:root {
    --primary-color: #0055cc;
    --secondary-color: #4b5e7a;
    --accent-color: #00cc7a;
    --error-color: #dc2626;
    --success-color: #10b981;
    --background-color: #f8fafc;
    --text-color: #333333;
    --white-color: #ffffff;
    --sidebar-width: 260px;
    --border-radius: 12px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.7;
    font-size: 16px;
}

.landing-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background-color: var(--white-color);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo img {
    width: 36px;
    height: 36px;
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 600;
}

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

nav a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding: 0.8rem 1.6rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    border: none;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: #0044aa;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--white-color);
    color: var(--primary-color);
    padding: 0.8rem 1.6rem;
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: rgba(0, 85, 255, 0.05);
    transform: translateY(-2px);
}

.btn-login {
    background-color: transparent;
    color: var(--primary-color);
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--primary-color);
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-login:hover {
    background-color: rgba(0, 85, 255, 0.05);
}

/* Hero */
.hero {
    display: flex;
    align-items: center;
    padding: 6rem 5%;
    background: linear-gradient(135deg, var(--background-color) 0%, 100%);
    gap: 2rem;
}

.hero-content {
    flex: 1;
    max-width: 650px;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.05rem;
    color: var(--secondary-color);
    margin-bottom: 1.5rem;
}

.hero-content .subtitle {
    font-style: italic;
    font-size: 1rem;
    color: var(--secondary-color);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1.2rem;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.image-placeholder {
    width: 100%;
    max-width: 450px;
    height: 350px;
    background: linear-gradient(45deg, var(--primary-color) 0%, #003388 100%);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Sections */
.about, .modules, .why-novux, .use-cases, .get-involved {
    padding: 4rem 5%;
    text-align: center;
}

.about h2, .modules h2, .why-novux h2, .use-cases h2, .get-involved h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.about p, .modules p, .why-novux p, .use-cases p, .get-involved p {
    max-width: 700px;
    margin: 0 auto 2rem;
    color: var(--secondary-color);
    font-size: 1.05rem;
}

/* Modules */
.modules {
    background-color: var(--white-color);
}

.modules-grid, .why-grid, .use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.module-card, .why-card, .use-case-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
}

.module-card:hover, .why-card:hover, .use-case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.module-card i, .why-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.module-card h3, .why-card h3, .use-case-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.module-card p, .why-card p, .use-case-card p {
    color: var(--secondary-color);
    font-size: 0.95rem;
}

/* Footer */
footer {
    background-color: var(--text-color);
    color: var(--white-color);
    padding: 2.5rem 5%;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--white-color);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-color);
}

.footer-social a {
    color: var(--white-color);
    font-size: 1.2rem;
    margin-left: 1rem;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--accent-color);
}

.footer-copyright {
    text-align: center;
    font-size: 0.9rem;
    color: #a0aec0;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Dashboard Container */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--white-color);
    padding: 1.5rem 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    border-right: 1px solid rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 0 1.5rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}

.sidebar-header img {
    height: 40px;
}

.sidebar-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.sidebar-nav {
    padding: 0 1rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-section {
    margin-bottom: 1.5rem;
}

.nav-section h4 {
    font-size: 0.85rem;
    color: var(--secondary-color);
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 6px;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

.sidebar-nav a:hover {
    background-color: rgba(0, 85, 255, 0.05);
    color: var(--primary-color);
}

.sidebar-nav a.active {
    background-color: rgba(0, 85, 255, 0.1);
    color: var(--primary-color);
    font-weight: 600;
}

.sidebar-nav a i {
    font-size: 1rem;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    margin-top: auto;
}

.sidebar-footer .user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem;
    border-radius: 6px;
    color: var(--text-color);
    font-size: 0.95rem;
}

.sidebar-footer .user-profile i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem 5%;
    background-color: var(--background-color);
}

.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.main-header h1 {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-color);
}

.header-actions .user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    background-color: var(--white-color);
    box-shadow: var(--box-shadow);
    font-size: 0.95rem;
    cursor: pointer;
}

.header-actions .user-profile i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

.content-grid {
    display: grid;
    gap: 2rem;
}

.welcome-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
}

.welcome-card h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.welcome-card p {
    font-size: 1.05rem;
    color: var(--secondary-color);
}

.module-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.module-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
}

.module-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

.module-card i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.module-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.module-card p {
    font-size: 0.95rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.module-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--secondary-color);
}

.module-stats span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.quick-access {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
}

.quick-access h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.access-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.access-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: rgba(0, 85, 255, 0.05);
    border-radius: 6px;
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.access-item:hover {
    background-color: rgba(0, 85, 255, 0.1);
    color: var(--primary-color);
}

.access-item i {
    font-size: 1.25rem;
    color: var(--primary-color);
}

/* Auth Pages */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
    background-color: var(--background-color);
}

.auth-card {
    background-color: var(--white-color);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header img {
    height: 40px;
    margin-bottom: 1rem;
}

.auth-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.auth-header p {
    font-size: 0.95rem;
    color: var(--secondary-color);
}

.auth-error {
    background-color: rgba(220, 38, 38, 0.1);
    color: var(--error-color);
    padding: 0.75rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.auth-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    padding: 0.75rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

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

.auth-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.auth-form input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.5rem;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    font-size: 0.95rem;
    transition: var(--transition);
}

.auth-form input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.1);
}

.auth-form i {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(25%);
    color: var(--secondary-color);
    font-size: 0.9rem;
}

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

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--secondary-color);
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 992px) {
    .hero {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        margin-top: 2rem;
    }
    
    .main-content {
        margin-left: var(--sidebar-width);
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav {
        flex-direction: column;
        gap: 1rem;
    }
    
    .sidebar {
        width: 100%;
        position: static;
        height: auto;
        border-right: none;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .main-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        text-align: center;
    }
    
    .auth-card {
        padding: 1.5rem;
    }
    
    .main-header h1 {
        font-size: 1.5rem;
    }
}