@import url('variables.css');

/* ===== Reset and Base Styles ===== */

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

body {
    font-family: var(--font-primary);
    background-color: var(--white);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.6;
    color: var(--text-color);
    scroll-behavior: smooth;
}

a {
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition-fast);
}

img {
    max-width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}


/* ===== Active Navigation States ===== */

.nav-Home.active,
.nav-Courses.active,
.nav-Quizzes.active,
.nav-Support.active {
    color: var(--primary-color);
    font-weight: 600;
    position: relative;
}

.nav-Home.active::after,
.nav-Courses.active::after,
.nav-Quizzes.active::after,
.nav-Support.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 2px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}


/* ===== Animation Classes ===== */

.fade-in {
    opacity: 1;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ===== Home Section ===== */

.home {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 100vh;
    padding: 8rem 5% 5rem 5%;
    gap: 3rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--white) 0%, var(--light-bg) 100%);
}

.home::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(5, 89, 207, 0.1) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 8s infinite alternate;
}

.home::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(11, 129, 202, 0.1) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 6s infinite alternate-reverse;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }
    100% {
        transform: scale(1.2);
        opacity: 0.8;
    }
}

.home .left {
    flex: 1;
    position: relative;
    z-index: 1;
}

.home .left::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 5px;
    height: 120px;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
    border-radius: 5px;
}

.home .left h1 {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    margin-bottom: 1rem;
    line-height: 1.2;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
}

.home .left h1 span {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.home .left h1 span::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    animation: slideIn 1s ease forwards;
}

@keyframes slideIn {
    from {
        width: 0;
    }
    to {
        width: 100%;
    }
}

.home .left h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 2rem;
    color: var(--text-color);
    font-weight: 600;
}

.home .left .search {
    display: flex;
    align-items: center;
    background-color: var(--white);
    padding: 1rem;
    border: 2px solid transparent;
    border-radius: 50px;
    box-shadow: var(--shadow-medium);
    transition: var(--transition-fast);
    margin-top: 2rem;
    position: relative;
    overflow: hidden;
}

.home .left .search::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(5, 89, 207, 0.05), transparent);
    transition: left 0.6s ease;
}

.home .left .search:hover::before {
    left: 100%;
}

.home .left .search:hover {
    box-shadow: var(--shadow-heavy);
    transform: translateY(-3px);
    border-color: var(--primary-light);
}

.home .left .search input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1.1rem;
    margin-left: 1rem;
    background-color: transparent;
    color: var(--text-color);
}

.home .left .search input::placeholder {
    color: var(--text-light);
}

.home .left .search .search-icon {
    background: none;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.home .left .search .search-icon i {
    color: var(--white);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 12px;
    font-size: 1.1rem;
    border-radius: var(--border-radius-circle);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    z-index: 1;
}

.home .left .search .search-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
    border-radius: 50%;
    transform: scale(0);
    transition: transform 0.3s ease;
    z-index: 0;
}

.home .left .search .search-icon:hover::before {
    transform: scale(1);
}

.home .left .search .search-icon:hover i {
    transform: scale(1.1) rotate(15deg);
}

.home .right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.home .right a {
    position: relative;
    display: inline-block;
    overflow: visible;
}

.home .right a::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(255, 105, 105, 0.2) 0%, transparent 70%);
    z-index: 1;
    opacity: 0;
    animation: pulseHalo 2s ease-in-out infinite;
}

.home .right img {
    width: 100%;
    max-width: 600px;
    position: relative;
    z-index: 2;
    transition: var(--transition-medium);
    border-radius: var(--border-radius-lg);
    filter: drop-shadow(0 15px 35px rgba(255, 105, 105, 0.3));
    animation: realHeartBeat 2s ease-in-out infinite;
}

.home .right img:hover {
    filter: drop-shadow(0 20px 40px rgba(255, 105, 105, 0.4));
    transform: scale(1.02);
}

