

.unlocked-conditions li {
  position: relative;
  padding-left: 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.unlocked-conditions li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-warning);
  font-weight: 700;
}

.conditions-foot {
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 10px;
}

/* --- THE REFERENCE TABLE DESIGN --- */
.reference-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow-glow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.reference-header {
  margin-bottom: 25px;
}

.reference-header h3 {
  font-family: var(--font-family-title);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.reference-header p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Search Bar layout */
.reference-search-bar {
  position: relative;
  margin-bottom: 20px;
}

.reference-search-bar input {
  width: 100%;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: var(--font-family-body);
  font-size: 1rem;
  padding: 14px 20px 14px 50px;
  transition: var(--transition-smooth);
}

.reference-search-bar input:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px var(--accent-glow-blue);
}

.search-icon {
  position: absolute;
  left: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* Interactive Table UI */
.table-scroll-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.reference-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}

.reference-table th {
  background: rgba(0, 0, 0, 0.3);
  color: var(--text-main);
  font-family: var(--font-family-title);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  padding: 16px 20px;
}

.reference-table td {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}

.reference-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-main);
}

.font-bold {
  font-family: var(--font-family-title);
  font-weight: 700;
  color: var(--text-main);
}

.use-code-btn {
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  color: var(--accent-cyan);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-family: var(--font-family-body);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.use-code-btn:hover {
  background: var(--accent-gradient);
  color: #060713;
  border-color: transparent;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.3);
  transform: translateY(-1px);
}

/* Custom Scrollbar for Scrolling Elements */
.table-scroll-container::-webkit-scrollbar {
  height: 8px;
}

.table-scroll-container::-webkit-scrollbar-track {
  background: var(--bg-dark-1);
}

.table-scroll-container::-webkit-scrollbar-thumb {
  background: var(--bg-dark-3);
  border-radius: 10px;
}

.table-scroll-container::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- FOOTER & DISCLAIMER --- */
.app-footer {
  margin-top: 30px;
  animation: fadeInUp 0.8s ease-out;
}

.footer-divider {
  height: 1px;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.06) 50%, rgba(255,255,255,0) 100%);
  margin-bottom: 30px;
}

.disclaimer-box {
  background: rgba(17, 19, 42, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 25px;
}

.disclaimer-box p {
  color: var(--text-muted);
  font-size: 0.82rem;
  line-height: 1.6;
}

.disclaimer-box strong {
  color: var(--text-secondary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

.footer-links a {
  color: var(--accent-blue);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.footer-links a:hover {
  color: var(--accent-cyan);
  text-decoration: underline;
}

/* --- ANIMATION HELPERS --- */
.fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

.hidden {
  display: none !important;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}