/* assets/css/responsive.css */
/* Comprehensive Responsive Styles for All Devices */

/* ========================================
   TABLE OF CONTENTS
   ========================================
   1. Large Devices (1200px and up)
   2. Medium Devices (992px - 1199px)
   3. Tablets (768px - 991px) - WITH DROPDOWN SUPPORT
   4. Mobile Landscape (576px - 767px) - WITH DROPDOWN SUPPORT
   5. Mobile Portrait (up to 575px) - WITH DROPDOWN SUPPORT
   6. Small Mobile (up to 375px)
   7. Print Styles
   8. Utility Classes
   9. Dropdown Specific Styles
   ======================================== */

/* ========================================
   1. LARGE DEVICES (1200px and up)
   ======================================== */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
    }
    
    /* Hero Section */
    .hero-title {
        font-size: 4rem;
    }
    
    /* Project Grid */
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Dropdown hover on desktop */
    .dropdown:hover .dropdown-menu {
        display: block;
    }
}

/* ========================================
   2. MEDIUM DEVICES (992px - 1199px)
   ======================================== */
@media (min-width: 992px) and (max-width: 1199px) {
    .container {
        max-width: 960px;
    }
    
    /* Hero Section */
    .hero .container {
        gap: var(--spacing-lg);
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-stats {
        gap: var(--spacing-lg);
    }
    
    .stat-number {
        font-size: 1.75rem;
    }
    
    /* Skills Grid */
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Projects Grid */
    .projects-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Testimonials */
    .testimonials-slider {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Footer */
    .footer-content {
        gap: var(--spacing-lg);
    }
    
    /* Dropdown hover on desktop */
    .dropdown:hover .dropdown-menu {
        display: block;
    }
}

/* ========================================
   3. TABLETS (768px - 991px) - WITH DROPDOWN SUPPORT
   ======================================== */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        max-width: 720px;
        padding: 0 20px;
    }
    
    /* Typography */
    .section-title {
        font-size: 2.25rem;
    }
    
    .section-subtitle::before,
    .section-subtitle::after {
        width: 30px;
    }
    
    .section-subtitle::before {
        left: -35px;
    }
    
    .section-subtitle::after {
        right: -35px;
    }
    
    /* Navigation - Enhanced for tablets */
    .navbar {
        padding: 10px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: -100%;
        width: 320px;
        height: calc(100vh - 80px);
        background: white;
        flex-direction: column;
        padding: 30px 20px;
        box-shadow: var(--shadow-lg);
        transition: 0.3s ease-in-out;
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 5px 0;
        width: 100%;
    }
    
    .nav-link {
        font-size: 1.1rem;
        display: block;
        padding: 12px 15px;
        border-radius: 8px;
    }
    
    .nav-link:hover {
        background: var(--gray-100);
    }
    
    /* Dropdown styles for tablets */
    .dropdown {
        width: 100%;
    }
    
    .dropdown-toggle {
        width: 100%;
        justify-content: space-between;
        padding: 12px 15px;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0 0 0 20px;
        background: transparent;
        display: none;
        margin-top: 5px;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
    
    .dropdown-item {
        padding: 10px 15px;
        font-size: 1rem;
        border-radius: 6px;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    /* Hero Section */
    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-content {
        order: 2;
    }
    
    .hero-image {
        order: 1;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .stat-item {
        flex: 0 1 150px;
    }
    
    /* Skills Section */
    .skills {
        padding: 60px 0;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .skill-card {
        padding: 20px;
    }
    
    /* Projects Section */
    .projects {
        padding: 60px 0;
    }
    
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .project-info {
        padding: 20px;
    }
    
    .project-info h3 {
        font-size: 1.1rem;
    }
    
    /* Testimonials */
    .testimonials {
        padding: 60px 0;
    }
    
    .testimonials-slider {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .testimonial-card {
        padding: 20px;
    }
    
    /* Contact Section */
    .contact {
        padding: 60px 0;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        padding: 40px;
        text-align: center;
    }
    
    .contact-item {
        justify-content: center;
    }
    
    .contact-form-wrapper {
        padding: 40px;
    }
    
    /* Footer */
    .footer {
        padding: 60px 0 30px;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
}

/* ========================================
   4. MOBILE LANDSCAPE (576px - 767px) - WITH DROPDOWN SUPPORT
   ======================================== */
@media (min-width: 576px) and (max-width: 767px) {
    .container {
        max-width: 540px;
        padding: 0 15px;
    }
    
    /* Typography */
    .section-title {
        font-size: 2rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    .section-subtitle::before,
    .section-subtitle::after {
        display: none;
    }
    
    /* Navigation - Enhanced for mobile landscape */
    .navbar {
        padding: 8px 0;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow-lg);
        transition: 0.3s ease-in-out;
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 3px 0;
        width: 100%;
    }
    
