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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.7;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 30px 50px 30px;
    background: linear-gradient(135deg, #0f1419 0%, #1a1f2e 50%, #0f1419 100%);
    color: #e4e7eb;
    overflow-x: hidden;
    font-size: 17px;
}

.header-banner {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #3b82f6 100%);
    width: 100vw;
    padding: 40px 0;
    margin: 0;
    position: relative;
    left: 50%;
    right: 50%;
    margin-left: -50vw;
    margin-right: -50vw;
    margin-bottom: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    box-sizing: border-box;
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3);
}

.header-banner img {
    height: 150px;
    width: auto;
    max-width: 400px;
    filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
}

.header-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.header-content h1 {
    color: #ffffff;
    font-size: 2.4em;
    font-weight: 700;
    margin: 0;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.5px;
}

.header-content .tagline {
    color: #e0e7ff;
    font-style: normal;
    font-size: 1.05em;
    margin: 0;
    font-weight: 300;
}

.header-content nav {
    margin-top: 10px;
}

.header-content nav a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 5px;
    padding: 10px 20px;
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

.header-content nav a:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.2);
}

/* Post list on index page */
.post-list {
    list-style: none;
    margin-top: 40px;
}

.post-list li {
    margin-bottom: 50px;
    padding: 30px;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border-radius: 12px;
    border-left: 4px solid #6366f1;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.post-list li:hover {
    transform: translateX(8px);
    border-left-color: #8b5cf6;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.4);
}

.post-list a {
    font-size: 1.6em;
    color: #a5b4fc;
    text-decoration: none;
    display: block;
    margin-bottom: 12px;
    font-weight: 600;
    line-height: 1.3;
    transition: color 0.3s ease;
}

.post-list a:hover {
    color: #c4b5fd;
}

.post-list .date {
    display: block;
    margin-top: 10px;
    color: #94a3b8;
    font-style: normal;
    font-size: 0.85em;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

/* Individual post pages */
main {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

article h2 {
    font-size: 2.4em;
    margin-bottom: 15px;
    font-weight: 700;
    color: #a5b4fc;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

article .date {
    color: #94a3b8;
    font-style: normal;
    margin-bottom: 35px;
    display: block;
    font-size: 0.9em;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}

article h3 {
    font-size: 1.5em;
    margin-top: 2em;
    margin-bottom: 1em;
    font-weight: 600;
    color: #c4b5fd;
    border-left: 4px solid #8b5cf6;
    padding-left: 20px;
}

article p {
    margin-bottom: 1.5em;
    color: #cbd5e1;
}

article a {
    color: #60a5fa;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    font-weight: 500;
}

article a:hover {
    border-bottom: 2px solid #60a5fa;
    color: #93c5fd;
}

blockquote {
    border-left: 4px solid #8b5cf6;
    margin: 2em 0;
    padding-left: 2em;
    font-style: italic;
    color: #94a3b8;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    padding: 25px 25px 25px 2em;
    border-radius: 0 8px 8px 0;
}

footer {
    margin-top: 80px;
    padding-top: 35px;
    border-top: 2px solid #334155;
    color: #94a3b8;
    font-size: 0.9em;
    text-align: center;
}

/* Images in posts */
article img {
    max-width: 100%;
    height: auto;
    margin: 2em 0;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(99, 102, 241, 0.3);
    border: 2px solid #334155;
}

.image-caption {
    font-size: 0.9em;
    color: #94a3b8;
    font-style: italic;
    text-align: center;
    margin-top: -1.5em;
    margin-bottom: 2em;
}

/* About page headings */
main h2 {
    font-size: 1.9em;
    margin-top: 2em;
    margin-bottom: 1em;
    color: #c4b5fd;
    border-left: 4px solid #8b5cf6;
    padding-left: 20px;
    font-weight: 600;
}

main h2:first-child {
    margin-top: 0;
}