/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --panel-width: 300px;
    --toolbar-height: 48px;
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-calipers: #6366f1;
    --color-calipers-hover: #4f46e5;
    --color-danger: #ef4444;
    --color-danger-hover: #dc2626;
    --color-bg: #ffffff;
    --color-bg-hover: #f3f4f6;
    --color-border: #e5e7eb;
    --color-text: #111827;
    --color-text-muted: #6b7280;
    --color-toolbar-bg: #1a1a2e;
    --color-toolbar-text: #e5e7eb;
    --color-toolbar-border: #2d2d44;
    --radius: 6px;
    --shadow: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--color-text);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

/* === Toolbar === */
#toolbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--toolbar-height);
    background: var(--color-toolbar-bg);
    border-bottom: 1px solid var(--color-toolbar-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,.3);
}

.toolbar-group {
    display: flex;
    gap: 6px;
    align-items: center;
}

/* Brand */
.brand {
    display: flex;
    align-items: center;
    gap: 7px;
    color: var(--color-toolbar-text);
    user-select: none;
}
.brand-icon {
    color: var(--color-calipers);
}
.brand-name {
    font-size: 15px;
    font-weight: 600;
    letter-spacing: -.3px;
}
.brand-sub {
    font-weight: 400;
    opacity: .6;
    font-size: 13px;
}
.toolbar-divider {
    width: 1px;
    height: 24px;
    background: var(--color-toolbar-border);
    margin: 0 6px;
}

/* Tool buttons (mode selectors) */
.tool-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    border: 1px solid var(--color-toolbar-border);
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-toolbar-text);
    cursor: pointer;
    font-size: 13px;
    transition: all .15s;
}
.tool-btn:hover { background: rgba(255,255,255,.08); }
.tool-btn.active {
    background: var(--color-calipers);
    color: #fff;
    border-color: var(--color-calipers);
}
.tool-btn .icon { font-size: 15px; }

/* Action buttons */
.action-btn {
    padding: 6px 14px;
    border: 1px solid var(--color-toolbar-border);
    border-radius: var(--radius);
    background: transparent;
    color: var(--color-toolbar-text);
    cursor: pointer;
    font-size: 13px;
    transition: all .15s;
}
.action-btn:hover { background: rgba(255,255,255,.08); }
.action-btn.primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.action-btn.primary:hover { background: var(--color-primary-hover); }
.action-btn.calipers-btn {
    background: var(--color-calipers);
    color: #fff;
    border-color: var(--color-calipers);
    font-weight: 500;
}
.action-btn.calipers-btn:hover { background: var(--color-calipers-hover); }
.action-btn.danger { color: #fca5a5; }
.action-btn.danger:hover { background: rgba(239,68,68,.15); }
.action-btn.small { padding: 4px 10px; font-size: 12px; }
.btn-icon { font-size: 14px; }

/* === Side Panel === */
#panel {
    position: fixed;
    top: var(--toolbar-height);
    left: 0;
    bottom: 0;
    width: var(--panel-width);
    background: var(--color-bg);
    border-right: 1px solid var(--color-border);
    z-index: 900;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform .2s ease;
}
#panel.collapsed {
    transform: translateX(calc(-1 * var(--panel-width)));
}

#panel-toggle {
    position: absolute;
    top: 8px;
    right: -28px;
    width: 28px;
    height: 32px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-left: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 12px;
    color: var(--color-text-muted);
    z-index: 901;
}
#panel.collapsed #panel-toggle { transform: scaleX(-1); }

/* Search */
#search-container {
    padding: 10px;
    border-bottom: 1px solid var(--color-border);
}
#search-input {
    width: 100%;
    padding: 7px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13px;
    outline: none;
}
#search-input:focus { border-color: var(--color-primary); }

