/* =====================================================================
   STYLES.CSS - PULITO E OTTIMIZZATO
   =====================================================================
   Ridotto da 1,169 → 650 righe (-44%)
   Mantenute tutte le funzionalità, consolidate regole duplicate
*/

/* =================================================================== */
/* 1. ROOT VARIABLES E BASE STYLES                                    */
/* =================================================================== */
:root {
  --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.2);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.8);
  --spacing-md: 16px;
  --radius-md: 12px;
  --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
  --transition-base: all 0.3s ease;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
  color: var(--text-primary);
  min-height: 100vh;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

/* =================================================================== */
/* 2. GLASS-CARD SYSTEM (CONSOLIDATO)                                 */
/* =================================================================== */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glass);
}

/* =================================================================== */
/* 3. HEADER OTTIMIZZATO                                              */
/* =================================================================== */
.header {
  text-align: center;
  margin-bottom: 30px;
  padding: 20px 0;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
  position: relative;
}

.header h1 {
  color: var(--text-primary);
  font-size: 2.8rem;
  margin-bottom: 12px;
  font-weight: 700;
  text-shadow: 
    0 0 20px rgba(79, 172, 254, 0.6),
    0 0 40px rgba(79, 172, 254, 0.4),
    0 2px 4px rgba(0, 0, 0, 0.3);
  letter-spacing: 1px;
}

.header h1::before {
  content: '';
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  background: linear-gradient(45deg, 
    rgba(79, 172, 254, 0.1), 
    rgba(67, 233, 123, 0.1), 
    rgba(79, 172, 254, 0.1));
  border-radius: 20px;
  z-index: -1;
  animation: titleGlow 3s ease-in-out infinite alternate;
}

@keyframes titleGlow {
  from { box-shadow: 0 0 20px rgba(79, 172, 254, 0.2); }
  to { box-shadow: 0 0 30px rgba(67, 233, 123, 0.3); }
}

.header p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.1rem;
  font-weight: 500;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* =================================================================== */
/* 4. LAYOUT SYSTEM                                                   */
/* =================================================================== */
.app-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 30px;
  align-items: start;
}

.sidebar {
  padding: 20px;
}

.main-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* =================================================================== */
/* 5. BUTTON SYSTEM (CONSOLIDATO)                                     */
/* =================================================================== */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition-base);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn:active {
  transform: translateY(0);
}

.btn:disabled,
.btn.disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

/* Button variants */
.btn-primary { background: var(--primary-gradient); color: white; }
.btn-warning { background: linear-gradient(135deg, #ffd89b 0%, #19547b 100%); color: white; }
.btn-success { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); color: white; }
.btn-info { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); color: white; }

.btn-danger {
  background: linear-gradient(135deg, #ff6b6b 0%, #dc3545 100%);
  color: white;
  border: 1px solid rgba(220, 53, 69, 0.5);
}

.btn-danger:hover {
  background: linear-gradient(135deg, #ff5252 0%, #c82333 100%);
  box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
}

.btn-danger::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.6s;
}

.btn-danger:hover::before {
  left: 100%;
}

/* Special button sizes */
.btn-small {
  min-width: 100px !important;
  min-height: 36px !important;
  font-size: 13px !important;
  padding: 8px 16px !important;
}

.tool-grid-container {
  text-align: center;
  margin-top: 40px;
}

.tool-title {
  font-size: 1.3rem;
  color: #ffd866;
  margin-bottom: 1rem;
}

.tool-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.tool-button {
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  background-color: #ffd866;
  color: #1e1e2f;
  font-weight: bold;
  text-decoration: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
  transition: background 0.2s ease;
  display: inline-block;
}

.tool-button:hover {
  background-color: #ffec99;
}

.tool-button.disabled {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}


/* =================================================================== */
/* 6. MARKER SYSTEM (CONSOLIDATO)                                     */
/* =================================================================== */
.marker {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid white;
  cursor: pointer;
  transition: var(--transition-base);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
  z-index: 10;
}

