/* CSS Reset & Variables */
:root {
    --bg-color: #0a0a0a;
    /* Deepest black for background */
    --surface-color: #161616;
    /* Slightly lighter for cards/sections */
    --border-color: #2a2a2a;
    /* Subtle borders */

    --text-primary: #ededed;
    /* Off-white for main text */
    --text-secondary: #a1a1a1;
    /* Gray for secondary text */

    --accent-primary: #ffe135;
    /* Nano Banana Yellow - Vibrant */
    --accent-hover: #ffea70;
    /* Lighter yellow for hover */
    --accent-glow: rgba(255, 225, 53, 0.15);

    --header-height: 80px;
    --content-width: 900px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* 
   HEADER 
   100% Width, Content Centered 
*/
.main-header {
    width: 100%;
    height: var(--header-height);
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    /* Helper to center the inner container */
}

.header-container {
    width: 100%;
    max-width: var(--content-width);
    /* Matches content area */
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1rem;
    /* Safe padding for mobile */
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pro-badge {
    background-color: var(--accent-primary);
    color: #000;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.main-nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
}

/* 
   MAIN CONTENT
   900px Width, Centered
*/
.main-content {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    /* Horizontally centered */
    padding: 3rem 1rem 6rem;
    flex: 1;
    /* Pushes footer to bottom */
}

/* Blog Post Styling */
.blog-post {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.post-header {
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 2rem;
}

.post-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.post-category {
    color: var(--accent-primary);
}

.post-date {
    color: var(--text-secondary);
}

.post-title {
    font-size: 2.5rem;
    /* Large title */
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.post-lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.5;
    font-weight: 400;
}

/* Post Content Typography */
.post-content {
    font-size: 1.1rem;
    /* Slightly larger for reading */
    color: #d1d1d1;
}

.featured-image-container {
    margin-bottom: 2rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.featured-image {
    width: 100%;
    height: auto;
    display: block;
}

.post-content h2,
.post-content h3 {
    color: var(--text-primary);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.post-content h2 {
    font-size: 1.8rem;
}

.post-content h3 {
    font-size: 1.5rem;
}

.post-content p {
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.post-content blockquote {
    border-left: 4px solid var(--accent-primary);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--text-primary);
    font-size: 1.2rem;
    background: linear-gradient(90deg, rgba(255, 225, 53, 0.05) 0%, transparent 100%);
    padding: 1.5rem;
    border-radius: 0 8px 8px 0;
}

/* Feature List Styling */
.feature-list {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.8rem;
}

.feature-list li {
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
    font-weight: bold;
}

/* Note Styling */
.note {
    font-size: 0.9rem;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 1rem;
    border-radius: 8px;
    color: #888;
}

.note strong {
    color: var(--accent-primary);
}

/* Actions / Download Area */
.post-actions {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.download-area {
    background-color: var(--surface-color);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
}

.download-area p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    text-decoration: none;
    /* For <a> tags */
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: #000;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-large {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-download .icon {
    font-size: 1.2em;
}

/* 
   FOOTER 
   100% Width, Content Centered
*/
.main-footer {
    width: 100%;
    background-color: #000;
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    /* Reduced padding */
    display: flex;
    justify-content: center;
}

.footer-container {
    width: 100%;
    max-width: var(--content-width);
    display: flex;
    justify-content: center;
    /* Center the single link */
    padding: 0 1rem;
}

.footer-simple-link a {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    transition: color 0.2s ease;
}

.footer-simple-link a:hover {
    color: var(--accent-primary);
}

.footer-column h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-column p,
.footer-column a {
    color: var(--text-secondary);
    display: block;
    margin-bottom: 0.5rem;
    text-decoration: none;
    font-size: 0.9rem;
}

.footer-column a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    width: 100%;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.8rem;
    color: #555;
}

@media (max-width: 960px) {
    .post-title {
        font-size: 2rem;
    }

    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}