    .nav-link {
        font-size: 1rem;
        display: block;
        padding: 12px 15px;
        border-radius: 8px;
    }
    
    /* Dropdown styles for mobile landscape */
    .dropdown {
        width: 100%;
    }
    
    .dropdown-toggle {
        width: 100%;
        justify-content: space-between;
        padding: 12px 15px;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0 0 0 15px;
        background: transparent;
        display: none;
        margin-top: 5px;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
    
    .dropdown-item {
        padding: 10px 15px;
        font-size: 0.95rem;
        border-radius: 6px;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    /* Hero Section */
    .hero {
        padding: 90px 0 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .hero-stats {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .experience-badge {
        right: -10px;
        bottom: -10px;
        padding: 10px 15px;
    }
    
    .experience-badge .years {
        font-size: 1.25rem;
    }
    
    /* Skills Section */
    .skills {
        padding: 40px 0;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .skill-card {
        padding: 20px;
    }
    
    .skill-header h3 {
        font-size: 1.1rem;
    }
    
    /* Projects Section */
    .projects {
        padding: 40px 0;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .project-card {
        max-width: 400px;
        margin: 0 auto;
    }
    
    .project-links {
        gap: 10px;
    }
    
    .project-link {
        width: 40px;
        height: 40px;
    }
    
    /* Testimonials */
    .testimonials {
        padding: 40px 0;
    }
    
    .testimonials-slider {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .testimonial-card {
        max-width: 450px;
        margin: 0 auto;
    }
    
    .testimonial-author img,
    .author-avatar {
        width: 50px;
        height: 50px;
    }
    
    /* Contact Section */
    .contact {
        padding: 40px 0;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        border-radius: 20px;
    }
    
    .contact-info {
        padding: 30px;
    }
    
    .contact-info h2 {
        font-size: 1.75rem;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
        gap: 10px;
    }
    
    .contact-item i {
        margin-bottom: 5px;
    }
    
    .contact-form-wrapper {
        padding: 30px;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    /* Footer */
    .footer {
        padding: 40px 0 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .footer-links ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }
    
    .footer-links li {
        margin: 0;
    }
    
    .footer-contact p {
        justify-content: center;
    }
}

/* ========================================
   5. MOBILE PORTRAIT (up to 575px) - WITH DROPDOWN SUPPORT
   ======================================== */
@media (max-width: 575px) {
    .container {
        padding: 0 15px;
    }
    
    /* Typography */
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-subtitle {
        font-size: 0.85rem;
        letter-spacing: 1px;
    }
    
    .section-subtitle::before,
    .section-subtitle::after {
        display: none;
    }
    
    .section-description {
        font-size: 0.95rem;
    }
    
    /* Navigation - Enhanced for mobile portrait */
    .navbar {
        padding: 8px 0;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    .logo-img {
        height: 30px;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        padding: 20px 15px;
        box-shadow: var(--shadow-lg);
        transition: 0.3s ease-in-out;
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        margin: 2px 0;
        width: 100%;
    }
    
    .nav-link {
        font-size: 1rem;
        display: block;
        padding: 12px 15px;
        border-radius: 8px;
    }
    
    /* Dropdown styles for mobile portrait */
    .dropdown {
        width: 100%;
    }
    
    .dropdown-toggle {
        width: 100%;
        justify-content: space-between;
        padding: 12px 15px;
    }
    
    .dropdown-toggle i {
        font-size: 0.8rem;
        transition: transform 0.3s ease;
    }
    
    .dropdown.active .dropdown-toggle i {
        transform: rotate(180deg);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        padding: 0 0 0 15px;
        background: transparent;
        display: none;
        margin-top: 5px;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
        animation: slideDown 0.3s ease;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .dropdown-item {
        padding: 10px 15px;
        font-size: 0.9rem;
        border-radius: 6px;
    }
    
    .nav-cta {
        margin-left: 0;
        margin-top: 15px;
        width: 100%;
    }
    
    .nav-cta .btn-sm {
        width: 100%;
        text-align: center;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    /* Hero Section */
    .hero {
        padding: 80px 0 30px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-title .highlight::after {
        height: 6px;
        bottom: 2px;
    }
    
    .hero-description {
        font-size: 0.95rem;
        margin-bottom: 25px;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .hero-buttons .btn {
        width: 100%;
        padding: 12px;
        font-size: 0.95rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 15px;
        margin-top: 30px;
    }
    
    .stat-item {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 10px 15px;
        background: rgba(37, 99, 235, 0.05);
        border-radius: 10px;
    }
    
    .stat-number {
        font-size: 1.5rem;
        margin-bottom: 0;
    }
    
    .stat-label {
        font-size: 0.9rem;
        margin: 0;
    }
    
    .hero-image {
        max-width: 280px;
    }
    
    .experience-badge {
        right: -5px;
        bottom: -5px;
        padding: 8px 12px;
    }
    
