:root {
    --bg-base: #0f172a;
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --success: #10b981;
    --gradient-glow: linear-gradient(135deg, rgba(59, 130, 246, 0.5) 0%, rgba(139, 92, 246, 0.5) 100%);
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-base);
    overflow: hidden;
}

#map {
    position: absolute;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1;
    visibility: hidden;
}

/* Glassmorphism Sidebar */
.glass-sidebar {
    position: absolute;
    top: 20px;
    left: 20px;
    width: 400px;
    max-height: calc(100vh - 40px);
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    z-index: 10;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow-y: auto;
    animation: slideIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    visibility: hidden;
}

.sidebar-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(15, 23, 42, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    overflow: hidden;
    flex-shrink: 0;
}

.sidebar-header::before {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    background: var(--gradient-glow);
    filter: blur(50px);
    opacity: 0.5;
    z-index: -1;
}

.sidebar-header h1 {
    font-size: 24px;
    font-weight: 600;
    letter-spacing: -0.5px;
    margin-bottom: 4px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-header p {
    font-size: 14px;
    color: var(--text-secondary);
}

.sidebar-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Steps */
.step-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    padding: 16px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    transition: transform 0.2s ease, background 0.2s;
}

.step-card:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.step-card.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.step-text h3 {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 4px;
}

.step-text p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Inputs */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.input-group input {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    padding: 12px 16px;
    border-radius: 8px;
    color: white;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.2s;
}

.input-group input:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Button */
.primary-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
}

.primary-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px var(--accent-color);
}

.primary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.primary-btn .btn-icon {
    transition: transform 0.2s;
}

.primary-btn:hover:not(:disabled) .btn-icon {
    transform: translateX(4px);
}

/* Loading State */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 24px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 12px;
    text-align: center;
}

.spinner {
    width: 30px;
    height: 30px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-container p {
    font-weight: 500;
    font-size: 15px;
}

.loading-container .subtext {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Results */
.results-container {
    animation: fadeIn 0.5s ease;
}

.results-container h3 {
    font-size: 16px;
    margin-bottom: 16px;
    color: var(--success);
}

.stat-box {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 16px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-size: 32px;
    font-weight: 700;
    color: var(--success);
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

.category-title {
    margin-top: 20px;
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.category-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.category-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 13px;
}

.category-color-blob {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 8px;
}

.layer-toggle-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
}

.layer-toggle-row input[type="checkbox"] {
    accent-color: var(--accent-color);
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.hidden {
    display: none !important;
}

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* =============================================================================
   Mode Toggle
   ============================================================================= */
.mode-toggle {
    display: flex;
    gap: 8px;
    margin-top: 16px;
    background: rgba(0, 0, 0, 0.3);
    padding: 4px;
    border-radius: 10px;
}

.toggle-btn {
    flex: 1;
    padding: 8px 12px;
    border: none;
    border-radius: 7px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.toggle-btn.active {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

.toggle-btn:hover:not(.active) {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* =============================================================================
   Chips (mode & time selectors)
   ============================================================================= */
.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip {
    padding: 7px 14px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.chip:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.chip.active {
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--accent-color);
    color: var(--text-primary);
}

/* Custom time input row */
.custom-time-row {
    display: flex;
    gap: 8px;
    margin-top: 4px;
    align-items: center;
}

.custom-time-row input {
    flex: 1;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    padding: 7px 12px;
    border-radius: 20px;
    color: white;
    font-size: 13px;
    font-family: inherit;
    transition: border-color 0.2s;
    min-width: 0;
}

.custom-time-row input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.custom-time-row input::placeholder {
    color: var(--text-secondary);
}


.chip-remove {
    margin-left: 4px;
    opacity: 0.6;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
}

.chip-remove:hover {
    opacity: 1;
}

/* =============================================================================
   Secondary Button
   ============================================================================= */
.iso-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

.secondary-btn {
    width: 100%;
    padding: 10px 16px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.iso-scrape-status {
    margin-top: 10px;
    color: var(--text-secondary);
    font-size: 12px;
    line-height: 1.4;
}

/* =============================================================================
   Isochrone Legend
   ============================================================================= */
.iso-legend {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 4px;
}

.iso-legend li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-primary);
}

.iso-swatch {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
    opacity: 0.85;
}

/* =============================================================================
   Combined POI / Walkshed Analysis
   ============================================================================= */
.shared-analysis {
    padding: 0 24px 24px;
    animation: fadeIn 0.5s ease;
}

.analysis-header {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 14px;
}

.analysis-header h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.analysis-mode-label {
    display: block;
    font-size: 12px;
    color: var(--text-secondary);
}

.analysis-badge {
    border: 1px solid rgba(59, 130, 246, 0.35);
    background: rgba(59, 130, 246, 0.12);
    color: var(--text-primary);
    border-radius: 999px;
    padding: 4px 9px;
    font-size: 11px;
    line-height: 1;
    flex-shrink: 0;
}

.walkshed-totals {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 8px;
    margin-bottom: 12px;
}

.walkshed-total-card {
    min-width: 0;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 10px 8px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.walkshed-total-card:hover {
    background: rgba(255, 255, 255, 0.08);
}

.walkshed-total-card.active {
    border-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.18);
}

