/* ============================================================
   TAC Viewer — Toolbar
   ============================================================ */

#toolbar {
    display: flex; align-items: center; gap: 3px;
    padding: 0 6px;
    background: var(--toolbar-bg);
    border-bottom: 1px solid var(--border);
    height: var(--toolbar-height);
    overflow-x: auto; overflow-y: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
    user-select: none;
}
#toolbar::-webkit-scrollbar { height: 3px; }
#toolbar::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 99px; }
#toolbar::-webkit-scrollbar { display: none; }

.toolbar-section { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }

/* Marca */
.toolbar-brand { gap: 6px; padding-right: 8px; border-right: 1px solid var(--border); flex-shrink: 0; }
.brand-logo { font-size: 20px; color: var(--brand-accent); line-height: 1; }
.brand-name { font-size: 12px; font-weight: 700; color: var(--text-primary); white-space: nowrap; }

/* En pantallas muy ajustadas, ocultar el texto del brand */
@media (max-width: 1280px) { .brand-name { display: none; } }

/* Separador vertical */
.tool-separator {
    width: 1px; height: 24px;
    background: var(--border-strong);
    margin: 0 2px; flex-shrink: 0;
}

/* ── Tool groups ─────────────────────────────────────────── */
.tool-groups { gap: 4px; }
.tool-group { display: flex; align-items: center; gap: 2px; }

/* ── Tool button ─────────────────────────────────────────── */
.tool-btn {
    width: var(--tool-btn-size); height: var(--tool-btn-size);
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    background: transparent;
    transition: all var(--fast);
    flex-shrink: 0;
    font-size: 11px; font-weight: 600;
    letter-spacing: 0.02em;
}
.tool-btn svg { width: 16px; height: 16px; }
.tool-btn:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
}
.tool-btn.active {
    background: rgba(120,218,171,0.15);
    color: var(--brand-accent);
    box-shadow: 0 0 0 1px rgba(120,218,171,0.3);
}
.tool-btn:active { transform: scale(0.94); }

/* Toggle buttons (invert, etc.) */
.toggle-btn.on {
    background: rgba(120,218,171,0.2);
    color: var(--brand-accent);
}

/* Abrir archivos */
.btn-open {
    width: auto; padding: 0 12px; gap: 6px;
    font-size: 12px; font-weight: 600;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
}

/* Cerrar estudio */
.btn-close-study {
    width: auto; padding: 0 10px; gap: 5px;
    font-size: 12px; font-weight: 600;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-strong);
}
.btn-close-study:hover {
    background: rgba(239,68,68,0.12);
    color: var(--danger);
    border-color: rgba(239,68,68,0.4);
}

/* Instalar PWA */
.btn-install {
    width: auto; padding: 0 10px; gap: 5px;
    font-size: 11px; font-weight: 600;
    background: rgba(120,218,171,0.12);
    color: var(--brand-accent);
    border: 1px solid rgba(120,218,171,0.3);
    animation: pulse-install 2s ease infinite;
}
.btn-install svg { width: 13px; height: 13px; }
.btn-install:hover { background: rgba(120,218,171,0.22); }
@keyframes pulse-install {
    0%, 100% { box-shadow: 0 0 0 0 rgba(120,218,171,0); }
    50%       { box-shadow: 0 0 0 4px rgba(120,218,171,0.15); }
}
.btn-open svg { width: 14px; height: 14px; }
.btn-open:hover { background: var(--bg-tertiary); border-color: var(--brand-accent); }

/* ── Windowing preset select ─────────────────────────────── */
.preset-select {
    height: var(--tool-btn-size);
    background: var(--bg-secondary);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 11px; font-weight: 600;
    padding: 0 22px 0 8px;
    cursor: pointer;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    /* Flecha personalizada */
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23556677'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 6px center;
    min-width: 140px;
    transition: border-color var(--fast);
    flex-shrink: 0;
}
.preset-select:hover { border-color: var(--brand-accent); }
.preset-select:focus { border-color: var(--brand-accent); box-shadow: 0 0 0 1px rgba(120,218,171,0.25); }
.preset-select option { background: #1a2540; color: #e2e8f0; }

/* ── Layout + color map ──────────────────────────────────── */
.toolbar-right { margin-left: auto; gap: 4px; }

