/* Advanced Tools Styles */

/* Sticky Floating Toolbar */
.floating-toolbar {
    position: -webkit-sticky;
    position: sticky;
    top: 80px; /* Below navbar */
    z-index: 999;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

/* Dark mode toolbar */
body.dark-mode .floating-toolbar {
    background: rgba(15, 23, 42, 0.9);
    border-color: var(--border-color);
}

/* Eraser Tool Styles */
.eraser-controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.size-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.size-control label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-color);
    min-width: 60px;
}

.size-control input[type="range"] {
    flex: 1;
    height: 6px;
    border-radius: 3px;
    background: var(--border-color);
    outline: none;
    transition: var(--transition);
}

.size-control input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-color);
    cursor: pointer;
    transition: var(--transition);
}

.size-control input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--accent-secondary);
    transform: scale(1.1);
}

.size-control span {
    font-size: 0.85rem;
    color: var(--text-light);
    min-width: 35px;
}

/* Shape Tools Grid */
.shapes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.shape-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
    gap: 0.5rem;
}

.shape-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.shape-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.shape-btn i {
    font-size: 1rem;
}

/* Lines Tools */
.lines-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.line-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
}

.line-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.line-btn.active {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.line-icon {
    font-size: 1.2rem;
    min-width: 24px;
    text-align: center;
}

.line-description {
    flex: 1;
}

.line-description h4 {
    margin: 0 0 0.25rem 0;
    font-size: 0.9rem;
    font-weight: 600;
}

.line-description p {
    margin: 0;
    font-size: 0.75rem;
    opacity: 0.8;
}

/* Tool Instructions */
.tool-instructions {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.75rem;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-light);
}

.tool-instructions.active {
    background: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.tool-instructions h4 {
    margin: 0 0 0.5rem 0;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-color);
}

.tool-instructions ul {
    margin: 0;
    padding-left: 1.2rem;
    list-style-type: disc;
}

.tool-instructions li {
    margin-bottom: 0.25rem;
}

/* Dark Mode Adjustments */
body.dark-mode .shape-btn,
body.dark-mode .line-btn {
    background: var(--bg-light);
    border-color: var(--border-color);
    color: var(--text-color);
}

body.dark-mode .shape-btn:hover,
body.dark-mode .line-btn:hover {
    background: var(--accent-color);
    color: white;
}

body.dark-mode .tool-instructions.active {
    background: rgba(251, 146, 60, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* Visual feedback for drawing modes */
.canvas-container.eraser-mode {
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><rect x="2" y="8" width="16" height="8" rx="2" fill="%23ff4444" stroke="%23333" stroke-width="1"/><rect x="4" y="10" width="12" height="4" fill="%23ffaaaa"/><circle cx="20" cy="12" r="2" fill="%23333"/></svg>'), auto !important;
}

.canvas-container.eraser-mode * {
    cursor: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24"><rect x="2" y="8" width="16" height="8" rx="2" fill="%23ff4444" stroke="%23333" stroke-width="1"/><rect x="4" y="10" width="12" height="4" fill="%23ffaaaa"/><circle cx="20" cy="12" r="2" fill="%23333"/></svg>'), auto !important;
}

.canvas-container.shape-mode {
    cursor: crosshair !important;
}

.canvas-container.line-mode {
    cursor: crosshair !important;
}

.canvas-container.move-mode {
    cursor: default !important;
}

.canvas-container.move-mode * {
    cursor: default !important;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .shapes-grid {
        grid-template-columns: 1fr;
    }

    .shape-btn,
    .line-btn {
        padding: 1rem;
        font-size: 0.9rem;
    }

    .line-description h4 {
        font-size: 1rem;
    }

    .line-description p {
        font-size: 0.8rem;
    }
}