/* Project Map Explorer Styles */

/* ================================================
   CSS CUSTOM PROPERTIES (CSS Variables)
   ================================================ */
:root {
  /* Color System */
  --pme-primary: var(--e-global-color-primary, #4054b2);
  --pme-primary-hover: var(--e-global-color-primary-hover, #2d3a87);
  --pme-accent: var(--e-global-color-accent, #61ce70);
  --pme-secondary: var(--e-global-color-secondary, #54595f);
  
  /* Background Colors */
  --pme-bg-primary: var(--e-global-color-background, #ffffff);
  --pme-bg-secondary: var(--e-global-color-background-secondary, #f8f9fa);
  --pme-bg-tertiary: #fafbfc;
  --pme-bg-hover: var(--e-global-color-background-hover, #f5f5f5);
  
  /* Text Colors */
  --pme-text-primary: var(--e-global-color-text, #333333);
  --pme-text-secondary: var(--e-global-color-text-secondary, #666666);
  --pme-text-muted: #999999;
  --pme-text-inverse: #ffffff;
  
  /* Border & Shadow */
  --pme-border: var(--e-global-color-border, #e1e5e9);
  --pme-border-light: #f0f0f0;
  --pme-border-dark: #d1d5d9;
  --pme-shadow: rgba(0, 0, 0, 0.08);
  --pme-shadow-hover: rgba(0, 0, 0, 0.15);
  --pme-shadow-focus: rgba(64, 84, 178, 0.25);
  
  /* Spacing System (8px base) */
  --pme-space-xs: 4px;
  --pme-space-sm: 8px;
  --pme-space-md: 16px;
  --pme-space-lg: 24px;
  --pme-space-xl: 32px;
  --pme-space-2xl: 48px;
  --pme-space-3xl: 64px;
  
  /* Typography */
  --pme-font-family: var(--e-global-typography-primary-font-family, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif);
  --pme-font-size-xs: 12px;
  --pme-font-size-sm: 14px;
  --pme-font-size-md: 16px;
  --pme-font-size-lg: 18px;
  --pme-font-size-xl: 20px;
  --pme-font-size-2xl: 24px;
  --pme-line-height-tight: 1.2;
  --pme-line-height-base: 1.5;
  --pme-line-height-relaxed: 1.6;
  
  /* Breakpoints */
  --pme-breakpoint-sm: 480px;
  --pme-breakpoint-md: 768px;
  --pme-breakpoint-lg: 1024px;
  --pme-breakpoint-xl: 1200px;
  
  /* Border Radius */
  --pme-radius-sm: 4px;
  --pme-radius-md: 8px;
  --pme-radius-lg: 12px;
  --pme-radius-xl: 16px;
  --pme-radius-full: 50%;
  
  /* Transitions */
  --pme-transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --pme-transition-base: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --pme-transition-slow: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --pme-transition-spring: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  
  /* Z-Index Scale */
  --pme-z-base: 1;
  --pme-z-dropdown: 100;
  --pme-z-sticky: 200;
  --pme-z-fixed: 300;
  --pme-z-modal-backdrop: 400;
  --pme-z-modal: 500;
  --pme-z-popover: 600;
  --pme-z-tooltip: 700;
  --pme-z-toast: 800;
  --pme-z-max: 999;
  
  /* Component Specific */
  --pme-map-height: 50vh;
  --pme-map-height-mobile: 40vh;
  --pme-filter-panel-width: 320px;
  --pme-card-aspect-ratio: 16/9;
  --pme-touch-target-min: 44px;
  --pme-touch-target-mobile: 48px;
  
  /* Safe Area Insets for mobile devices */
  --pme-safe-top: env(safe-area-inset-top, 0px);
  --pme-safe-bottom: env(safe-area-inset-bottom, 0px);
  --pme-safe-left: env(safe-area-inset-left, 0px);
  --pme-safe-right: env(safe-area-inset-right, 0px);
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --pme-bg-primary: #1a1a1a;
    --pme-bg-secondary: #2d2d2d;
    --pme-bg-tertiary: #3a3a3a;
    --pme-bg-hover: #404040;
    --pme-text-primary: #ffffff;
    --pme-text-secondary: #cccccc;
    --pme-text-muted: #999999;
    --pme-border: #404040;
    --pme-border-light: #333333;
    --pme-border-dark: #555555;
    --pme-shadow: rgba(0, 0, 0, 0.3);
    --pme-shadow-hover: rgba(0, 0, 0, 0.5);
  }
}

/* ================================================
   BASE LAYOUT SYSTEM
   ================================================ */
.project-map-explorer {
    position: relative;
    width: 100%;
    min-height: 100vh;
    background: var(--pme-bg-primary);
    font-family: var(--pme-font-family);
    display: flex;
    flex-direction: column;
    color: var(--pme-text-primary);
    container-type: inline-size;
    overflow-x: hidden; /* Prevent horizontal scrolling */
}

/* ================================================
   MAIN LAYOUT COMPONENTS
   ================================================ */

/* Horizontal Filter Bar */
.pme-filter-bar {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--pme-z-fixed);
    background: var(--pme-bg-primary);
    border-bottom: 1px solid var(--pme-border);
    box-shadow: 0 2px 8px var(--pme-shadow);
    backdrop-filter: blur(8px);
}

.pme-filter-bar-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--pme-space-lg);
}

.pme-filter-bar-content {
    padding: var(--pme-space-md) 0;
}

.pme-filter-bar-form {
    display: flex;
    flex-direction: column;
    gap: var(--pme-space-sm);
}

.pme-filter-bar-main {
    display: flex;
    align-items: end;
    gap: var(--pme-space-lg);
    flex-wrap: wrap;
}