@keyframes realHeartBeat {
    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 15px 35px rgba(255, 105, 105, 0.3));
    }
    15% {
        transform: scale(1.05);
        filter: drop-shadow(0 18px 38px rgba(255, 105, 105, 0.4));
    }
    30% {
        transform: scale(1);
        filter: drop-shadow(0 15px 35px rgba(255, 105, 105, 0.3));
    }
    45% {
        transform: scale(1.03);
        filter: drop-shadow(0 17px 37px rgba(255, 105, 105, 0.35));
    }
    60% {
        transform: scale(1);
        filter: drop-shadow(0 15px 35px rgba(255, 105, 105, 0.3));
    }
}

@keyframes pulseHalo {
    0%,
    100% {
        opacity: 0.2;
        transform: translate(-50%, -50%) scale(0.8);
    }
    15% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1.1);
    }
    30% {
        opacity: 0.2;
        transform: translate(-50%, -50%) scale(0.9);
    }
    45% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1.05);
    }
    60% {
        opacity: 0.2;
        transform: translate(-50%, -50%) scale(0.9);
    }
}


/* ===== About Section ===== */

.about {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4rem 3rem;
    margin: 4rem 0;
    background: linear-gradient(135deg, var(--light-bg) 0%, rgba(240, 248, 255, 0.8) 100%);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
    overflow: hidden;
    gap: 3rem;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(5, 89, 207, 0.08) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 8s infinite alternate;
}

.about::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(11, 129, 202, 0.08) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 6s infinite alternate-reverse;
}

.about .left {
    flex: 1;
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-medium);
}

.about .left::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(5, 89, 207, 0.05), transparent);
    z-index: 1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.about .left:hover::before {
    opacity: 1;
}

.about .left img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: var(--transition-slow);
    border-radius: var(--border-radius-md);
}

.about .left:hover img {
    transform: scale(1.05);
}

.about .right {
    flex: 1;
    padding: 2rem;
    position: relative;
}

.about .right::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100px;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
    border-radius: 4px;
}

.about .right h4 {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background-color: var(--text-light);
    color: var(--white);
    border-radius: var(--border-radius-xl);
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: center;
    position: relative;
    overflow: hidden;
    font-weight: 500;
    margin-bottom: 1rem;
}

.about .right h4::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 0.6s ease;
}

.about .right h4:hover::before {
    left: 100%;
}

.about .right h4:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transform: translateY(-3px);
    box-shadow: var(--shadow-light);
}

.about .right h1 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin: 1rem 0;
    line-height: 1.3;
    position: relative;
    color: var(--text-color);
}

.about .right h1 span {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-special);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.about .right h1 span::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 0.6s ease;
}

.about .right h1 span:hover::before {
    left: 100%;
}

.about .right h1 span:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.about .right p {
    color: var(--text-light);
    font-size: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about .right h3 {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.about .right h3 i {
    padding: 0.75rem;
    color: var(--white);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius-circle);
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 1.1rem;
}

.about .right h3 i:hover {
    transform: translateX(8px) rotate(15deg) scale(1.1);
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
    box-shadow: var(--shadow-medium);
}

.btn-primary {
    display: inline-block;
    padding: 0.75rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary::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 0.6s ease;
}

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

.btn-primary i {
    margin-left: 0.5rem;
    transition: var(--transition-fast);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
    transform: translateY(-3px);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover i {
    transform: translateX(5px);
}


/* ===== Video Section ===== */

.video {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4rem 3rem;
    margin-bottom: 6rem;
    background: linear-gradient(135deg, var(--secondary-color), #034D73);
    min-height: 70vh;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    gap: 3rem;
    position: relative;
}

.video::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    z-index: 0;
    animation: pulse 8s infinite alternate;
}

.video::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    z-index: 0;
    animation: pulse 6s infinite alternate-reverse;
}

.video .left {
    flex: 1;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

.video .left h1 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    color: var(--white);
    line-height: 1.4;
    position: relative;
    margin-bottom: 2rem;
}

.video .left h1::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 4px;
    height: 80px;
    background: linear-gradient(to bottom, var(--white), transparent);
    border-radius: 4px;
}

.video .left h1 span {
    color: var(--white);
    background-color: rgba(3, 77, 115, 0.8);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-special);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
    display: inline-block;
}

.video .left h1 span::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 0.6s ease;
}