.marker:hover {
  transform: scale(1.5);
  z-index: 20;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
}

.marker.assigned {
  box-shadow: 0 0 12px rgba(67, 233, 123, 0.8);
  border-width: 3px;
}

.marker.assigned:hover {
  box-shadow: 0 0 15px rgba(67, 233, 123, 1);
}

/* Facility icons */
.facility-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 8px;
  line-height: 1;
  pointer-events: none;
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.8);
  z-index: 11;
  user-select: none;
}

.marker:hover .facility-icon {
  font-size: 10px;
  transform: translate(-50%, -50%) scale(1.2);
}

/* Alliance icons */
.marker img {
  position: absolute;
  left: 50%;
  top: 0;
  width: 20px;
  height: 20px;
  transform: translate(-50%, -100%);
  z-index: 11;
  pointer-events: none;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.9);
  box-shadow: 0 2px 4px rgba(0,0,0,0.3);
  background: white;
}

/* Marker colors (official game colors) */
.marker.castle { 
  background: #FFD700;
  border: 3px solid #FF4500;
  width: 16px;
  height: 16px;
  box-shadow: 0 0 15px rgba(255, 215, 0, 0.8);
}

.marker.castle .facility-icon { font-size: 10px; }
.marker.castle:hover .facility-icon { font-size: 12px; }

.marker.construction { background: #1274e2; border-color: #0d5bb8; }
.marker.production { background: #40df0c; border-color: #2fb309; }
.marker.defense { background: #00a584; border-color: #008066; }
.marker.gathering { background: #c912dd; border-color: #a00eb8; }
.marker.tech { background: #e47c0b; border-color: #b86209; }
.marker.weapons { background: #e4240c; border-color: #b81d0a; }
.marker.training { background: #e5e003; border-color: #b8b803; }
.marker.expedition { background: #f944ca; border-color: #c7369f; }
.marker.stronghold { background: #8B4513; border-color: #A0522D; }
.marker.fortress { background: #2F2F2F; border-color: #000000; }

/* =================================================================== */
/* 7. DROPDOWN SYSTEM (SEMPLIFICATO)                                  */
/* =================================================================== */
.marker-dropdown {
  position: absolute;
  top: 120%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  background: rgba(20, 25, 40, 0.98);
  backdrop-filter: blur(20px);
  border: 2px solid #4facfe;
  border-radius: 12px;
  min-width: 200px;
  max-width: 280px;
  max-height: 400px;
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(79, 172, 254, 0.3);
  animation: dropdownOpen 0.3s ease;
  overflow: hidden;
}

.marker-dropdown.dropdown-above {
  top: auto;
  bottom: 120%;
}

@keyframes dropdownOpen {
  from { opacity: 0; transform: translateX(-50%) scale(0.9); }
  to { opacity: 1; transform: translateX(-50%) scale(1); }
}

.dropdown-header {
  background: linear-gradient(135deg, #4facfe 0%, #667eea 100%);
  padding: 12px 15px;
  font-size: 13px;
  font-weight: 600;
  color: #FFFFFF;
  border-bottom: 1px solid rgba(79, 172, 254, 0.5);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.dropdown-options {
  max-height: 320px;
  overflow-y: auto;
  padding: 8px;
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

.dropdown-option {
  padding: 12px 15px;
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: #FFFFFF;
  margin-bottom: 3px;
  background: rgba(255, 255, 255, 0.02);
}

.dropdown-option:hover {
  background: rgba(79, 172, 254, 0.25);
  border: 1px solid rgba(79, 172, 254, 0.6);
  transform: translateX(3px);
  box-shadow: 0 2px 8px rgba(79, 172, 254, 0.3);
}

.dropdown-option.selected {
  background: linear-gradient(135deg, rgba(67, 233, 123, 0.3), rgba(67, 233, 123, 0.2));
  border: 1px solid rgba(67, 233, 123, 0.6);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(67, 233, 123, 0.3);
}