.pme-filter-bar-group {
    display: flex;
    flex-direction: column;
    gap: var(--pme-space-xs);
    min-width: 0;
}

.pme-filter-search-group {
    flex: 1;
    min-width: 200px;
    max-width: 300px;
}

.pme-filter-bar-label {
    font-size: var(--pme-font-size-sm);
    font-weight: 500;
    color: var(--pme-text-secondary);
    white-space: nowrap;
}

.pme-filter-bar-input,
.pme-filter-bar-select {
    height: 40px;
    padding: 0 var(--pme-space-md);
    border: 1px solid var(--pme-border);
    border-radius: var(--pme-radius-sm);
    background: var(--pme-bg-primary);
    color: var(--pme-text-primary);
    font-size: var(--pme-font-size-base);
    transition: all var(--pme-transition-base);
    min-width: 0;
}

.pme-filter-bar-input:focus,
.pme-filter-bar-select:focus {
    outline: none;
    border-color: var(--pme-primary);
    box-shadow: 0 0 0 2px rgba(64, 84, 178, 0.1);
}

.pme-filter-bar-select {
    min-width: 120px;
    cursor: pointer;
}

.pme-filter-bar-actions {
    display: flex;
    gap: var(--pme-space-sm);
    align-items: end;
}

.pme-filter-bar-btn {
    height: 40px;
    padding: 0 var(--pme-space-lg);
    white-space: nowrap;
    font-size: var(--pme-font-size-sm);
}

.pme-filter-bar-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--pme-space-md);
    padding-top: var(--pme-space-sm);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    margin-top: var(--pme-space-sm);
}

.pme-filter-status-text {
    font-size: var(--pme-font-size-sm);
    color: var(--pme-text-secondary);
}

.pme-filter-clear-btn {
    background: none;
    border: none;
    color: var(--pme-primary);
    font-size: var(--pme-font-size-sm);
    cursor: pointer;
    padding: var(--pme-space-xs) var(--pme-space-sm);
    border-radius: var(--pme-radius-sm);
    transition: background-color var(--pme-transition-base);
}

.pme-filter-clear-btn:hover {
    background: var(--pme-bg-hover);
}

/* Responsive behavior for filter bar */
@media (max-width: 1023px) {
    .pme-filter-bar {
        display: none; /* Hide on tablet/mobile - use mobile filter section instead */
    }
}

@media (min-width: 1024px) {
    .pme-filter-bar {
        display: block;
    }
    
    /* Hide mobile filter section on desktop */
    .pme-mobile-filter-section {
        display: none;
    }
}

/* Compact filter bar for smaller desktop screens */
@media (min-width: 1024px) and (max-width: 1280px) {
    .pme-filter-bar-main {
        gap: var(--pme-space-md);
    }
    
    .pme-filter-search-group {
        max-width: 250px;
    }
    
    .pme-filter-bar-select {
        min-width: 100px;
    }
    
    .pme-filter-bar-btn {
        padding: 0 var(--pme-space-md);
    }
}

/* Map Container - Fixed at top */
.pme-map-container {
    position: relative;
    width: 100%;
    height: var(--pme-map-height);
    background: var(--pme-bg-secondary);
    z-index: var(--pme-z-base);
    border-bottom: 1px solid var(--pme-border);
    order: 1;
}

/* Projects Section - Below map */
.pme-projects-section {
    position: relative;
    z-index: var(--pme-z-base);
    padding: var(--pme-space-2xl) 0;
    background: var(--pme-bg-primary);
    width: 100%;
    min-height: 50vh;
    box-shadow: 0 -4px 20px var(--pme-shadow);
    container-type: inline-size;
    order: 2;
}

/* Container for content */
.pme-container {
    max-width: var(--pme-breakpoint-xl);
    margin: 0 auto;
    padding: 0 var(--pme-space-lg);
}

/* Projects Grid */
.pme-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--pme-space-xl);
}

/* ================================================
   MAP COMPONENT STYLES
   ================================================ */

#pme-map {
    width: 100%;
    height: 100%;
    position: relative;
    background-color: var(--pme-bg-secondary) !important;
}

/* Leaflet Map Base Styles */
.leaflet-tile-pane {
    opacity: 1 !important;
}

.leaflet-container {
    background: var(--pme-bg-secondary) !important;
    border-radius: 0 !important;
    box-shadow: none !important;
}

/* Zoom Controls */
.leaflet-control-zoom {
    border: none !important;
    box-shadow: 0 4px 12px var(--pme-shadow-hover) !important;
    border-radius: var(--pme-radius-md) !important;
    overflow: hidden;
}

.leaflet-control-zoom a {
    background-color: var(--pme-bg-primary) !important;
    color: var(--pme-text-primary) !important;
    border: none !important;
    width: var(--pme-touch-target-min) !important;
    height: var(--pme-touch-target-min) !important;
    line-height: var(--pme-touch-target-min) !important;
    font-size: var(--pme-font-size-lg) !important;
    font-weight: 600 !important;
    touch-action: manipulation;
    transition: all var(--pme-transition-base) !important;
    position: relative;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-decoration: none !important;
}

.leaflet-control-zoom a:hover {
    background-color: var(--pme-primary) !important;
    color: var(--pme-text-inverse) !important;
    transform: scale(1.05);
}

.leaflet-control-zoom a:active {
    transform: scale(0.95);
    transition: transform var(--pme-transition-fast) !important;
}

.leaflet-control-zoom a:focus {
    outline: 2px solid var(--pme-accent) !important;
    outline-offset: 2px !important;
}

