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

:root {
    --bg: #dae0e6;
    --bg-card: #ffffff;
    --bg-header: #ffffff;
    --border: #edeff1;
    --text-primary: #1c1c1c;
    --text-secondary: #878a8c;
    --text-meta: #878a8c;
    --orange: #ff4500;
    --orange-light: #fff3f0;
    --blue: #0079d3;
    --upvote: #ff4500;
    --downvote: #7193ff;
    --vote-bg: #f6f7f8;
    --font: 'IBM Plex Sans', sans-serif;
    --mono: 'IBM Plex Mono', monospace;
}

body {
    background: var(--bg);
    color: var(--text-primary);
    font-family: var(--font);
    min-height: 100vh;
    font-size: 14px;
    line-height: 1.5;
}

.site-header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.header-inner {
    max-width: 740px;
    margin: 0 auto;
    padding: 0 20px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.snake-icon { font-size: 1.4rem; line-height: 1; }

.site-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
    letter-spacing: -0.01em;
}

.site-sub {
    font-size: 0.7rem;
    color: var(--orange);
    font-family: var(--mono);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.header-nav { display: flex; gap: 4px; }

.nav-btn {
    padding: 6px 14px;
    border: 1px solid transparent;
    border-radius: 20px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    font-family: var(--font);
    transition: all 0.15s;
}

.nav-btn:hover { background: var(--vote-bg); color: var(--text-primary); }
.nav-btn.active { background: var(--orange); color: #fff; border-color: var(--orange); }

.main-content {
    max-width: 740px;
    margin: 0 auto;
    padding: 20px;
}

/* ── Post Card ── */
.post-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    display: flex;
    transition: border-color 0.15s;
    overflow: hidden;
}

.post-card:hover { border-color: #818384; }

/* ── Vote Rail ── */
.post-vote-rail {
    background: #f8f9fa;
    width: 52px;
    min-width: 52px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 4px;
    gap: 6px;
}

.vote-btn {
    width: 32px;
    height: 32px;
    border: 2px solid transparent;
    background: transparent;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1.1rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.12s;
    line-height: 1;
}

.vote-btn:hover:not(:disabled).vote-up {
    color: var(--upvote);
    background: #fff3f0;
    border-color: var(--upvote);
}

.vote-btn:hover:not(:disabled).vote-down {
    color: var(--downvote);
    background: #f0f3ff;
    border-color: var(--downvote);
}

.vote-btn.voted-up {
    color: var(--upvote) !important;
    background: #fff3f0 !important;
    border-color: var(--upvote) !important;
}

.vote-btn.voted-down {
    color: var(--downvote) !important;
    background: #f0f3ff !important;
    border-color: var(--downvote) !important;
}

.vote-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.vote-score {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--mono);
    min-width: 24px;
    text-align: center;
}

/* ── Post Content ── */
.post-content {
    padding: 10px 10px 10px 8px;
    flex: 1;
    min-width: 0;
}

.post-meta-top {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 8px;
    font-size: 0.75rem;
    color: var(--text-meta);
    flex-wrap: wrap;
}

.post-subreddit { font-weight: 600; color: var(--text-primary); }
.post-dot { color: var(--text-meta); }

.post-author {
    color: var(--blue);
    font-weight: 500;
    font-family: var(--mono);
    font-size: 0.72rem;
}

.post-body {
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text-primary);
    margin-bottom: 12px;
    word-break: break-word;
}

.post-actions { display: flex; gap: 4px; }

.action-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 8px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 2px;
    font-size: 0.75rem;
    font-weight: 500;
    font-family: var(--font);
    transition: all 0.1s;
}

.action-btn:hover:not(:disabled) { background: var(--vote-bg); color: var(--text-primary); }
.action-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── Vote Hint ── */
.vote-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
    font-size: 0.75rem;
    color: var(--text-meta);
}

.hint-sep { color: var(--border); }
.hint-up { color: var(--upvote); font-weight: 700; }
.hint-down { color: var(--downvote); font-weight: 700; }

/* ── Leaderboard ── */
.lb-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.lb-title { font-size: 1rem; font-weight: 600; color: var(--text-primary); }

.period-tabs { display: flex; gap: 4px; }

.period-btn {
    padding: 4px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.78rem;
    font-family: var(--font);
    font-weight: 500;
    transition: all 0.15s;
}

.period-btn:hover { border-color: #818384; color: var(--text-primary); }
.period-btn.active { background: var(--orange); border-color: var(--orange); color: #fff; }

.lb-list { display: flex; flex-direction: column; gap: 8px; }

.lb-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 4px;
    display: flex;
    overflow: hidden;
    transition: border-color 0.15s;
}

.lb-item:hover { border-color: #818384; }

.lb-rank-rail {
    background: #f8f9fa;
    width: 52px;
    min-width: 52px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px 4px;
    gap: 3px;
}

.lb-rank { font-size: 0.8rem; font-weight: 700; color: var(--orange); font-family: var(--mono); }
.lb-score { font-size: 0.7rem; font-weight: 600; color: var(--text-secondary); font-family: var(--mono); }

.lb-content { padding: 10px 10px 10px 8px; flex: 1; }

.lb-body {
    font-size: 0.925rem;
    line-height: 1.55;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.lb-votes {
    font-size: 0.72rem;
    color: var(--text-meta);
    display: flex;
    gap: 10px;
    font-family: var(--mono);
}

.hidden { display: none !important; }

@media (max-width: 480px) {
    .header-inner { padding: 0 12px; }
    .main-content { padding: 12px; }
    .site-sub { display: none; }
    .post-body { font-size: 0.95rem; }
    .post-vote-rail { width: 44px; min-width: 44px; }
    .lb-rank-rail { width: 44px; min-width: 44px; }
}

/* ── Vote Hint Buttons ── */
.vote-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.hint-btn {
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.78rem;
    font-weight: 500;
    font-family: var(--font);
    transition: all 0.15s;
}

.hint-btn:hover { border-color: #818384; color: var(--text-primary); }
.hint-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.hint-btn-up:hover { color: var(--upvote); border-color: var(--upvote); background: #fff3f0; }
.hint-btn-down:hover { color: var(--downvote); border-color: var(--downvote); background: #f0f3ff; }

.hint-sep { color: var(--border); font-size: 0.75rem; }

/* ── Vote Hint Buttons ── */
.vote-hint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.hint-btn {
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.78rem;
    font-weight: 500;
    font-family: var(--font);
    transition: all 0.15s;
}

.hint-btn:hover { border-color: #818384; color: var(--text-primary); }
.hint-btn:disabled { opacity: 0.35; cursor: not-allowed; }

.hint-btn-up:hover { color: var(--upvote); border-color: var(--upvote); background: #fff3f0; }
.hint-btn-down:hover { color: var(--downvote); border-color: var(--downvote); background: #f0f3ff; }

.hint-sep { color: var(--border); font-size: 0.75rem; }