.video .left h1 span:hover::before {
    left: 100%;
}

.video .left h1 span:hover {
    background-color: rgba(3, 77, 115, 1);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.video .left .video-btn {
    display: flex;
    gap: 1.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid var(--white);
    color: var(--white);
    padding: 0.75rem 2rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    transition: var(--transition-fast);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    display: inline-block;
    font-size: 1rem;
}

.btn-secondary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: var(--white);
    transition: left 0.4s ease;
    z-index: -1;
}

.btn-secondary:hover::before {
    left: 0;
}

.btn-secondary:hover {
    color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.video .right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 1;
}

.video .right img {
    width: 100%;
    max-width: 500px;
    border-radius: var(--border-radius-md);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    transition: var(--transition-medium);
}

.video .right img:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}


/* ===== Subjects Section ===== */

.subjects {
    padding: 0 5%;
    margin-bottom: 6rem;
    position: relative;
    overflow: hidden;
}


/* Background decorative elements */

.subjects::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(5, 89, 207, 0.05) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 8s infinite alternate;
}

.subjects::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(11, 129, 202, 0.05) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 6s infinite alternate-reverse;
}


/* Section heading */

.subjects h1 {
    font-size: clamp(2.5rem, 5vw, 3rem);
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    display: inline-block;
    width: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.subjects h1::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.subjects h1:hover::after {
    width: 150px;
}


/* Cards container */

.subjects .item {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}


/* Individual card styling */

.subjects .item .card {
    border-radius: var(--border-radius-lg);
    cursor: pointer;
    padding: 2rem 1.5rem 1.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    position: relative;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    background-color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.subjects .item .card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
    z-index: 0;
}

.subjects .item .card:hover::before {
    transform: translateX(100%);
}

.subjects .item .card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
    border-radius: inherit;
}

.subjects .item .card:hover {
    transform: translateY(-15px) scale(1.02);
}

.subjects .item .card:hover::after {
    opacity: 1;
}


/* Icon styling with fallback */

.subjects .item .card i {
    color: var(--white);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    /* Fallback for missing icons */
    font-family: 'Font Awesome 6 Free', 'Font Awesome 6 Pro', FontAwesome, sans-serif;
    font-weight: 900;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}


/* Icon animation effect */

.subjects .item .card i::before {
    position: relative;
    z-index: 1;
}

.subjects .item .card i::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transform: translateX(-100%) rotate(45deg);
    transition: transform 0.6s ease;
    z-index: 0;
    border-radius: 50%;
}

.subjects .item .card:hover i::after {
    transform: translateX(100%) rotate(45deg);
}

.subjects .item .card:hover i {
    transform: scale(1.15) rotate(10deg);
    filter: brightness(1.1);
}


/* Card color schemes with enhanced gradients */

.subjects .item .card-1 {
    background: linear-gradient(135deg, #eb0808 0%, #c83901 30%, #c90909 60%, #ae4d4d 100%);
    border-top: 3px solid #ebb935;
}

.subjects .item .card-1 i {
    background: linear-gradient(135deg, #ebb935, #d4a429, #c19625);
    box-shadow: 0 8px 25px rgba(235, 185, 53, 0.3);
}

.subjects .item .card-1 a {
    color: #ebb935;
}

.subjects .item .card-1:hover {
    background: linear-gradient(135deg, #FFF4D6 0%, #FEECBC 30%, #ebb935 100%);
}

.subjects .item .card-2 {
    background: linear-gradient(135deg, var(--primary-light) 0%, #E8F2FF 30%, var(--primary-light) 60%, #307BE2 100%);
    border-top: 3px solid #307BE2;
}

.subjects .item .card-2 i {
    background: linear-gradient(135deg, #307BE2, var(--primary-color), #0559CF);
    box-shadow: 0 8px 25px rgba(48, 123, 226, 0.3);
}

.subjects .item .card-2 a {
    color: #307BE2;
}

.subjects .item .card-2:hover {
    background: linear-gradient(135deg, #E8F2FF 0%, var(--primary-light) 30%, #307BE2 100%);
}

.subjects .item .card-3 {
    background: linear-gradient(135deg, #C8FFCB 0%, #DEFFE0 30%, #C8FFCB 60%, #1dd025 100%);
    border-top: 3px solid #64FF6B;
}

