/* Papers Section Styles */
.papers-sub-nav {
    background-color: var(--bg-secondary);
    border-radius: 10px;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.sub-nav-tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
}

.sub-nav-tab {
    flex: 1;
    text-align: center;
    padding: 1rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}

.sub-nav-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.sub-nav-tab:hover:not(.active) {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.sub-nav-tab i {
    margin-right: 0.5rem;
}

.papers-sub-content {
    min-height: 400px;
}

.papers-subsection {
    display: none;
}

.papers-subsection.active {
    display: block;
}

/* Papers Tabs */
.papers-tabs {
    display: flex;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.paper-tab {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    border-bottom: 2px solid transparent; 
}

.paper-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.paper-tab:hover:not(.active) {
    color: var(--text-primary);
}

.paper-tab i {
    margin-right: 0.5rem;
}

.papers-tab-content {
    min-height: 300px;
}

.paper-tab-pane {
    display: none;
}

.paper-tab-pane.active {
    display: block;
}

/* Papers Grid */
.papers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.paper-card {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid var(--primary);
    position: relative;
    overflow: hidden;
}

.paper-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.paper-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.paper-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.paper-card-subject {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.paper-card-number {
    font-size: 0.9rem;
    color: var(--text-secondary);
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-weight: 500;
}

.paper-card-details {
    margin-bottom: 1.5rem;
}

.paper-card-detail {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.paper-card-detail i {
    margin-right: 0.5rem;
    width: 16px;
    text-align: center;
}

.paper-card-timer {
    background-color: var(--warning);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-align: center;
    margin-bottom: 1rem;
}

.paper-card-timer.urgent {
    background-color: var(--error);
    animation: pulse 2s infinite;
}

.paper-card-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.paper-card-downloads {
    display: flex;
    gap: 0.5rem;
}

.paper-card-downloads .paper-card-action {
    flex: 1;
}

.paper-card-action {
    min-width: 120px;
    text-align: center;
}

/* No Papers Message */
.no-papers-message {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
}

.no-papers-message i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
    display: block;
}

.no-papers-message h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Year Filter */
.year-filter-container {
    min-width: 150px;
}

/* Paper Mission Modal */
.paper-mission-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.paper-mission-content {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    width: 100%;
    max-width: 900px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
}

.paper-mission-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--primary);
    color: white;
    border-radius: 12px 12px 0 0;
}

.paper-mission-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.mission-countdown {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.mission-countdown.urgent {
    color: var(--error);
    animation: pulse 1s infinite;
}

.paper-mission-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: var(--transition);
}

.paper-mission-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Mission Steps */
.mission-steps {
    display: flex;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    background-color: var(--bg-primary);
}

.mission-step {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    position: relative;
}

.mission-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 20px;
    right: -50%;
    width: 100%;
    height: 2px;
    background-color: var(--border);
    z-index: 1;
}

.mission-step.active:not(:last-child)::after {
    background-color: var(--primary);
}

.step-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    position: relative;
    z-index: 2;
    transition: var(--transition);
}

.mission-step.active .step-number {
    background-color: var(--primary);
    color: white;
}

.step-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.mission-step.active .step-label {
    color: var(--primary);
    font-weight: 600;
}

/* Mission Content */
.mission-content {
    flex: 1;
    padding: 1.5rem;
    overflow-y: auto;
}

.mission-step-content {
    display: none;
}

.mission-step-content.active {
    display: block;
}

/* PDF Viewer */
.pdf-viewer-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pdf-viewer {
    width: 100%;
    height: 500px;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background-color: var(--bg-primary);
}

.pdf-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-align: center;
    padding: 2rem;
}

.pdf-placeholder i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.pdf-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.download-buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.download-buttons .btn {
    flex: 1;
    min-width: 140px;
}

.pdf-notice {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 8px;
}

.pdf-notice i {
    color: var(--primary);
    font-size: 1rem;
    margin-top: 0.1rem;
}

/* Answers Grid */
.answers-container {
    max-height: 400px;
    overflow-y: auto;
}

.answers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 0.75rem;
    padding: 1rem;
}

.answer-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.answer-number {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.answer-options {
    display: flex;
    gap: 0.25rem;
}

.answer-option {
    width: 30px;
    height: 30px;
    border: 2px solid var(--border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.answer-option:hover {
    border-color: var(--primary);
    background-color: var(--primary-light);
}

