:root {
    --primary-color: #ff7b00;
    --secondary-color: #2c3e50;
    --text-color: #f8f9fa;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --card-hover: #2d2d2d;
    --modal-bg: rgba(0, 0, 0, 0.9);
    --nav-bg: rgba(18, 18, 18, 0);
    --shadow-color: rgba(0, 0, 0, 0.5);
    --instructor-bg: #2a2a2a;
}

.light-mode {
    --text-color: #333;
    --bg-color: #f8f9fa;
    --card-bg: #ffffff;
    --card-hover: #f1f1f1;
    --modal-bg: rgba(255, 255, 255, 0.95);
    --nav-bg: rgba(248, 249, 250, 0);
    --shadow-color: rgba(0, 0, 0, 0.1);
    --instructor-bg: #e9ecef;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s, transform 0.3s;
}

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

section {
    min-height: 100vh;
    padding: 80px 20px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Navigation - Transparent background */
nav {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: var(--nav-bg);
    backdrop-filter: blur(5px);
    border-radius: 50px;
    padding: 10px 20px;
    z-index: 1000;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 15px;
}

nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 50px;
    font-weight: 500;
    transition: background-color 0.3s;
}

nav a:hover, nav a.active {
    background-color: var(--primary-color);
}

.sign-in-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 50px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.sign-in-btn:hover {
    background-color: #e56d00;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1.2rem;
    margin-left: 10px;
    padding: 5px 10px;
    border-radius: 50%;
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 10px;
    transition: all 0.3s linear;
    position: relative;
    transform-origin: 1px;
}

/* Side Menu */
.side-menu {
    position: fixed;
    top: 0;
    right: -300px;
    width: 300px;
    height: 100vh;
    background-color: var(--card-bg);
    z-index: 1001;
    padding: 80px 20px 20px;
    transition: right 0.3s ease;
    box-shadow: -5px 0 15px var(--shadow-color);
    overflow-y: auto;
}

.side-menu.open {
    right: 0;
}

.side-menu ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.side-menu a {
    display: block;
    color: var(--text-color);
    text-decoration: none;
    padding: 12px 15px;
    border-radius: 8px;
    font-weight: 500;
    transition: background-color 0.3s;
}

.side-menu a:hover, .side-menu a.active {
    background-color: var(--primary-color);
}

.side-menu .sign-in-btn {
    width: 100%;
    margin-top: 10px;
}

.close-menu {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Overlay for when menu is open */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
}

.overlay.active {
    display: block;
}

/* Social Media Pull-out Menu */
.social-menu {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 999;
}

.social-toggle {
    position: absolute;
    right: 0;
    top: 0;
    background-color: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50% 0 0 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transform: translateX(30px);
    transition: transform 0.3s;
}

.social-icons {
    background-color: var(--card-bg);
    border-radius: 10px 0 0 10px;
    padding: 15px 5px;
    box-shadow: -3px 3px 10px var(--shadow-color);
    transform: translateX(100%);
    transition: transform 0.3s;
}

.social-menu.open .social-icons {
    transform: translateX(0);
}

.social-menu.open .social-toggle {
    transform: translateX(0);
}

.social-icons a {
    display: block;
    text-align: center;
    color: var(--text-color);
    font-size: 1.5rem;
    margin: 15px 10px;
    transition: color 0.3s;
}

.social-icons a:hover {
    color: var(--primary-color);
}

/* Home Section */
#home {
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1547866751-446296f133ce?ixlib=rb-4.0.3') center/cover no-repeat;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.home-content {
    max-width: 800px;
}

#home h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: #fff;
}

#home p {
    font-size: 1.5rem;
    margin-bottom: 30px;
    color: #fff;
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Services Section */
#services h2, #testimonials h2, #about h2, #contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 40px;
    color: var(--primary-color);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.service-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.service-card:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 30px var(--shadow-color);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-bg);
    z-index: 2000;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-color);
}

/* Testimonials Section */
.testimonial-cards {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
    margin-bottom: 40px;
}

.testimonial-card {
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 5px 15px var(--shadow-color);
    display: flex;
    flex-direction: column;
}

.testimonial-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.testimonial-img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 20px;
    border: 3px solid var(--primary-color);
}

.testimonial-info h3 {
    font-size: 1.4rem;
    margin-bottom: 5px;
}

.testimonial-info p {
    color: var(--primary-color);
    font-weight: 500;
}

.testimonial-quote {
    font-style: italic;
    margin-bottom: 20px;
    flex-grow: 1;
    font-size: 1.1rem;
    line-height: 1.7;
}

.testimonial-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    align-self: flex-end;
}

.testimonial-list {
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-item {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 3px 10px var(--shadow-color);
    font-size: 1.1rem;
}

/* About Section */
.instructors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.instructor-card {
    background-color: var(--instructor-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color);
    text-align: center;
}

.instructor-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.instructor-info {
    padding: 20px;
}

.instructor-info h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.instructor-info p {
    margin-bottom: 15px;
}

.instructor-stats {
    display: flex;
    justify-content: space-around;
    border-top: 1px solid var(--card-hover);
    padding-top: 15px;
    margin-top: 15px;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.9rem;
}

/* Contact Section */
.contact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
}