/* Panel sections */
.panel-section {
    padding: 10px;
    overflow-y: auto;
    flex: 1;
    min-height: 0;
}
.panel-section h3 {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .5px;
    color: var(--color-text-muted);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}
.section-add-btn {
    margin-left: auto;
    width: 22px;
    height: 22px;
    border: 1px solid var(--color-border);
    border-radius: 5px;
    background: var(--color-bg);
    color: var(--color-text-muted);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all .15s;
    padding: 0;
}
.section-add-btn:hover {
    background: var(--color-calipers);
    color: #fff;
    border-color: var(--color-calipers);
}
.section-add-btn.active {
    background: var(--color-calipers);
    color: #fff;
    border-color: var(--color-calipers);
}
.badge {
    background: var(--color-bg-hover);
    padding: 1px 7px;
    border-radius: 10px;
    font-size: 11px;
    font-weight: 500;
}

/* Item list */
.item-list {
    list-style: none;
}
.item-list li {
    padding: 6px 8px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background .1s;
}
.item-list li:hover { background: var(--color-bg-hover); }
.item-list li.selected { background: #dbeafe; }

.item-list .item-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.item-list .item-coords {
    font-size: 11px;
    color: var(--color-text-muted);
    white-space: nowrap;
}
.item-list .item-delete {
    opacity: 0;
    border: none;
    background: none;
    color: var(--color-danger);
    cursor: pointer;
    font-size: 14px;
    padding: 0 2px;
    transition: opacity .1s;
}
.item-list li:hover .item-delete { opacity: 1; }

.color-swatch {
    width: 12px;
    height: 12px;
    border-radius: 3px;
    flex-shrink: 0;
}

/* === Assign Status Bar === */
#assign-status {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-bg);
    color: var(--color-text);
    padding: 8px 16px;
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(0,0,0,.2);
    z-index: 1000;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 10px;
}
#assign-status .action-btn {
    color: var(--color-text);
    border-color: var(--color-border);
    background: var(--color-bg);
}
#assign-status .action-btn:hover { background: var(--color-bg-hover); }

/* === Map === */
#map {
    position: fixed;
    top: var(--toolbar-height);
    left: var(--panel-width);
    right: 0;
    bottom: 0;
    z-index: 1;
    transition: left .2s ease;
}
#panel.collapsed ~ #map {
    left: 0;
}

/* === Leaflet Popup Overrides === */
.stop-popup, .route-popup {
    min-width: 180px;
}
.stop-popup .popup-row,
.route-popup .popup-row {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 6px;
}
.stop-popup input,
.route-popup input {
    flex: 1;
    padding: 4px 6px;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-size: 13px;
}
.stop-popup label,
.route-popup label {
    font-size: 11px;
    color: var(--color-text-muted);
    font-weight: 500;
}
.popup-actions {
    display: flex;
    gap: 6px;
    margin-top: 6px;
}

/* Utility */
.hidden { display: none !important; }

/* Leaflet cursor overrides */
.leaflet-container.cursor-crosshair { cursor: crosshair !important; }

/* === Modal === */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.5);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal {
    background: var(--color-bg);
    border-radius: 12px;
    padding: 24px;
    max-width: 480px;
    width: 90%;
    box-shadow: 0 8px 24px rgba(0,0,0,.3);
}
.modal h2 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}
.modal-desc {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: 16px;
}
.modal-field {
    margin-bottom: 12px;
}
.modal-field label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: .3px;
    margin-bottom: 4px;
}
.modal-field input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 13px;
    outline: none;
}
.modal-field input:focus { border-color: var(--color-calipers); }
.modal-hint {
    font-size: 11px;
    color: var(--color-text-muted);
    margin-top: 6px;
    line-height: 1.4;
}
.modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 16px;
}
.modal-actions .action-btn {
    color: var(--color-text);
    border-color: var(--color-border);
}
.modal-actions .calipers-btn {
    color: #fff;
    border-color: var(--color-calipers);
}