/* Mobile Touch Targets */
@media (max-width: 768px) {
    .leaflet-control-zoom a {
        width: var(--pme-touch-target-mobile) !important;
        height: var(--pme-touch-target-mobile) !important;
        line-height: var(--pme-touch-target-mobile) !important;
        font-size: var(--pme-font-size-xl) !important;
    }
    
    .leaflet-control-zoom a:active {
        background: var(--pme-bg-hover) !important;
        transform: scale(0.95);
    }
}

/* Map Markers */
.leaflet-marker-icon {
    filter: drop-shadow(0 0 2px rgba(0,0,0,0.15));
    border-radius: var(--pme-radius-sm);
    background-color: var(--pme-primary);
    border: 2px solid var(--pme-accent);
    box-shadow: none;
}

/* Custom Flat Marker Styles */
.custom-flat-marker {
    width: 24px !important;
    height: 24px !important;
    margin-left: -12px !important;
    margin-top: -12px !important;
    border: none !important;
    background: none !important;
    filter: drop-shadow(0 2px 4px var(--pme-shadow));
    pointer-events: auto;
}

.custom-flat-marker svg {
    width: 24px !important;
    height: 24px !important;
    min-width: 24px !important;
    min-height: 24px !important;
    max-width: 24px !important;
    max-height: 24px !important;
}

/* ================================================
   FILTER PANEL SYSTEM
   ================================================ */

/* Legacy filter panel styles removed - now using horizontal filter bar */

/* Mobile Filter Section */
.pme-mobile-filter-section {
    display: none; /* Hidden on desktop/tablet */
    background: var(--pme-bg-primary);
    border-bottom: 1px solid var(--pme-border);
    box-shadow: 0 2px 8px var(--pme-shadow);
    z-index: var(--pme-z-dropdown);
}

/* Ensure no dark background overlay for mobile filters */
.pme-mobile-filter-section.expanded {
    background: var(--pme-bg-primary) !important;
}

.pme-mobile-filter-section.expanded::before {
    display: none !important;
}

.pme-mobile-filter-toggle {
    width: 100%;
    padding: var(--pme-space-md) var(--pme-space-lg);
    background: var(--pme-bg-primary);
    border: none;
    border-bottom: 1px solid var(--pme-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--pme-space-sm);
    font-size: var(--pme-font-size-md);
    font-weight: 600;
    color: var(--pme-primary);
    transition: all var(--pme-transition-slow);
    min-height: 56px;
    touch-action: manipulation;
}

.pme-mobile-filter-toggle:hover {
    background: var(--pme-bg-hover);
}

.pme-mobile-filter-toggle:active {
    transform: scale(0.98);
}

.pme-mobile-filter-toggle .pme-filter-toggle-icon {
    width: 18px;
    height: 2px;
    background: currentColor;
    position: relative;
    transition: all var(--pme-transition-slow);
}

.pme-mobile-filter-toggle .pme-filter-toggle-icon::before,
.pme-mobile-filter-toggle .pme-filter-toggle-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
    transition: transform var(--pme-transition-slow);
}

.pme-mobile-filter-toggle .pme-filter-toggle-icon::before {
    top: -5px;
}

.pme-mobile-filter-toggle .pme-filter-toggle-icon::after {
    bottom: -5px;
}

/* Animate toggle icon when filters are open */
.pme-mobile-filter-section.expanded .pme-mobile-filter-toggle .pme-filter-toggle-icon {
    background: transparent;
}

.pme-mobile-filter-section.expanded .pme-mobile-filter-toggle .pme-filter-toggle-icon::before {
    transform: translateY(5px) rotate(45deg);
}

.pme-mobile-filter-section.expanded .pme-mobile-filter-toggle .pme-filter-toggle-icon::after {
    transform: translateY(-5px) rotate(-45deg);
}

.pme-mobile-filter-content {
    padding: var(--pme-space-lg);
    background: var(--pme-bg-primary);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--pme-transition-slow), padding var(--pme-transition-slow);
}

.pme-mobile-filter-section.expanded .pme-mobile-filter-content {
    max-height: 500px;
    transition: max-height var(--pme-transition-slow);
}

/* ================================================
   FILTER FORM COMPONENTS
   ================================================ */

.pme-filter-form {
    display: flex;
    flex-direction: column;
    gap: var(--pme-space-lg);
}

.pme-filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--pme-space-sm);
}

.pme-filter-group label {
    font-size: var(--pme-font-size-xs);
    font-weight: 500;
    color: var(--pme-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pme-filter-group select,
.pme-filter-group input[type="text"] {
    width: 100%;
    padding: var(--pme-space-md);
    border: 1px solid var(--pme-border);
    border-radius: var(--pme-radius-sm);
    font-size: var(--pme-font-size-sm);
    color: var(--pme-text-primary);
    background: var(--pme-bg-primary);
    transition: all var(--pme-transition-slow);
    -webkit-appearance: none;
    appearance: none;
}

.pme-filter-group select {
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h10L5 6z' fill='%23666'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--pme-space-md) center;
    padding-right: var(--pme-space-2xl);
}

.pme-filter-group select:focus,
.pme-filter-group input[type="text"]:focus {
    border-color: var(--pme-primary);
    outline: none;
    box-shadow: 0 0 0 3px var(--pme-shadow-focus);
}

.pme-filter-actions {
    display: flex;
    gap: var(--pme-space-md);
    margin-top: var(--pme-space-sm);
}

/* ================================================
   BUTTON COMPONENTS
   ================================================ */

.pme-btn {
    padding: var(--pme-space-md);
    border: none;
    border-radius: var(--pme-radius-sm);
    font-size: var(--pme-font-size-xs);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all var(--pme-transition-slow);
    flex: 1;
    min-height: var(--pme-touch-target-min);
    display: flex;
    align-items: center;
    justify-content: center;
}

