/* Base Styles */
:root {
    --bg-color: #ffffff;
    --text-color: #333333;
    --accent-color: #000000;
    --accent-text: #ffffff;
    --card-bg: #ffffff;
    --card-border: #eeeeee;
    --section-bg: #f5f5f5;
    --input-border: #dddddd;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --bg-color: #121212;
    --text-color: #f5f5f5;
    --accent-color: #ffffff;
    --accent-text: #121212;
    --card-bg: #1e1e1e;
    --card-border: #333333;
    --section-bg: #1a1a1a;
    --input-border: #444444;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: var(--transition);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent-color);
}

/* Buttons */
button {
    cursor: pointer;
    font-family: 'Poppins', sans-serif;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--accent-text);
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 1rem;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--accent-color);
    padding: 10px 20px;
    border-radius: 6px;
    font-weight: 500;
    font-size: 1rem;
    width: 100%;
}

.btn-secondary:hover {
    background-color: var(--accent-color);
    color: var(--accent-text);
}

/* Header & Navigation */
header {
    background-color: var(--bg-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 2rem;
}

.nav-links a {
    display: flex;
    align-items: center;
}

.nav-links i {
    margin-right: 0.5rem;
}

.nav-right {
    display: flex;
    align-items: center;
}

#theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
    margin-right: 1rem;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.2rem;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    background-color: var(--section-bg);
    padding: 1rem;
}

.mobile-menu a {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--card-border);
}

.mobile-menu a:last-child {
    border-bottom: none;
}

/* Hero Section */
.hero {
    background-color: var(--section-bg);
    padding: 5rem 0;
    text-align: center;
    transition: var(--transition);
}

.hero h1 {
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.8;
}

/* Ad Space */
.ad-space {
    padding: 2rem 0;
}

.ad-container {
    background-color: var(--section-bg);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}

.ad-label {
    color: #888;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.ad-placeholder {
    height: 120px;
    border: 1px dashed var(--input-border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
}

/* Featured Content */
.featured {
    padding: 4rem 0;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    border: 1px solid var(--card-border);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.card p {
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

/* Newsletter */
.newsletter {
    background-color: var(--section-bg);
    padding: 4rem 0;
    text-align: center;
}

.newsletter p {
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.8;
}

.newsletter-form {
    display: flex;
    max-width: 500px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--input-border);
    border-radius: 6px 0 0 6px;
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
}

.newsletter-form button {
    border-radius: 0 6px 6px 0;
}

/* Footer */
footer {
    background-color: var(--section-bg);
    padding: 2rem 0;
    border-top: 1px solid var(--card-border);
}

footer .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.social-links {
    display: flex;
}

.social-links a {
    margin-left: 1rem;
    font-size: 1.2rem;
}

/* Media Queries */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-menu.active {
        display: flex;
    }

    .newsletter-form {
        flex-direction: column;
    }

    .newsletter-form input {
        border-radius: 6px;
        margin-bottom: 1rem;
    }

    .newsletter-form button {
        border-radius: 6px;
    }

    footer .container {
        flex-direction: column;
    }

    footer p {
        margin-bottom: 1rem;
    }

    .social-links a:first-child {
        margin-left: 0;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    .hero {
        padding: 3rem 0;
    }
}