.answer-option.selected {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

.mission-notice {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background-color: var(--warning-light);
    border: 1px solid var(--warning);
    border-radius: 8px;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.mission-notice i {
    color: var(--warning);
    font-size: 1rem;
    margin-top: 0.1rem;
}

/* Mission Navigation */
.mission-navigation {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-primary);
    border-radius: 0 0 12px 12px;
}

/* Results Modal */
.results-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.results-content {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.results-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--success);
    color: white;
    border-radius: 12px 12px 0 0;
}

.results-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.results-close {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: var(--transition);
}

.results-close:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.results-body {
    padding: 2rem;
}

.score-display {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.score-circle {
    position: relative;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: conic-gradient(var(--primary) 0%, var(--bg-tertiary) 0%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.score-circle::before {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    background-color: var(--bg-secondary);
    border-radius: 50%;
}

.score-percent {
    position: relative;
    z-index: 1;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.score-label {
    position: relative;
    z-index: 1;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.score-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.score-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background-color: var(--bg-primary);
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.score-item .score-label {
    color: var(--text-primary);
    font-weight: 500;
}

.score-item .score-value {
    font-weight: 700;
    color: var(--primary);
    font-size: 1.1rem;
}

.leaderboard-section {
    margin-top: 2rem;
}

.leaderboard-section h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.leaderboard {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 8px;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.leaderboard-item:last-child {
    border-bottom: none;
}

.leaderboard-item:hover {
    background-color: var(--bg-tertiary);
}

.leaderboard-rank {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-right: 1rem;
}

.leaderboard-details {
    flex: 1;
}

.leaderboard-name {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.leaderboard-stats {
    display: flex;
    gap: 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.leaderboard-score {
    font-weight: 700;
    color: var(--primary);
}

.leaderboard-points {
    font-weight: 700;
    color: var(--success);
}

.results-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

/* Animations */
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .papers-grid {
        grid-template-columns: 1fr;
    }
    
    .sub-nav-tabs {
        flex-direction: column;
    }
    
    .paper-card-actions {
        flex-direction: column;
    }
    
    .paper-card-downloads {
        flex-direction: column;
    }
    
    .paper-card-action {
        min-width: auto;
    }
    
    .mission-steps {
        flex-direction: column;
        gap: 1rem;
    }
    
    .mission-step:not(:last-child)::after {
        display: none;
    }
    
    .score-display {
        flex-direction: column;
        text-align: center;
    }
    
    .answers-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        gap: 0.5rem;
    }
    
    .answer-option {
        width: 25px;
        height: 25px;
        font-size: 0.7rem;
    }
    
    .download-buttons {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .paper-mission-content,
    .results-content {
        margin: 0.5rem;
        max-height: calc(100vh - 1rem);
    }
    
    .mission-content {
        padding: 1rem;
    }
    
    .results-body {
        padding: 1rem;
    }
    
    .pdf-viewer {
        height: 300px;
    }
}

/* End of Papers Section Styles */

/* Rankings Section Styles */
.rankings-tabs {
    display: flex;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.rankings-tab {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    border-bottom: 2px solid transparent;
}

.rankings-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.rankings-tab:hover:not(.active) {
    color: var(--text-primary);
}

.rankings-tab i {
    margin-right: 0.5rem;
}

.rankings-tab-content {
    min-height: 400px;
}

.rankings-tab-pane {
    display: none;
}

.rankings-tab-pane.active {
    display: block;
}

/* Enhanced Rankings Filters */
.rankings-filters {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    align-items: flex-end;
}

.rankings-filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
    min-width: 250px;
}

.rankings-filter-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rankings-filters .form-select {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: var(--transition);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'><path fill='%23666' d='M2 0L0 2h4zm0 5L0 3h4z'/></svg>");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
}

.rankings-filters .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.rankings-filters .form-select:hover {
    border-color: var(--primary);
}

.rankings-filters .form-select:disabled {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    cursor: not-allowed;
}

/* Enhanced Class Rankings Controls */
.class-rankings-controls {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    align-items: flex-end;
}

.class-rankings-controls .rankings-filter-group {
    min-width: 200px;
}

/* Rankings Summary */
.rankings-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

/* Enhanced Top School Card */
.top-school-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.top-school-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.top-school-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.top-school-info {
    flex: 1;
}

.top-school-label {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.top-school-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.top-school-count {
    font-size: 0.85rem;
    opacity: 0.9;
    font-weight: 500;
}