.color-map-group,
.layout-group,
.export-group { display: flex; align-items: center; gap: 2px; }

.layout-btn {
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    background: transparent;
    transition: all var(--fast);
}
.layout-btn svg { width: 14px; height: 14px; fill: currentColor; stroke: none; }
.layout-btn:hover { background: var(--bg-secondary); color: var(--text-primary); }
.layout-btn.active {
    background: rgba(120,218,171,0.15);
    color: var(--brand-accent);
}
.layout-btn.on {
    background: rgba(120,218,171,0.2);
    color: var(--brand-accent);
    box-shadow: 0 0 0 1px rgba(120,218,171,0.3);
}

/* ── Botón Multi-window RGB ──────────────────────────────── */
.btn-multiwin {
    font-size: 10px;
    font-weight: 800;
    letter-spacing: 0.04em;
    background: linear-gradient(135deg,
        rgba(239,68,68,0.15) 0%,
        rgba(34,197,94,0.15) 50%,
        rgba(59,130,246,0.15) 100%);
}
.btn-multiwin.on {
    background: linear-gradient(135deg,
        rgba(239,68,68,0.35) 0%,
        rgba(34,197,94,0.35) 50%,
        rgba(59,130,246,0.35) 100%);
    box-shadow: 0 0 0 1px rgba(120,218,171,0.3);
    color: var(--text-primary);
}

/* ── Botón TV ────────────────────────────────────────────── */
.btn-tv {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
}
.btn-tv.on {
    background: rgba(59,130,246,0.18);
    color: #60a5fa;
    box-shadow: 0 0 0 1px rgba(59,130,246,0.3);
}

/* ── Botón SR — badge experimental ──────────────────────── */
.btn-superres {
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.03em;
    position: relative;
}
.btn-superres::after {
    content: 'β';
    position: absolute;
    top: 2px; right: 2px;
    font-size: 8px; font-weight: 700;
    color: var(--warning);
    line-height: 1; pointer-events: none;
}

/* ── Ocultar botones de toolbar (customizer) ────────────── */
.toolbar-btn-hidden {
    display: none !important;
}

/* ── Toolbar Customizer Panel ────────────────────────────── */
#toolbarCustomizer {
    position: fixed;
    z-index: 500;
    width: 230px;
    background: var(--bg-app);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 32px rgba(0,0,0,0.6);
    display: flex;
    flex-direction: column;
    max-height: 520px;
    overflow: hidden;
}
#toolbarCustomizer.hidden { display: none; }

.tc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 9px 12px 8px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.tc-title {
    font-size: 10px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.tc-close {
    width: 20px; height: 20px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-tertiary);
    font-size: 11px;
    transition: all var(--fast);
}
.tc-close:hover { background: var(--bg-secondary); color: var(--text-primary); }

.tc-body {
    overflow-y: auto;
    padding: 6px 0;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}
.tc-body::-webkit-scrollbar { width: 4px; }
.tc-body::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 99px; }

.tc-group { padding: 6px 12px; }
.tc-group + .tc-group {
    border-top: 1px solid var(--border);
    padding-top: 6px;
}
.tc-group-label {
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brand-accent);
    margin-bottom: 3px;
    opacity: 0.7;
}
.tc-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 3px 4px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--fast);
    font-size: 11px;
    color: var(--text-secondary);
    user-select: none;
}
.tc-item:hover { background: var(--bg-secondary); color: var(--text-primary); }
.tc-item input[type="checkbox"] {
    accent-color: var(--brand-accent);
    width: 13px; height: 13px;
    cursor: pointer;
    flex-shrink: 0;
}

.tc-footer {
    padding: 8px 12px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;
}
.tc-reset-btn {
    width: 100%;
    padding: 5px 0;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--fast);
    text-align: center;
}
.tc-reset-btn:hover { background: var(--bg-tertiary); color: var(--text-primary); }

/* ── Loading progress bar ───────────────────────────────── */
#loadingBar {
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 2px; background: var(--bg-tertiary);
    z-index: 200; overflow: hidden;
}
#loadingBarFill {
    height: 100%;
    background: linear-gradient(90deg, var(--brand-accent-dark), var(--brand-accent));
    transition: width 0.1s ease;
    width: 0%;
}