:root {
    /* Default Dark Theme */
    --bg-color: #111315;
    --card-bg: #1A1D1F;
    --text-primary: #FFFFFF;
    --text-secondary: #9A9CAE;
    --accent-blue: #6F76FF;
    --accent-blue-dim: rgba(111, 118, 255, 0.1);
    --accent-yellow: #FFB946;
    --accent-yellow-dim: rgba(255, 185, 70, 0.1);
    --accent-green: #2ECC71;
    --accent-green-dim: rgba(46, 204, 113, 0.1);
    --border-color: #2F3336;
    --input-bg: #111315;
    --modal-overlay: rgba(0, 0, 0, 0.7);
    --font-family: 'Inter', sans-serif;

    /* Filter Active State (Dark) */
    --filter-active-bg: #3A3F45;
    --filter-active-text: #FFFFFF;

    /* Modal Specifics (Dark) */
    --modal-bg: #1A1D1F;
    --comment-bg: #232629;
    --close-btn-hover: rgba(255, 255, 255, 0.1);

    /* Tag Colors (Dark) */
    --tag-category-bg: #2C2F33;
    --tag-category-text: #9A9CAE;
}

[data-theme="light"] {
    --bg-color: #F4F5F7;
    --card-bg: #FFFFFF;
    --text-primary: #172B4D;
    --text-secondary: #5E6C84;
    --accent-blue: #0052CC;
    --accent-blue-dim: rgba(0, 82, 204, 0.1);
    --accent-yellow: #FFAB00;
    --accent-yellow-dim: rgba(255, 171, 0, 0.1);
    --accent-green: #36B37E;
    --accent-green-dim: rgba(54, 179, 126, 0.1);
    --border-color: #DFE1E6;
    --input-bg: #FAFBFC;
    --modal-overlay: rgba(9, 30, 66, 0.54);

    /* Filter Active State (Light) */
    --filter-active-bg: #DEEBFF;
    --filter-active-text: #0052CC;

    /* Modal Specifics (Light) */
    --modal-bg: #FFFFFF;
    --comment-bg: #F4F5F7;
    --close-btn-hover: rgba(9, 30, 66, 0.08);

    /* Tag Colors (Light) */
    --tag-category-bg: #EBECF0;
    --tag-category-text: #42526E;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header Styles */
header.bd-header {
    background-color: var(--card-bg);
    padding: 0 2rem;
    height: 70px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.header-left,
.header-right {
    flex: 1;
    display: flex;
    align-items: center;
}

.header-right {
    justify-content: flex-end;
}

.header-center {
    flex: 2;
    text-align: center;
}

.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.2s;
}

.logo-link:hover {
    transform: scale(1.05);
}

.nav-logo {
    height: 50px;
    width: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.bd-header-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    /* Match homepage font if available, else fallback */
}

/* Theme Toggle Button */
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
    position: static;
    /* Reset absolute positioning */
    margin-left: auto;
}

.theme-toggle:hover {
    background: var(--card-bg);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

/* Footer */
.bd-footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: auto;
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color);
}

/* Navigation Toggle */
.nav-toggle {
    display: flex;
    gap: 0.5rem;
    background: transparent;
}

.nav-btn {
    text-decoration: none;
    color: var(--text-secondary);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-btn.active {
    background-color: #8FB5FF;
    color: #000;
}

.nav-btn:not(.active):hover {
    color: var(--text-primary);
}

main {
    padding: 2rem;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

/* Stats Dashboard */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.stat-info h3 {
    margin: 0 0 0.5rem 0;
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.stat-info .count {
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0;
}

.stat-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon.pending {
    color: var(--accent-yellow);
    background: var(--accent-yellow-dim);
}

.stat-icon.progress {
    color: #60A5FA;
    background: rgba(96, 165, 250, 0.1);
}

.stat-icon.completed {
    color: var(--accent-green);
    background: var(--accent-green-dim);
}

/* Filters */
.filters-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.filter-group {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
}

.filter-group:last-child {
    margin-bottom: 0;
}

.filter-label {
    width: 100px;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 600;
}

.filter-options {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.filter-chip {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-chip:hover {
    border-color: var(--text-secondary);
}

.filter-chip.active {
    background: var(--filter-active-bg);
    color: var(--filter-active-text);
    border-color: var(--filter-active-bg);
}