    .experience-badge .years {
        font-size: 1rem;
    }
    
    .experience-badge .text {
        font-size: 0.65rem;
    }
    
    /* Skills Section */
    .skills {
        padding: 30px 0;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .skill-card {
        padding: 20px;
    }
    
    .skill-header {
        margin-bottom: 15px;
    }
    
    .skill-icon {
        font-size: 1.5rem;
    }
    
    .skill-header h3 {
        font-size: 1.1rem;
    }
    
    .skill-progress {
        height: 6px;
    }
    
    .progress-label {
        font-size: 0.8rem;
        top: -20px;
    }
    
    .skill-experience {
        font-size: 0.8rem;
    }
    
    /* Projects Section */
    .projects {
        padding: 30px 0;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .project-card {
        max-width: 100%;
    }
    
    .project-image {
        height: 200px;
    }
    
    .project-links {
        gap: 8px;
    }
    
    .project-link {
        width: 35px;
        height: 35px;
        font-size: 0.9rem;
    }
    
    .project-info {
        padding: 15px;
    }
    
    .project-info h3 {
        font-size: 1rem;
    }
    
    .project-info p {
        font-size: 0.85rem;
        margin-bottom: 10px;
    }
    
    .tech-tag {
        padding: 3px 8px;
        font-size: 0.7rem;
    }
    
    .projects-cta {
        margin-top: 30px;
    }
    
    /* Testimonials Carousel */
    .testimonials-carousel {
        padding: 30px 0;
    }
    
    .carousel-container {
        padding: 0 35px;
    }
    
    .testimonial-card {
        padding: 20px;
    }
    
    .testimonial-rating {
        margin-bottom: 10px;
    }
    
    .testimonial-rating i {
        font-size: 0.9rem;
    }
    
    .testimonial-text {
        font-size: 0.9rem;
        margin-bottom: 15px;
        line-height: 1.5;
    }
    
    .testimonial-author img,
    .author-avatar {
        width: 45px;
        height: 45px;
    }
    
    .author-info h4 {
        font-size: 0.95rem;
    }
    
    .author-info p {
        font-size: 0.8rem;
    }
    
    .carousel-btn {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }
    
    /* Contact Section */
    .contact-section {
        padding: 30px 0;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        border-radius: 12px;
    }
    
    .contact-info {
        padding: 25px;
    }
    
    .contact-info h3 {
        font-size: 1.3rem;
    }
    
    .contact-info p {
        font-size: 0.9rem;
        margin-bottom: 20px;
    }
    
    .info-item {
        flex-direction: column;
        text-align: center;
        gap: 8px;
        margin-bottom: 20px;
    }
    
    .info-icon {
        width: 45px;
        height: 45px;
        margin: 0 auto;
    }
    
    .info-content h4 {
        font-size: 0.9rem;
    }
    
    .info-content a,
    .info-content p {
        font-size: 0.9rem;
    }
    
    .social-links h4 {
        text-align: center;
    }
    
    .social-icons {
        justify-content: center;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .contact-form h3 {
        font-size: 1.3rem;
        margin-bottom: 20px;
    }
    
    .form-group {
        margin-bottom: 15px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 0.9rem;
    }
    
    .btn-submit {
        padding: 12px;
        font-size: 0.95rem;
    }
    
    /* Footer */
    .footer {
        padding: 30px 0 15px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 25px;
        text-align: center;
    }
    
    .footer-brand h3 {
        font-size: 1.25rem;
    }
    
    .footer-brand p {
        font-size: 0.85rem;
    }
    
    .social-links {
        gap: 10px;
    }
    
    .social-links a {
        width: 35px;
        height: 35px;
    }
    
    .footer-links h4,
    .footer-contact h4 {
        font-size: 1rem;
        margin-bottom: 15px;
    }
    
    .footer-links ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
    }
    
    .footer-links li {
        margin: 0;
    }
    
    .footer-links a {
        font-size: 0.85rem;
    }
    
    .footer-contact p {
        font-size: 0.85rem;
        justify-content: center;
    }
    
    .footer-bottom {
        font-size: 0.8rem;
        padding-top: 20px;
    }
    
    /* Back to Top Button */
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 15px;
        right: 15px;
        font-size: 1rem;
    }
    
    /* Alerts */
    .alert {
        padding: 12px;
        font-size: 0.85rem;
    }
}

/* ========================================
   6. SMALL MOBILE (up to 375px)
   ======================================== */
@media (max-width: 375px) {
    .container {
        padding: 0 12px;
    }
    
    /* Typography */
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    /* Navigation */
    .nav-link {
        font-size: 0.95rem;
        padding: 10px 12px;
    }
    
