:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #f72585;
    --light-color: #f8f9fa;
    --dark-color: #212529;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--dark-color);
    overflow-x: hidden;
}

.navbar {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.navbar-brand {
    font-weight: 600;
    color: var(--primary-color) !important;
}

.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('https://picsum.photos/seed/literacy/1920/1080.jpg') center/cover;
    opacity: 0.2;
    z-index: -1;
}

.teacher-info {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    margin-bottom: 30px;
    backdrop-filter: blur(5px);
}

.section-title {
    font-weight: 600;
    margin-bottom: 30px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

/* Improved Work Card Styles */
.work-card {
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    height: 100%;
    border: none;
}

.work-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.work-card-img {
    height: 220px;
    object-fit: cover;
    width: 100%;
    transition: transform 0.3s ease;
}

.work-card:hover .work-card-img {
    transform: scale(1.05);
}

.work-card .card-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
}

.work-card .card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    line-height: 1.4;
    color: var(--dark-color);
}

.work-card .card-text {
    font-size: 0.9rem;
    line-height: 1.6;
    color: #6c757d;
    flex-grow: 1;
    margin-bottom: 1rem;
}

.work-card .text-muted {
    font-size: 0.85rem;
}

.work-type-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--accent-color);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    z-index: 10;
}

/* Filter Buttons */
.filter-btn {
    border-radius: 20px;
    padding: 8px 20px;
    margin: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid var(--primary-color);
}

.filter-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.filter-btn.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

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

/* Search Bar */
.input-group {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.input-group .form-control {
    border-right: none;
    border: 1px solid #e0e0e0;
}

.input-group .btn {
    border-left: none;
    border: 1px solid var(--primary-color);
}

/* Star Method Section */
.star-method {
    background-color: var(--light-color);
    border-radius: 10px;
    padding: 20px;
    margin-top: 20px;
    border-left: 4px solid var(--primary-color);
}

.star-method h5 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

.star-item {
    margin-bottom: 15px;
}

.star-item strong {
    color: var(--secondary-color);
}

.star-item div {
    margin-top: 8px;
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Modal Styles */
.work-modal .modal-content {
    border-radius: 15px;
    overflow: hidden;
}

.work-modal .modal-header {
    background-color: var(--primary-color);
    color: white;
    border-radius: 0;
}

.work-modal .modal-body {
    padding: 25px;
}

.work-modal img {
    border-radius: 10px;
    margin-bottom: 20px;
    width: 100%;
    height: auto;
}

/* Footer */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 50px 0 20px;
}

.social-icons a {
    color: white;
    font-size: 1.5rem;
    margin: 0 10px;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    color: var(--accent-color);
    transform: translateY(-5px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        padding: 70px 0;
    }
    
    .filter-btn {
        margin: 3px;
        padding: 6px 15px;
        font-size: 0.9rem;
    }
    
    .work-card-img {
        height: 180px;
    }
    
    .work-card .card-body {
        padding: 1rem;
    }
    
    .work-card .card-title {
        font-size: 1rem;
    }
    
    .work-card .card-text {
        font-size: 0.85rem;
    }
}

/* Animation for new elements */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.work-item {
    animation: fadeIn 0.5s ease-out;
}

/* Better button styles */
.btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
    transform: translateY(-2px);
}

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

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Empty state styling */
.empty-state {
    padding: 60px 20px;
    text-align: center;
}

.empty-state i {
    opacity: 0.5;
    margin-bottom: 20px;
}

.empty-state h4 {
    color: #6c757d;
    margin-bottom: 10px;
}

.empty-state p {
    color: #adb5bd;
}