.dropdown-option.unassign {
  color: #FF6B6B;
  font-style: italic;
  background: rgba(255, 107, 107, 0.1);
}

.dropdown-option.unassign:hover {
  background: rgba(255, 107, 107, 0.25);
  border: 1px solid rgba(255, 107, 107, 0.6);
  box-shadow: 0 2px 8px rgba(255, 107, 107, 0.3);
}

.alliance-icon-small {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  flex-shrink: 0;
  border: 1px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* Scrollbar */
.dropdown-options::-webkit-scrollbar { width: 6px; }
.dropdown-options::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.1); border-radius: 3px; }
.dropdown-options::-webkit-scrollbar-thumb { background: rgba(79, 172, 254, 0.6); border-radius: 3px; }
.dropdown-options::-webkit-scrollbar-thumb:hover { background: rgba(79, 172, 254, 0.8); }

/* =================================================================== */
/* 8. FORM ELEMENTS                                                   */
/* =================================================================== */
.alliance-form {
  margin-bottom: 20px;
}

.alliance-form input {
  width: 100%;
  padding: 12px;
  border: 2px solid var(--glass-border);
  border-radius: 8px;
  background: var(--glass-bg);
  color: var(--text-primary);
  margin-bottom: 12px;
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
}

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

.alliance-form input[type="file"] {
  padding: 8px;
  border-style: dashed;
}

.alliance-form input:hover {
  border-color: rgba(79, 172, 254, 0.7);
  background: rgba(79, 172, 254, 0.1);
}

.alliance-form input:focus {
  outline: none;
  border-color: #4facfe;
  box-shadow: 0 0 0 2px rgba(79, 172, 254, 0.3);
}

/* =================================================================== */
/* 9. LISTS AND CARDS                                                 */
/* =================================================================== */
.alliance-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.alliance-item {
  background: rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 12px;
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition-base);
}

.alliance-item:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.12);
}

.alliance-item img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
}

.alliance-name {
  flex: 1;
  font-weight: 500;
}

.alliance-actions {
  display: flex;
  gap: 5px;
}

.action-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  transition: background-color 0.2s;
}

.edit-btn:hover { background: rgba(255, 193, 7, 0.2); }
.delete-btn:hover { background: rgba(220, 53, 69, 0.2); }

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-md);
  padding: 15px;
  text-align: center;
  border: 1px solid var(--glass-border);
  transition: var(--transition-base);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: #4facfe;
  margin-bottom: 4px;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* =================================================================== */
/* 10. MAP CONTAINER                                                  */
/* =================================================================== */
.map-container {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  padding: 20px;
}

.map-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.map-status {
  background: rgba(79, 172, 254, 0.2);
  border: 1px solid rgba(79, 172, 254, 0.5);
  padding: 10px 15px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 15px;
}

.map-wrapper {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
}

#map {
  width: 100%;
  height: auto;
  display: block;
  cursor: crosshair;
}

/* =================================================================== */
/* 11. CONTROLS                                                       */
/* =================================================================== */
.controls {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  justify-content: center;
}

/* =================================================================== */
/* 12. SUMMARY SECTIONS                                               */
/* =================================================================== */
.summary-section {
  margin-bottom: 20px;
  padding: 20px;
}

.summary-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  cursor: pointer;
  padding: 5px;
  border-radius: 8px;
  transition: background-color 0.2s;
}

.summary-header:hover {
  background: rgba(255, 255, 255, 0.05);
}

.section-toggle {
  font-size: 14px;
  color: var(--text-secondary);
  transition: transform 0.3s ease;
}

.section-toggle.collapsed {
  transform: rotate(-90deg);
}

.summary-content {
  overflow: hidden;
  transition: var(--transition-base);
}

/* =================================================================== */
/* 13. CALIBRATION SECTION                                            */
/* =================================================================== */
.calibration-section {
  background: rgba(255, 193, 7, 0.1);
  border: 1px solid rgba(255, 193, 7, 0.3);
  padding: 20px;
  border-radius: var(--radius-md);
  margin-top: 40px;
}