.subjects .item .card-3 i {
    background: linear-gradient(135deg, #64FF6B, #54e55a, #44d14a);
    box-shadow: 0 8px 25px rgba(100, 255, 107, 0.3);
}

.subjects .item .card-3 a {
    color: #64FF6B;
}

.subjects .item .card-3:hover {
    background: linear-gradient(135deg, #DEFFE0 0%, #C8FFCB 30%, #64FF6B 100%);
}


/* Card content */

.subjects .item .card .info {
    padding: 0;
    text-align: center;
    position: relative;
    z-index: 2;
}

.subjects .item .card .info h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
    color: var(--text-color);
    font-weight: 600;
    line-height: 1.3;
}

.subjects .item .card .info h2::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background-color: currentColor;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.subjects .item .card:hover .info h2::after {
    width: 80px;
}

.subjects .item .card .info p {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.subjects .item .card:hover .info p {
    opacity: 1;
}


/* Learn more button */

.subjects .item .card a.learn-more {
    display: inline-block;
    margin: 0;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    text-decoration: none;
    padding: 0.5rem 0;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.subjects .item .card a.learn-more::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: currentColor;
    transition: width 0.3s ease;
}

.subjects .item .card a.learn-more:hover::after {
    width: 100%;
}

.subjects .item .card a.learn-more:hover {
    transform: translateX(5px);
    letter-spacing: 1px;
}


/* Responsive design improvements */

@media (max-width: 768px) {
    .subjects {
        padding: 0 3%;
        margin-bottom: 4rem;
    }
    .subjects .item {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .subjects .item .card {
        padding: 1.5rem 1rem;
    }
    .subjects .item .card i {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .subjects h1 {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    .subjects .item .card {
        padding: 1rem;
    }
    .subjects .item .card i {
        width: 70px;
        height: 70px;
        font-size: 1.8rem;
    }
}


/* Animation for pulse effect */

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.7;
    }
    100% {
        transform: scale(1.1);
        opacity: 0.3;
    }
}


/* Ensure Font Awesome loads properly */

@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css');

/* Fallback for icons if Font Awesome fails to load */

.subjects .item .card i:empty::before {
    content: '⭐';
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 2rem;
}

.subjects .item .card-1 i:empty::before {
    content: '🎨';
}

.subjects .item .card-2 i:empty::before {
    content: '💻';
}

.subjects .item .card-3 i:empty::before {
    content: '📊';
}


/* ===== Learn Section ===== */

.learn {
    padding: 0 5%;
    margin-bottom: 6rem;
    position: relative;
}

.learn::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(5, 89, 207, 0.05) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 8s infinite alternate;
}

.learn::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(11, 129, 202, 0.05) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 6s infinite alternate-reverse;
}

.learn .head {
    text-align: center;
    margin-bottom: 3rem;
}

.learn .head h2 {
    font-size: clamp(2rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.learn .head h2:after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    transition: width 0.3s ease;
}

.learn .head:hover h2:after {
    width: 120px;
}

.learn .head p {
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
    font-size: 1rem;
}

.learn .info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.learn .info .item {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-slow);
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    overflow: hidden;
    position: relative;
    text-align: center;
}

.learn .info .item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.learn .info .item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: var(--shadow-heavy);
    opacity: 0;
    transition: var(--transition-slow);
    z-index: -1;
}

.learn .info .item:hover {
    transform: translateY(-15px);
}

.learn .info .item:hover::before {
    opacity: 1;
}

.learn .info .item:hover::after {
    opacity: 1;
}

.learn .info .item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
    margin-bottom: 1.5rem;
}

.learn .info .item:hover img {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.learn .info .item h2 {
    font-size: 1.25rem;
    color: var(--text-color);
    position: relative;
    padding-bottom: 1rem;
    transition: var(--transition-fast);
    margin-bottom: 1rem;
}

.learn .info .item h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition-fast);
}

.learn .info .item:hover h2 {
    color: var(--primary-color);
}

.learn .info .item:hover h2::after {
    width: 60px;
}

.learn .info .item p {
    color: var(--text-light);
    font-size: 0.9rem;
    line-height: 1.6;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-fast);
    margin-bottom: 1rem;
}

