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

:root {
    --primary-blue: #0066FF;
    --primary-magenta: #FF00FF;
    --cyan: #00D4FF;
    --dark-bg: #0a0a0a;
    --card-bg: #1a1a1a;
    --text-light: #ffffff;
    --text-gray: #b0b0b0;
}

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

/* Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 0.5rem 0;
    box-shadow: 0 2px 20px rgba(0, 102, 255, 0.1);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 0.5rem;
}

.logo {
    font-size: 1rem;
    font-weight: bold;
    margin: 1rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: transform 0.5s, box-shadow 0.5s;
    animation: fadeInUp 2s ease-out 0.5s backwards;
}
.logo:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 102, 255, 0.3);
}
.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-magenta));
    transition: width 0.3s;
}

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

.theme-toggle {
    cursor: pointer;
    padding: 0.5rem 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    transition: all 0.3s;
    margin-left: 0.1rem;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Search Bar */
.search-container {
    position: relative;
    margin-left: 1rem;
    margin: 1rem;
}

.search-input {
    padding: 0.5rem 0.5rem 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    color: var(--text-light);
    font-size: 0.9rem;
    width: 200px;
    transition: all 0.3s;
}

body.light-theme .search-input {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.2);
}

.search-input:focus {
    outline: none;
    width: 250px;
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-blue);
}

body.light-theme .search-input:focus {
    background: rgba(0, 0, 0, 0.08);
}

.search-input::placeholder {
    color: var(--text-gray);
}

.search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-gray);
    pointer-events: none;
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 0.5rem;
    background: var(--card-bg);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    max-height: 400px;
    overflow-y: auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    display: none;
}

.search-results.active {
    display: block;
}

.search-result-item {
    padding: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    cursor: pointer;
    transition: all 0.3s;
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: rgba(0, 102, 255, 0.1);
}

.search-result-title {
    font-weight: bold;
    color: var(--cyan);
    margin-bottom: 0.3rem;
    font-size: 0.95rem;
}

.search-result-text {
    color: var(--text-gray);
    font-size: 0.85rem;
    line-height: 1.4;
}

.search-result-text mark {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    color: white;
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
}

.no-results {
    padding: 2rem;
    text-align: center;
    color: var(--text-gray);
}

.search-highlight {
    background: rgba(255, 0, 255, 0.3);
    padding: 0.2rem;
    border-radius: 3px;
    animation: highlight-fade 2s ease-out;
}

@keyframes highlight-fade {
    0% {
        background: rgba(255, 0, 255, 0.5);
    }

    100% {
        background: transparent;
    }
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-light);
    transition: 0.3s;
}

/* Light Theme */
body.light-theme {
    --dark-bg: #f5f5f5;
    --card-bg: #ffffff;
    --text-light: #1a1a1a;
    --text-gray: #555555;
}

body.light-theme header {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

body.light-theme .course-card {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

body.light-theme .course-card:hover {
    box-shadow: 0 20px 40px rgba(0, 102, 255, 0.15);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 102, 255, 0.1), transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 0, 255, 0.1), transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

.hero-content {
    max-width: 1200px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: linear-gradient(135deg, var(--cyan), var(--primary-blue), var(--primary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.3rem;
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out 0.2s backwards;
}

.logoDesingData {
    transition: transform 0.5s, box-shadow 0.5s;
    animation: fadeInUp 2s ease-out 0.5s backwards;
}

.logoDesingData:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 102, 255, 0.3);
}
.cta-button {
    display: inline-block;
    padding: 1.5rem 2.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1s ease-out 0.4s backwards;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.4);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Courses Section */
.courses {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.course-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-blue), var(--primary-magenta));
}

.course-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 102, 255, 0.2);
}

.course-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.course-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--cyan);
}

.course-card p {
    color: var(--text-gray);
    margin-bottom: 1rem;
}

.course-list {
    list-style: none;
    padding-left: 0;
}

.course-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-gray);
}

.course-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-magenta);
    font-weight: bold;
}

/* About Section */
.about {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1rem;
    background: var(--card-bg);
    border-radius: 20px;
    margin-top: 1rem;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-text p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-top: 2rem;
}

.stat-card {
    text-align: center;
    padding: 1.5rem;
    background: rgba(0, 102, 255, 0.1);
    border-radius: 10px;
    border: 1px solid rgba(0, 102, 255, 0.2);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-gray);
    margin-top: 0.5rem;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 20px 40px rgba(0, 102, 255, 0.2);
}

/* About Details Section */
.about-details {
    max-width: 1200px;
    margin: 1rem auto;
    padding: 0 1rem;
}

.about-section {
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 15px;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.about-section h3 {
    font-size: 2rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-section p {
    color: var(--text-gray);
    line-height: 1.8;
    font-size: 1.05rem;
    margin-bottom: 1rem;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.principle-card {
    background: rgba(0, 102, 255, 0.05);
    padding: 1rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-blue);
    transition: all 0.3s;
}

.principle-card:hover {
    transform: translateX(10px);
    border-left-color: var(--primary-magenta);
    background: rgba(0, 102, 255, 0.1);
}

.principle-card h4 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--cyan);
}

.principle-card p {
    font-size: 1rem;
}

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

/* Contact Section */
.contact {
    max-width: 800px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.contact-form {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-gray);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-light);
    font-size: 1rem;
    transition: all 0.3s;
}

body.light-theme .form-group input,
body.light-theme .form-group textarea {
    background: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-error {
    color: #ff4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.form-group.error input,
.form-group.error textarea {
    border-color: #ff4444;
}

.form-group.error .form-error {
    display: block;
}

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-magenta));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 102, 255, 0.4);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    display: none;
}

.form-message.success {
    background: rgba(0, 255, 0, 0.1);
    border: 1px solid rgba(0, 255, 0, 0.3);
    color: #00ff00;
    display: block;
}

.form-message.error {
    background: rgba(255, 0, 0, 0.1);
    border: 1px solid rgba(255, 0, 0, 0.3);
    color: #ff4444;
    display: block;
}
/* Footer */
footer {
    background: var(--card-bg);
    text-align: center;
    padding: 2rem;
    margin-top: 4rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

footer p {
    color: var(--text-gray);
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .theme-toggle {
        margin-left: 0;
        margin-top: 1rem;
    }

    .search-container {
        margin-left: 0;
        margin-top: 1rem;
        width: 100%;
    }

    .search-input {
        width: 100%;
    }

    .search-input:focus {
        width: 100%;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: rgba(10, 10, 10, 0.98);
        flex-direction: column;
        align-items: center;
        padding: 2rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s;
    }

    body.light-theme .nav-links {
        background: rgba(255, 255, 255, 0.98);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    .hero-content{
        padding: 1.2rem;
    }
    .hero h1 {
        font-size: 1.7rem;
        padding: 0.7rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .course-grid {
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .principles-grid,
    .mvv-grid {
        grid-template-columns: 1fr;
    }

    .about-section {
        padding: 0.5rem 1rem;
    }

}