    .dropdown-item {
        font-size: 0.85rem;
        padding: 8px 12px;
    }
    
    /* Hero Section */
    .hero {
        padding: 70px 0 20px;
    }
    
    .hero-description {
        font-size: 0.85rem;
    }
    
    .stat-item {
        padding: 8px 12px;
    }
    
    .stat-number {
        font-size: 1.25rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    /* Skills Section */
    .skill-card {
        padding: 15px;
    }
    
    .skill-header h3 {
        font-size: 1rem;
    }
    
    /* Projects Section */
    .project-image {
        height: 180px;
    }
    
    .project-link {
        width: 32px;
        height: 32px;
    }
    
    .project-info h3 {
        font-size: 0.95rem;
    }
    
    /* Testimonials Carousel */
    .testimonial-card {
        padding: 15px;
    }
    
    .testimonial-text {
        font-size: 0.85rem;
    }
    
    .carousel-btn {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
    
    /* Contact Section */
    .contact-info {
        padding: 20px;
    }
    
    .contact-info h3 {
        font-size: 1.2rem;
    }
    
    .contact-form {
        padding: 20px;
    }
    
    .contact-form h3 {
        font-size: 1.2rem;
    }
    
    .btn-submit {
        padding: 10px;
        font-size: 0.9rem;
    }
    
    /* Footer */
    .footer-content {
        gap: 20px;
    }
    
    .footer-links ul {
        gap: 12px;
    }
    
    .footer-links a {
        font-size: 0.8rem;
    }
}

/* ========================================
   7. PRINT STYLES
   ======================================== */
@media print {
    .navbar,
    .hero-buttons,
    .back-to-top,
    .footer,
    .contact-form-wrapper,
    .dropdown-menu,
    .nav-cta {
        display: none !important;
    }
    
    .hero,
    .skills,
    .projects,
    .testimonials-carousel,
    .contact-section {
        padding: 20px 0;
        page-break-inside: avoid;
    }
    
    .hero-image {
        max-width: 200px;
    }
    
    a {
        text-decoration: none;
        color: #000;
    }
    
    .container {
        max-width: 100%;
        padding: 0 15px;
    }
}

/* ========================================
   8. UTILITY CLASSES FOR RESPONSIVE
   ======================================== */
/* Show/Hide on different devices */
.hide-on-mobile {
    display: block;
}

.show-on-mobile {
    display: none;
}

@media (max-width: 768px) {
    .hide-on-mobile {
        display: none;
    }
    
    .show-on-mobile {
        display: block;
    }
}

/* Responsive text alignment */
@media (max-width: 768px) {
    .text-center-mobile {
        text-align: center;
    }
    
    .text-left-mobile {
        text-align: left;
    }
    
    .text-right-mobile {
        text-align: right;
    }
}

/* Responsive margins and padding */
@media (max-width: 768px) {
    .mt-5-mobile {
        margin-top: 3rem;
    }
    
    .mb-5-mobile {
        margin-bottom: 3rem;
    }
    
    .py-3-mobile {
        padding-top: 2rem;
        padding-bottom: 2rem;
    }
}

/* Responsive font sizes */
@media (max-width: 768px) {
    .fs-1-mobile {
        font-size: 2rem;
    }
    
    .fs-2-mobile {
        font-size: 1.5rem;
    }
    
    .fs-3-mobile {
        font-size: 1.25rem;
    }
}

/* Flexbox utilities for responsive */
@media (max-width: 768px) {
    .flex-column-mobile {
        flex-direction: column;
    }
    
    .flex-wrap-mobile {
        flex-wrap: wrap;
    }
    
    .justify-center-mobile {
        justify-content: center;
    }
    
    .align-center-mobile {
        align-items: center;
    }
}

/* Grid utilities for responsive */
@media (max-width: 768px) {
    .grid-1-mobile {
        grid-template-columns: 1fr;
    }
    
    .grid-2-mobile {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========================================
   9. DROPDOWN SPECIFIC STYLES
   ======================================== */
/* Desktop dropdown hover */
@media (min-width: 992px) {
    .dropdown {
        position: relative;
    }
    
    .dropdown-menu {
        position: absolute;
        top: 100%;
        left: 0;
        min-width: 220px;
        background: white;
        border-radius: 10px;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        padding: 10px 0;
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        transition: all 0.3s ease;
        z-index: 1000;
        border: 1px solid #e2e8f0;
        list-style: none;
    }
    
    .dropdown:hover .dropdown-menu {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }
    
    .dropdown-toggle i {
        transition: transform 0.3s ease;
    }
    
    .dropdown:hover .dropdown-toggle i {
        transform: rotate(180deg);
    }
}

/* Image responsiveness */
img {
    max-width: 100%;
    height: auto;
}

/* Video responsiveness */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
}

.video-container iframe,
.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}