.pme-btn-primary {
    background: var(--pme-primary);
    color: var(--pme-text-inverse);
}

.pme-btn-primary:hover {
    background: var(--pme-primary-hover);
}

.pme-btn-secondary {
    background: var(--pme-bg-secondary);
    color: var(--pme-text-primary);
    border: 1px solid var(--pme-border);
}

.pme-btn-secondary:hover {
    background: var(--pme-bg-hover);
}

/* ================================================
   PROJECT CARD COMPONENTS
   ================================================ */

.pme-project-card {
    background: var(--pme-bg-primary);
    border: 1px solid var(--pme-border);
    border-radius: var(--pme-radius-md);
    overflow: hidden;
    transition: transform var(--pme-transition-base), box-shadow var(--pme-transition-base);
    box-shadow: 0 2px 8px var(--pme-shadow);
    display: flex;
    flex-direction: column;
    min-height: max(320px, var(--pme-touch-target-min));
    container-type: inline-size;
    cursor: pointer;
    touch-action: manipulation;
    position: relative;
}

.pme-project-card:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 8px 24px var(--pme-shadow-hover);
}

.pme-project-card:active {
    transform: translateY(-2px) scale(0.98);
    transition: transform var(--pme-transition-fast);
}

/* Enhanced card interaction overlay */
.pme-project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: transparent;
    border-radius: var(--pme-radius-md);
    transition: background-color var(--pme-transition-base);
    pointer-events: none;
    z-index: var(--pme-z-base);
}

.pme-project-card:hover::before {
    background: rgba(64, 84, 178, 0.05);
}

.pme-project-card:active::before {
    background: rgba(64, 84, 178, 0.1);
}

.pme-project-card-image {
    position: relative;
    width: 100%;
    aspect-ratio: var(--pme-card-aspect-ratio);
    background: var(--pme-bg-tertiary);
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pme-project-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--pme-radius-sm) var(--pme-radius-sm) 0 0;
    display: block;
    max-height: 100%;
    position: relative;
    z-index: var(--pme-z-base);
    pointer-events: none;
}

.pme-project-card-content {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--pme-space-md) var(--pme-space-md) var(--pme-space-sm) var(--pme-space-md);
    min-height: 120px;
}

.pme-project-card-title {
    font-size: clamp(var(--pme-font-size-sm), 3.5vw, var(--pme-font-size-lg));
    font-weight: 600;
    color: var(--pme-text-primary);
    margin: 0 0 var(--pme-space-sm) 0;
    line-height: var(--pme-line-height-tight);
    min-height: clamp(36px, 8vw, var(--pme-touch-target-min));
    display: flex;
    align-items: flex-end;
    position: relative;
    z-index: var(--pme-z-base);
}

.pme-project-card-meta {
    display: flex;
    gap: clamp(var(--pme-space-sm), 2vw, var(--pme-space-md));
    font-size: clamp(10px, 2.5vw, var(--pme-font-size-xs));
    font-weight: 500;
    color: var(--pme-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--pme-space-sm);
    position: relative;
    z-index: var(--pme-z-base);
}

.pme-project-card-excerpt {
    font-size: clamp(var(--pme-font-size-xs), 3vw, var(--pme-font-size-sm));
    color: var(--pme-text-primary);
    line-height: var(--pme-line-height-base);
    margin-bottom: var(--pme-space-sm);
    flex: 1 1 auto;
    min-height: 32px;
    display: flex;
    align-items: flex-start;
    position: relative;
    z-index: var(--pme-z-base);
}

/* CSS Container Queries for responsive project cards */
@container (max-width: 300px) {
    .pme-project-card-title {
        font-size: var(--pme-font-size-sm);
        min-height: 36px;
    }
    
    .pme-project-card-meta {
        font-size: 10px;
        gap: var(--pme-space-sm);
    }
    
    .pme-project-card-excerpt {
        font-size: var(--pme-font-size-xs);
    }
    
    .pme-project-card-content {
        padding: var(--pme-space-sm);
    }
}

@container (min-width: 400px) {
    .pme-project-card-title {
        font-size: var(--pme-font-size-lg);
        min-height: var(--pme-touch-target-min);
    }
    
    .pme-project-card-meta {
        font-size: 12px;
    }
    
    .pme-project-card-excerpt {
        font-size: 14px;
    }
    
    .pme-project-card-content {
        padding: 20px;
    }
}

.pme-project-card-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: clamp(11px, 2.8vw, 13px);
    font-weight: 600;
    color: var(--e-global-color-primary, #4054b2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    padding: 8px 12px;
    border: 1px solid var(--e-global-color-primary, #4054b2);
    border-radius: 4px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    margin-top: 8px;
    min-height: 32px;
    min-width: 80px;
    touch-action: manipulation;
    position: relative;
    z-index: 3;
}

.pme-project-card-link:hover {
    background: var(--e-global-color-primary, #4054b2);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(64, 84, 178, 0.3);
}

.pme-project-card-link:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(64, 84, 178, 0.2);
}

/* Map Popup */
.pme-map-popup {
    padding: 0;
    min-width: 200px;
    max-width: 300px;
}

.pme-map-popup-title {
    padding-top: 0;
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 500;
    color: var(--pme-text-primary);
    line-height: 1.3;
}

.pme-map-popup-location {
    font-size: 12px;
    font-weight: 500;
    color: var(--pme-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.pme-map-popup-excerpt {
    margin: 0 0 10px 0;
    font-size: 14px;
    color: var(--pme-text-primary);
    line-height: 1.4;
}

.pme-map-popup-link {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    color: var(--e-global-color-primary, #4054b2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-decoration: none;
    padding-bottom: 2px;
    border-bottom: 1px solid currentColor;
    transition: all 0.3s;
}

