/* 
 * Teacher Rubric Builder Styles 
 * Theme: Academic Light Mode
 * Primary: #2D3436 | Secondary: #636E72 | Accent: #6C5CE7 | Background: #F8F9FA
 */

:root {
    --primary: #2D3436;
    --secondary: #636E72;
    --accent: #6C5CE7;
    --accent-hover: #5A4BCC;
    --bg-main: #F8F9FA;
    --bg-surface: #FFFFFF;
    --border: #DFE6E9;
    --border-hover: #B2BEC3;
    --text-main: #2D3436;
    --text-muted: #636E72;
    --danger: #D63031;
    --success: #00B894;

    --font-main: 'Inter', sans-serif;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
    /* App layout handles scrolling */
}

/* --- Layout --- */
.app-layout {
    display: flex;
    height: 100vh;
    width: 100vw;
}

.sidebar {
    width: 280px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* --- Sidebar --- */
.sidebar-header {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.sidebar-header i {
    font-size: 1.5rem;
    color: var(--accent);
}

.sidebar-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.sidebar-section {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.sidebar-section h3 {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.overflow-y {
    overflow-y: auto;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    transition: all 0.2s;
}

.nav-btn:hover {
    background-color: rgba(108, 92, 231, 0.05);
    color: var(--accent);
}

.nav-btn.active {
    background-color: rgba(108, 92, 231, 0.1);
    color: var(--accent);
    font-weight: 600;
}

.saved-list,
.template-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.saved-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.2s;
}

.saved-item:hover {
    background-color: var(--bg-main);
}

.saved-item.active {
    background-color: var(--bg-main);
    box-shadow: inset 2px 0 0 var(--accent);
}

.saved-item-name {
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--primary);
}

.btn-icon-danger {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    opacity: 0;
    transition: all 0.2s;
}

.saved-item:hover .btn-icon-danger {
    opacity: 1;
}

.btn-icon-danger:hover {
    color: var(--danger);
}

.template-item {
    font-size: 0.875rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s;
}

.template-item:hover {
    background-color: var(--bg-main);
    color: var(--text-main);
}

.sidebar-footer {
    padding: 1.5rem;
    margin-top: auto;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--accent);
    color: #FFF;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--border-hover);
}

.btn-outline:hover {
    background-color: var(--bg-main);
    border-color: var(--primary);
}

.btn-icon {
    background: transparent;
    color: var(--text-muted);
    padding: 0.25rem;
}

.btn-icon:hover {
    color: var(--primary);
    background: rgba(0, 0, 0, 0.05);
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
}

.w-full {
    width: 100%;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

/* --- Workspace --- */
.toolbar {
    height: 64px;
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    flex-shrink: 0;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.title-input {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 0.25rem 0.5rem;
    background: transparent;
    font-family: inherit;
    width: 300px;
    transition: all 0.2s;
}

.title-input:hover,
.title-input:focus {
    border-color: var(--border-hover);
    background: var(--bg-main);
    outline: none;
}

.points-badge {
    background-color: rgba(108, 92, 231, 0.1);
    color: var(--accent);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
}

.content-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
}

.rubric-container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: var(--bg-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
}

.rubric-meta {
    margin-bottom: 1.5rem;
}

.desc-input {
    width: 100%;
    font-family: inherit;
    font-size: 0.875rem;
    color: var(--text-muted);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    resize: none;
    transition: all 0.2s;
    background: transparent;
}

.desc-input:hover,
.desc-input:focus {
    border-color: var(--border-hover);
    background: var(--bg-main);
    outline: none;
}

/* --- Table Grid --- */
.rubric-grid-wrapper {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.rubric-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
    table-layout: fixed;
}

.col-criteria {
    width: 20%;
    min-width: 200px;
}

.rubric-table th,
.rubric-table td {
    border: 1px solid var(--border);
    padding: 1rem;
    vertical-align: top;
}

.rubric-table th {
    background-color: var(--bg-main);
    text-align: center;
}

/* Header Cells */
.col-header {
    position: relative;
}

.col-header-inner {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.level-name-input {
    width: 100%;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-main);
    border: 1px solid transparent;
    background: transparent;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
}

.level-points-input {
    width: 60px;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0 auto;
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.125rem;
}

.btn-del-col {
    position: absolute;
    top: -10px;
    right: -10px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
    font-size: 10px;
    box-shadow: var(--shadow-sm);
}

