/* ClassPlanner Frontend Stylesheet - Mobile First */

/* Root */
.classplanner-planner {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    color: #1d1d1d;
    line-height: 1.6;
}

/* General Layout */
.classplanner-planner {
    max-width: 100%;
    margin: 0 auto;
    padding: 0;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .classplanner-planner {
        font-size: 14px;
    }
}

/* Dashboard Grid */
.classplanner-planner .planner-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    width: 100%;
}

@media (max-width: 768px) {
    .classplanner-planner .planner-grid {
        grid-template-columns: 1fr;
    }
}

/* Cards */
.classplanner-planner .planner-card {
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 16px;
    background-color: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.2s;
}

.classplanner-planner .planner-card:hover {
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.classplanner-planner .planner-card h3 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
}

.classplanner-planner .planner-card p {
    margin: 0 0 8px 0;
    font-size: 13px;
    color: #666;
}

/* Timeline View */
.classplanner-planner .timeline-container {
    display: flex;
    border: 1px solid #ddd;
    border-radius: 6px;
    background-color: #fff;
    overflow: auto;
    margin: 20px 0;
}

@media (max-width: 768px) {
    .classplanner-planner .timeline-container {
        margin: 16px 0;
    }
}

.classplanner-planner .timeline-scale {
    width: 50px;
    border-right: 1px solid #ddd;
    padding: 0 8px;
    font-size: 11px;
    color: #999;
    background-color: #fafafa;
    flex-shrink: 0;
}

.classplanner-planner .timeline-content {
    flex: 1;
    position: relative;
    padding: 12px;
    background-color: #fafafa;
}

@media (max-width: 768px) {
    .classplanner-planner .timeline-content {
        padding: 8px;
    }
}

/* Component Block */
.classplanner-planner .component-block {
    position: relative;
    border-radius: 4px;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 5px;
    cursor: grab;
    user-select: none;
    transition: opacity 0.2s;
}

.classplanner-planner .component-block:active {
    cursor: grabbing;
}

.classplanner-planner .component-block.dragging {
    opacity: 0.8;
}

.classplanner-planner .component-block h4 {
    margin: 0 0 3px 0;
    font-size: 14px;
    font-weight: 600;
}

.classplanner-planner .component-block p {
    margin: 0;
    font-size: 12px;
    opacity: 0.8;
}

.classplanner-planner .component-block-info {
    flex: 1;
    min-width: 0;
}

.classplanner-planner .component-block-duration {
    margin-left: 10px;
    text-align: center;
    cursor: pointer;
    min-width: 50px;
    font-weight: bold;
}

.classplanner-planner .component-block-duration small {
    display: block;
    font-size: 11px;
    opacity: 0.8;
    font-weight: normal;
}

.classplanner-planner .component-block-resize-hint {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background-color: rgba(0, 0, 0, 0.2);
    cursor: ns-resize;
}

/* Controls */
.classplanner-planner .control-group {
    display: flex;
    gap: 8px;
    margin: 16px 0;
}

@media (max-width: 768px) {
    .classplanner-planner .control-group {
        flex-wrap: wrap;
        margin: 12px 0;
    }
}

/* Buttons */
.classplanner-planner .components-button {
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid #ccc;
    background-color: #fff;
    color: #1d1d1d;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s;
}

.classplanner-planner .components-button:hover:not(:disabled) {
    background-color: #f5f5f5;
    border-color: #999;
}

.classplanner-planner .components-button.is-primary {
    background-color: #0073aa;
    color: #fff;
    border-color: #0073aa;
}

.classplanner-planner .components-button.is-primary:hover:not(:disabled) {
    background-color: #005a87;
    border-color: #005a87;
}

.classplanner-planner .components-button.is-destructive {
    color: #cc0000;
    border-color: #cc0000;
}

.classplanner-planner .components-button.is-destructive:hover:not(:disabled) {
    background-color: #ffebee;
}

.classplanner-planner .components-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Status Indicators */
.classplanner-planner .status-on-track {
    background-color: #d4edda;
    color: #155724;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
}

.classplanner-planner .status-overflow {
    background-color: #fff3cd;
    color: #856404;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
}

/* Form Controls */
.classplanner-planner .components-text-control {
    margin-bottom: 12px;
}

.classplanner-planner .components-text-control label {
    display: block;
    font-weight: 500;
    margin-bottom: 4px;
    font-size: 13px;
}

.classplanner-planner .components-text-control input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
}

.classplanner-planner .components-text-control input:focus {
    outline: none;
    border-color: #0073aa;
    box-shadow: 0 0 0 2px rgba(0, 115, 170, 0.2);
}

/* Modals */
.classplanner-planner .components-modal {
    background-color: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.classplanner-planner .components-modal__header {
    padding: 16px;
    border-bottom: 1px solid #eee;
    font-size: 16px;
    font-weight: 600;
}

.classplanner-planner .components-modal__content {
    padding: 16px;
}

/* Spinners */
.classplanner-planner .components-spinner {
    display: inline-block;
    width: 24px;
    height: 24px;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Notice/Toast */
.classplanner-planner .components-notice {
    padding: 12px 16px;
    border-radius: 4px;
    margin-bottom: 12px;
    font-size: 13px;
}

.classplanner-planner .components-notice.is-success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid #28a745;
}

.classplanner-planner .components-notice.is-error {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid #f5222d;
}

.classplanner-planner .components-notice.is-warning {
    background-color: #fff3cd;
    color: #856404;
    border-left: 4px solid #ffc107;
}

.classplanner-planner .components-notice.is-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-left: 4px solid #17a2b8;
}

/* Accessibility */
.classplanner-planner .visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Print Styles */
@media print {
    .classplanner-planner .components-button,
    .classplanner-planner .control-group {
        display: none;
    }

    .classplanner-planner .timeline-container {
        border: 1px solid #000;
        background-color: #fff;
    }
}