/* Enhanced User Rank Card */
.user-rank-card {
    background: linear-gradient(135deg, var(--primary-light), var(--bg-secondary));
    border: 2px solid var(--primary);
    padding: 1.5rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.user-rank-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark));
}

.user-rank-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.3);
}

.user-rank-info {
    flex: 1;
}

.user-rank-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.user-rank-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
}

.user-rank-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    background-color: var(--bg-primary);
    border-radius: 8px;
    border-left: 3px solid var(--primary);
}

.user-rank-item .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.user-rank-item .value {
    font-weight: 700;
    color: var(--primary);
    font-size: 0.9rem;
}

/* Enhanced Rankings Table */
.rankings-table-container {
    background-color: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.rankings-table-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-secondary));
}

.rankings-table-header h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
}

.rankings-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    line-height: 1.4;
}

.rankings-table {
    width: 100%;
}

.rankings-table-row {
    display: grid;
    grid-template-columns: 80px 1fr 150px 100px;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
    align-items: center;
}

.rankings-table-row.header {
    background-color: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.rankings-table-row:not(.header):hover {
    background-color: var(--bg-tertiary);
    transform: translateX(4px);
}

.rankings-table-row.current-user {
    background: linear-gradient(90deg, var(--primary-light), transparent);
    border-left: 4px solid var(--primary);
    position: relative;
}

.rankings-table-row.current-user::before {
    content: 'You';
    position: absolute;
    left: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--primary);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
}

.rank-col {
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    font-size: 1rem;
}

.name-col {
    font-weight: 500;
    color: var(--text-primary);
}

.district-col {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.score-col {
    font-weight: 700;
    text-align: right;
    color: var(--success);
    font-size: 1rem;
}

.no-data {
    grid-column: 1 / -1;
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Enhanced No Papers Message for Rankings */
.no-papers-message {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border-radius: 12px;
    border: 2px dashed var(--border);
}

.no-papers-message i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
    display: block;
    color: var(--primary);
}

.no-papers-message h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

.no-papers-message p {
    color: var(--text-secondary);
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.5;
}

/* Loading States */
.rankings-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 3rem;
    text-align: center;
    background-color: var(--bg-secondary);
    border-radius: 12px;
}

.loading-spinner .spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.rankings-error {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    border-radius: 12px;
    border: 2px solid var(--error-light);
}

.rankings-error i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--error);
}

.rankings-error h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-active {
    background-color: var(--success-light);
    color: var(--success-dark);
}

.status-verified {
    background-color: var(--primary-light);
    color: var(--primary-dark);
}

.status-pending {
    background-color: var(--warning-light);
    color: var(--warning-dark);
}

.status-inactive {
    background-color: var(--error-light);
    color: var(--error-dark);
}

/* Responsive Design for Rankings */
@media (max-width: 768px) {
    .rankings-filters {
        flex-direction: column;
    }
    
    .rankings-filter-group {
        min-width: 100%;
    }
    
    .rankings-summary {
        grid-template-columns: 1fr;
    }
    
    .rankings-table-row {
        grid-template-columns: 60px 1fr 80px 70px;
        gap: 0.75rem;
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .rankings-table-row.header {
        font-size: 0.8rem;
    }
    
    .district-col {
        font-size: 0.8rem;
    }
    
    .score-col {
        font-size: 0.9rem;
    }
    
    .class-rankings-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .user-rank-details {
        grid-template-columns: 1fr;
    }
    
    .user-rank-item {
        padding: 0.75rem;
    }
}

@media (max-width: 480px) {
    .rankings-tabs {
        flex-direction: column;
    }
    
    .rankings-tab {
        text-align: center;
        padding: 1rem;
    }
    
    .rankings-table-row {
        grid-template-columns: 50px 1fr 60px 50px;
        gap: 0.5rem;
        padding: 0.5rem;
        font-size: 0.8rem;
    }
    
    .top-school-card,
    .user-rank-card {
        flex-direction: column;
        text-align: center;
        padding: 1rem;
    }
    
    .user-rank-details {
        align-items: center;
    }
    
    .rankings-table-row.current-user::before {
        position: static;
        transform: none;
        display: inline-block;
        margin-right: 0.5rem;
    }
}

.rankings-meta {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.rankings-table-row .no-data {
    grid-column: 1 / -1;
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Month Filter Styles */
.month-filter-container {
    min-width: 150px;
}

/* Filters layout */
.content-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.year-filter-container,
.month-filter-container {
    min-width: 150px;
}