.rubric-table th:hover .btn-del-col {
    opacity: 1;
}

.btn-del-col:hover {
    color: var(--danger);
}

/* Body Cells */
.criteria-cell {
    position: relative;
    background-color: var(--bg-main);
}

.crit-title-input {
    width: 100%;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--primary);
    border: 1px solid transparent;
    background: transparent;
    padding: 0.25rem;
    margin-bottom: 0.5rem;
    border-radius: var(--radius-sm);
}

.crit-desc-input {
    width: 100%;
    font-size: 0.75rem;
    color: var(--text-muted);
    border: 1px solid transparent;
    background: transparent;
    padding: 0.25rem;
    resize: none;
    border-radius: var(--radius-sm);
    min-height: 60px;
}

.cell-desc-input {
    width: 100%;
    font-size: 0.75rem;
    color: var(--text-main);
    border: 1px solid transparent;
    background: transparent;
    padding: 0.25rem;
    resize: none;
    border-radius: var(--radius-sm);
    min-height: 80px;
}

.cell-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.cell-pts-override {
    margin-top: auto;
    padding-top: 0.5rem;
    display: flex;
    justify-content: flex-end;
}

.cell-pts-input {
    width: 40px;
    font-size: 0.75rem;
    text-align: right;
    border: 1px dashed var(--border);
    border-radius: 4px;
    padding: 0.125rem;
    color: var(--text-muted);
    background: transparent;
}


.crit-title-input:focus,
.crit-desc-input:focus,
.cell-desc-input:focus,
.level-name-input:focus {
    border-color: var(--border-hover);
    background: var(--bg-surface);
    outline: none;
}

.btn-del-row {
    position: absolute;
    top: 50%;
    left: -12px;
    transform: translateY(-50%);
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
    font-size: 14px;
    box-shadow: var(--shadow-sm);
    z-index: 10;
}

.rubric-table tr:hover .btn-del-row {
    opacity: 1;
}

.btn-del-row:hover {
    color: var(--danger);
}

/* Table Actions */
.table-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    margin-bottom: 2rem;
}

/* Grading Scale */
.grading-scale {
    background: var(--bg-main);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.scale-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.scale-header h3 {
    font-size: 0.875rem;
    font-weight: 600;
}

.scale-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 1rem;
}

.scale-item {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    text-align: center;
}

.scale-grade {
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.scale-range {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* --- Student View (Read Only) --- */
.view-preview .sidebar,
.view-preview .toolbar .toolbar-left input,
.view-preview .toolbar-right button.btn-primary,
.view-preview .table-actions,
.view-preview .btn-del-col,
.view-preview .btn-del-row,
.view-preview .btn-toggle-scale {
    display: none;
}

.view-preview .workspace {
    margin-left: auto;
    margin-right: auto;
    max-width: 1200px;
    width: 100%;
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
}

.view-preview .rubric-container {
    box-shadow: none;
    border: none;
    padding-top: 0;
}

.view-preview input,
.view-preview textarea {
    border: none !important;
    background: transparent !important;
    pointer-events: none;
    resize: none;
    overflow: hidden;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--primary);
    color: #FFF;
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-weight: 500;
    font-size: 0.875rem;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* Print Styles */
@media print {
    .no-print {
        display: none !important;
    }

    body {
        background: white;
        color: black;
        font-size: 12px;
    }

    .app-layout {
        height: auto;
        display: block;
    }

    .workspace {
        display: block;
        overflow: visible;
    }

    .content-scroll {
        padding: 0;
        overflow: visible;
    }

    .rubric-container {
        box-shadow: none;
        padding: 0;
        max-width: 100%;
        border: none;
    }

    .title-input {
        font-size: 18px;
        border: none;
        padding: 0;
        margin-bottom: 10px;
        pointer-events: none;
    }

    .desc-input {
        display: none;
    }

    /* Could show as div if needed, simplified for print */
    .rubric-grid-wrapper {
        border: none;
        overflow: visible;
    }

    .rubric-table th,
    .rubric-table td {
        border: 1px solid #000;
        padding: 8px;
    }

    input,
    textarea {
        border: none !important;
        background: transparent !important;
        resize: none !important;
        font-family: inherit;
        font-size: inherit;
        width: 100%;
        color: black !important;
    }

    .points-badge {
        display: none;
    }

    .grading-scale {
        border: none;
        padding: 10px 0;
        background: transparent;
    }

    .scale-grid {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
    }

    .scale-item {
        border: 1px solid #000;
        padding: 5px 10px;
        flex: 1;
    }
}