.walkshed-total-card strong {
    display: block;
    font-size: 18px;
    line-height: 1.1;
    color: var(--text-primary);
    margin-bottom: 3px;
}

.walkshed-total-card span {
    display: block;
    font-size: 11px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.walkshed-map-filter {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.filter-label {
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
}

.filter-chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.filter-chip {
    border: 1px solid var(--glass-border);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 6px 10px;
    font-size: 12px;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.2s;
}

.filter-chip:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.filter-chip.active {
    border-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.22);
    color: var(--text-primary);
}

.filter-status {
    color: var(--text-secondary);
    font-size: 11px;
    line-height: 1.35;
}

.analysis-table-wrap {
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    overflow-x: auto;
    background: rgba(0, 0, 0, 0.16);
}

.analysis-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
    min-width: 320px;
}

.analysis-table th,
.analysis-table td {
    padding: 9px 10px;
    text-align: right;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.analysis-table th:first-child,
.analysis-table td:first-child {
    text-align: left;
    min-width: 150px;
}

.analysis-table th {
    color: var(--text-secondary);
    font-weight: 500;
    background: rgba(255, 255, 255, 0.03);
}

.analysis-table td {
    color: var(--text-primary);
}

.analysis-table tr:last-child td {
    border-bottom: none;
}

.analysis-row-toggle {
    cursor: pointer;
    transition: opacity 0.2s, background 0.2s;
}

.analysis-row-toggle:hover td,
.analysis-row-toggle:focus td {
    background: rgba(255, 255, 255, 0.04);
}

.analysis-row-toggle:focus {
    outline: none;
}

.analysis-row-toggle:focus-visible td:first-child {
    box-shadow: inset 3px 0 0 var(--accent-color);
}

.analysis-row-toggle.category-off {
    opacity: 0.45;
}

.analysis-row-toggle.category-off .category-color-blob {
    background: transparent !important;
    border: 1px solid var(--text-secondary);
}

.analysis-category {
    display: flex;
    align-items: center;
    gap: 8px;
}

.category-toggle-state {
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 500;
    font-variant-caps: all-small-caps;
    letter-spacing: 0.04em;
    margin-left: auto;
}

.analysis-empty-row td {
    text-align: left;
    color: var(--text-secondary);
}

/* =============================================================================
   Mapbox overrides
   ============================================================================= */
.mapboxgl-ctrl-top-right {
    top: 20px;
    right: 20px;
}

.mapbox-gl-draw_polygon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30' width='30' height='30'%3E%3Cpolygon points='15,3 27,11 22,25 8,25 3,11' fill='none' stroke='%23404040' stroke-width='1.8' stroke-linejoin='round'/%3E%3Ccircle cx='15' cy='3' r='2' fill='%23404040'/%3E%3Ccircle cx='27' cy='11' r='2' fill='%23404040'/%3E%3Ccircle cx='22' cy='25' r='2' fill='%23404040'/%3E%3Ccircle cx='8' cy='25' r='2' fill='%23404040'/%3E%3Ccircle cx='3' cy='11' r='2' fill='%23404040'/%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: center !important;
.mapboxgl-ctrl-top-right {
    top: 20px;
    right: 20px;
}

.mapbox-gl-draw_polygon {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30' width='30' height='30'%3E%3Cpolygon points='15,3 27,11 22,25 8,25 3,11' fill='none' stroke='%23404040' stroke-width='1.8' stroke-linejoin='round'/%3E%3Ccircle cx='15' cy='3' r='2' fill='%23404040'/%3E%3Ccircle cx='27' cy='11' r='2' fill='%23404040'/%3E%3Ccircle cx='22' cy='25' r='2' fill='%23404040'/%3E%3Ccircle cx='8' cy='25' r='2' fill='%23404040'/%3E%3Ccircle cx='3' cy='11' r='2' fill='%23404040'/%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: center !important;
    background-size: 20px 20px !important;
}

.mapboxgl-popup-content {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.14);
    color: #111827;
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.35);
}

.mapboxgl-popup-content,
.mapboxgl-popup-content * {
    color: #111827 !important;
    -webkit-text-fill-color: #111827 !important;
}
.mapboxgl-popup-anchor-bottom .mapboxgl-popup-tip {
    border-top-color: #ffffff;
}

/* =============================================================================
   Google Login Overlay & Card Styles
   ============================================================================= */
#login-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: radial-gradient(circle at center, rgba(15, 23, 42, 0.95) 0%, #0f172a 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

#login-overlay.visible {
    opacity: 1;
    pointer-events: auto;
}

.login-card {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    border-radius: 28px;
    padding: 48px;
    width: 100%;
    max-width: 440px;
    text-align: center;
    animation: scaleUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    background: var(--gradient-glow);
    filter: blur(60px);
    opacity: 0.25;
    z-index: -1;
}

.login-card h2 {
    font-size: 36px;
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 8px;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.login-divider {
    height: 1px;
    background: var(--glass-border);
    margin-bottom: 32px;
}

.login-error-msg {
    margin-top: 24px;
    color: #f87171;
    font-size: 13px;
    line-height: 1.5;
    background: rgba(248, 113, 113, 0.1);
    border: 1px solid rgba(248, 113, 113, 0.2);
    padding: 12px 16px;
    border-radius: 10px;
    text-align: left;
}

@keyframes scaleUp {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}