.pme-map-popup-link:hover {
    color: var(--e-global-color-primary-hover, #2d3a87);
}

/* Enhanced Loading Animation and States */
@keyframes pme-spin {
    to { transform: rotate(360deg); }
}

@keyframes pme-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes pme-skeleton {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

.pme-loading {
    text-align: center;
    padding: 40px;
}

.pme-loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: var(--e-global-color-primary, #4054b2);
    animation: pme-spin 0.8s linear infinite;
    margin-bottom: 16px;
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .pme-loading-spinner {
        animation: pme-pulse 2s ease-in-out infinite;
    }
}

.pme-loading p {
    margin: 0;
    color: var(--pme-text-primary);
    font-size: 14px;
}

/* Skeleton loading for project cards */
.pme-project-card.skeleton {
    pointer-events: none;
}

.pme-project-card.skeleton .pme-project-card-image,
.pme-project-card.skeleton .pme-project-card-title,
.pme-project-card.skeleton .pme-project-card-excerpt {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: pme-skeleton 1.5s infinite;
    color: transparent;
}

.pme-project-card.skeleton .pme-project-card-image {
    background-color: #f0f0f0;
}

/* Enhanced micro-interactions */
.pme-project-card:hover .pme-project-card-image img {
    transform: scale(1.05);
    transition: transform 0.3s ease;
}

.pme-project-card-image {
    overflow: hidden;
}

.pme-project-card-image img {
    transition: transform 0.3s ease;
}

/* Touch feedback for interactive elements */
.pme-btn:active,
.pme-filter-toggle:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}

/* Focus styles for accessibility */
.pme-filter-toggle:focus,
.pme-btn:focus,
.pme-project-card-link:focus {
    outline: 2px solid var(--e-global-color-primary, #4054b2);
    outline-offset: 2px;
}

/* Enhanced animations and micro-interactions */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInFromBottom {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-5px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(5px);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.pme-project-card.fade-in {
    animation: fadeIn 0.5s ease-out forwards;
    opacity: 0;
}

/* Enhanced loading states with better animations */
.pme-loading {
    animation: slideInFromBottom 0.3s ease-out;
}

.pme-filter-panel[data-mode="mobile"]:not(.minimized) {
    animation: slideInFromBottom 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.pme-filter-panel[data-mode="tablet"]:not(.minimized) {
    animation: slideInFromRight 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Enhanced button interactions */
.pme-btn:hover {
    animation: pulse 0.3s ease-in-out;
}

.pme-filter-toggle:hover .pme-filter-toggle-icon {
    animation: bounce 0.6s ease-in-out;
}

/* Error state animations */
.pme-error {
    animation: shake 0.5s ease-in-out;
}

/* Map interaction feedback */
.leaflet-control-zoom a:active {
    animation: pulse 0.2s ease-in-out;
}

/* Enhanced project card hover states */
.pme-project-card:hover .pme-project-card-title {
    color: var(--e-global-color-primary, #4054b2);
    transition: color 0.2s ease;
}

.pme-project-card:hover .pme-project-card-link {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(64, 84, 178, 0.3);
}

/* Enhanced skeleton shimmer effect */
.pme-project-card.skeleton .pme-project-card-image,
.pme-project-card.skeleton .pme-project-card-title,
.pme-project-card.skeleton .pme-project-card-excerpt {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}

/* Offline/Online state styling */
.pme-offline-message {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    padding: 12px 16px;
    text-align: center;
    z-index: 10001;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transform: translateY(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pme-offline-message.show {
    transform: translateY(0);
}

.pme-offline-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    max-width: 600px;
    margin: 0 auto;
}

.pme-offline-icon {
    font-size: 20px;
}

.pme-offline-text {
    font-size: 14px;
    font-weight: 500;
}

/* Paused animations for performance when tab is hidden */
.pme-paused-animations *,
.pme-paused-animations *::before,
.pme-paused-animations *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
}

/* Enhanced image loading states */
.pme-project-card-image img {
    transition: opacity 0.3s ease;
}

/* Remove loading blur/opacity effect entirely */

.pme-project-card-image img.error {
    opacity: 0.8;
    filter: grayscale(100%);
}

/* Core Web Vitals optimizations */
.pme-project-card-image {
    contain: layout style paint;
    will-change: transform;
}

.pme-project-card:hover .pme-project-card-image {
    contain: layout style paint;
}

/* Intersection Observer lazy loading support */
.pme-project-card[data-lazy="true"] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.pme-project-card[data-lazy="true"].in-view {
    opacity: 1;
    transform: translateY(0);
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .pme-project-card.fade-in {
        animation: none;
        opacity: 1;
        transform: none;
    }
    
    .pme-loading,
    .pme-filter-panel[data-mode="mobile"]:not(.minimized),
    .pme-filter-panel[data-mode="tablet"]:not(.minimized),
    .pme-btn:hover,
    .pme-filter-toggle:hover .pme-filter-toggle-icon,
    .pme-error,
    .leaflet-control-zoom a:active,
    .pme-offline-message {
        animation: none !important;
        transition: none !important;
    }
    
    .pme-project-card.skeleton .pme-project-card-image,
    .pme-project-card.skeleton .pme-project-card-title,
    .pme-project-card.skeleton .pme-project-card-excerpt {
        animation: none;
        background: #f0f0f0;
    }
    
    .pme-project-card[data-lazy="true"] {
        opacity: 1;
        transform: none;
        transition: none;
    }
    
    .pme-project-card-image img {
        transition: none;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .pme-filter-panel,
    .pme-project-card {
        border: 2px solid;
    }
    
