@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #2E7D32;
    --secondary-color: #4CAF50;
    --accent-color: #81C784;
    --background-color: #E8F5E9;
    --text-color: #0066cc;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

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

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

body {
    background-color: var(--background-color);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    flex: 1;
    animation: fadeInUp 0.8s ease;
}

header {
    background: linear-gradient(-45deg, #2E7D32, #4CAF50, #81C784, #43A047);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: white;
    padding: 40px 0;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px var(--shadow-color);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo-container {
    width: 100px;
    height: 100px;
    margin-right: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

.logo-container img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.title-container {
    text-align: center;
    flex-grow: 1;
}

header h1 {
    font-size: 2.5em;
    margin-bottom: 15px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    animation: fadeInUp 0.8s ease;
}

header h2 {
    font-size: 1.8em;
    font-weight: 500;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    animation: fadeInUp 1s ease;
}

.section-title {
    color: var(--primary-color);
    margin-bottom: 10px;
    font-size: 1.5em;
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 5px;
    animation: fadeInUp 1.2s ease;
}

.file-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    animation: fadeInUp 1.4s ease;
    margin-bottom: 15px;
}

.file-link {
    padding: 3px 0;
    transition: transform 0.3s ease;
}

.file-link:hover {
    transform: translateX(10px);
}

.file-link a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 1.1em;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 5px;
}

.file-link a:hover {
    color: #0052cc;
    text-decoration: underline;
}

.file-link a::before {
    content: '→';
    position: absolute;
    left: -20px;
    opacity: 0;
    transition: all 0.3s ease;
}

.file-link a:hover::before {
    opacity: 1;
    left: -25px;
}

footer {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 30px;
    animation: fadeInUp 1.6s ease;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }

    .logo-container {
        margin: 0 0 20px 0;
    }

    header h1 {
        font-size: 2em;
    }

    header h2 {
        font-size: 1.5em;
    }

    .file-list {
        grid-template-columns: 1fr;
        gap: 5px;
    }
}