/* ── Peptide CEO — Personal blog styles ── */

:root {
    --ceo-text: #1a1a1a;
    --ceo-text-secondary: #6b6b6b;
    --ceo-accent: #2a7c6f;
    --ceo-accent-light: #e8f5f2;
    --ceo-bg: #fafaf8;
    --ceo-card-bg: #fff;
    --ceo-border: #e5e5e0;
    --ceo-link: #2a7c6f;
}

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

body {
    font-family: 'Lora', Georgia, serif;
    color: var(--ceo-text);
    background: var(--ceo-bg);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

.ceo-container {
    max-width: 680px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ── Header ── */
.ceo-header {
    border-bottom: 1px solid var(--ceo-border);
    padding: 1.25rem 0;
    background: var(--ceo-card-bg);
    border-top: 3px solid var(--ceo-accent);
}
.ceo-header .ceo-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.ceo-logo {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--ceo-text);
    text-decoration: none;
    letter-spacing: -.02em;
}
.ceo-logo span {
    color: var(--ceo-accent);
}
.ceo-nav {
    display: flex;
    gap: 1.5rem;
}
.ceo-nav a {
    font-family: 'Inter', sans-serif;
    font-size: .88rem;
    font-weight: 500;
    color: var(--ceo-text-secondary);
    text-decoration: none;
    transition: color .15s;
}
.ceo-nav a:hover {
    color: var(--ceo-accent);
}

/* ── Main ── */
.ceo-main {
    flex: 1;
    padding: 3rem 0 4rem;
}

/* ── Hero ── */
.ceo-hero {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--ceo-border);
}
.ceo-hero-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 1.15rem;
    font-weight: 500;
    line-height: 1.6;
    color: var(--ceo-card-bg);
    background: linear-gradient(135deg, #2a7c6f 0%, #1a6b5a 40%, #3d8b7f 100%);
    padding: 1.25rem 1.5rem;
    border-radius: 12px;
}
.ceo-hero-subtitle a {
    color: #a8f0e0;
    text-decoration: none;
    font-weight: 700;
}
.ceo-hero-subtitle a:hover { text-decoration: underline; color: #fff; }

/* ── Post list ── */
.ceo-post-preview {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--ceo-border);
}
.ceo-post-preview:last-child {
    border-bottom: none;
}
.ceo-post-preview a {
    text-decoration: none;
    color: inherit;
    display: block;
}
.ceo-post-preview time {
    font-family: 'Inter', sans-serif;
    font-size: .8rem;
    color: var(--ceo-text-secondary);
    text-transform: uppercase;
    letter-spacing: .04em;
}
.ceo-post-preview h2 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.4rem;
    letter-spacing: -.02em;
    margin: .35rem 0 .5rem;
    line-height: 1.3;
    color: var(--ceo-text);
    transition: color .15s;
}
.ceo-post-preview a:hover h2 {
    color: var(--ceo-accent);
}
.ceo-post-preview p {
    font-size: .95rem;
    color: var(--ceo-text-secondary);
    line-height: 1.65;
}
.ceo-read-more {
    font-family: 'Inter', sans-serif;
    font-size: .85rem;
    font-weight: 600;
    color: var(--ceo-accent);
    margin-top: .5rem;
    display: inline-block;
}

/* ── Article detail ── */
.ceo-article-header {
    margin-bottom: 2.5rem;
}
.ceo-article-header time {
    font-family: 'Inter', sans-serif;
    font-size: .8rem;
    color: var(--ceo-text-secondary);
    text-transform: uppercase;
    letter-spacing: .04em;
}
.ceo-read-time {
    font-family: 'Inter', sans-serif;
    font-size: .8rem;
    color: var(--ceo-text-secondary);
    margin-left: .75rem;
}
.ceo-read-time::before {
    content: '\00b7';
    margin-right: .75rem;
}
.ceo-article-header h1 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 2.2rem;
    letter-spacing: -.03em;
    line-height: 1.2;
    margin-top: .6rem;
}

