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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 18px;
    line-height: 1.7;
    color: #1a1a1a;
    background: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container.narrow {
    max-width: 720px;
}

/* Header */
.site-header {
    border-bottom: 1px solid #e5e5e5;
    padding: 20px 0;
}

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

.logo {
    font-size: 22px;
    font-weight: 700;
    color: #1a1a1a;
    text-decoration: none;
}

nav a {
    margin-left: 32px;
    color: #555;
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
}

nav a:hover {
    color: #1a1a1a;
}

/* Post */
.post {
    padding: 60px 0;
}

.post-header {
    margin-bottom: 40px;
}

.post-header h1 {
    font-size: 42px;
    line-height: 1.2;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.post-meta {
    color: #666;
    font-size: 14px;
}

.post-meta span {
    margin-right: 16px;
}

.author {
    font-weight: 600;
    color: #1a1a1a;
}

/* Content */
.post-content {
    font-size: 18px;
    line-height: 1.8;
}

.post-content p {
    margin-bottom: 24px;
}

.post-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin: 48px 0 20px;
    letter-spacing: -0.3px;
}

.post-content h3 {
    font-size: 22px;
    font-weight: 600;
    margin: 36px 0 16px;
}

.post-content ul, .post-content ol {
    margin-bottom: 24px;
    padding-left: 28px;
}

.post-content li {
    margin-bottom: 8px;
}

.post-content strong {
    font-weight: 600;
    color: #1a1a1a;
}

/* Video */
.video-embed {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    margin: 32px 0;
    border-radius: 8px;
    overflow: hidden;
}

.video-embed iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* Lead Magnet */
.lead-magnet {
    background: #f8f8f8;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 32px;
    margin: 48px 0;
    text-align: center;
}

.lead-magnet h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.lead-magnet p {
    color: #555;
    margin-bottom: 20px;
}

.btn-primary {
    display: inline-block;
    background: #1a1a1a;
    color: #fff;
    padding: 14px 32px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
}

.btn-primary:hover {
    background: #333;
}

/* Author Box */
.post-footer {
    margin-top: 64px;
    padding-top: 40px;
    border-top: 1px solid #e5e5e5;
}

.author-box {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.author-img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
}

.author-box h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 6px;
}

.author-box p {
    font-size: 15px;
    color: #555;
    line-height: 1.6;
}

/* Home */
.home-intro {
    padding: 80px 0 60px;
    text-align: center;
}

.home-intro h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.home-intro p {
    font-size: 20px;
    color: #555;
    max-width: 600px;
    margin: 0 auto;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
    padding: 40px 0 80px;
}

.post-card {
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 28px;
    text-decoration: none;
    color: inherit;
    transition: box-shadow 0.2s;
}

.post-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.post-card h2 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.3;
}

.post-card .excerpt {
    font-size: 15px;
    color: #555;
    line-height: 1.6;
    margin-bottom: 16px;
}

.post-card .meta {
    font-size: 13px;
    color: #888;
}

/* Interview Format */
.interview-q {
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 4px;
}

.interview-a {
    margin-bottom: 20px;
    color: #333;
}

.interview-a p {
    margin-bottom: 12px;
}
.site-footer {
    border-top: 1px solid #e5e5e5;
    padding: 40px 0;
    text-align: center;
    color: #666;
    font-size: 14px;
}

/* Responsive */
@media (max-width: 640px) {
    .post-header h1 {
        font-size: 32px;
    }
    .home-intro h1 {
        font-size: 36px;
    }
    .site-header .container {
        flex-direction: column;
        gap: 12px;
    }
    nav a {
        margin: 0 12px;
    }
}