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

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

body {
    background: linear-gradient(135deg, #0a0a0a 0%, #0a1a1a 50%, #1a0a0a 100%);
    color: #e8e8e8;
    font-family: 'JetBrains Mono', monospace;
    line-height: 1.5;
    padding: 15px;
    min-height: 100vh;
    font-size: 14px;
}

.container {
    max-width: 700px;
    margin: 0 auto;
    background: rgba(18, 18, 18, 0.98);
    padding: 25px;
    border: 1px solid #444;
    border-radius: 6px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    position: relative;
}

.container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #ff4444, #00dddd, #ff4444, transparent);
    border-radius: 6px 6px 0 0;
}

.post-title {
    color: #ff4444;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 10px;
    letter-spacing: -0.02em;
}

.post-meta {
    color: #888;
    font-size: 0.85rem;
    margin-bottom: 25px;
    padding-bottom: 10px;
    border-bottom: 1px solid #333;
    font-weight: 300;
}

.post-meta::before {
    content: '▶ ';
    color: #00dddd;
    font-weight: 500;
}

.post-content {
    display: flex;
    flex-direction: column;
    gap: 1.2em;
}

.post-content h2 {
    color: #ff4444;
    font-size: 1.3rem;
    margin: 25px 0 12px 0;
    font-weight: 500;
    position: relative;
    padding-left: 15px;
}

.post-content h2::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, #ff4444, #00dddd);
    border-radius: 2px;
}

.post-content h3 {
    color: #00dddd;
    font-size: 1.1rem;
    margin: 20px 0 10px 0;
    font-weight: 500;
}

.post-content h4 {
    color: #ff8888;
    font-size: 1rem;
    margin: 15px 0 8px 0;
    font-weight: 400;
}

.post-content p {
    margin-bottom: 15px;
    color: #d0d0d0;
    font-size: 0.95rem;
    font-weight: 300;
    text-align: justify;
}

.post-content p strong {
    color: #ff4444;
    font-weight: 500;
    background: rgba(255, 68, 68, 0.1);
    padding: 1px 4px;
    border-radius: 2px;
}

code {
    background: rgba(0, 221, 221, 0.15);
    color: #00dddd;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.85em;
    border: 1px solid rgba(0, 221, 221, 0.3);
    font-weight: 400;
}

blockquote {
    margin: 20px 0;
    padding: 15px 20px;
    border-left: 3px solid #00dddd;
    background: rgba(0, 221, 221, 0.08);
    color: #bbb;
    font-style: italic;
    border-radius: 0 4px 4px 0;
}

a {
    color: #ff4444;
    text-decoration: none;
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
    font-weight: 400;
}

a:hover {
    color: #00dddd;
    border-bottom-color: #00dddd;
}

.navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #333;
    gap: 15px;
}

.nav-button {
    color: #ff4444;
    border: 1px solid #ff4444;
    padding: 10px 18px;
    font-size: 0.8rem;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 0.5px;
    border-radius: 3px;
    background: transparent;
}

.nav-button:hover {
    background: rgba(0, 221, 221, 0.1);
    box-shadow: 0 0 15px rgba(0, 221, 221, 0.3);
    transform: translateY(-1px);
    color: #00dddd;
    border-color: #00dddd;
}

.nav-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Code block styling */
.post-content p:has(code) {
    background: rgba(0, 0, 0, 0.3);
    padding: 12px;
    border-radius: 4px;
    border-left: 2px solid #ff4444;
    margin: 15px 0;
}

/* Step styling */
.post-content p:contains("[") {
    background: rgba(0, 221, 221, 0.08);
    padding: 12px;
    border-radius: 4px;
    border-left: 2px solid #00dddd;
    margin: 12px 0;
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 10px;
        font-size: 13px;
    }
    
    .container { 
        padding: 20px; 
    }
    
    .post-title { 
        font-size: 1.5rem; 
    }
    
    .navigation { 
        flex-direction: column; 
        gap: 10px; 
    }
    
    .nav-button { 
        text-align: center; 
        padding: 10px 15px;
    }
}