.learn .info .item:hover p {
    opacity: 1;
    transform: translateY(0);
}

.learn .info .item .btn-learn {
    padding: 0.5rem 1.5rem;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: var(--transition-fast);
    opacity: 0;
    transform: translateY(20px);
    cursor: pointer;
    text-decoration: none;
}

.learn .info .item:hover .btn-learn {
    opacity: 1;
    transform: translateY(0);
}

.learn .info .item .btn-learn:hover {
    background-color: var(--primary-color);
    color: var(--white);
}


/* ===== Tracks Section ===== */

.tracks {
    padding: 4rem 5%;
    margin-bottom: 6rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(240, 248, 255, 0.5) 0%, rgba(240, 248, 255, 0.8) 100%);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-light);
}

.tracks::before {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 250px;
    height: 250px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(5, 89, 207, 0.08) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 8s infinite alternate;
}

.tracks::after {
    content: '';
    position: absolute;
    bottom: -80px;
    left: -80px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(11, 129, 202, 0.08) 0%, transparent 70%);
    z-index: -1;
    animation: pulse 6s infinite alternate-reverse;
}

.tracks .head {
    margin-bottom: 3rem;
    position: relative;
}

.tracks .head h1 {
    font-size: clamp(2.5rem, 5vw, 3rem);
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tracks .head h1:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.tracks .head:hover h1:after {
    width: 150px;
}

.tracks .head p {
    color: var(--text-light);
    line-height: 1.8;
    max-width: 700px;
    position: relative;
    padding-left: 1.5rem;
    font-size: 1rem;
}

.tracks .head p::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
    border-radius: 4px;
}

.tracks .info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    background-color: var(--white);
    box-shadow: var(--shadow-light);
    position: relative;
}

.tracks .info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(5, 89, 207, 0.02), transparent);
    z-index: 0;
}

.tracks .info .item {
    display: flex;
    flex-direction: column;
    background-color: var(--white);
    cursor: pointer;
    transition: var(--transition-slow);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-light);
    position: relative;
    z-index: 1;
}

.tracks .info .item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.tracks .info .item::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: var(--shadow-heavy);
    opacity: 0;
    transition: var(--transition-slow);
    z-index: -1;
}

.tracks .info .item:hover {
    transform: translateY(-10px) scale(1.02);
}

.tracks .info .item:hover::after {
    opacity: 1;
}

.tracks .info .item img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: var(--transition-medium);
}

.tracks .info .item:hover img {
    transform: scale(1.05);
    filter: brightness(1.1);
}

.tracks .info .item h2 {
    margin: 1.5rem;
    font-size: 1.5rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 1rem;
    transition: var(--transition-fast);
    text-align: center;
}

.tracks .info .item h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition-fast);
}

.tracks .info .item:hover h2 {
    transform: scale(1.05);
}

.tracks .info .item:hover h2::after {
    width: 80px;
}

.tracks .info .item p {
    padding: 0 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    line-height: 1.6;
    color: var(--text-light);
    font-size: 0.95rem;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-fast);
}

.tracks .info .item:hover p {
    opacity: 1;
    transform: translateY(0);
}

.tracks .info .item .btn-track {
    margin: 0 1.5rem 1.5rem;
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: var(--transition-fast);
    opacity: 0;
    transform: translateY(20px);
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}

.tracks .info .item:hover .btn-track {
    opacity: 1;
    transform: translateY(0);
}

.tracks .info .item .btn-track:hover {
    background-color: var(--primary-color);
    color: var(--white);
}


/* ===== Responsive Design ===== */

@media screen and (max-width: 1200px) {
    .home {
        padding: 8rem 4% 5rem 4%;
    }
    .about,
    .video {
        padding: 3rem 2rem;
    }
    .subjects,
    .learn,
    .tracks {
        padding: 0 4%;
    }
    .tracks {
        padding: 3rem 4%;
    }
}