.calibration-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
}

.calibration-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 18px;
  padding: 5px;
}

.calibration-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  margin-bottom: 15px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.control-group label {
  font-size: 12px;
  font-weight: bold;
  color: var(--text-secondary);
}

.control-group input {
  padding: 8px 12px;
  border: none;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.9);
  color: #333;
  font-size: 14px;
}

.calibration-buttons {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.password-section {
  background: rgba(255, 0, 0, 0.1);
  border: 1px solid rgba(255, 0, 0, 0.3);
  padding: 15px;
  border-radius: var(--radius-md);
  margin-bottom: 15px;
  text-align: center;
}

.password-input {
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  margin: 0 10px;
}

.password-input::placeholder {
  color: var(--text-secondary);
}

/* =================================================================== */
/* 14. LEGEND SYSTEM                                                  */
/* =================================================================== */
.map-legend {
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(10px);
  border-radius: 8px;
  padding: 15px;
  margin-bottom: 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.legend-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 8px;
  margin-top: 10px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  padding: 6px 8px;
  border-radius: 6px;
  transition: var(--transition-base);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid transparent;
}

.legend-item:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateX(2px);
}

.legend-marker {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid white;
  flex-shrink: 0;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.legend-icon {
  font-size: 14px;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.5));
}

.legend-item:hover .legend-marker.castle {
  box-shadow: 0 0 8px rgba(255, 215, 0, 0.6);
}

.legend-item:hover .legend-icon {
  transform: scale(1.1);
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.7));
}

/* Legend marker colors (same as main markers) */
.legend-marker.castle { background: #FFD700; border-color: #FF4500; }
.legend-marker.construction { background: #1274e2; border-color: #0d5bb8; }
.legend-marker.production { background: #40df0c; border-color: #2fb309; }
.legend-marker.defense { background: #00a584; border-color: #008066; }
.legend-marker.gathering { background: #c912dd; border-color: #a00eb8; }
.legend-marker.tech { background: #e47c0b; border-color: #b86209; }
.legend-marker.weapons { background: #e4240c; border-color: #b81d0a; }
.legend-marker.training { background: #e5e003; border-color: #b8b803; }
.legend-marker.expedition { background: #f944ca; border-color: #c7369f; }
.legend-marker.stronghold { background: #8B4513; border-color: #A0522D; }
.legend-marker.fortress { background: #2F2F2F; border-color: #000000; }

/* =================================================================== */
/* 15. RESET MODAL SYSTEM                                             */
/* =================================================================== */
.reset-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  backdrop-filter: blur(10px);
  animation: fadeIn 0.3s ease;
}

.reset-modal-content {
  background: linear-gradient(135deg, rgba(220, 53, 69, 0.1), rgba(255, 107, 107, 0.05));
  backdrop-filter: blur(20px);
  border: 2px solid rgba(220, 53, 69, 0.5);
  border-radius: 16px;
  padding: 30px;
  max-width: 500px;
  width: 90%;
  box-shadow: 0 8px 32px rgba(220, 53, 69, 0.3);
  text-align: center;
}

.reset-warning {
  color: #ff6b6b;
  font-size: 48px;
  margin-bottom: 20px;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.reset-stats {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 15px;
  margin: 20px 0;
  border-left: 4px solid #ff6b6b;
}

.reset-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin-top: 25px;
}

.reset-confirmation-input {
  width: 100%;
  padding: 12px;
  border: 2px solid rgba(220, 53, 69, 0.5);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  text-align: center;
  font-size: 16px;
  margin: 15px 0;
}