/* Task List */
.tasks-header {
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.task-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.25rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: transform 0.2s, border-color 0.2s;
    position: relative;
    overflow: hidden;
}

.task-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    bottom: 12px;
    width: 4px;
    border-radius: 0 4px 4px 0;
}

.task-card.status-pending::before {
    background-color: var(--accent-yellow);
}

.task-card.status-in-progress::before {
    background-color: #60A5FA;
}

.task-card.status-completed::before {
    background-color: var(--accent-green);
}

.task-card.status-completed {
    opacity: 0.75;
}

.task-card.status-completed .task-title {
    color: var(--text-secondary);
}

/* Priority Indicators */
.task-card::after {
    content: '';
    position: absolute;
    right: 12px;
    top: 12px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.task-card.priority-high::after {
    background-color: #ff6b6b;
    box-shadow: 0 0 4px rgba(255, 107, 107, 0.4);
}

.task-card.priority-medium::after {
    background-color: #f4d67a;
}

.task-card.priority-low::after {
    background-color: #7ed6a8;
}

.task-card:hover {
    border-color: #4A4F55;
    transform: translateY(-1px);
}

.task-main {
    flex: 1;
    padding-right: 1rem;
}

.task-title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
}

.task-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0 0 1rem 0;
    white-space: pre-wrap;
    /* Preserve line breaks */
    word-break: break-word;
    /* Prevent overflow */
}

.task-meta {
    display: flex;
    gap: 0.75rem;
}

.tag {
    padding: 0.25rem 0.75rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.tag.assignee {
    background: #2C2F33;
    /* Default */
    color: #D1D5DB;
}

.tag.assignee-bubu {
    background: rgba(255, 171, 0, 0.15);
    color: #FFAB00;
    border: 1px solid rgba(255, 171, 0, 0.3);
}

.tag.assignee-dudu {
    background: rgba(111, 118, 255, 0.15);
    color: #6F76FF;
    border: 1px solid rgba(111, 118, 255, 0.3);
}

.tag.assignee-both {
    background: rgba(46, 204, 113, 0.15);
    color: #2ECC71;
    border: 1px solid rgba(46, 204, 113, 0.3);
}

.tag.category {
    background: var(--tag-category-bg);
    color: var(--tag-category-text);
    border: 1px solid transparent;
    /* To match height if needed */
}

.task-arrow {
    color: var(--text-secondary);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay);
    backdrop-filter: blur(2px);
    overflow-y: auto;
    /* Enable scrolling for tall modals */
}

.modal-content {
    background-color: var(--modal-bg);
    margin: 5vh auto;
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 550px;
    border: 1px solid var(--border-color);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
    color: var(--text-primary);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h2 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 600;
}

.close-btn {
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    line-height: 1;
    padding: 0.5rem;
    margin: -0.5rem;
    border-radius: 50%;
    transition: background 0.2s;
}

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

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

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

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

textarea.form-control {
    min-height: 100px;
    resize: none;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

/* Custom Select Styling */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239A9CAE' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
    padding-right: 2.5rem;
}

.comments-section {
    margin-top: 1.5rem;
}

.comment {
    background: var(--comment-bg);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.comment-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.25rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.comment-author {
    font-weight: 700;
    color: var(--text-primary);
}

.add-comment {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.75rem;
    margin-top: 1rem;
}

.btn {
    padding: 0.6rem 1.25rem;
    border-radius: 8px;
    border: none;
    font-weight: 500;
    cursor: pointer;
    font-size: 0.9rem;
    transition: opacity 0.2s;
}

.btn:hover {
    opacity: 0.9;
}

.btn-primary {
    background-color: #60A5FA;
    /* Lighter blue from image */
    color: #000;
    font-weight: 600;
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-danger {
    background-color: rgba(255, 77, 77, 0.1);
    color: #FF4D4D;
    border: 1px solid rgba(255, 77, 77, 0.3);
}

.btn-danger:hover {
    background-color: rgba(255, 77, 77, 0.2);
}

.comment-actions {
    display: flex;
    gap: 0.5rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.comment:hover .comment-actions {
    opacity: 1;
}

.comment-action-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.75rem;
    padding: 0;
}

.comment-action-btn:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

/* Completed Page Specifics */
.reopen-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reopen-btn:hover {
    background: var(--card-bg);
}