/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --rutgers-red: #cc0033;
    --rutgers-red-dark: #a00028;
    --charcoal: #2c2c2c;
    --charcoal-light: #3a3a3a;
    --charcoal-dark: #1a1a1a;
    --white: #ffffff;
    --gray-light: #f5f5f5;
    --gray-medium: #e0e0e0;
    --gray-text: #666666;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.16);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--charcoal);
    background-color: var(--white);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Navigation */
.navbar {
    position: sticky;
    top: 0;
    background-color: var(--white);
    border-bottom: 1px solid var(--gray-medium);
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    color: var(--charcoal);
}

.rutgers-logo-img {
    height: 40px;
    width: auto;
    flex-shrink: 0;
    object-fit: contain;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.rutgers-logo {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--rutgers-red), var(--rutgers-red-dark));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.brand-text {
    font-weight: 600;
    font-size: 1rem;
    color: var(--charcoal);
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--charcoal);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--rutgers-red);
    transition: var(--transition);
}

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

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background-color: var(--charcoal);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    position: relative;
    width: 100%;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("/static/Administrator/assets/images/landing.jpg");
    background-size: cover;
    background-position: center;
    z-index: 1;
    animation: heroFadeIn 1.5s ease-in-out;
    filter: brightness(1.12) contrast(0.92) saturate(0.95);
}   

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: scale(1.1);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:linear-gradient(135deg, rgba(0, 0, 0, 0.5) 0%, rgba(0, 0, 0, 0.4) 50%, rgba(0, 0, 0, 0.5) 100%);

    z-index: 2;
}

.hero-container {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-md);
}

.hero-content-centered {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.rbs-badge {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    justify-content: center;
}

.image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(204, 0, 51, 0.2) 0%, rgba(44, 44, 44, 0.3) 100%);
}

.image-text {
    position: relative;
    z-index: 1;
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 600;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    text-align: center;
    padding: var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background-color: var(--rutgers-red);
    color: var(--white);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--rutgers-red-dark);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border: 2px solid var(--white);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--rutgers-red);
}

/* About Section */
.about-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background: linear-gradient(135deg, var(--gray-light) 0%, var(--white) 100%);
    position: relative;
    overflow: hidden;
}

.about-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(204, 0, 51, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--charcoal);
    margin-bottom: var(--spacing-md);
    text-align: center;
    position: relative;
    z-index: 1;
}

.about-compact {
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.about-text-compact {
    font-size: 1.125rem;
    color: var(--gray-text);
    line-height: 1.8;
    text-align: center;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    max-width: 1000px;
    margin: var(--spacing-lg) auto 0;
    position: relative;
    z-index: 1;
}

.about-feature-item {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-medium);
    transition: var(--transition);
    animation: fadeInUp 0.6s ease-out backwards;
}

.about-feature-item:nth-child(1) {
    animation-delay: 0.1s;
}

.about-feature-item:nth-child(2) {
    animation-delay: 0.2s;
}

.about-feature-item:nth-child(3) {
    animation-delay: 0.3s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.about-feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--rutgers-red);
}

.about-feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.about-feature-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: var(--spacing-xs);
}

.about-feature-text {
    font-size: 0.95rem;
    color: var(--gray-text);
    line-height: 1.6;
}

.features-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.feature-card {
    background-color: var(--gray-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid transparent;
}

.feature-card:hover {
    border-color: var(--rutgers-red);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: var(--spacing-xs);
}

.feature-description {
    font-size: 0.95rem;
    color: var(--gray-text);
    line-height: 1.6;
}

/* Courses Section */
.courses-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: var(--white);
}

.section-intro {
    font-size: 1.125rem;
    color: var(--gray-text);
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.7;
}

.courses-scroll-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.course-scroll-btn {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 2px solid var(--rutgers-red);
    background-color: var(--white);
    color: var(--rutgers-red);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 2;
}

.course-scroll-btn:hover {
    background-color: var(--rutgers-red);
    color: var(--white);
    transform: scale(1.1);
}

.course-scroll-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.courses-scroll-wrapper {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.courses-grid {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
    padding: var(--spacing-sm) 0;
}

