:root {
    --primary: #04fc42;
    --primary-dark: #03c734;
    --primary-light: #e0ffe8;
    --primary-extra-light: #f5fff7;
    --text-dark: #1a1a1a;
    --text-medium: #4a4a4a;
    --text-light: #777;
    --bg-light: #f9f9f9;
    --bg-dark: #1a1a1a;
    --border-color: #e0e0e0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    --premium-gradient: linear-gradient(135deg, #8A2BE2 0%, #4B0082 100%);
    --gold: #FFD700;
    --silver: #C0C0C0;
}

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

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    background-color: #fff;
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-dark);
}

h1 {
    font-size: 2.2rem;
    font-weight: 800;
}

h2 {
    font-size: 1.8rem;
}

h3 {
    font-size: 1.4rem;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* Course icons */
.course-icon {
    font-size: 1.8rem;
    margin-bottom: 10px;
    transition: var(--transition);
}

.html-icon { color: #E44D26; }
.css-icon { color: #2965F1; }
.js-icon { color: #F0DB4F; }
.php-icon { color: #777BB4; }
.cpp-icon { color: #00599C; }
.python-icon { color: #3776AB; }
.java-icon { color: #5382A1; }
.ts-icon { color: #3178C6; }
.csharp-icon { color: #239120; }
.forex-icon { color: #16C784; }

/* ===== Preloader ===== */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(4, 252, 66, 0.1);
    border-top-color: var(--primary);
    border-radius: 50%;
    margin-bottom: 1.5rem;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 2rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
}

.navbar.scrolled {
    height: 70px;
    box-shadow: var(--shadow-md);
}

.navbar-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

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

.nav-menu {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: var(--primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary);
    transition: width 0.3s ease;
    border-radius: 3px;
}

.nav-link:hover::after {
    width: 100%;
}

.courses-dropdown {
    position: relative;
}

.courses-btn {
    background: var(--primary-light);
    color: var(--primary-dark);
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.courses-btn:hover {
    background: var(--primary);
    color: white;
    box-shadow: 0 5px 15px rgba(4, 252, 66, 0.3);
    transform: translateY(-2px);
}

.dropdown-content {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    background: white;
    min-width: 250px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-md);
    padding: 0.5rem 0;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    transform: translateY(10px);
}

.courses-dropdown:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    padding: 0.8rem 1.5rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

.dropdown-item:hover {
    background: var(--primary-extra-light);
    color: var(--primary-dark);
    padding-left: 1.7rem;
}

.dropdown-item i {
    margin-right: 0.8rem;
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

.menu-toggle {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--text-dark);
    background: none;
    border: none;
    transition: var(--transition);
}

.menu-toggle:hover {
    color: var(--primary);
}

/* ===== Premium Course Navigation ===== */
.course-navigation {
    position: sticky;
    top: 80px;
    background: white;
    z-index: 900;
    padding: 1rem 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid var(--border-color);
}

.course-nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: center;
    justify-content: space-between;
}

.course-category {
    position: relative;
}

.category-btn {
    background: var(--primary-light);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    font-weight: 600;
    color: var(--primary-dark);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.category-btn:hover {
    background: var(--primary);
    color: white;
    box-shadow: 0 5px 15px rgba(4, 252, 66, 0.3);
}

.category-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-md);
    padding: 1rem 0;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    transform: translateY(10px);
}

.course-category:hover .category-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.category-item {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.category-item:hover {
    background: var(--primary-extra-light);
    color: var(--primary-dark);
    padding-left: 1.8rem;
}

.course-levels {
    display: flex;
    gap: 0.5rem;
}

.level-btn {
    background: transparent;
    border: 2px solid var(--primary-light);
    padding: 0.6rem 1.2rem;
    border-radius: 30px;
    font-weight: 600;
    color: var(--text-medium);
    cursor: pointer;
    transition: var(--transition);
}

.level-btn:hover, .level-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.course-search {
    position: relative;
}

.search-input {
    padding: 0.8rem 1.5rem 0.8rem 3rem;
    border: 2px solid var(--primary-light);
    border-radius: 30px;
    font-size: 0.95rem;
    width: 250px;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(4, 252, 66, 0.2);
}

.search-icon {
    position: absolute;
    left: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