@media screen and (max-width: 992px) {
    .home {
        flex-direction: column;
        padding: 8rem 3% 5rem 3%;
        text-align: center;
        gap: 2rem;
    }
    .home .left {
        padding-left: 0;
    }
    .home .left::before {
        display: none;
    }
    .about,
    .video {
        flex-direction: column;
        padding: 2rem;
        gap: 2rem;
    }
    .about .left,
    .about .right,
    .video .left,
    .video .right {
        flex: none;
        width: 100%;
    }
    .about .right,
    .video .left {
        padding: 1rem 0;
    }
    .subjects,
    .learn {
        padding: 0 3%;
    }
    .tracks {
        padding: 2rem 3%;
    }
    .subjects .item {
        grid-template-columns: 1fr;
    }
    .learn .info {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    .tracks .info {
        grid-template-columns: 1fr;
        padding: 1.5rem;
    }
}

@media screen and (max-width: 768px) {
    .home .left .search {
        flex-direction: column;
        gap: 1rem;
        padding: 1.5rem;
        border-radius: var(--border-radius-md);
    }
    .home .left .search input {
        margin-left: 0;
        text-align: center;
    }
    .about .right h4 {
        font-size: 0.9rem;
        padding: 0.4rem 1rem;
    }
    .video .left .video-btn {
        flex-direction: column;
        gap: 1rem;
    }
    .subjects .item {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .learn .info {
        grid-template-columns: 1fr;
    }
    .tracks .info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .tracks .info .item p,
    .tracks .info .item .btn-track {
        opacity: 1;
        transform: translateY(0);
    }
}

@media screen and (max-width: 480px) {
    .home {
        padding: 6rem 2% 3rem 2%;
    }
    .about,
    .video {
        padding: 1.5rem;
        margin: 2rem 0;
    }
    .subjects,
    .learn {
        padding: 0 2%;
        margin-bottom: 3rem;
    }
    .tracks {
        padding: 1.5rem 2%;
        margin-bottom: 3rem;
    }
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
}


/* ===== Support for reduced motion preference ===== */

@media (prefers-reduced-motion: reduce) {
    .fade-in,
    .spinner {
        animation: none;
    }
    .back-to-top:hover,
    .btn-primary:hover,
    .about .right h4:hover,
    .about .right h1 span:hover,
    .about .right h3 i:hover,
    .video .left h1 span:hover,
    .btn-secondary:hover,
    .subjects .item .card:hover,
    .subjects .item .card:hover i,
    .learn .info .item:hover,
    .tracks .info .item:hover,
    .tracks .info .item:hover img {
        transform: none;
    }
    .home::before,
    .home::after,
    .about::before,
    .about::after,
    .video::before,
    .video::after,
    .subjects::before,
    .subjects::after,
    .tracks::before,
    .tracks::after {
        animation: none;
    }
    .home .right img {
        animation: none;
    }
    .home .right a::before {
        animation: none;
    }
}


/* ===== Custom Scrollbar ===== */

::-webkit-scrollbar {
    width: 12px;
    background-color: var(--light-bg);
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
    border-radius: 10px;
    box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.1);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    border: 2px solid var(--light-bg);
    transition: var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, var(--primary-dark), var(--secondary-color));
    border: 1px solid var(--light-bg);
}

::-webkit-scrollbar-button {
    display: none;
}

* {
    scrollbar-width: auto;
    scrollbar-color: var(--primary-color) var(--light-bg);
}


/* ===== Utility Classes ===== */

.color1::before {
    content: "";
    width: 0%;
    position: absolute;
    bottom: 0;
    height: 5px;
    border-bottom: 4px solid #ebb935;
    transition: width 1s ease;
}

.color2::before {
    content: "";
    width: 0%;
    position: absolute;
    bottom: 0;
    height: 5px;
    border-bottom: 4px solid var(--primary-color);
    transition: width 1s ease;
}

.color3::before {
    content: "";
    width: 0%;
    position: absolute;
    bottom: 0;
    height: 5px;
    border-bottom: 4px solid #ebb935;
    transition: width 1s ease;
}

.Popular:hover::before {
    width: 100%;
}

.color1:hover::before {
    width: 100%;
}

.color2:hover::before {
    width: 100%;
}

.color3:hover::before {
    width: 100%;
}