@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-glass: rgba(22, 27, 34, 0.85);
    --surface: #1c2128;
    --border: #30363d;
    --border-active: #58a6ff;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --accent-glow: rgba(88, 166, 255, 0.15);
    --success: #3fb950;
    --warning: #d29922;
    --danger: #f85149;
    --info: #58a6ff;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

#app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
}

/* ===== SIDEBAR ===== */
#sidebar {
    width: 360px;
    min-width: 360px;
    height: 100vh;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: transform var(--transition), width var(--transition);
    position: relative;
}

#sidebar.collapsed {
    transform: translateX(-360px);
    width: 0;
    min-width: 0;
    overflow: hidden;
}

#sidebar-toggle {
    position: absolute;
    top: 12px;
    right: -44px;
    width: 36px;
    height: 36px;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 101;
    transition: all var(--transition);
    font-size: 18px;
}

#sidebar-toggle:hover {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
}

.sidebar-header .logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #58a6ff, #1f6feb);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.2);
}

.sidebar-header h1 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.sidebar-header .subtitle {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 2px;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.sidebar-content::-webkit-scrollbar {
    width: 6px;
}

.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

/* ==== PANELS ==== */
.panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    overflow: hidden;
    transition: border-color var(--transition);
}

.panel:hover { border-color: rgba(88, 166, 255, 0.3); }

.panel-header {
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
    transition: background var(--transition);
}

.panel-header:hover { background: var(--bg-tertiary); }

.panel-header .icon { font-size: 16px; margin-right: 10px; }

.panel-header h3 {
    font-size: 13px;
    font-weight: 600;
    flex: 1;
    letter-spacing: 0.2px;
}

.panel-header .chevron {
    font-size: 12px;
    color: var(--text-muted);
    transition: transform var(--transition);
}

.panel.open .panel-header .chevron {
    transform: rotate(180deg);
}

.panel-body {
    padding: 0 14px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
}

.panel.open .panel-body {
    padding: 0 14px 14px;
    max-height: 800px;
}

/* ==== SEARCH BAR ==== */
.search-group {
    position: relative;
    margin-bottom: 10px;
}

.search-group input {
    width: 100%;
    padding: 10px 12px 10px 36px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    outline: none;
    transition: all var(--transition);
}

.search-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.search-group .search-icon {
    position: absolute;
    left: 11px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    color: var(--text-muted);
    pointer-events: none;
}

.search-group .search-btn {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    width: 30px;
    height: 30px;
    background: var(--accent);
    border: none;
    border-radius: 4px;
    color: white;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    opacity: 0.9;
}

.search-group .search-btn:hover {
    opacity: 1;
    box-shadow: 0 0 12px var(--accent-glow);
}

/* ==== COORDINATE INPUTS ==== */
.coord-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.coord-row input {
    flex: 1;
    padding: 9px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 12px;
    font-family: 'Inter', monospace;
    outline: none;
    transition: all var(--transition);
}

.coord-row input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.coord-row label {
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    display: block;
    font-weight: 500;
}

.btn {
    padding: 9px 16px;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-primary {
    background: linear-gradient(135deg, #1f6feb, #58a6ff);
    color: white;
    box-shadow: 0 2px 8px rgba(31, 111, 235, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 4px 16px rgba(31, 111, 235, 0.4);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.btn-sm { padding: 6px 10px; font-size: 11px; }

.btn-block { width: 100%; }

/* ==== SECTORS LIST ==== */
.sector-list {
    max-height: 280px;
    overflow-y: auto;
    padding-right: 4px;
}

.sector-list::-webkit-scrollbar { width: 4px; }
.sector-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.sector-item {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    margin-bottom: 2px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition);
    gap: 10px;
}

.sector-item:hover { background: var(--bg-tertiary); }

.sector-item.active { background: var(--accent-glow); border: 1px solid rgba(88, 166, 255, 0.3); }

.sector-item .color-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.sector-item .sector-name {
    font-size: 12px;
    font-weight: 500;
    flex: 1;
}

.sector-item .sector-count {
    font-size: 11px;
    color: var(--text-muted);
    font-family: 'Inter', monospace;
}

.sector-filter {
    margin-bottom: 8px;
}

.sector-filter input {
    width: 100%;
    padding: 7px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 12px;
    font-family: inherit;
    outline: none;
    transition: all var(--transition);
}

.sector-filter input:focus {
    border-color: var(--accent);
}

/* ==== FEATURE INFO ==== */
.feature-info {
    padding: 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.feature-info .fi-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feature-info .fi-close {
    margin-left: auto;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 16px;
    transition: color var(--transition);
}

.feature-info .fi-close:hover { color: var(--danger); }

.fi-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 6px 12px;
}

.fi-grid .fi-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.fi-grid .fi-value {
    font-size: 12px;
    color: var(--text-primary);
    word-break: break-word;
}

.fi-divider {
    grid-column: 1 / -1;
    height: 1px;
    background: var(--border);
    margin: 6px 0;
}

/* ==== STATS BAR ==== */
.stats-bar {
    padding: 10px 14px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-item .stat-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
    font-family: 'Inter', monospace;
}

.stat-item .stat-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== MAP AREA ===== */
#map-area {
    flex: 1;
    position: relative;
    display: flex;
    flex-direction: column;
}

#viewDiv {
    flex: 1;
    background: var(--bg-primary);
}

/* ==== TOP BAR ==== */
#top-bar {
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 50;
    pointer-events: none;
}