    .pme-btn-primary {
        background: ButtonText;
        color: ButtonFace;
    }
}

/* Enhanced Responsive Design with Mobile-First Approach */

/* Safe area support for devices with notches */
:root {
    --safe-area-inset-top: env(safe-area-inset-top, 0px);
    --safe-area-inset-right: env(safe-area-inset-right, 0px);
    --safe-area-inset-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-inset-left: env(safe-area-inset-left, 0px);
    
    /* Light mode color variables (default) */
    --pme-bg-primary: var(--e-global-color-background, #fff);
    --pme-bg-secondary: #f5f7fa;
    --pme-text-primary: var(--e-global-color-text, #333);
    --pme-text-secondary: var(--e-global-color-text-secondary, #666);
    --pme-border: var(--e-global-color-border, #e0e0e0);
    --pme-shadow: rgba(0, 0, 0, 0.1);
    --pme-overlay: rgba(0, 0, 0, 0.4);
}


/* Enhanced touch targets and accessibility */
.pme-filter-toggle,
.pme-btn {
    min-height: 44px;
    min-width: 44px;
    touch-action: manipulation;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.pme-filter-toggle:active,
.pme-btn:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}

/* Dynamic zoom control positioning based on filter panel state */
.leaflet-control-zoom {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

/* Adjust zoom controls when filter panel is open on different modes */
.pme-filter-panel[data-mode="desktop"]:not(.minimized) ~ .pme-map-container .leaflet-control-zoom {
    right: 340px !important;
}

.pme-filter-panel[data-mode="tablet"]:not(.minimized) ~ .pme-map-container .leaflet-control-zoom {
    right: 20px !important;
    top: 90px !important;
}

.pme-filter-panel[data-mode="mobile"]:not(.minimized) ~ .pme-map-container .leaflet-control-zoom {
    right: 20px !important;
    top: calc(var(--safe-area-inset-top) + 20px) !important;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .pme-filter-panel,
    .pme-filter-content,
    .pme-project-card,
    .pme-loading-spinner {
        transition: none !important;
        animation: none !important;
    }
}

/* Desktop responsive design (>1024px) */
@media (min-width: 1024px) {
    .pme-filter-panel[data-mode="desktop"] {
        /* Enhanced desktop filter panel */
        backdrop-filter: none;
        box-shadow: 0 8px 32px var(--pme-shadow);
        border: 1px solid var(--pme-border);
    }
    
    .pme-filter-panel[data-mode="desktop"].minimized {
        transform: translateX(calc(100% - 48px));
    }
    
    .pme-filter-panel[data-mode="desktop"].minimized .pme-filter-toggle {
        position: absolute;
        left: -56px;
        top: 0;
        background: var(--e-global-color-primary, #4054b2);
        color: #fff;
        border-radius: 8px 0 0 8px;
        width: 56px;
        height: 56px;
        box-shadow: -4px 0 12px rgba(0, 0, 0, 0.15);
        padding: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 4px;
        font-size: 10px;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }
}

/* Tablet responsive design (768px - 1024px) */
@media (max-width: 1024px) and (min-width: 768px) {
    .pme-filter-panel[data-mode="tablet"] {
        width: 380px;
        max-width: calc(100vw - 40px);
        top: 20px;
        right: 20px;
        backdrop-filter: blur(8px);
        background: rgba(255, 255, 255, 0.95);
        border: 1px solid rgba(255, 255, 255, 0.2);
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .pme-filter-panel[data-mode="tablet"]::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.25);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 19999;
        backdrop-filter: blur(2px);
    }
    
    .pme-filter-panel[data-mode="tablet"]:not(.minimized)::before {
        opacity: 1;
        pointer-events: auto;
    }
    
    .pme-filter-panel[data-mode="tablet"].minimized {
        transform: translateX(calc(100% + 20px));
    }
    
    /* Floating Action Button for tablet */
    .pme-filter-panel[data-mode="tablet"] .pme-filter-toggle {
        position: fixed;
        top: calc(var(--safe-area-inset-top) + 20px);
        right: 20px;
        width: 56px;
        height: 56px;
        border-radius: 28px;
        background: var(--e-global-color-primary, #4054b2);
        color: white;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        font-weight: 600;
        border: none;
        cursor: pointer;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 21001;
    }
    
    .pme-filter-panel[data-mode="tablet"] .pme-filter-toggle::after {
        content: 'Filters';
        font-size: 10px;
        letter-spacing: 0.5px;
        text-transform: uppercase;
    }
    
    .pme-filter-panel[data-mode="tablet"] .pme-filter-toggle:hover {
        background: var(--e-global-color-accent, #61ce70);
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    }
    
    .pme-projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 20px;
    }
    
    /* Enhanced zoom controls for tablet */
    .leaflet-control-zoom a {
        width: 44px !important;
        height: 44px !important;
        line-height: 44px !important;
        font-size: 18px !important;
    }
}

/* Phase 3: Mobile-First UI Improvements - FAB Menu */
.pme-fab-menu {
    position: fixed;
    bottom: calc(var(--safe-area-inset-bottom, 0px) + 20px);
    right: 20px;
    z-index: 1000;
    display: none; /* Hidden by default, shown via JS on mobile */
}

.pme-fab-main {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--e-global-color-primary, #4054b2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    border: none;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 24px;
}

.pme-fab-main:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.pme-fab-main:active {
    transform: scale(0.95);
}

.pme-fab-actions {
    position: absolute;
    bottom: 70px;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    opacity: 0;
    transform: scale(0) translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

.pme-fab-menu.active .pme-fab-actions {
    opacity: 1;
    transform: scale(1) translateY(0);
    pointer-events: auto;
}

