@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --dark-bg: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    --card-bg: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-dark: #03000F;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 25px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.3);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.app-header {
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid rgba(102, 126, 234, 0.2);
}

.app-navbar {
    padding: 1rem 0;
}

.navbar-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    transition: var(--transition);
}

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

.brand-logo img {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.brand-text {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-toggle svg {
    width: 24px;
    height: 24px;
    fill: var(--text-primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
    align-items: center;
    margin: 0;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

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

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

.app-footer {
    background: rgba(0, 0, 0, 0.4);
    border-top: 1px solid rgba(102, 126, 234, 0.2);
    margin-top: auto;
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand img {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 0.5rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer-column h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-column li {
    margin-bottom: 0.75rem;
}

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

.footer-column a:hover {
    color: var(--text-primary);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 1rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin: 0;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-primary);
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.3);
    text-decoration: none;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    color: var(--text-primary);
}

.card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

#navbar_master {
    padding-top: 80px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    .mobile-toggle {
        display: block;
    }

    .navbar-collapse {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(10, 14, 39, 0.98);
        backdrop-filter: blur(10px);
        padding: 1.5rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
        border-top: 1px solid rgba(102, 126, 234, 0.2);
    }

    .navbar-collapse:not(.show) {
        display: none;
    }

    .nav-links {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .nav-link::after {
        display: none;
    }

    .brand-text {
        font-size: 1.5rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .brand-logo img {
        width: 35px;
        height: 35px;
    }

    .brand-text {
        font-size: 1.25rem;
    }
}