/* SVM Specific Styles */

/* Stats Panel */
.svm-stats {
    background: var(--sidebar-bg);
    padding: 15px;
    border-radius: 8px;
    margin-top: 10px;
}

.svm-stats h3 {
    color: var(--accent);
    font-size: 1em;
    margin: 0 0 10px 0;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 5px;
}

.svm-stats p {
    margin: 5px 0;
    font-size: 0.9rem;
}

/* Calculation Panel */
.svm-calc {
    background: var(--card-bg);
    color: var(--text-primary);
    padding: 15px;
    border-radius: 8px;
    margin-top: 10px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}

.svm-calc h3 {
    color: #60a5fa;
    font-size: 0.9rem;
    margin: 0 0 10px 0;
    border-bottom: 1px solid #475569;
    padding-bottom: 5px;
}

.svm-calc #calcFormula {
    margin-bottom: 10px;
    padding: 8px;
    background: var(--bg-color);
    border-radius: 4px;
}

.svm-calc p {
    margin: 5px 0;
}

/* Info Box */
.svm-info {
    background: var(--step-info-bg);
    border-left: 4px solid #4ecdc4;
    padding: 15px;
    border-radius: 5px;
    margin-top: 10px;
}

.svm-info h4 {
    color: #4ecdc4;
    font-size: 0.9rem;
    margin: 0 0 10px 0;
}

.svm-info ul {
    padding-left: 20px;
    margin: 0;
    font-size: 0.8rem;
    line-height: 1.6;
}

.svm-info li {
    margin-bottom: 5px;
}

/* Legend */
.svm-legend {
    display: flex;
    gap: 15px;
    font-size: 0.85rem;
    margin-top: 10px;
    padding: 10px;
    background: var(--sidebar-bg);
    border-radius: 8px;
    flex-wrap: wrap;
}

.svm-legend .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
}

.svm-legend .blue {
    background-color: #3b82f6;
}

.svm-legend .red {
    background-color: #ef4444;
}

/* Instructions Overlay */
.svm-instructions {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--card-bg);
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    pointer-events: none;
    z-index: 10;
    font-weight: 600;
    color: var(--text-primary);
}

/* Canvas Container */
.main-area {
    position: relative;
    background: var(--bg-color);
}

.main-area canvas {
    background: var(--card-bg);
    box-shadow: 0 10px 25px var(--shadow);
    border-radius: 8px;
    cursor: crosshair;
}

/* Select Dropdown */
.control-item select {
    width: 100%;
    padding: 8px;
    border-radius: 6px;
    border: 2px solid var(--border-color);
    font-size: 0.9rem;
    background: var(--card-bg);
    cursor: pointer;
    color: var(--text-primary);
}

.control-item select:focus {
    outline: none;
    border-color: var(--accent);
}

/* Button Overrides for SVM */
.control-group button {
    margin: 3px 0;
}

/* Canvas Responsive */
.main-area canvas {
    max-width: 100%;
    height: auto;
    display: block;
    touch-action: none;
}

/* Show/Hide based on device */
.mobile-only {
    display: none;
}

.desktop-only {
    display: inline;
}

/* Mobile Optimizations */
@media (max-width: 768px) {

    /* Show/Hide Instructions */
    .mobile-only {
        display: inline;
    }

    .desktop-only {
        display: none;
    }

    /* Make canvas area larger on mobile */
    .demo-content {
        grid-template-columns: 1fr !important;
    }

    .sidebar {
        order: 2;
        /* Move sidebar below canvas */
        border-right: none;
        border-top: 2px solid #e0e0e0;
        padding: 15px;
    }

    .main-area {
        order: 1;
        /* Canvas on top */
        padding: 10px;
        min-height: 60vh;
    }

    /* Legend */
    .svm-legend {
        flex-direction: row;
        gap: 10px;
        font-size: 0.75rem;
        padding: 8px;
        flex-wrap: wrap;
    }

    .svm-legend>div {
        flex: 0 0 auto;
    }

    /* Instructions */
    .svm-instructions {
        font-size: 0.7rem;
        padding: 5px 10px;
        top: 5px;
        max-width: 95%;
        text-align: center;
        line-height: 1.3;
    }

    /* Canvas - Make it bigger */
    .main-area canvas {
        width: 100% !important;
        height: auto !important;
        min-height: 50vh;
        max-height: 70vh;
        object-fit: contain;
    }

    /* Stats & Calc Panels - Compact */
    .svm-stats,
    .svm-calc {
        padding: 10px;
        font-size: 0.75rem;
        margin-top: 8px;
    }

    .svm-stats h3,
    .svm-calc h3 {
        font-size: 0.8rem;
        margin-bottom: 8px;
    }

    .svm-calc #calcFormula {
        padding: 6px;
        font-size: 0.7rem;
    }

    /* Info Box - Compact on mobile */
    .svm-info {
        padding: 10px;
        font-size: 0.75rem;
        margin-top: 8px;
    }

    .svm-info h4 {
        font-size: 0.8rem;
        margin-bottom: 8px;
    }

    .svm-info ul {
        font-size: 0.7rem;
        line-height: 1.5;
        padding-left: 15px;
    }

    .svm-info li {
        margin-bottom: 4px;
    }

    /* Control groups - more compact */
    .control-group {
        padding: 12px;
        margin-bottom: 10px;
    }

    .control-group h3 {
        font-size: 0.9rem;
        margin-bottom: 10px;
    }

    /* Control items */
    .control-item {
        margin-bottom: 10px;
    }

    .control-item label {
        font-size: 0.8rem;
    }

    .value-display {
        font-size: 0.75rem;
        padding: 3px 10px;
    }

    /* Buttons - Larger for touch */
    .control-group button {
        font-size: 0.85rem;
        padding: 12px;
        margin: 4px 0;
    }

    /* Select dropdown */
    .control-item select {
        font-size: 0.85rem;
        padding: 10px;
    }
}

/* Extra Small Devices (phones in portrait) */
@media (max-width: 480px) {
    .svm-instructions {
        font-size: 0.65rem;
        padding: 4px 8px;
        border-radius: 12px;
    }

    .main-area {
        min-height: 55vh;
    }

    .main-area canvas {
        min-height: 45vh;
        max-height: 65vh;
    }

    /* Extra compact controls */
    .control-group {
        padding: 10px;
    }

    .control-item label {
        font-size: 0.75rem;
    }

    .value-display {
        font-size: 0.7rem;
        padding: 2px 8px;
    }

    /* Buttons */
    .control-group button {
        font-size: 0.8rem;
        padding: 10px;
    }

    .svm-legend {
        font-size: 0.7rem;
        padding: 6px;
    }
}

/* Landscape Mode on Mobile */
@media (max-width: 768px) and (orientation: landscape) {
    .main-area {
        min-height: 75vh;
    }

    .main-area canvas {
        min-height: 65vh;
        max-height: 85vh;
    }

    .svm-instructions {
        top: 3px;
        font-size: 0.65rem;
        padding: 3px 8px;
    }

    .sidebar {
        padding: 10px;
    }

    .control-group {
        padding: 8px;
        margin-bottom: 8px;
    }
}