/* Basic Styles */
:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --accent-color: #28a745;
    --background-color: #f8f9fa;
    --text-color: #343a40;
    --light-text-color: #6c757d;
    --border-color: #dee2e6;
    --header-bg-color: #343a40;
    --header-text-color: #ffffff;
    --footer-bg-color: #343a40;
    --footer-text-color: #ffffff;
    --code-bg-color: #272822;
    --code-text-color: #f8f8f2;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* Header */
header {
    background: var(--header-bg-color);
    color: var(--header-text-color);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

header .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    padding-bottom: 10px;
}

header nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

header nav ul li {
    margin: 0 15px;
}

header nav a {
    color: var(--header-text-color);
    text-decoration: none;
    font-size: 1.1rem;
    padding: 5px 0;
    transition: color 0.3s ease;
}

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

/* Free Proxy Link */
.free-proxy-link {
    background-color: #ffc107; /* A bright, eye-catching color */
    padding: 10px 20px;
    margin-top: 15px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    animation: pulse 2s infinite;
}

.free-proxy-link a {
    color: var(--text-color);
    font-weight: bold;
    text-decoration: none;
    font-size: 1.2em;
}

.free-proxy-link a:hover {
    text-decoration: underline;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.03); }
    100% { transform: scale(1); }
}

/* Main Content */
main {
    flex: 1;
    padding: 2rem 0;
}

.content-section {
    background: #ffffff;
    padding: 30px;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.content-section h2,
.content-section h3,
.content-section h4 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 1.5rem;
}

.content-section h3 {
    font-size: 1.8rem;
}

.content-section h4 {
    font-size: 1.4rem;
}

.content-section p {
    margin-bottom: 1rem;
    line-height: 1.8;
    color: var(--light-text-color);
}

/* Hero Section */
.hero {
    text-align: center;
    background: var(--header-bg-color) url('https://via.placeholder.com/1500x400/343a40/ffffff?text=SOCKS5+Proxy+Server') no-repeat center center/cover;
    color: var(--header-text-color);
    padding: 80px 0;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    color: var(--header-text-color);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
}

/* Buttons */
.button {
    display: inline-block;
    color: #ffffff;
    background: var(--primary-color);
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 50px;
    margin: 8px;
    transition: all 0.3s ease;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

.button:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
}

.button.primary {
    background: var(--primary-color);
}

.button.primary:hover {
    background: #0056b3;
}

.button.secondary {
    background: var(--secondary-color);
}

.button.secondary:hover {
    background: #545b62;
}

.button.download {
    background: var(--accent-color);
}

.button.download:hover {
    background: #218838;
}

/* Feature Grid */
.feature-grid,
.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.feature-item,
.download-item {
    background: #ffffff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease;
}

.feature-item:hover,
.download-item:hover {
    transform: translateY(-5px);
}

.feature-item h4,
.download-item h3 {
    color: var(--primary-color);
    margin-top: 0;
    margin-bottom: 15px;
}

.download-item p {
    flex-grow: 1; /* Allows paragraph to take up available space */
    margin-bottom: 20px;
}

/* Code Blocks */
pre {
    background: var(--code-bg-color);
    color: var(--code-text-color);
    padding: 1.2rem;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    line-height: 1.5;
}

code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}

/* Lists */
ul,
ol {
    list-style-position: inside;
    margin-left: 0;
    padding-left: 20px;
    margin-bottom: 1rem;
}

ul li,
ol li {
    margin-bottom: 0.5rem;
}

/* Copy Button for Script */
.copy-button {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-bottom: 15px;
    transition: background-color 0.3s ease;
}

.copy-button:hover {
    background-color: #0056b3;
}

/* Footer */
footer {
    background: var(--footer-bg-color);
    color: var(--footer-text-color);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
    box-shadow: 0 -2px 4px rgba(0, 0, 0, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    header nav ul {
        flex-direction: column;
        align-items: center;
    }

    header nav ul li {
        margin: 5px 0;
    }

    .hero h2 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .button {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .feature-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }

    .content-section {
        padding: 20px;
    }
}