/* 
   GIS Lab Manual Styles
   Extends Core Styles with Tri-Platform Switching
*/

:root {
    --arcgis-pro: #005e95;
    --qgis: #589632;
    --web-gis: #e17000;
}

/* Lab Header */
.lab-header {
    background: #1e293b;
    color: white;
    padding: 3rem 2rem;
    border-radius: 0 0 20px 20px;
    margin-bottom: 2rem;
}

.lab-badge {
    display: inline-block;
    padding: 0.25rem 1rem;
    background: var(--primary);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

/* Platform Switcher Tabs */
.platform-switcher {
    display: flex;
    gap: 0.5rem;
    margin: 2rem 0;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 0;
    position: sticky;
    top: 0;
    background: var(--bg-main);
    z-index: 100;
}

.tab-btn {
    padding: 1rem 2rem;
    border: none;
    background: #f1f5f9;
    cursor: pointer;
    font-weight: 700;
    border-radius: 8px 8px 0 0;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
    color: #64748b;
}

.tab-btn:hover {
    background: #e2e8f0;
}

/* Active States */
.tab-btn[data-platform="arcgis"].active {
    background: var(--arcgis-pro);
    color: white;
}

.tab-btn[data-platform="qgis"].active {
    background: var(--qgis);
    color: white;
}

.tab-btn[data-platform="web"].active {
    background: var(--web-gis);
    color: white;
}

/* Instruction Panes */
.instruction-pane {
    display: none;
    padding: 2rem;
    background: white;
    border-radius: 0 0 12px 12px;
    box-shadow: var(--shadow-sm);
    animation: fadeIn 0.3s ease;
}

.instruction-pane.active {
    display: block;
}

/* Platform Specific Accents inside panes */
[data-platform="arcgis"] .step-num { background: var(--arcgis-pro); color: white; }
[data-platform="qgis"] .step-num { background: var(--qgis); color: white; }
[data-platform="web"] .step-num { background: var(--web-gis); color: white; }

.step {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.step-num {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-weight: bold;
}

.step-content {
    flex: 1;
}

/* Key Data Download Box */
.data-download-card {
    background: #f8fafc;
    border: 2px dashed #cbd5e1;
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 2rem 0;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}