#top-bar > * {
    pointer-events: auto;
}

.top-search {
    flex: 1;
    max-width: 480px;
    position: relative;
}

.top-search input {
    width: 100%;
    padding: 11px 14px 11px 42px;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: all var(--transition);
    box-shadow: var(--shadow-md);
}

.top-search input:focus {
    border-color: var(--accent);
    box-shadow: var(--shadow-md), 0 0 0 3px var(--accent-glow);
}

.top-search .ts-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 16px;
    color: var(--text-muted);
}

.top-search .search-results {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    right: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    max-height: 300px;
    overflow-y: auto;
    display: none;
}

.top-search .search-results.show { display: block; }

.sr-item {
    padding: 10px 14px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background var(--transition);
}

.sr-item:last-child { border-bottom: none; }
.sr-item:hover { background: var(--accent-glow); }

.sr-item .sr-title { font-size: 13px; font-weight: 500; }
.sr-item .sr-sub { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

/* ==== TOOLBAR ==== */
.toolbar {
    display: flex;
    gap: 4px;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 4px;
    box-shadow: var(--shadow-md);
}

.tool-btn {
    width: 38px;
    height: 38px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all var(--transition);
    position: relative;
}

.tool-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tool-btn.active {
    background: var(--accent);
    color: white;
    box-shadow: 0 0 12px var(--accent-glow);
}

.tool-btn[title]::after {
    content: attr(title);
    position: absolute;
    bottom: -32px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 11px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
    border: 1px solid var(--border);
    z-index: 999;
}

.tool-btn:hover[title]::after { opacity: 1; }

.tool-sep {
    width: 1px;
    background: var(--border);
    margin: 6px 2px;
}

/* ==== BOTTOM STATUS BAR ==== */
#status-bar {
    height: 32px;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 16px;
    gap: 20px;
    font-size: 11px;
    color: var(--text-secondary);
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 50;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: 'Inter', monospace;
}

.status-item .status-icon { font-size: 12px; }
.status-divider { width: 1px; height: 16px; background: var(--border); }

#loading-indicator {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 200;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    pointer-events: none;
}

#loading-indicator.hidden { display: none; }

.loader-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loader-text {
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

/* ==== CONTEXT MENU ==== */
#context-menu {
    position: fixed;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 220px;
    z-index: 500;
    display: none;
    animation: fadeIn 0.15s ease;
    overflow: hidden;
}

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

#context-menu.show { display: block; }

.ctx-header {
    padding: 10px 14px 8px;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    font-weight: 600;
}

.ctx-item {
    padding: 9px 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    transition: background var(--transition);
}

.ctx-item:hover { background: var(--accent-glow); }

.ctx-item .ctx-icon { font-size: 14px; width: 20px; text-align: center; }

.ctx-item .ctx-shortcut {
    margin-left: auto;
    font-size: 11px;
    color: var(--text-muted);
    font-family: 'Inter', monospace;
}

.ctx-divider { height: 1px; background: var(--border); margin: 4px 0; }

/* ==== MEASUREMENT PANEL ==== */
#measure-panel {
    position: absolute;
    bottom: 48px;
    right: 16px;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 16px;
    z-index: 60;
    min-width: 260px;
    display: none;
}

#measure-panel.show { display: block; }

#measure-panel h4 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.measure-btns {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.measure-result {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    text-align: center;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    font-family: 'Inter', monospace;
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==== BASEMAP GALLERY ==== */
#basemap-panel {
    position: absolute;
    top: 64px;
    right: 16px;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    padding: 12px;
    z-index: 60;
    display: none;
    width: 280px;
}

#basemap-panel.show { display: block; }

#basemap-panel h4 {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 10px;
}

.basemap-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.basemap-option {
    cursor: pointer;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid transparent;
    transition: all var(--transition);
    text-align: center;
}

.basemap-option:hover { border-color: rgba(88, 166, 255, 0.5); transform: scale(1.02); }
.basemap-option.active { border-color: var(--accent); box-shadow: 0 0 12px var(--accent-glow); }

.basemap-option img {
    width: 100%;
    height: 56px;
    object-fit: cover;
    display: block;
}

.basemap-option span {
    display: block;
    padding: 4px;
    font-size: 10px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ==== LEGEND ==== */
.legend-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 0;
}

.legend-color {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    flex-shrink: 0;
    border: 1px solid rgba(255,255,255,0.1);
}

.legend-label {
    font-size: 10px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ==== TOAST NOTIFICATIONS ==== */
#toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    font-size: 13px;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 250px;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.info { border-left: 3px solid var(--info); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast.error { border-left: 3px solid var(--danger); }

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

.toast.removing {
    animation: toastOut 0.3s ease forwards;
}

@keyframes toastOut {
    to { opacity: 0; transform: translateX(30px); }
}

/* ==== RESPONSIVE ==== */
@media (max-width: 768px) {
    #sidebar {
        position: absolute;
        left: 0;
        top: 0;
        width: 320px;
        min-width: 320px;
        box-shadow: var(--shadow-lg);
    }

    #sidebar.collapsed {
        transform: translateX(-320px);
    }

    .top-search { max-width: 100%; }

    #basemap-panel { width: 240px; right: 8px; }

    .basemap-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ==== ArcGIS Override Styles ==== */
.esri-ui-corner .esri-component { box-shadow: none !important; }
.esri-widget { background: transparent !important; color: var(--text-primary) !important; }
.esri-zoom .esri-widget--button {
    background: var(--bg-glass) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border) !important;
}
.esri-zoom .esri-widget--button:hover {
    background: var(--accent) !important;
}

.esri-attribution { opacity: 0.6; }
.esri-popup__main-container {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
}