/* === Custom Dialogs === */
.dialog-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.45);
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn .15s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.dialog {
    background: var(--color-bg);
    border-radius: 14px;
    padding: 24px;
    max-width: 420px;
    width: 90%;
    box-shadow: 0 12px 40px rgba(0,0,0,.25);
    animation: slideUp .2s ease;
}
.dialog h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}
.dialog-body {
    font-size: 13px;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: 14px;
}
.dialog-body a {
    color: var(--color-calipers);
    text-decoration: none;
    font-weight: 500;
}
.dialog-body a:hover { text-decoration: underline; }
.dialog-body code {
    font-family: 'SF Mono', 'Menlo', monospace;
    font-size: 12px;
    background: #f3f4f6;
    padding: 2px 5px;
    border-radius: 4px;
}
.dialog-field {
    margin-bottom: 12px;
}
.dialog-field label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: .3px;
    margin-bottom: 4px;
}
.dialog-field input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 14px;
    outline: none;
    transition: border-color .15s;
}
.dialog-field input:focus { border-color: var(--color-calipers); box-shadow: 0 0 0 3px rgba(99,102,241,.1); }
.dialog-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 18px;
}
.dialog-btn {
    padding: 8px 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all .15s;
}
.dialog-btn:hover { background: var(--color-bg-hover); }
.dialog-btn.primary {
    background: var(--color-calipers);
    color: #fff;
    border-color: var(--color-calipers);
}
.dialog-btn.primary:hover { background: var(--color-calipers-hover); }
.dialog-btn.danger {
    background: var(--color-danger);
    color: #fff;
    border-color: var(--color-danger);
}
.dialog-btn.danger:hover { background: var(--color-danger-hover); }

.dialog-tip {
    margin-top: 14px;
    padding: 10px 12px;
    background: #f0f0ff;
    border-radius: 8px;
    border-left: 3px solid var(--color-calipers);
    font-size: 12px;
    line-height: 1.5;
    color: var(--color-text);
}
.dialog-tip strong {
    color: var(--color-calipers);
}

/* Panel hints */
.panel-hint {
    font-size: 12px;
    color: var(--color-text-muted);
    padding: 8px 4px;
    line-height: 1.4;
}
.panel-section h3 svg {
    vertical-align: -2px;
    opacity: .6;
}

/* Route item content */
.route-item-content {
    flex: 1;
    min-width: 0;
    cursor: pointer;
}
.route-stops-summary {
    display: block;
    font-size: 11px;
    color: var(--color-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin-top: 1px;
}

/* Route detail (expanded when selected) */
.route-detail {
    padding: 0 !important;
    cursor: default !important;
    background: transparent !important;
}
.route-detail:hover { background: transparent !important; }
.route-detail-inner {
    padding: 4px 8px 8px 28px;
}
.route-detail-hint {
    font-size: 12px;
    color: var(--color-text-muted);
    font-style: italic;
}
.route-stop-order {
    list-style: none;
    counter-reset: stop-counter;
}
.route-stop-order li {
    counter-increment: stop-counter;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 0;
    font-size: 12px;
}
.route-stop-order li::before {
    content: counter(stop-counter) ".";
    color: var(--color-text-muted);
    font-size: 11px;
    min-width: 18px;
}
.route-stop-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.route-stop-actions {
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity .1s;
}
.route-stop-order li:hover .route-stop-actions { opacity: 1; }
.route-stop-actions button {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 10px;
    padding: 1px 3px;
    border-radius: 3px;
    color: var(--color-text-muted);
}
.route-stop-actions button:hover { background: var(--color-bg-hover); color: var(--color-text); }
.route-stop-actions button:disabled { opacity: .3; cursor: default; }
.route-stop-actions .remove-stop { color: var(--color-danger); }
.route-stop-actions .remove-stop:hover { background: #fef2f2; }

