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

:root {
    --primary-color: #4A90E2;
    --secondary-color: #5C6BC0;
    --accent-color: #7E57C2;
    --text-dark: #2C3E50;
    --text-light: #5A6C7D;
    --bg-light: #F8F9FA;
    --border-color: #E1E8ED;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 2rem 0;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(255,255,255,0.1) 0%, transparent 100%);
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.95;
    font-weight: 300;
}

nav {
    background: white;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0;
}

nav ul li a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

nav ul li a:hover {
    color: var(--primary-color);
    background: var(--bg-light);
}

nav ul li a:hover::after {
    width: 80%;
}

main {
    background: white;
    margin: 2rem auto;
    padding: 3rem 2rem;
    max-width: 1200px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.6s ease;
}

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

.content-section {
    margin-bottom: 3rem;
}

.content-section:last-child {
    margin-bottom: 0;
}

h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 3px solid var(--primary-color);
    display: inline-block;
}

h3 {
    color: var(--secondary-color);
    font-size: 1.4rem;
    margin: 2rem 0 1rem 0;
}

p, ul, ol {
    margin-bottom: 1rem;
    color: var(--text-light);
    font-size: 1.05rem;
}

ul, ol {
    padding-left: 2rem;
}

li {
    margin-bottom: 0.5rem;
}

.info-box {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 1.5rem;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    margin: 1.5rem 0;
    box-shadow: var(--shadow);
}

.info-box p {
    margin: 0;
    color: var(--text-dark);
}

footer {
    background: linear-gradient(135deg, #2C3E50, #34495E);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.contact-info p {
    margin: 0;
    color: rgba(255, 255, 255, 0.9);
}

.email {
    font-weight: 600;
    font-size: 1.1rem;
    color: #4FC3F7;
}

.table-responsive {
    overflow-x: auto;
    margin: 1.5rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    box-shadow: var(--shadow);
    border-radius: 8px;
    overflow: hidden;
}

thead {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
    font-size: 1.05rem;
}

tbody tr {
    transition: background 0.3s ease;
}

tbody tr:hover {
    background: var(--bg-light);
}

tbody tr:last-child td {
    border-bottom: none;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    font-weight: 500;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.6rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    nav ul {
        flex-direction: column;
    }

    nav ul li a {
        text-align: center;
    }

    main {
        margin: 1rem;
        padding: 2rem 1.5rem;
    }

    .container {
        padding: 0 1rem;
    }
}