/**
 * Plugin Name: Astro WASM Plate Solver
 * File: css/frontend-overlay.css
 * Description: Estilos para o leitor interativo de astrofotografias (Pan, Zoom, Overlays e Controls)
 */

/* ==========================================================================
   1. Container Principal do Leitor Interativo
   ========================================================================== */
.astro-viewer-container {
    position: relative;
    width: 100%;
    max-width: 100%;
    margin: 20px 0;
    overflow: hidden;
    border-radius: 8px;
    background-color: #050508;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    cursor: grab;
    user-select: none;
    -webkit-user-select: none;
    touch-action: none; /* Essencial para pinch-to-zoom fluido em dispositivos móveis */
    box-sizing: border-box;
}

.astro-viewer-container:active {
    cursor: grabbing;
}

/* ==========================================================================
   2. Alvo do Panzoom (Imagem Base + Camada SVG)
   ========================================================================== */
.astro-panzoom-target {
    position: relative;
    width: 100%;
    height: 100%;
    transform-origin: 0 0; /* Ponto de origem fixo para cálculos corretos de escala */
    will-change: transform; /* Ativa aceleração por GPU */
}

/* Imagem Astrofotográfica Base */
.astro-base-img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 100%;
    pointer-events: none; /* Impede o arrasto nativo do browser na imagem */
    user-select: none;
}

/* Camada SVG Sobreposta */
.astro-overlay-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    pointer-events: none; /* Permite que os cliques no SVG passem para o container */
}

/* Visibilidade do SVG ativada via classe no Container */
.astro-viewer-container.show-annotations .astro-overlay-svg {
    opacity: 1;
}

/* ==========================================================================
   3. Elementos do SVG (Marcadores, Objetos e Rótulos)
   ========================================================================== */

/* Marcadores Círculo / Alvo (DSO, Estrelas, etc.) */
.astro-target-marker {
    fill: none;
    stroke: #00f0ff;
    stroke-width: 1.5px;
    vector-effect: non-scaling-stroke; /* Mantém a espessura do traço constante no zoom */
    cursor: pointer;
    pointer-events: all; /* Ativa eventos do rato no marcador individual */
    transition: stroke 0.2s ease, fill 0.2s ease;
}

.astro-target-marker:hover {
    stroke: #ff0055;
    fill: rgba(255, 0, 85, 0.2);
}

/* Texto das Labels / Nome dos Objetos (M16, NGC, etc.) */
.astro-target-label {
    fill: #ffffff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    font-size: 12px;
    font-weight: 600;
    text-anchor: start;
    dominant-baseline: central;
    text-shadow: 0 0 4px rgba(0, 0, 0, 0.9), 0 0 2px rgba(0, 0, 0, 0.9);
    pointer-events: none;
    transition: font-size 0.05s linear;
}

/* Linhas de Conexão ou Constelações */
.astro-constellation-line {
    stroke: rgba(255, 255, 255, 0.35);
    stroke-width: 1px;
    stroke-dasharray: 3, 3;
    vector-effect: non-scaling-stroke;
}

/* ==========================================================================
   4. Tooltip Informativo Flutuante
   ========================================================================== */
.astro-tooltip {
    position: absolute;
    padding: 6px 12px;
    background: rgba(10, 12, 20, 0.92);
    color: #ffffff;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 12px;
    line-height: 1.4;
    border: 1px solid rgba(0, 240, 255, 0.4);
    border-radius: 4px;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -120%);
    transition: opacity 0.15s ease-in-out;
    z-index: 30;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    white-space: nowrap;
}

.astro-tooltip.active {
    opacity: 1;
}

.astro-tooltip strong {
    color: #00f0ff;
}

/* ==========================================================================
   5. Barra de Controlos Flutuante (Zoom / Pan / Toggle)
   ========================================================================== */
.astro-controls-bar {
    position: absolute;
    bottom: 15px;
    right: 15px;
    display: flex;
    gap: 6px;
    background: rgba(10, 12, 20, 0.85);
    padding: 6px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 20;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.astro-btn {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease, transform 0.1s ease;
    outline: none;
}

.astro-btn:hover {
    background: rgba(0, 240, 255, 0.3);
    color: #ffffff;
}

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

/* Estado Ativo do Botão de Visibilidade */
.astro-viewer-container.show-annotations .btn-toggle-labels {
    background: rgba(0, 240, 255, 0.4);
    box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
}

/* Ajustes para ecrãs pequenos / mobile */
@media (max-width: 600px) {
    .astro-controls-bar {
        bottom: 10px;
        right: 10px;
        padding: 4px;
        gap: 4px;
    }
    
    .astro-btn {
        width: 28px;
        height: 28px;
        font-size: 13px;
    }
}