/* ── Article body ── */
.ceo-article-body {
    font-size: 1.05rem;
    line-height: 1.8;
}
.ceo-article-body h2 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.4rem;
    letter-spacing: -.02em;
    margin-top: 2.5rem;
    margin-bottom: .75rem;
    color: var(--ceo-accent);
}
.ceo-article-body h3 {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 1.15rem;
    margin-top: 2rem;
    margin-bottom: .5rem;
}
.ceo-article-body p {
    margin-bottom: 1.4rem;
}
.ceo-article-body a {
    color: var(--ceo-link);
    text-decoration: underline;
    text-underline-offset: 2px;
}
.ceo-article-body a:hover {
    color: var(--ceo-text);
}
.ceo-article-body ul, .ceo-article-body ol {
    margin-bottom: 1.4rem;
    padding-left: 1.5rem;
}
.ceo-article-body li {
    margin-bottom: .4rem;
    line-height: 1.7;
}
.ceo-article-body blockquote {
    border-left: 3px solid var(--ceo-accent);
    padding: .75rem 1.25rem;
    margin: 1.5rem 0;
    background: var(--ceo-accent-light);
    border-radius: 0 8px 8px 0;
}
.ceo-article-body blockquote p {
    margin-bottom: 0;
    color: var(--ceo-text-secondary);
    font-style: italic;
}
.ceo-article-body strong {
    font-weight: 600;
}
.ceo-article-body img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.12);
    margin: 1rem 0 2rem;
}

/* ── Author card ── */
.ceo-article-footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--ceo-border);
}
.ceo-author-card {
    background: var(--ceo-accent-light);
    border-radius: 12px;
    padding: 1.5rem;
}
.ceo-author-name {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: .95rem;
    margin-bottom: .3rem;
}
.ceo-author-bio {
    font-size: .9rem;
    color: var(--ceo-text-secondary);
    line-height: 1.6;
}
.ceo-author-bio a {
    color: var(--ceo-accent);
    text-decoration: none;
    font-weight: 600;
}
.ceo-author-bio a:hover { text-decoration: underline; }

/* ── More posts ── */
.ceo-more-posts {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--ceo-border);
}
.ceo-more-posts h3 {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--ceo-text-secondary);
    text-transform: uppercase;
    letter-spacing: .04em;
    font-size: .8rem;
}
.ceo-more-post-link {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: .75rem 0;
    border-bottom: 1px solid var(--ceo-border);
    text-decoration: none;
    color: inherit;
    gap: 1rem;
}
.ceo-more-post-link:last-child { border-bottom: none; }
.ceo-more-post-link:hover .ceo-more-post-title {
    color: var(--ceo-accent);
}
.ceo-more-post-title {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: .95rem;
    transition: color .15s;
}
.ceo-more-post-link time {
    font-family: 'Inter', sans-serif;
    font-size: .78rem;
    color: var(--ceo-text-secondary);
    white-space: nowrap;
}

/* ── Footer ── */
.ceo-footer {
    border-top: 1px solid var(--ceo-border);
    padding: 2.5rem 0;
    background: var(--ceo-card-bg);
}
.ceo-footer-inner {
    text-align: center;
}
.ceo-footer-brand {
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--ceo-text);
    letter-spacing: -.02em;
}
.ceo-footer-brand span {
    color: var(--ceo-accent);
}
.ceo-footer-tagline {
    font-size: .85rem;
    color: var(--ceo-text-secondary);
    margin-top: .25rem;
}
.ceo-footer-tagline a {
    color: var(--ceo-accent);
    text-decoration: none;
}
.ceo-footer-tagline a:hover { text-decoration: underline; }
.ceo-footer-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1rem;
}
.ceo-footer-links a {
    font-family: 'Inter', sans-serif;
    font-size: .82rem;
    color: var(--ceo-text-secondary);
    text-decoration: none;
}
.ceo-footer-links a:hover { color: var(--ceo-accent); }
.ceo-footer-copy {
    font-family: 'Inter', sans-serif;
    font-size: .75rem;
    color: #aaa;
    margin-top: .75rem;
}

/* ── Responsive ── */
@media (max-width: 575.98px) {
    .ceo-hero h1 { font-size: 1.6rem; }
    .ceo-article-header h1 { font-size: 1.7rem; }
    .ceo-post-preview h2 { font-size: 1.2rem; }
    .ceo-container { padding: 0 1.25rem; }
}