/* ===== Sidebar ===== */
.sidebar {
    position: fixed;
    left: 0;
    top: 80px;
    bottom: 0;
    width: 250px;
    background: rgba(255, 255, 255, 0.98);
    overflow-y: auto;
    padding: 1.5rem 0;
    box-shadow: 2px 0 15px rgba(0, 0, 0, 0.05);
    z-index: 999;
    transition: transform 0.3s ease;
    backdrop-filter: blur(8px);
    border-right: 1px solid var(--border-color);
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1.5rem;
    margin: 0.3rem 1rem;
    border-radius: var(--border-radius-sm);
    color: var(--text-medium);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    position: relative;
}

.sidebar-item:hover {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    transform: translateX(5px);
}

.sidebar-item.active {
    background-color: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 600;
    box-shadow: inset 3px 0 0 var(--primary);
}

.sidebar-item i {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

.progress-indicator {
    position: absolute;
    right: 1rem;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    color: var(--primary-dark);
    font-weight: 600;
}

.sidebar-item.completed .progress-indicator {
    background: var(--primary);
    color: white;
}

/* ===== Main Content ===== */
.content-wrapper {
    margin-left: 250px;
    padding-top: 100px;
    transition: margin-left 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.course-module {
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 3rem;
    background: #fff;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.5rem;
    animation: fadeIn 0.5s ease;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.course-module::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary);
    transition: var(--transition);
}

.course-module:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.course-module:hover::before {
    width: 8px;
}

.course-three {
    flex: 1 1 300px;
    padding: 1rem;
}

.course-three h1 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-dark);
    position: relative;
    padding-bottom: 0.5rem;
}

.course-three h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}

.course-three h3 {
    font-size: 1rem;
    color: var(--text-medium);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.difficulty {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 600;
    margin-top: 0.5rem;
}

.module-icon {
    width: 120px;
    height: 120px;
    margin: 1.5rem auto;
    display: block;
    object-fit: contain;
    filter: drop-shadow(0 5px 10px rgba(0, 0, 0, 0.1));
    transition: var(--transition);
}

.course-module:hover .module-icon {
    transform: scale(1.05) rotate(5deg);
}

.course-one {
    flex: 2 1 600px;
    padding: 1rem;
}

.course-one h1 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.course-one h1::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}

.course-one p {
    color: var(--text-medium);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.7;
}

/* ===== Interactive Code Editor Styles ===== */
.code-editor-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--bg-dark);
    color: white;
    padding: 0.7rem 1.2rem;
}

.editor-tabs {
    display: flex;
    gap: 0.5rem;
}

.editor-tab {
    padding: 0.4rem 0.9rem;
    background: #2a2a2a;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    transition: var(--transition);
}

.editor-tab.active {
    background: var(--primary);
    color: #000;
}

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

.editor-actions button {
    background: rgba(255, 255, 255, 0.1);
    border: none;
    color: white;
    cursor: pointer;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.editor-actions button:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--primary);
}

.code-editor {
    width: 100%;
    min-height: 250px;
    background: #1e1e1e;
    color: #d4d4d4;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
    padding: 1.2rem;
    border: none;
    outline: none;
    tab-size: 2;
    resize: vertical;
}

.preview-container {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    margin-top: 1rem;
    min-height: 200px;
    background: white;
}

.run-btn {
    background: var(--primary);
    color: #000;
    border: none;
    padding: 0.8rem 1.8rem;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 1rem;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    box-shadow: 0 4px 10px rgba(4, 252, 66, 0.3);
}

.run-btn:hover {
    background: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(4, 252, 66, 0.4);
}

.output-title {
    font-size: 0.9rem;
    color: var(--text-medium);
    margin: 1.5rem 0 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.output-title i {
    color: var(--primary);
}

.course-five {
    background: var(--primary-extra-light);
    padding: 1.8rem;
    border-radius: var(--border-radius-md);
    margin-top: 2rem;
    border-left: 4px solid var(--primary);
}

.course-five h3 {
    color: var(--primary-dark);
    margin-bottom: 1.2rem;
    font-size: 1.2rem;
}

.course-five ul, .course-five ol {
    padding-left: 1.2rem;
    margin-bottom: 1rem;
}

.course-five li {
    margin-bottom: 0.7rem;
    color: var(--text-medium);
    line-height: 1.6;
}

.course-five code {
    background: rgba(4, 252, 66, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--primary-dark);
    border: 1px solid rgba(4, 252, 66, 0.2);
}

/* Premium Quality Badge */
.premium-badge {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--premium-gradient);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 30px;
    font-size: 0.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 10px rgba(138, 43, 226, 0.3);
    z-index: 10;
    animation: pulse 2s infinite;
}