.pme-fab-action {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--e-global-color-primary, #4054b2);
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 20px;
    position: relative;
}

.pme-fab-action:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.pme-fab-action-label {
    position: absolute;
    right: 60px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: all 0.2s;
    pointer-events: none;
}

.pme-fab-action:hover .pme-fab-action-label {
    opacity: 1;
    transform: translateX(0);
}

/* Overlay when FAB menu is active */
.pme-fab-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 999;
}

.pme-fab-menu.active ~ .pme-fab-overlay {
    opacity: 1;
    pointer-events: auto;
}

/* Mobile responsive design (<768px) */
@media (max-width: 768px) {
    /* Show mobile filter section on mobile */
    .pme-mobile-filter-section {
        display: block;
    }
    
    /* Show FAB menu on mobile */
    .pme-fab-menu {
        display: block;
    }
    /* Phase 1.1: Optimized viewport for better content visibility */
    .pme-map-container {
        height: 45vh; /* Reduced for better mobile balance */
        min-height: 280px;
        max-height: 350px;
        padding-top: var(--safe-area-inset-top);
    }

    .pme-projects-section {
        margin-top: var(--pme-space-md); /* Add small margin instead of zero */
        padding-top: var(--pme-space-lg); /* Reduced padding */
        padding-bottom: calc(var(--safe-area-inset-bottom) + 20px);
    }

    /* Bottom sheet modal for mobile filter panel */
    .pme-filter-panel[data-mode="mobile"] {
        position: fixed;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-width: none;
        height: auto;
        max-height: 75vh;
        border-radius: 20px 20px 0 0;
        box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.25);
        transform: translateY(100%);
        transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        z-index: 21000;
        padding-bottom: calc(var(--safe-area-inset-bottom) + 20px);
        backdrop-filter: blur(10px);
        background: rgba(255, 255, 255, 0.95);
        border: 1px solid rgba(255, 255, 255, 0.2);
        overflow: hidden;
    }
    
    .pme-filter-panel[data-mode="mobile"]:not(.minimized) {
        transform: translateY(0);
    }
    
    .pme-filter-panel[data-mode="mobile"]::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.4);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 20999;
        backdrop-filter: blur(4px);
    }
    
    .pme-filter-panel[data-mode="mobile"]:not(.minimized)::before {
        opacity: 1;
        pointer-events: auto;
    }
    
    /* Floating Action Button for mobile filter toggle */
    .pme-filter-panel[data-mode="mobile"] .pme-filter-toggle {
        position: fixed;
        bottom: calc(var(--safe-area-inset-bottom) + 20px);
        right: 20px;
        width: 56px;
        height: 56px;
        border-radius: 28px;
        background: var(--e-global-color-primary, #4054b2);
        color: white;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 16px;
        font-weight: 600;
        border: none;
        cursor: pointer;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 21001;
    }
    
    .pme-filter-panel[data-mode="mobile"] .pme-filter-toggle:hover {
        background: var(--e-global-color-accent, #61ce70);
        transform: scale(1.05);
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    }
    
    .pme-filter-panel[data-mode="mobile"] .pme-filter-toggle::after {
        content: 'Filters';
        font-size: 12px;
        letter-spacing: 0.5px;
    }
    
    /* Mobile filter panel header with drag handle */
    .pme-filter-panel[data-mode="mobile"] .pme-filter-header {
        position: relative;
        padding: 24px 20px 16px;
        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
        cursor: grab;
        touch-action: none;
    }
    
    .pme-filter-panel[data-mode="mobile"] .pme-filter-header:active {
        cursor: grabbing;
    }
    
    .pme-filter-panel[data-mode="mobile"] .pme-filter-header::before {
        content: '';
        position: absolute;
        top: 8px;
        left: 50%;
        transform: translateX(-50%);
        width: 40px;
        height: 4px;
        background: rgba(0, 0, 0, 0.3);
        border-radius: 2px;
        transition: background-color 0.2s ease;
    }
    
    .pme-filter-panel[data-mode="mobile"] .pme-filter-header:hover::before {
        background: rgba(0, 0, 0, 0.4);
    }
    
    .pme-filter-panel[data-mode="mobile"] .pme-filter-header h3 {
        font-size: 16px;
        font-weight: 600;
        margin: 0;
        text-align: center;
        color: var(--pme-text-primary);
    }
    
    /* Enhanced touch targets for mobile */
    .pme-projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 20px;
        padding: 0 20px;
    }
    
    .pme-project-card {
        min-height: 44px;
        cursor: pointer;
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    
    .pme-project-card:active {
        transform: scale(0.98);
    }
    
    /* Optimized zoom controls for mobile */
    .leaflet-control-zoom {
        margin-top: calc(var(--safe-area-inset-top) + 20px) !important;
        margin-right: 20px !important;
        margin-bottom: auto !important;
        border-radius: 12px !important;
        box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2) !important;
    }
    
    .leaflet-control-zoom a {
        width: 52px !important;
        height: 52px !important;
        line-height: 52px !important;
        font-size: 22px !important;
        border-radius: 0 !important;
        touch-action: manipulation;
        backdrop-filter: blur(10px);
        background-color: rgba(255, 255, 255, 0.9) !important;
    }
    
    .leaflet-control-zoom a:first-child {
        border-radius: 12px 12px 0 0 !important;
    }
    
    .leaflet-control-zoom a:last-child {
        border-radius: 0 0 12px 12px !important;
    }
    
    /* Enhanced mobile zoom control interactions */
    .leaflet-control-zoom a:hover {
        background-color: var(--e-global-color-primary, #4054b2) !important;
        color: white !important;
        transform: none; /* Disable scale on mobile hover */
    }
    