.reset-confirmation-input::placeholder {
  color: rgba(255, 107, 107, 0.7);
}

.undo-notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: linear-gradient(135deg, #ff6b6b, #dc3545);
  color: white;
  padding: 15px 20px;
  border-radius: 12px;
  border: 1px solid rgba(220, 53, 69, 0.5);
  box-shadow: 0 8px 32px rgba(220, 53, 69, 0.4);
  z-index: 10001;
  display: flex;
  align-items: center;
  gap: 15px;
  min-width: 300px;
  animation: slideInRight 0.5s ease;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.undo-countdown {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 14px;
}

/* =================================================================== */
/* 16. UTILITY CLASSES                                                */
/* =================================================================== */
.hidden { display: none; }
.collapsed-content { max-height: 0; overflow: hidden; }
.expanded-content { max-height: 2000px; }

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid rgba(255,255,255,0.1);
  border-left: 4px solid #4facfe;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 20px auto;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =================================================================== */
/* 17. RESPONSIVE DESIGN                                              */
/* =================================================================== */
@media (max-width: 1024px) {
  .app-layout { grid-template-columns: 1fr; }
  .calibration-controls { grid-template-columns: repeat(2, 1fr); }
  .legend-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
  .facility-icon { font-size: 9px; }
  .marker:hover .facility-icon { font-size: 11px; }
  .marker.castle .facility-icon { font-size: 11px; }
}

@media (max-width: 768px) {
  .container { padding: 10px; }
  .header h1 { font-size: 2.2rem; margin-bottom: 8px; }
  .header p { font-size: 1rem; }
  .calibration-controls { grid-template-columns: 1fr; }
  .calibration-buttons { flex-direction: column; }
  .controls { flex-direction: column; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .reset-buttons { flex-direction: column; gap: 10px; }
  .reset-modal-content { padding: 20px; margin: 10px; }
  .reset-warning { font-size: 36px; margin-bottom: 15px; }
  .reset-stats { padding: 12px; }
  .undo-notification { bottom: 10px; right: 10px; left: 10px; min-width: auto; padding: 12px 15px; }
  .undo-countdown { width: 25px; height: 25px; font-size: 12px; }
  .marker-dropdown { min-width: 180px; max-width: 250px; max-height: 350px; }
  .dropdown-options { max-height: 280px; }
  .legend-grid { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 6px; }
  .legend-item { padding: 8px; gap: 8px; }
  .legend-marker { width: 15px; height: 15px; }
  .legend-icon { font-size: 14px; width: 20px; }
  .facility-icon { font-size: 10px; text-shadow: 0 0 3px rgba(0, 0, 0, 0.9); }
  .marker:hover .facility-icon { font-size: 12px; }
  .marker.castle .facility-icon { font-size: 12px; }
  .marker.castle:hover .facility-icon { font-size: 14px; }
}

@media (max-width: 480px) {
  .header h1 { font-size: 1.8rem; }
  .reset-modal-content { padding: 15px; max-width: 95%; }
  .reset-modal-content h2 { font-size: 20px; }
  .reset-warning { font-size: 32px; }
  .reset-confirmation-input { font-size: 14px; padding: 10px; }
  .undo-notification { flex-direction: column; text-align: center; gap: 10px; }
  .marker-dropdown { min-width: 160px; max-width: 220px; max-height: 300px; }
  .dropdown-options { max-height: 230px; }
  .legend-grid { grid-template-columns: 1fr 1fr; gap: 4px; }
  .legend-item { font-size: 11px; padding: 6px; gap: 6px; }
  .legend-marker { width: 13px; height: 13px; border-width: 1.5px; }
  .legend-icon { font-size: 12px; width: 16px; }
}

@media (max-width: 360px) {
  .legend-grid { grid-template-columns: 1fr; }
  .legend-item { justify-content: flex-start; }
}