/* ===== Premium Subscription Section ===== */
.premium-subscription {
    background: var(--premium-gradient);
    color: white;
    text-align: center;
    padding: 5rem 2rem;
    margin: 5rem 0;
    border-radius: var(--border-radius-lg);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.premium-subscription::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.premium-subscription::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 250px;
    height: 250px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.premium-subscription h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.premium-subscription p {
    max-width: 700px;
    margin: 0 auto 2.5rem;
    font-size: 1.2rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

.premium-features {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.premium-feature {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    width: 250px;
    transition: var(--transition);
}

.premium-feature:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.premium-feature i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--gold);
}

.premium-feature h3 {
    color: white;
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.premium-feature p {
    font-size: 0.95rem;
    margin: 0;
}

.premium-cta-btn {
    background: white;
    color: #8A2BE2;
    border: none;
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    animation: float 3s ease-in-out infinite;
}

.premium-cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    animation: none;
}

.pricing-options {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
    position: relative;
    z-index: 1;
}

.pricing-option {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    width: 280px;
    transition: var(--transition);
    border: 2px solid transparent;
}

.pricing-option:hover {
    transform: translateY(-5px);
    border-color: var(--gold);
}

.pricing-option h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.price {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--gold);
}

.price span {
    font-size: 1rem;
    font-weight: 400;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pricing-features li i {
    color: var(--gold);
}

.pricing-btn {
    background: var(--gold);
    color: #000;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.pricing-btn:hover {
    background: white;
    transform: translateY(-2px);
}

/* ===== Footer Styles ===== */
footer {
    background: var(--bg-dark);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.footer-column h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary);
    border-radius: 3px;
}

.footer-column p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
    color: #ccc;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.footer-links a:hover {
    color: var(--primary);
    padding-left: 0.5rem;
}

.footer-links i {
    font-size: 0.8rem;
    color: var(--primary);
}

.footer-bottom {
    max-width: 1200px;
    margin: 2rem auto 0;
    padding: 1.5rem 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #999;
    font-size: 0.9rem;
}

/* ==================== */
/* FIXED MOBILE MEDIA QUERIES */
/* ==================== */

/* Large Tablets and Small Laptops */
@media (max-width: 1200px) {
    .sidebar {
        width: 220px;
    }
    
    .content-wrapper {
        margin-left: 220px;
    }
    
    .course-nav-container {
        justify-content: center;
    }
    
    .course-search {
        display: none;
    }
}

/* Tablets and Large Phones - FIXED */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        width: 100%;
        top: 70px;
        z-index: 998;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .content-wrapper {
        margin-left: 0;
        padding-top: 140px;
        width: 100%;
        overflow-x: hidden;
    }
    
    .navbar-container {
        padding: 0 1.5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        align-items: flex-start;
        padding: 1.5rem 2rem;
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 997;
        gap: 1rem;
        backdrop-filter: blur(8px);
    }
    
    .nav-menu.active {
        transform: translateY(0);
    }
    
    .courses-dropdown {
        width: 100%;
    }
    
    .dropdown-content {
        position: static;
        box-shadow: none;
        opacity: 1;
        visibility: visible;
        transform: none;
        display: none;
        width: 100%;
        background: transparent;
        padding: 0.5rem 0 0 1rem;
    }
    
    .courses-dropdown:hover .dropdown-content {
        display: block;
    }
    
    .dropdown-item {
        padding: 0.7rem 1rem;
    }
    
    .menu-toggle {
        display: block;
    }

    .course-module {
        padding: 1.8rem;
        margin: 1rem;
        width: calc(100% - 2rem);
    }
    
    .course-navigation {
        top: 70px;
        padding: 0.8rem 0;
        position: fixed;
        width: 100%;
        z-index: 996;
    }
    
    .course-nav-container {
        flex-direction: column;
        gap: 1rem;
        padding: 0 1.5rem;
    }
    
    .course-levels {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.5rem;
    }
    
    .level-btn {
        flex: 1;
        min-width: 120px;
        text-align: center;
        padding: 0.8rem 0.5rem;
        font-size: 0.9rem;
    }
    
    .pricing-options {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .pricing-option {
        width: 100%;
        max-width: 400px;
    }
    
    .premium-features {
        gap: 1.5rem;
    }
    
    .premium-feature {
        width: calc(50% - 1rem);
        min-width: 200px;
    }

    .container {
        padding: 0;
        width: 100%;
        max-width: 100%;
    }
}