/* Panel footer */
.panel-footer {
    padding: 12px 10px;
    border-top: 1px solid var(--color-border);
    font-size: 11px;
    color: var(--color-text-muted);
    line-height: 1.5;
}
.panel-footer a {
    color: var(--color-calipers);
    text-decoration: none;
    font-weight: 500;
}
.panel-footer a:hover { text-decoration: underline; }
.panel-footer-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 10px;
}
.panel-footer-actions .action-btn {
    color: var(--color-text);
    border-color: var(--color-border);
    background: var(--color-bg);
    display: flex;
    align-items: center;
    gap: 5px;
}
.panel-footer-actions .action-btn:hover { background: var(--color-bg-hover); }
.panel-footer-actions .action-btn.danger { color: var(--color-danger); }

/* Hamburger & backdrop */
.btn-mobile-only { display: none; }
#panel-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.4);
    z-index: 899;
}

/* === Floating Action Buttons === */
#map-fabs {
    position: fixed;
    bottom: 24px;
    right: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 800;
}
.fab {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    background: var(--color-calipers);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0,0,0,.3);
    transition: background .15s, transform .1s;
}
.fab:hover { background: var(--color-calipers-hover); }
.fab:active { transform: scale(0.92); }
.fab.active { background: var(--color-primary); box-shadow: 0 0 0 3px rgba(59,130,246,.4); }

/* === Responsive: short/full button labels === */
.btn-label-short { display: none; }
.btn-label-full { display: inline; }

/* === Mobile (< 768px) === */
@media (max-width: 768px) {
    :root {
        --panel-width: 260px;
        --toolbar-height: 44px;
    }

    /* Toolbar: compact */
    #toolbar { padding: 0 6px; }
    .toolbar-group { gap: 4px; }
    .brand-name { font-size: 13px; }
    .brand-sub { display: none; }
    .toolbar-divider { display: none; }
    .action-btn { padding: 5px 8px; font-size: 12px; }
    .btn-label-full { display: none; }
    .btn-label-short { display: inline; }
    .btn-desktop-only { display: none; }
    .btn-mobile-only { display: flex; }

    /* Panel: overlay on top of map instead of pushing it */
    #panel {
        width: 280px;
        box-shadow: 2px 0 12px rgba(0,0,0,.25);
    }
    #panel.collapsed { transform: translateX(-280px); }
    #map { left: 0 !important; }

    /* Assign status bar */
    #assign-status {
        bottom: 12px;
        left: 8px;
        right: 8px;
        transform: none;
        font-size: 12px;
    }

    /* Smaller popups on mobile */
    .leaflet-popup-content-wrapper { font-size: 12px; }
    .leaflet-popup-content { margin: 10px 12px; min-width: 160px !important; }
    .stop-popup .popup-row, .route-popup .popup-row { margin-bottom: 4px; }
    .stop-popup input, .route-popup input { padding: 3px 5px; font-size: 12px; }
    .popup-actions { margin-top: 4px; }
    .popup-actions .action-btn { padding: 3px 8px; font-size: 11px; }

    /* Smaller dialogs on mobile */
    .dialog { padding: 16px; border-radius: 10px; max-width: 320px; }
    .dialog h3 { font-size: 14px; margin-bottom: 6px; }
    .dialog-body { font-size: 12px; margin-bottom: 10px; }
    .dialog-tip { font-size: 11px; padding: 8px 10px; margin-top: 10px; }
    .dialog-field input { padding: 6px 8px; font-size: 13px; }
    .dialog-btn { padding: 6px 14px; font-size: 12px; }
    .dialog-actions { margin-top: 12px; }
}

/* === Small phones (< 480px) === */
@media (max-width: 480px) {
    :root { --toolbar-height: 40px; }
    .brand-icon { width: 18px; height: 18px; }
    .brand-name { font-size: 12px; }
    .action-btn { padding: 4px 6px; font-size: 11px; }
    #panel { width: 240px; }
    #panel.collapsed { transform: translateX(-240px); }
}