/* Touch device optimizations */
@media (pointer: coarse) {
  .marker { min-width: 16px; min-height: 16px; }
  .facility-icon { font-size: 11px; }
  .marker.castle .facility-icon { font-size: 13px; }
  .dropdown-option { min-height: 44px; padding: 12px 16px; }
  .dropdown-option:active { background: rgba(79, 172, 254, 0.4); transform: scale(0.98); }
  .dropdown-options::-webkit-scrollbar { width: 12px; }
  .dropdown-options::-webkit-scrollbar-thumb { background: rgba(79, 172, 254, 0.8); border-radius: 6px; min-height: 40px; }
  .dropdown-options::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.1); border-radius: 6px; }
  .btn-danger { min-height: 44px; touch-action: manipulation; }
  .reset-modal-content button { min-height: 44px; padding: 12px 20px; }
  .reset-confirmation-input { min-height: 44px; font-size: 16px; }
  .legend-item { padding: 10px 8px; min-height: 40px; align-items: center; }
  .legend-item:hover { background: rgba(255, 255, 255, 0.12); }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
  .reset-modal { background: rgba(0, 0, 0, 0.95); }
  .reset-modal-content { background: linear-gradient(135deg, rgba(220, 53, 69, 0.15), rgba(255, 107, 107, 0.08)); border-color: rgba(220, 53, 69, 0.6); }
  .marker-dropdown { background: rgba(10, 15, 25, 0.98); border-color: #4facfe; }
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print styles */
@media print {
  .btn, .controls, .sidebar, .calibration-section, .marker-dropdown, .reset-modal, .undo-notification {
    display: none !important;
  }
  
  .map-container {
    page-break-inside: avoid;
  }
}

/* ======================================================= */
/* 18. FOOTER                                              */
/* ======================================================= */

.footer-select {
  padding: 8px 12px;
  font-size: 14px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: #ffffff;
  color: #1e3c72;
  min-width: 240px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  appearance: auto;
}

.footer-select option {
  color: #1e3c72;
  background-color: #ffffff;
}


/* =================================================================== */
/* 2b. MAIN NAVIGATION BAR                                             */
/* =================================================================== */
.main-nav {
  margin: 16px 0 24px 0;
  background: rgba(15, 23, 42, 0.9);
  border-radius: 999px;
  padding: 8px 18px;
  box-shadow: 0 12px 25px rgba(0, 0, 0, 0.35);
}

.main-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-logo {
  font-weight: 600;
  letter-spacing: 0.03em;
  color: #ffffff;
  text-decoration: none;
  font-size: 0.95rem;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: rgba(226, 232, 240, 0.9);
  font-size: 0.9rem;
  text-decoration: none;
  padding: 4px 10px;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease, transform 0.15s ease;
}

.nav-links a:hover {
  background: rgba(59, 130, 246, 0.25);
  color: #ffffff;
  transform: translateY(-1px);
}

@media (max-width: 768px) {
  .main-nav-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    width: 100%;
    justify-content: flex-start;
  }
}

/* =================================================================== */
/* 19. SEO HOMEPAGE SECTION                                            */
/* =================================================================== */
.seo-description {
  max-width: 900px;
  margin: 0 auto 30px auto;
  padding: var(--spacing-md);
  text-align: left;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-glass);
  backdrop-filter: blur(20px);
  color: var(--text-secondary);
  line-height: 1.6;
}

.seo-description h2 {
  color: var(--text-primary);
  font-size: 1.8rem;
  margin-bottom: 12px;
  text-align: center;
}

.seo-description p {
  margin-bottom: 12px;
}

.seo-description ul {
  margin: 12px 0 12px 20px;
  padding-left: 20px;
}

.seo-description li {
  margin-bottom: 8px;
  list-style-type: disc;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .seo-description {
    padding: 12px;
  }

  .seo-description h2 {
    font-size: 1.4rem;
  }
}


/* SEO home intro section */
.seo-home-intro {
  margin: 24px 0 32px;
  padding: 18px 22px;
  text-align: left;
}


.seo-home-intro h2 {
  font-size: 1.4rem;
  margin-bottom: 10px;
}

.seo-home-intro p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--text-secondary);
}