:root {
    --bg-dark: #0f172a;
    --panel-bg: rgba(15, 23, 42, 0.85);
    --panel-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --font-main: 'Inter', sans-serif;
}

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

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

#app {
    display: flex;
    height: 100vh; /* Fallback */
    height: 100dvh; /* Altura dinâmica da tela para evitar bugs de mobile */
    width: 100vw;
}

/* Map Container */
#map {
    flex: 1;
    height: 100%;
    z-index: 1;
}

#sidebar {
    position: relative;
    width: 380px;
    height: 100%;
    background: var(--panel-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-right: 1px solid var(--panel-border);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    box-shadow: 4px 0 15px rgba(0,0,0,0.3);
    transition: transform 0.3s ease, margin-left 0.3s ease;
}

.sidebar-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid var(--panel-border);
}

.logos-container {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
    align-items: center;
}

.logo {
    height: 48px;
    object-fit: contain;
    filter: drop-shadow(0px 2px 4px rgba(0,0,0,0.5));
}

.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 4px;
    letter-spacing: 0.5px;
}

.sidebar-header .subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 16px 24px 40px 24px; /* Mais espaço no fundo para as ferramentas SIG não sumirem */
}

/* Scrollbar Customization */
.sidebar-content::-webkit-scrollbar {
    width: 6px;
}
.sidebar-content::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar-content::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.2);
    border-radius: 10px;
}

.control-group {
    margin-bottom: 24px;
}

.control-group h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
}

.divider {
    height: 1px;
    background: var(--panel-border);
    margin: 20px 0;
}

/* Radio Buttons for Basemap */
.basemap-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.radio-container {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 30px;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.radio-container:hover {
    color: var(--text-primary);
}

.radio-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.radio-checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 18px;
    width: 18px;
    background-color: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    transition: all 0.2s;
}

.radio-container:hover input ~ .radio-checkmark {
    background-color: rgba(255,255,255,0.2);
}

.radio-container input:checked ~ .radio-checkmark {
    background-color: var(--accent);
    border-color: var(--accent);
}

.radio-checkmark:after {
    content: "";
    position: absolute;
    display: none;
    top: 5px;
    left: 5px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: white;
}

.radio-container input:checked ~ .radio-checkmark:after {
    display: block;
}

/* Accordions */
.category-accordion {
    margin-bottom: 12px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid transparent;
    transition: border-color 0.3s;
}

.category-accordion:hover {
    border-color: rgba(255,255,255,0.1);
}

.category-accordion summary {
    padding: 12px 16px;
    font-weight: 500;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
}

.category-accordion summary::-webkit-details-marker {
    display: none;
}

.category-accordion summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.8rem;
    transition: transform 0.3s;
}

.category-accordion[open] summary::after {
    transform: rotate(180deg);
}

.layer-list {
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Checkboxes for Layers */
.layer-item {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 28px;
    cursor: pointer;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color 0.2s;
    user-select: none;
}

.layer-item:hover {
    color: var(--text-primary);
}

.layer-item input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 16px;
    width: 16px;
    background-color: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 4px;
    transition: all 0.2s;
}

.layer-item:hover input ~ .checkmark {
    background-color: rgba(255,255,255,0.2);
}

.layer-item input:checked ~ .checkmark {
    background-color: var(--accent);
    border-color: var(--accent);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 5px;
    top: 2px;
    width: 3px;
    height: 7px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.layer-item input:checked ~ .checkmark:after {
    display: block;
}

.layer-color-indicator {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-left: auto;
    border: 1px solid rgba(255,255,255,0.2);
}

/* Loading Indicator */
#loading-indicator {
    padding: 12px 24px;
    background: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
    font-size: 0.9rem;
    text-align: center;
    border-top: 1px solid var(--panel-border);
    transition: opacity 0.3s;
}

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

/* Leaflet Customizations for Dark Mode */
.leaflet-container {
    background-color: #1a1a2e;
}
.leaflet-control-zoom a {
    background-color: var(--panel-bg) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--panel-border) !important;
    backdrop-filter: blur(4px);
}
.leaflet-control-zoom a:hover {
    background-color: rgba(255,255,255,0.1) !important;
}

/* ============================================================ */
/* Layer item wrapper: checkbox label + download button         */
/* ============================================================ */
.layer-item-wrapper {
    display: flex;
    align-items: center;
    gap: 6px;
}

.layer-item-wrapper .layer-item {
    flex: 1;
    min-width: 0;
}

.btn-download-kml {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.15);
    background: rgba(255,255,255,0.06);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background 0.2s, color 0.2s, transform 0.15s;
    font-size: 0.7rem;
    padding: 0;
    line-height: 1;
}

.btn-download-kml:hover {
    background: rgba(59, 130, 246, 0.3);
    color: #93c5fd;
    border-color: rgba(59, 130, 246, 0.5);
    transform: scale(1.1);
}

.btn-download-kml:active {
    transform: scale(0.95);
}

.btn-download-kml.downloading {
    animation: spin 0.8s linear infinite;
    pointer-events: none;
    color: #93c5fd;
}

.btn-download-kml.downloading i::before {
    content: "\f110"; /* fa-spinner */
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

/* ============================================================ */
/* Format selector dropdown                                     */
/* ============================================================ */
#fmt-dropdown {
    position: fixed;
    z-index: 9999;
    background: rgba(15, 23, 42, 0.97);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    backdrop-filter: blur(12px);
    padding: 6px;
    display: none;
    flex-direction: column;
    gap: 4px;
    min-width: 190px;
}

#fmt-dropdown.open {
    display: flex;
}

.fmt-opt {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 14px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.88rem;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: left;
    width: 100%;
}

.fmt-opt:hover {
    background: rgba(59,130,246,0.2);
    color: var(--text-primary);
}

.fmt-opt i {
    width: 16px;
    text-align: center;
    color: var(--accent);
}
/* ============================================================ */
/* Ferramentas SIG                                              */
/* ============================================================ */
.sig-tools {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.tool-item {
    display: flex;
    width: 100%;
}

.btn-tool {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 14px;
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.4);
    border-radius: 6px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.btn-tool:hover {
    background: rgba(59, 130, 246, 0.3);
    border-color: rgba(59, 130, 246, 0.6);
}

.btn-tool:disabled {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.4);
    cursor: not-allowed;
}

.btn-tool i {
    color: var(--accent);
}

.btn-tool:disabled i {
    color: rgba(255, 255, 255, 0.4);
}

/* ============================================================ */
/* Responsividade e Toggle da Sidebar                           */
/* ============================================================ */

#sidebar-toggle {
    position: absolute;
    right: -24px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 50px;
    background: var(--panel-bg);
    border: 1px solid var(--panel-border);
    border-left: none;
    border-radius: 0 6px 6px 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 4px 0 10px rgba(0,0,0,0.2);
    z-index: 2000;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: background 0.2s, right 0.3s ease;
}

#sidebar-toggle:hover {
    background: var(--accent);
}

/* Estado Fechado no Desktop (usando margin-left no flex container) */
#sidebar.sidebar-closed {
    margin-left: -380px;
}

/* Responsividade para Telas Menores */
@media (max-width: 1024px) {
    #sidebar {
        position: absolute;
        left: 0;
        top: 0;
        width: 320px;
        max-width: 85vw;
        height: 100vh;
        height: 100dvh;
        z-index: 3000;
        transition: transform 0.3s ease;
    }
    
    #sidebar.sidebar-closed {
        margin-left: 0; 
        transform: translateX(-100%);
    }
}