/* Small Tablets and Large Phones - FIXED */
@media (max-width: 768px) {
    .container {
        padding: 0;
        width: 100%;
    }
    
    .navbar {
        padding: 0 1rem;
        height: 70px;
    }
    
    .logo {
        font-size: 1.4rem;
    }
    
    .course-module {
        flex-direction: column;
        padding: 1.5rem;
        margin: 1rem;
        width: calc(100% - 2rem);
        gap: 1.5rem;
    }
    
    .course-three, .course-one {
        flex: 1 1 100%;
        padding: 0.5rem;
        width: 100%;
    }
    
    .course-three h1, .course-one h1 {
        font-size: 1.5rem;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .module-icon {
        width: 80px;
        height: 80px;
        margin: 1rem auto;
    }
    
    .code-editor-container {
        margin: 1.5rem 0;
        width: 100%;
    }
    
    .editor-header {
        flex-wrap: wrap;
        gap: 0.5rem;
        padding: 0.7rem;
    }
    
    .editor-tabs, .editor-actions {
        width: 100%;
        justify-content: center;
    }
    
    .code-editor {
        font-size: 13px;
        padding: 1rem;
        min-height: 200px;
        width: 100%;
    }
    
    .premium-subscription {
        padding: 3rem 1rem;
        margin: 3rem 1rem;
        width: calc(100% - 2rem);
        border-radius: 12px;
    }
    
    .premium-subscription h2 {
        font-size: 1.8rem;
        padding: 0 1rem;
    }
    
    .premium-subscription p {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .premium-features {
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .premium-feature {
        width: 100%;
        max-width: 100%;
        margin: 0 1rem;
    }
    
    .premium-cta-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
        width: 90%;
        max-width: 300px;
        margin: 0 auto;
    }
    
    .course-five {
        padding: 1.2rem;
        margin: 1rem 0;
        width: 100%;
    }
    
    .category-btn {
        padding: 0.8rem 1rem;
        font-size: 0.9rem;
        width: 100%;
        justify-content: center;
    }
    
    .level-btn {
        padding: 0.6rem 0.8rem;
        font-size: 0.8rem;
        min-width: 100px;
    }
    
    .price {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .footer-column h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .social-links {
        justify-content: center;
    }
    
    .premium-badge {
        position: relative;
        top: auto;
        right: auto;
        margin: 0 auto 1rem auto;
        width: fit-content;
        display: block;
    }

    .course-one p {
        font-size: 1rem;
        line-height: 1.6;
        word-wrap: break-word;
    }

    .course-five li {
        font-size: 0.9rem;
        line-height: 1.5;
    }
}

/* Mobile Phones - COMPLETELY FIXED */
@media (max-width: 480px) {
    .container {
        padding: 0;
        width: 100%;
        overflow-x: hidden;
    }
    
    .navbar {
        padding: 0 0.8rem;
        height: 60px;
    }
    
    .navbar-container {
        padding: 0;
    }
    
    .logo {
        font-size: 1.2rem;
    }
    
    .logo i {
        font-size: 1.1rem;
    }
    
    .course-navigation {
        top: 60px;
        padding: 0.6rem 0;
    }
    
    .course-nav-container {
        padding: 0 0.8rem;
        gap: 0.8rem;
    }
    
    .course-levels {
        gap: 0.3rem;
    }
    
    .level-btn {
        padding: 0.5rem 0.6rem;
        font-size: 0.75rem;
        min-width: 80px;
    }
    
    .course-module {
        padding: 1.2rem;
        margin: 0.8rem;
        width: calc(100% - 1.6rem);
        border-radius: 12px;
    }
    
    .course-three h1, .course-one h1 {
        font-size: 1.3rem;
        line-height: 1.3;
        margin-bottom: 0.8rem;
    }
    
    .course-three h3 {
        font-size: 0.9rem;
        line-height: 1.4;
    }
    
    .module-icon {
        width: 70px;
        height: 70px;
    }
    
    .course-one p {
        font-size: 0.95rem;
        line-height: 1.6;
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .code-editor {
        font-size: 12px;
        padding: 0.8rem;
        min-height: 180px;
        width: 100%;
    }
    
    .editor-header {
        padding: 0.5rem;
    }
    
    .editor-tab {
        padding: 0.3rem 0.6rem;
        font-size: 0.7rem;
    }
    
    .editor-actions button {
        padding: 0.3rem 0.5rem;
        font-size: 0.7rem;
    }
    
