:root {
    --primary: #4a6cf7;
    --primary-dark: #3a56d4;
    --secondary: #6c5ce7;
    --accent: #00b894;
    --text-dark: #2d3748;
    --text-light: #718096;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
    --radius: 12px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background: linear-gradient(135deg, #f5f7fa 0%, #e4edf5 100%);
    color: var(--text-dark);
    line-height: 1.6;
    min-height: 100vh;
    padding-bottom: 2rem;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

header {
    text-align: center;
    padding: 3rem 0 2rem;
    position: relative;
}

.logo {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
}

.tagline {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.nav-tabs {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.nav-tab {
    padding: 0.8rem 1.5rem;
    background: var(--bg-white);
    border-radius: 50px;
    box-shadow: var(--shadow);
    font-weight: 600;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-tab:hover, .nav-tab.active {
    background: var(--primary);
    color: white;
    transform: translateY(-3px);
}

.content-section {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2.5rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.content-section:hover {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
    font-size: 1.4rem;
}

.section-title i {
    font-size: 1.6rem;
}

.content-section p {
    margin-bottom: 1.2rem;
    color: var(--text-dark);
}

.content-section ul {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.content-section li {
    margin-bottom: 0.7rem;
    position: relative;
}

.highlight {
    background: rgba(74, 108, 247, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    color: var(--primary);
    font-weight: 500;
}

.contact-info {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    margin-top: 2rem;
}

.contact-info h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.contact-info p {
    margin-bottom: 0.5rem;
}

.email-link {
    color: white;
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.7rem 1.5rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    transition: var(--transition);
}

.email-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    color: var(--text-light);
    font-size: 0.9rem;
}

.update-date {
    margin-top: 1rem;
    font-style: italic;
}

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

.content-section {
    animation: fadeIn 0.6s ease forwards;
    opacity: 0;
}

.content-section:nth-child(1) { animation-delay: 0.1s; }
.content-section:nth-child(2) { animation-delay: 0.2s; }
.content-section:nth-child(3) { animation-delay: 0.3s; }
.content-section:nth-child(4) { animation-delay: 0.4s; }
.content-section:nth-child(5) { animation-delay: 0.5s; }
.content-section:nth-child(6) { animation-delay: 0.6s; }
.content-section:nth-child(7) { animation-delay: 0.7s; }

@media (max-width: 768px) {
    .nav-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .nav-tab {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .content-section {
        padding: 1.5rem;
    }
    
    .logo {
        font-size: 2.2rem;
    }
}