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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Konstansok */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --gray-color: #95a5a6;
    --border-radius: 5px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

/* Navigáció */
.navbar {
    background-color: white;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 20px;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.nav-menu a:hover {
    background-color: var(--light-color);
    color: var(--secondary-color);
}

.welcome {
    color: var(--primary-color);
    font-weight: 600;
    padding: 8px 12px;
    background-color: var(--light-color);
    border-radius: var(--border-radius);
}

/* Gombok */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background-color: var(--secondary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

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

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

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Hitelesítés oldalak */
.auth-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.auth-box {
    background-color: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    width: 100%;
    max-width: 400px;
}

.auth-box h2 {
    text-align: center;
    margin-bottom: 30px;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

/* Formok */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

.auth-links {
    margin-top: 20px;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.auth-links a {
    color: var(--secondary-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.auth-links a:hover {
    text-decoration: underline;
}

/* Alert üzenetek */
.alert {
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
    border: 1px solid #f5c6cb;
}

/* Blog */
.blog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 40px 0;
    padding: 20px 0;
    border-bottom: 1px solid #eee;
}

.blog-header h1 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
}

/* Post cards */
.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.post-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.post-header {
    padding: 25px;
    background-color: var(--primary-color);
    color: white;
}

.post-header h2 {
    margin-bottom: 10px;
    font-size: 1.3rem;
    line-height: 1.4;
}

.post-header h2 a {
    color: white;
    text-decoration: none;
}

.post-header h2 a:hover {
    text-decoration: underline;
}

.post-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 10px;
}

.post-meta span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.post-excerpt {
    padding: 25px;
    color: #666;
    flex-grow: 1;
    line-height: 1.7;
}

.post-footer {
    padding: 0 25px 25px;
}

/* Üres állapot */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.empty-state i {
    font-size: 4rem;
    color: var(--gray-color);
    margin-bottom: 20px;
}

.empty-state h3 {
    color: var(--dark-color);
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.empty-state p {
    color: var(--gray-color);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

/* Lábléc */
footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 60px;
}

/* Reszponzív design */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-menu {
        flex-direction: column;
        width: 100%;
    }
    
    .nav-menu li {
        width: 100%;
        text-align: center;
    }
    
    .nav-menu a {
        justify-content: center;
    }
    
    .blog-header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .posts-grid {
        grid-template-columns: 1fr;
    }
    
    .auth-box {
        padding: 20px;
    }
}