:root {
    --bg: #f5f5f0;
    --card-bg: #ffffff;
    --text: #14171a;
    --text-secondary: #536471;
    --accent: #1a8cd8;
    --border: #e0ddd5;
    --hover: #f7f7f2;
    --media-bg: #e8e6df;
    --link: #1a6ba8;
    --font-body: 'Libre Franklin', 'Helvetica Neue', Helvetica, sans-serif;
    --font-display: 'Newsreader', 'Georgia', serif;
}

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

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
    max-width: 620px;
    margin: 0 auto;
    padding: 20px 16px;
}

/* --- Tweet card --- */
.tweet-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    transition: box-shadow 0.15s ease;
}
.tweet-card:hover {
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}
.tweet-card a.tweet-link {
    color: inherit;
    text-decoration: none;
    display: block;
}
.tweet-card a.tweet-link:hover { text-decoration: none; }

.tweet-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}
.avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    flex-shrink: 0;
}
.author-info { flex: 1; min-width: 0; }
.display-name {
    font-weight: 700;
    font-size: 15px;
    color: var(--text);
}
.handle {
    color: var(--text-secondary);
    font-size: 14px;
}

.tweet-text {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 12px;
    word-wrap: break-word;
    overflow-wrap: break-word;
}
.tweet-text a { color: var(--accent); }
.tweet-text .hashtag { color: var(--accent); }
.tweet-text .mention { color: var(--accent); }

.tweet-media {
    margin-bottom: 12px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border);
}
.tweet-media img {
    width: 100%;
    display: block;
}

.tweet-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    padding-top: 12px;
    border-top: 1px solid var(--border);
}
.tweet-meta .date { flex: 1; }
.tweet-meta .stat { display: flex; align-items: center; gap: 4px; }
.tweet-meta .stat svg { width: 16px; height: 16px; fill: var(--text-secondary); }

.reply-indicator {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* --- Page header --- */
.site-header {
    text-align: center;
    padding: 40px 0 24px;
}
.site-header .avatar {
    width: 72px;
    height: 72px;
    margin: 0 auto 12px;
    display: block;
}
.site-header h1 {
    font-family: var(--font-display);
    font-size: 26px;
    font-weight: 500;
    margin-bottom: 2px;
}
.site-header .handle-line {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 8px;
}
.site-header .bio {
    color: var(--text-secondary);
    font-size: 14px;
    max-width: 400px;
    margin: 0 auto;
}

/* --- Index pages --- */
.breadcrumb {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--accent); }

.year-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-top: 20px;
}
.year-card, .month-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: box-shadow 0.15s ease, border-color 0.15s ease;
}
.year-card:hover, .month-card:hover {
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    border-color: var(--accent);
    text-decoration: none;
}
.year-card .year-label, .month-card .month-label {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 500;
    color: var(--text);
    display: block;
}
.year-card .count, .month-card .count {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* --- Pinned tweet --- */
.pinned-section {
    margin: 0 0 28px 0;
}
.pinned-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 600;
    margin-bottom: 8px;
}
.pinned-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px 20px;
}
.pinned-text {
    font-size: 15px;
    line-height: 1.55;
    color: var(--text-primary);
    margin-bottom: 12px;
}
.pinned-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}
.pinned-date { flex: 1; }
.pinned-stats { font-weight: 500; }
.pinned-link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}
.pinned-link:hover { text-decoration: underline; }

/* --- Single tweet page --- */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}
.back-link:hover { color: var(--accent); text-decoration: none; }

.tweet-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    gap: 12px;
}
.tweet-nav a {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: border-color 0.15s ease;
}
.tweet-nav a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.tweet-nav .nav-prev { text-align: left; }
.tweet-nav .nav-next { text-align: right; }
.tweet-nav .nav-label { font-size: 11px; display: block; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.7; }
.tweet-nav .nav-date { font-size: 13px; display: block; }

.single-tweet .tweet-text {
    font-size: 20px;
    line-height: 1.65;
}

/* --- Search --- */
.search-box {
    display: flex;
    gap: 8px;
    margin: 0 auto 28px;
    max-width: 420px;
}
.search-box input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 15px;
    background: var(--card-bg);
    color: var(--text);
    outline: none;
}
.search-box input:focus { border-color: var(--accent); }
.search-box button {
    padding: 10px 16px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: 15px;
    cursor: pointer;
}
.search-box button:hover { opacity: 0.9; }

.search-result {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 16px;
    margin-bottom: 10px;
    transition: box-shadow 0.15s ease;
}
.search-result:hover { box-shadow: 0 2px 12px rgba(0,0,0,0.06); }
.search-result a { color: inherit; text-decoration: none; display: block; }
.search-result a:hover { text-decoration: none; }
.search-result .result-text { font-size: 15px; margin-bottom: 6px; }
.search-result .result-date { font-size: 13px; color: var(--text-secondary); }
.search-result mark { background: #fff3b0; border-radius: 2px; }

#search-status { text-align: center; color: var(--text-secondary); font-size: 14px; margin-bottom: 16px; }

/* --- Footer --- */
.site-footer {
    text-align: center;
    padding: 32px 0;
    font-size: 13px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    margin-top: 40px;
}

@media (max-width: 480px) {
    .container { padding: 12px; }
    .tweet-card { padding: 16px; }
    .year-grid { grid-template-columns: repeat(2, 1fr); }
}