.map-container {
    flex: 1;
    min-width: 300px;
    height: 300px;
    border-radius: 15px;
    overflow: hidden;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.contact-details {
    flex: 1;
    min-width: 300px;
    background-color: var(--card-bg);
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.contact-details h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-info {
    margin-bottom: 25px;
}

.contact-info p {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.contact-info i {
    margin-right: 10px;
    color: var(--primary-color);
    width: 20px;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background-color: var(--card-bg);
    margin-top: 40px;
}

/* Responsive Design */
@media (max-width: 992px) {
    nav ul {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    nav {
        display: flex;
        align-items: center;
        justify-content: flex-end;
    }
}

@media (max-width: 768px) {
    nav {
        top: 10px;
        right: 10px;
        left: 10px;
        text-align: center;
    }
    
    #home h1 {
        font-size: 2.5rem;
    }
    
    #home p {
        font-size: 1.2rem;
    }
    
    .service-card {
        padding: 20px;
    }
    
    .testimonial-header {
        flex-direction: column;
        text-align: center;
    }
    
    .testimonial-img {
        margin-right: 0;
        margin-bottom: 15px;
    }
    
    .social-menu {
        top: auto;
        bottom: 20px;
        transform: none;
    }
}

@media (max-width: 480px) {
    section {
        padding: 70px 15px 30px;
    }
    
    #home h1 {
        font-size: 2rem;
    }
    
    #home p {
        font-size: 1rem;
    }
    
    .btn {
        padding: 10px 25px;
        font-size: 1rem;
    }
    
    .instructor-info {
        padding: 15px;
    }
    
    .side-menu {
        width: 250px;
    }
}
/* Login and Form Styles */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1547866751-446296f133ce?ixlib=rb-4.0.3') center/cover no-repeat;
}

.login-form {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px var(--shadow-color);
    width: 100%;
    max-width: 400px;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.login-form p {
    margin-bottom: 20px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--card-hover);
    border-radius: 5px;
    background-color: var(--bg-color);
    color: var(--text-color);
}

.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

.login-links {
    margin-top: 20px;
    text-align: center;
}

.login-links a {
    color: var(--primary-color);
    text-decoration: none;
    margin: 0 10px;
}

.login-links a:hover {
    text-decoration: underline;
}

.error {
    background-color: #ffcccc;
    color: #d8000c;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
    border-left: 4px solid #d8000c;
}

.success {
    background-color: #ddffdd;
    color: #270;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 20px;
    border-left: 4px solid #270;
}

/* Dashboard Styles */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 10px var(--shadow-color);
}

.stat-card h3 {
    margin-bottom: 10px;
    font-size: 1rem;
    color: var(--primary-color);
}

.stat-number {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary-color);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.dashboard-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow-color);
}

.dashboard-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

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

.lesson-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--card-hover);
}

.lesson-list li:last-child {
    border-bottom: none;
}

.lesson-info {
    flex: 1;
}

.lesson-info strong {
    display: block;
    margin-bottom: 5px;
}

.lesson-info span {
    display: block;
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 2px;
}

.card-footer {
    margin-top: 15px;
    display: flex;
    gap: 10px;
}

/* Table Styles */
.card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow-color);
    margin-bottom: 20px;
}

.card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.filters {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.filters input,
.filters select {
    padding: 8px 12px;
    border: 1px solid var(--card-hover);
    border-radius: 5px;
    background-color: var(--bg-color);
    color: var(--text-color);
}

.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--card-hover);
}

.data-table th {
    background-color: var(--card-hover);
    font-weight: 600;
}

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

.btn-small {
    display: inline-block;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 0.8rem;
    border: none;
    cursor: pointer;
}

.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
}

/* Profile Styles */
.profile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.profile-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px var(--shadow-color);
}

.profile-card h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

/* Form Styles */
.user-form,
.lesson-form {
    margin-bottom: 20px;
}

.form-actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
}

/* Calendar Styles */
#calendar-container {
    height: 600px;
}

.lesson-detail {
    margin-bottom: 20px;
}

.info-row {
    margin-bottom: 10px;
    padding: 10px;
    background-color: var(--card-hover);
    border-radius: 5px;
}

.status-attended {
    color: #28a745;
    font-weight: bold;
}

.status-missed {
    color: #dc3545;
    font-weight: bold;
}

.status-upcoming {
    color: #007bff;
    font-weight: bold;
}

.lesson-actions {
    margin-top: 20px;
    display: flex;
    gap: 10px;
}

/* User Menu Styles */
.user-menu {
    position: relative;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--card-bg);
    border-radius: 5px;
    box-shadow: 0 3px 10px var(--shadow-color);
    padding: 10px;
    min-width: 150px;
    display: none;
    z-index: 1000;
}

.user-menu:hover .user-dropdown {
    display: block;
}

.user-dropdown a {
    display: block;
    padding: 8px 10px;
    color: var(--text-color);
    text-decoration: none;
    border-radius: 3px;
}

.user-dropdown a:hover {
    background-color: var(--primary-color);
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .form-row .form-group {
        margin-bottom: 15px;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .profile-grid {
        grid-template-columns: 1fr;
    }
    
    .filters {
        flex-direction: column;
    }
    
    .data-table {
        font-size: 0.9rem;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px 10px;
    }
    
    .lesson-list li {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .card-footer {
        flex-direction: column;
    }
}