    .leaflet-control-zoom a:active {
        background-color: var(--e-global-color-accent, #61ce70) !important;
        transform: scale(0.95);
    }
}

/* Small mobile devices (<480px) */
@media (max-width: 480px) {
    .pme-map-container {
        height: 65vh;
    }

    .pme-projects-section {
        margin-top: 65vh;
    }
    
    /* Increase filter panel height on small screens */
    .pme-filter-panel[data-mode="mobile"] {
        max-height: 75vh;
    }
    
    .pme-projects-grid {
        grid-template-columns: 1fr;
        padding: 0 16px;
        gap: 16px;
    }
    
    .pme-project-card {
        max-width: 100%;
    }
    
    /* Adjust floating action button position */
    .pme-filter-panel[data-mode="mobile"] .pme-filter-toggle {
        bottom: calc(var(--safe-area-inset-bottom) + 16px);
        right: 16px;
        width: 52px;
        height: 52px;
        border-radius: 26px;
    }
    
    /* Larger touch targets for very small screens */
    .pme-btn {
        min-height: 48px;
        padding: 12px 16px;
    }
}

/* ================================================
   CONSOLIDATED RESPONSIVE DESIGN
   ================================================ */

/* Mobile First: Small screens (up to 480px) */
@media (max-width: 480px) {
    /* Map adjustments */
    .pme-map-container {
        height: var(--pme-map-height-mobile);
        margin-right: 0 !important;
    }
    
    /* Hide desktop filter panel */
    .pme-filter-panel {
        display: none;
    }
    
    /* Show mobile filter section */
    .pme-mobile-filter-section {
        display: block;
    }
    
    /* Projects grid - single column */
    .pme-projects-grid {
        grid-template-columns: 1fr;
        gap: var(--pme-space-md);
        padding: 0 var(--pme-space-md);
    }
    
    /* Enhanced touch targets */
    .pme-btn {
        min-height: var(--pme-touch-target-mobile);
        padding: var(--pme-space-md) var(--pme-space-lg);
    }
    
    /* Map popup mobile optimization */
    .leaflet-popup-content-wrapper {
        max-width: calc(100vw - var(--pme-space-2xl)) !important;
        border-radius: var(--pme-radius-md) !important;
    }
    
    .pme-map-popup {
        padding: var(--pme-space-md);
    }
    
    .pme-map-popup-link {
        display: flex;
        align-items: center;
        justify-content: center;
        padding: var(--pme-space-md) var(--pme-space-lg);
        margin-top: var(--pme-space-md);
        background: var(--pme-primary);
        color: var(--pme-text-inverse) !important;
        border-radius: var(--pme-radius-sm);
        text-decoration: none !important;
        min-height: var(--pme-touch-target-min);
        touch-action: manipulation;
        transition: background-color var(--pme-transition-base);
    }
    
    .pme-map-popup-link:hover {
        background: var(--pme-accent) !important;
    }
}

/* Medium screens: 481px - 767px */
@media (min-width: 481px) and (max-width: 767px) {
    /* Map adjustments */
    .pme-map-container {
        height: var(--pme-map-height);
        margin-right: 0 !important;
    }
    
    /* Hide desktop filter panel */
    .pme-filter-panel {
        display: none;
    }
    
    /* Show mobile filter section */
    .pme-mobile-filter-section {
        display: block;
    }
    
    /* Projects grid - two columns */
    .pme-projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--pme-space-lg);
        padding: 0 var(--pme-space-lg);
    }
}

/* Tablets: 768px - 1023px */
@media (min-width: 768px) and (max-width: 1023px) {
    /* Map adjustments */
    .pme-map-container {
        height: var(--pme-map-height);
        margin-right: 0 !important;
    }
    
    /* Hide mobile filter section */
    .pme-mobile-filter-section {
        display: none;
    }
    
    /* Show filter panel as overlay */
    .pme-filter-panel {
        display: flex;
        width: 380px;
        max-width: calc(100vw - var(--pme-space-2xl));
        top: var(--pme-space-lg);
        right: var(--pme-space-lg);
        height: calc(100vh - var(--pme-space-2xl));
        backdrop-filter: blur(8px);
        background: rgba(255, 255, 255, 0.95);
        border-radius: var(--pme-radius-lg);
        z-index: var(--pme-z-modal);
    }
    
    /* Backdrop overlay for tablet */
    .pme-filter-panel::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.25);
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--pme-transition-slow);
        z-index: var(--pme-z-modal-backdrop);
        backdrop-filter: blur(2px);
    }
    
    .pme-filter-panel:not(.minimized)::before {
        opacity: 1;
        pointer-events: auto;
    }
    
    .pme-filter-panel.minimized {
        transform: translateX(calc(100% + var(--pme-space-lg)));
    }
    
    /* Projects grid - auto-fit columns */
    .pme-projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--pme-space-xl);
    }
}

/* Desktop: 1024px and above */
@media (min-width: 1024px) {
    /* Map adjustments - full width with horizontal filter bar */
    .pme-map-container {
        height: var(--pme-map-height);
        margin-right: 0;
    }
    
    /* Hide mobile filter section */
    .pme-mobile-filter-section {
        display: none;
    }
    
    /* Show filter panel as sidebar */
    .pme-filter-panel {
        display: flex;
        position: fixed;
        top: 0;
        right: 0;
        width: var(--pme-filter-panel-width);
        height: 100vh;
        z-index: var(--pme-z-fixed);
    }
    
    /* Projects grid - optimal desktop layout */
    .pme-projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--pme-space-xl);
    }
}

/* Large Desktop: 1200px and above */
@media (min-width: 1200px) {
    .pme-projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
        gap: var(--pme-space-2xl);
    }
}