/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Institute Brand in Hero */
.institute-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 2rem;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.institute-brand i {
    font-size: 3rem;
    color: #64b5f6;
}

.institute-brand h2 {
    color: white;
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 60px 20px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

/* Search and Filter */
.search-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    animation: fadeInUp 1s ease-out 0.4s both;
}

.search-box {
    display: flex;
    background: white;
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.search-box:hover {
    transform: translateY(-2px);
}

.search-box input {
    border: none;
    padding: 15px 25px;
    font-size: 1rem;
    width: 400px;
    outline: none;
}

.search-box button {
    background: #1e3c72;
    border: none;
    padding: 15px 25px;
    color: white;
    cursor: pointer;
    transition: background 0.3s ease;
}

.search-box button:hover {
    background: #2a5298;
}

.filter-container select {
    padding: 12px 25px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.filter-container select:hover {
    border-color: rgba(255, 255, 255, 0.5);
    background: rgba(255, 255, 255, 0.2);
}

.filter-container select option {
    background: #1e3c72;
    color: white;
}

.toggle-filter-btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 12px 15px;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    margin-left: 10px;
}

.toggle-filter-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: rotate(180deg);
}

/* Hero WhatsApp Button */
.whatsapp-contact {
    margin-top: 1rem;
}

.hero-whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #25d366;
    color: white;
    text-decoration: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.hero-whatsapp-btn:hover {
    background: #128c7e;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.4);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero-whatsapp-btn i {
    font-size: 1.3rem;
}

/* Courses Section */
.courses-section {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: #1e3c72;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 2px;
}

.course-category {
    margin-bottom: 4rem;
}

.category-title {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 2rem;
    font-weight: 600;
    color: #2a5298;
    margin-bottom: 2rem;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9ff 0%, #e3f2fd 100%);
    border-radius: 15px;
    border-left: 5px solid #667eea;
}

.category-title i {
    color: #667eea;
    font-size: 1.8rem;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

/* Category Results Section */
.category-results {
    margin-bottom: 4rem;
    animation: slideInDown 0.8s ease-out;
}

.category-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    color: white;
}

.results-info {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.category-results-header h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0;
}

.results-count {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 400;
}

.show-all-btn {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 12px 25px;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.show-all-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.category-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.category-results-grid .course-card {
    animation: slideInFromRight 0.6s ease-out;
    animation-fill-mode: both;
}

.category-results-grid .course-card:nth-child(1) { animation-delay: 0.1s; }
.category-results-grid .course-card:nth-child(2) { animation-delay: 0.2s; }
.category-results-grid .course-card:nth-child(3) { animation-delay: 0.3s; }
.category-results-grid .course-card:nth-child(4) { animation-delay: 0.4s; }
.category-results-grid .course-card:nth-child(5) { animation-delay: 0.5s; }
.category-results-grid .course-card:nth-child(6) { animation-delay: 0.6s; }

/* Enhanced course card animations for category results */
.category-results-grid .course-card {
    transform-origin: center;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.category-results-grid .course-card:hover {
    transform: translateY(-15px) scale(1.05) rotate(2deg);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.2);
}

/* Pulse effect for category results header */
.category-results-header {
    animation: pulse 2s infinite;
}

/* Search highlight effect */
.search-highlight {
    background: linear-gradient(120deg, #ffd700 0%, #ffed4e 100%);
    color: #333;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    box-shadow: 0 2px 4px rgba(255, 215, 0, 0.3);
    animation: highlightPulse 1.5s ease-in-out infinite;
}

@keyframes highlightPulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 2px 4px rgba(255, 215, 0, 0.3);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 4px 8px rgba(255, 215, 0, 0.5);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(102, 126, 234, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0);
    }
}

/* Course Cards */
.course-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s ease;
    position: relative;
    cursor: pointer;
}

.course-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.course-card:hover::before {
    transform: scaleX(1);
}

.course-image {
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.course-image::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%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.course-card:hover .course-image::before {
    transform: translateX(100%);
}

.course-image i {
    font-size: 4rem;
    color: white;
    z-index: 2;
    position: relative;
    transition: transform 0.3s ease;
}

.course-card:hover .course-image i {
    transform: scale(1.1) rotate(5deg);
}

.course-content {
    padding: 25px;
}

.course-content h4 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #1e3c72;
    margin-bottom: 10px;
}

.course-content p {
    color: #666;
    margin-bottom: 20px;
    line-height: 1.6;
}

.course-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: #888;
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.learn-more-btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.learn-more-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.learn-more-btn:hover::before {
    left: 100%;
}

.learn-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

/* Course Buttons Container */
.course-buttons {
    display: flex;
    gap: 10px;
    flex-direction: column;
}

/* WhatsApp Button */
.whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 12px;
    background: #25d366;
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.whatsapp-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.whatsapp-btn:hover::before {
    left: 100%;
}

.whatsapp-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.4);
    background: #128c7e;
}

.whatsapp-btn i {
    font-size: 1.1rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 0;
    border-radius: 20px;
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    animation: modalSlideIn 0.3s ease-out;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    position: absolute;
    right: 20px;
    top: 15px;
    cursor: pointer;
    z-index: 10;
    transition: color 0.3s ease;
}

.close:hover {
    color: #1e3c72;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #1e3c72 0%, #2a5298 100%);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #64b5f6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #64b5f6;
}

.footer-whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #25d366;
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 20px;
    margin-top: 10px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.footer-whatsapp-btn:hover {
    background: #128c7e;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.8);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(100px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-100px) scale(0.8);
    }
    to {
        opacity: 1;
        transform: translateX(0) scale(1);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .search-box input {
        width: 300px;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .navbar {
        padding: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .search-box input {
        width: 250px;
    }
    
    .search-container {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Course Details Modal Content */
.course-details {
    padding: 40px;
}

.course-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

.course-header h2 {
    color: #1e3c72;
    font-size: 2rem;
    margin-bottom: 10px;
}

.course-header .course-level {
    display: inline-block;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.course-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.info-item {
    text-align: center;
    padding: 20px;
    background: #f8f9ff;
    border-radius: 15px;
    border: 1px solid #e3f2fd;
}

.info-item i {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 10px;
}

.info-item h4 {
    color: #1e3c72;
    margin-bottom: 5px;
}

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

.course-description {
    margin-bottom: 30px;
}

.course-description h3 {
    color: #1e3c72;
    margin-bottom: 15px;
}

.course-description p {
    color: #666;
    line-height: 1.8;
}

.course-curriculum {
    margin-bottom: 30px;
}

.course-curriculum h3 {
    color: #1e3c72;
    margin-bottom: 15px;
}

.curriculum-list {
    list-style: none;
}

.curriculum-list li {
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #666;
    display: flex;
    align-items: center;
    gap: 10px;
}

.curriculum-list li::before {
    content: '✓';
    color: #667eea;
    font-weight: bold;
}

.course-reviews {
    margin-bottom: 30px;
}

.course-reviews h3 {
    color: #1e3c72;
    margin-bottom: 15px;
}

.review-item {
    background: #f8f9ff;
    padding: 20px;
    border-radius: 15px;
    margin-bottom: 15px;
    border-left: 4px solid #667eea;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.reviewer-name {
    font-weight: 600;
    color: #1e3c72;
}

.review-rating {
    color: #ffc107;
}

.review-text {
    color: #666;
    line-height: 1.6;
}

.enroll-btn {
    display: block;
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 25px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    text-decoration: none;
}

.enroll-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
}