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

:root {
    --primary-color: #4a69bd;
    --secondary-color: #6c5ce7;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --background: #f8f9fa;
    --card-shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--dark-color);
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 0;
    box-shadow: var(--card-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo i {
    font-size: 2rem;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255,255,255,0.2);
}

.header-actions {
    display: flex;
    gap: 1rem;
}

.btn-icon {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 5px;
    transition: var(--transition);
}

.btn-icon:hover {
    background: rgba(255,255,255,0.2);
}

/* Main Content */
.main {
    padding: 2rem 0;
    min-height: calc(100vh - 80px);
}

.content-section {
    display: none;
}

.content-section.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h1 {
    color: var(--dark-color);
    font-size: 2rem;
}

.section-header p {
    color: #666;
    margin-top: 0.5rem;
}

/* Buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(74, 105, 189, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.btn-icon-small {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 1rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 3px;
    transition: var(--transition);
}

.btn-icon-small:hover {
    background: rgba(74, 105, 189, 0.1);
}

/* Dashboard Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.blue { background: linear-gradient(135deg, #667eea, #764ba2); }
.stat-icon.green { background: linear-gradient(135deg, #27ae60, #2ecc71); }
.stat-icon.purple { background: linear-gradient(135deg, #f093fb, #f5576c); }
.stat-icon.orange { background: linear-gradient(135deg, #fa709a, #fee140); }

.stat-info h3 {
    font-size: 2rem;
    color: var(--dark-color);
}

.stat-info p {
    color: #666;
    font-size: 0.9rem;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h3 {
    color: var(--dark-color);
    font-size: 1.2rem;
}

.card-body {
    padding: 1.5rem;
}

/* Activity List */
.activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: var(--background);
    border-radius: 5px;
}

.activity-item i {
    font-size: 1.2rem;
}

.activity-content p {
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.time {
    font-size: 0.8rem;
    color: #666;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.quick-action-btn {
    background: var(--background);
    border: 2px solid transparent;
    padding: 1rem;
    border-radius: 10px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.quick-action-btn:hover {
    border-color: var(--primary-color);
    background: white;
}

.quick-action-btn i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.quick-action-btn span {
    font-size: 0.9rem;
    color: var(--dark-color);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    border-bottom: 2px solid #eee;
}

.tab-btn {
    background: none;
    border: none;
    padding: 1rem 1.5rem;
    cursor: pointer;
    color: #666;
    font-size: 1rem;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.tab-btn.active,
.tab-btn:hover {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* Search Bar */
.search-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.search-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.filter-select {
    padding: 0.75rem 1rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    background: white;
    cursor: pointer;
}

/* Data Table */
.data-table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

.data-table th {
    background: var(--primary-color);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
}

.data-table td {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

.data-table tr:hover {
    background: var(--background);
}

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

.udise-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.udise-stat {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--background);
    border-radius: 5px;
}

.udise-stat .value {
    font-weight: bold;
    color: var(--primary-color);
}

.facility-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.facility-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    background: var(--background);
    border-radius: 5px;
}

.facility-item i {
    font-size: 1.2rem;
}

/* Enrollment Chart */
.enrollment-chart {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.chart-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.bar-label {
    min-width: 100px;
    font-size: 0.9rem;
}

.bar-container {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.bar {
    height: 25px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 5px;
    transition: var(--transition);
}

.bar-container span {
    font-weight: bold;
    color: var(--primary-color);
}

/* Financial Stats */
.financial-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.financial-stat {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--background);
    border-radius: 5px;
}

.financial-stat .value {
    font-weight: bold;
    color: var(--success-color);
}

/* Report List */
.report-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.report-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--background);
    border-radius: 5px;
}

.report-info h4 {
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.report-info p {
    font-size: 0.9rem;
    color: #666;
}

/* Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.tool-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
}

.tool-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.tool-card h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: #666;
    font-size: 0.9rem;
}

/* Lesson Plan List */
.lesson-plan-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.lesson-plan-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--background);
    border-radius: 5px;
}

.lesson-info h4 {
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.lesson-info p {
    font-size: 0.9rem;
    color: #666;
}

.lesson-actions {
    display: flex;
    gap: 0.5rem;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: white;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(50px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    color: var(--dark-color);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #666;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1.5rem;
    border-top: 1px solid #eee;
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-weight: 500;
}

.form-input {
    padding: 0.75rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Footer */
.footer {
    background: var(--dark-color);
    color: white;
    text-align: center;
    padding: 1rem 0;
    margin-top: 3rem;
}

.footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-list {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .udise-grid {
        grid-template-columns: 1fr;
    }

    .tools-grid {
        grid-template-columns: 1fr;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .search-bar {
        flex-direction: column;
    }

    .tabs {
        overflow-x: auto;
        white-space: nowrap;
    }

    .data-table {
        font-size: 0.9rem;
    }

    .data-table th,
    .data-table td {
        padding: 0.5rem;
    }

    .modal {
        width: 95%;
        margin: 1rem;
    }
}

@media (max-width: 480px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .quick-actions {
        grid-template-columns: repeat(2, 1fr);
    }

    .tool-card {
        padding: 1.5rem;
    }

    .tool-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

/* Utility Classes */
.green { color: var(--success-color); }
.blue { color: var(--primary-color); }
.yellow { color: var(--warning-color); }
.red { color: var(--danger-color); }

.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mb-1 { margin-bottom: 1rem; }
.p-1 { padding: 1rem; }

/* Loading Spinner */
.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

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

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.message.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .btn-primary,
    .btn-secondary,
    .btn-icon,
    .btn-icon-small {
        display: none;
    }

    .main {
        padding: 0;
    }

    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #1a1a1a;
        --dark-color: #f0f0f0;
        --light-color: #333;
        --card-shadow: 0 2px 10px rgba(0,0,0,0.3);
    }

    body {
        background: var(--background);
        color: var(--dark-color);
    }

    .card {
        background: #2a2a2a;
    }

    .form-input {
        background: #333;
        border-color: #555;
        color: var(--dark-color);
    }

    .data-table {
        background: #2a2a2a;
    }

    .data-table tr:hover {
        background: #333;
    }
}

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

/* Focus Styles */
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0000ff;
        --secondary-color: #800080;
        --success-color: #008000;
        --warning-color: #ff8c00;
        --danger-color: #ff0000;
    }

    .btn-primary {
        border: 2px solid var(--dark-color);
    }

    .card {
        border: 2px solid var(--dark-color);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}