    .run-btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.85rem;
        width: 100%;
    }
    
    .preview-container {
        padding: 1rem;
        min-height: 150px;
        width: 100%;
    }
    
    .premium-subscription {
        padding: 2rem 0.8rem;
        margin: 2rem 0.8rem;
        width: calc(100% - 1.6rem);
    }
    
    .premium-subscription h2 {
        font-size: 1.5rem;
        line-height: 1.3;
        padding: 0 0.5rem;
    }
    
    .premium-subscription p {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
        padding: 0 0.5rem;
    }
    
    .premium-feature {
        padding: 1rem;
        margin: 0.5rem;
    }
    
    .premium-feature i {
        font-size: 1.8rem;
    }
    
    .premium-feature h3 {
        font-size: 1rem;
    }
    
    .premium-feature p {
        font-size: 0.85rem;
    }
    
    .pricing-option {
        padding: 1.2rem;
        margin: 0.5rem;
    }
    
    .price {
        font-size: 1.6rem;
    }
    
    .pricing-btn {
        padding: 0.7rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .course-five {
        padding: 1rem;
        margin: 1rem 0;
    }
    
    .course-five h3 {
        font-size: 1.1rem;
    }
    
    .course-five li {
        font-size: 0.85rem;
        line-height: 1.4;
        margin-bottom: 0.5rem;
    }
    
    .footer-content {
        padding: 0 0.8rem;
    }
    
    .footer-bottom {
        padding: 1rem 0.8rem 0;
        font-size: 0.8rem;
    }
    
    .sidebar {
        width: 100%;
        top: 60px;
    }
    
    .sidebar-item {
        padding: 0.7rem 1rem;
        margin: 0.2rem 0.5rem;
        font-size: 0.9rem;
    }

    .content-wrapper {
        padding-top: 130px;
    }

    /* Ensure no horizontal scrolling */
    html, body {
        max-width: 100%;
        overflow-x: hidden;
    }

    * {
        max-width: 100%;
    }
}

/* Very Small Mobile Phones - EXTRA FIXES */
@media (max-width: 360px) {
    .navbar {
        padding: 0 0.5rem;
        height: 55px;
    }
    
    .logo {
        font-size: 1.1rem;
    }
    
    .menu-toggle {
        font-size: 1.1rem;
    }
    
    .course-navigation {
        top: 55px;
    }
    
    .content-wrapper {
        padding-top: 120px;
    }
    
    .container {
        padding: 0;
    }
    
    .course-module {
        padding: 1rem;
        margin: 0.5rem;
        width: calc(100% - 1rem);
    }
    
    .course-three h1, .course-one h1 {
        font-size: 1.1rem;
    }
    
    .module-icon {
        width: 60px;
        height: 60px;
    }
    
    .level-btn {
        padding: 0.4rem 0.5rem;
        font-size: 0.7rem;
        min-width: 70px;
    }
    
    .code-editor {
        font-size: 11px;
        padding: 0.6rem;
    }
    
    .premium-subscription h2 {
        font-size: 1.3rem;
    }
    
    .premium-cta-btn {
        padding: 0.8rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .price {
        font-size: 1.4rem;
    }

    .course-one p {
        font-size: 0.9rem;
    }
}

/* Landscape Mode for Mobile */
@media (max-height: 500px) and (orientation: landscape) {
    .navbar {
        height: 55px;
    }
    
    .sidebar {
        top: 55px;
    }
    
    .content-wrapper {
        padding-top: 115px;
    }
    
    .course-navigation {
        top: 55px;
        padding: 0.4rem 0;
    }
    
    .premium-subscription {
        padding: 1.5rem 1rem;
    }
    
    .code-editor {
        min-height: 120px;
    }
    
    .course-module {
        padding: 1rem;
    }
}

/* Fix for very specific mobile issues */
@media (max-width: 320px) {
    .course-three h1, .course-one h1 {
        font-size: 1rem;
    }
    
    .course-one p {
        font-size: 0.85rem;
    }
    
    .level-btn {
        font-size: 0.65rem;
        padding: 0.3rem 0.4rem;
        min-width: 60px;
    }
    
    .premium-subscription h2 {
        font-size: 1.1rem;
    }
}

/* Ensure all content is visible and readable */
html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Prevent horizontal scrolling */
* {
    box-sizing: border-box;
    max-width: 100%;
}

img, video, canvas {
    max-width: 100%;
    height: auto;
}