.courses-grid::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.course-category {
    flex: 0 0 300px;
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 2px solid var(--gray-medium);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.course-category:hover {
    border-color: var(--rutgers-red);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.course-category-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--charcoal);
    margin-bottom: var(--spacing-xs);
}

.course-description {
    font-size: 0.95rem;
    color: var(--gray-text);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.btn-course-learn {
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    color: var(--rutgers-red);
    border: 2px solid var(--rutgers-red);
    border-radius: var(--border-radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    margin-top: auto;
}

.btn-course-learn:hover {
    background-color: var(--rutgers-red);
    color: var(--white);
    transform: translateY(-2px);
}

/* Login Section */
.login-section {
    padding: var(--spacing-xl) var(--spacing-md);
    background: linear-gradient(135deg, rgba(204, 0, 51, 0.08) 0%, rgba(204, 0, 51, 0.03) 100%);
    position: relative;
    z-index: 10;
}

.login-panel {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--charcoal);
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.login-subtitle {
    font-size: 1rem;
    color: var(--gray-text);
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.login-tabs {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    background-color: var(--gray-light);
    padding: 4px;
    border-radius: var(--border-radius-sm);
}

.login-tab {
    flex: 1;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 500;
    color: var(--gray-text);
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
}

.login-tab:hover {
    color: var(--charcoal);
}

.login-tab.active {
    background-color: var(--white);
    color: var(--rutgers-red);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.login-content {
    text-align: center;
}

.login-description {
    font-size: 1rem;
    color: var(--gray-text);
    margin-bottom: var(--spacing-md);
    min-height: 24px;
}

.btn-login {
    width: 100%;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    background-color: var(--rutgers-red);
    color: var(--white);
    box-shadow: var(--shadow-md);
    border: none;
    cursor: pointer;
}

.btn-login:hover {
    background-color: var(--rutgers-red-dark);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Help Section */
.help-section {
    padding: var(--spacing-lg) var(--spacing-md);
    background-color: var(--charcoal);
    color: var(--white);
}

.help-strip {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.help-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.help-icon {
    font-size: 1.5rem;
}

.help-text {
    font-size: 1rem;
}

.help-text a {
    color: var(--white);
    text-decoration: underline;
    transition: var(--transition);
}

.help-text a:hover {
    color: var(--gray-medium);
}

.help-actions {
    display: flex;
    gap: var(--spacing-md);
}

.help-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius-sm);
    transition: var(--transition);
}

.help-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.help-link-icon {
    font-size: 1.125rem;
}

/* Footer */
.footer {
    background-color: var(--charcoal-dark);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-md);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-section {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.footer-section:first-child {
    align-items: flex-start;
}

.footer-section:last-child {
    align-items: flex-end;
    gap: var(--spacing-xs);
    flex-direction: row;
    flex-wrap: wrap;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

.rutgers-logo-small {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--rutgers-red), var(--rutgers-red-dark));
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
}

.footer-copyright {
    font-size: 0.8rem;
    color: var(--gray-medium);
}

.footer-link {
    color: var(--gray-medium);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
    margin: 0 var(--spacing-xs);
}

.footer-link:hover {
    color: var(--white);
}

.footer-address {
    font-size: 0.8rem;
    color: var(--gray-medium);
    line-height: 1.4;
}

/* Responsive Design */
@media (max-width: 968px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .courses-scroll-container {
        gap: var(--spacing-xs);
    }

    .course-scroll-btn {
        width: 40px;
        height: 40px;
    }

    .course-category {
        flex: 0 0 280px;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-section {
        align-items: center;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero {
        min-height: 400px;
    }

    .hero-title {
        font-size: 2rem;
    }

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

    .section-title {
        font-size: 1.75rem;
    }

    .help-strip {
        flex-direction: column;
        text-align: center;
    }

    .course-category {
        flex: 0 0 260px;
    }

    .login-panel {
        padding: var(--spacing-md);
    }

    .login-panel {
        padding: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-md);
        min-height: auto;
    }

    .hero-title {
        font-size: 1.75rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .login-tabs {
        flex-direction: column;
    }

    .login-tab {
        width: 100%;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus States */
a:focus,
button:focus {
    outline: 2px solid var(--rutgers-red);
    outline-offset: 2px;
}