/* ============================================================
   MusicBank Theme — Base Styles
   ============================================================ */

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

:root {
    --mb-primary:   #e1306c;
    --mb-primary-dark: #c1185c;
    --mb-dark:      #1a1a2e;
    --mb-mid:       #444;
    --mb-light:     #f8f8f8;
    --mb-border:    #e8e8e8;
    --mb-text:      #222;
    --mb-muted:     #888;
    --mb-radius:    10px;
    --mb-shadow:    0 2px 12px rgba(0,0,0,0.08);
    --mb-font:      -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --mb-container: 1100px;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
    font-family: var(--mb-font);
    color: var(--mb-text);
    background: #f2f2f7;
    line-height: 1.6;
    padding-bottom: 80px; /* space for global player bar */
}

a { color: var(--mb-primary); text-decoration: none; }
a:hover { opacity: 0.8; }
img { max-width: 100%; height: auto; display: block; }
h1,h2,h3,h4 { line-height: 1.3; font-weight: 700; }

/* ============================================================
   Layout
   ============================================================ */

.mb-container {
    max-width: var(--mb-container);
    margin: 0 auto;
    padding: 0 20px;
}

.mb-two-col {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 28px;
    padding-top: 28px;
    padding-bottom: 40px;
    align-items: start;
}

.mb-feed-col { min-width: 0; }
.mb-sidebar { position: sticky; top: 90px; }

.mb-main { padding: 0; }
.mb-main-centered .mb-container { max-width: 760px; padding-top: 40px; padding-bottom: 40px; }
.mb-single-container { max-width: 760px; padding-top: 32px; padding-bottom: 48px; }

/* ============================================================
   Header
   ============================================================ */

.mb-site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--mb-dark);
    box-shadow: 0 2px 8px rgba(0,0,0,0.25);
}

.mb-header-inner {
    max-width: var(--mb-container);
    margin: 0 auto;
    padding: 0 20px;
    height: 60px;
    display: flex;
    align-items: center;
    gap: 24px;
}

.mb-site-logo { flex-shrink: 0; }
.mb-logo-text { color: #fff; font-size: 22px; font-weight: 800; letter-spacing: -0.5px; }
.mb-site-logo img { height: 40px; width: auto; }

.mb-main-nav { flex: 1; }
.mb-nav-list { list-style: none; display: flex; gap: 4px; }
.mb-nav-list a { color: rgba(255,255,255,0.8); font-size: 14px; font-weight: 500; padding: 6px 12px; border-radius: 6px; transition: background 0.15s; }
.mb-nav-list a:hover,
.mb-nav-list .current-menu-item a { background: rgba(255,255,255,0.12); color: #fff; opacity: 1; }

.mb-header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.mb-header-link { color: rgba(255,255,255,0.8); font-size: 14px; font-weight: 500; }
.mb-nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.mb-nav-toggle span { display: block; width: 22px; height: 2px; background: #fff; border-radius: 2px; }

/* ============================================================
   Buttons
   ============================================================ */

.mb-btn {
    display: inline-block;
    padding: 9px 18px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    font-family: var(--mb-font);
    text-align: center;
    transition: opacity 0.2s, transform 0.1s;
    text-decoration: none;
    white-space: nowrap;
}
.mb-btn:hover { opacity: 0.88; }
.mb-btn:active { transform: scale(0.97); }
.mb-btn-primary  { background: var(--mb-primary); color: #fff; }
.mb-btn-outline  { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.5); }
.mb-btn-outline:hover { border-color: #fff; }
.mb-btn-sm { padding: 6px 14px; font-size: 13px; }

/* ============================================================
   Global audio player bar
   ============================================================ */

.mb-global-player {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 200;
    background: var(--mb-dark);
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 8px 20px;
}

.mb-global-player-inner {
    max-width: var(--mb-container);
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 16px;
}

.mb-gp-track-info { display: flex; align-items: center; gap: 10px; min-width: 180px; max-width: 240px; }
.mb-gp-thumb { width: 40px; height: 40px; border-radius: 4px; background: #333; flex-shrink: 0; overflow: hidden; }
.mb-gp-thumb img { width: 100%; height: 100%; object-fit: cover; }
.mb-gp-title { display: block; color: #fff; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mb-gp-band { display: block; color: rgba(255,255,255,0.5); font-size: 11px; }

/* ============================================================
   Widgets
   ============================================================ */

.mb-widget {
    background: #fff;
    border-radius: var(--mb-radius);
    padding: 20px;
    box-shadow: var(--mb-shadow);
    margin-bottom: 20px;
}

.mb-widget-title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--mb-muted);
    margin-bottom: 14px;
}

/* ============================================================
   Skeleton loading
   ============================================================ */

@keyframes mb-shimmer {
    0% { background-position: -400px 0; }
    100% { background-position: 400px 0; }
}

.mb-skeleton-card {
    height: 200px;
    border-radius: var(--mb-radius);
    margin-bottom: 16px;
    background: linear-gradient(90deg, #e8e8e8 25%, #f5f5f5 50%, #e8e8e8 75%);
    background-size: 800px 100%;
    animation: mb-shimmer 1.4s infinite;
}

/* ============================================================
   Tier badges (global)
   ============================================================ */

.mb-tier-badge {
    display: inline-block;
    padding: 2px 9px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.mb-tier-free    { background: #e8f5e9; color: #2e7d32; }
.mb-tier-bronze  { background: #fbe9e7; color: #bf360c; }
.mb-tier-silver  { background: #eceff1; color: #37474f; }
.mb-tier-gold    { background: #fff8e1; color: #f57f17; }

/* ============================================================
   Genre tags
   ============================================================ */

.mb-genre-tag {
    display: inline-block;
    background: rgba(225,48,108,0.1);
    color: var(--mb-primary);
    border-radius: 20px;
    padding: 2px 10px;
    font-size: 12px;
    font-weight: 500;
    margin: 2px;
}

/* ============================================================
   Footer
   ============================================================ */

.mb-site-footer {
    background: var(--mb-dark);
    color: rgba(255,255,255,0.7);
    padding: 40px 0 0;
    margin-top: 48px;
}

.mb-footer-inner {
    max-width: var(--mb-container);
    margin: 0 auto;
    padding: 0 20px 32px;
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.mb-footer-brand .mb-logo-text { color: #fff; font-size: 20px; }
.mb-footer-brand p { font-size: 13px; margin-top: 8px; max-width: 260px; }

.mb-footer-nav .mb-nav-list { flex-direction: column; gap: 2px; }
.mb-footer-nav .mb-nav-list a { color: rgba(255,255,255,0.7); font-size: 14px; }

.mb-footer-bar {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 16px 20px;
    text-align: center;
    font-size: 12px;
    max-width: var(--mb-container);
    margin: 0 auto;
}

/* ============================================================
   Empty states
   ============================================================ */

.mb-empty {
    text-align: center;
    color: var(--mb-muted);
    padding: 40px 20px;
    font-size: 15px;
}

/* ============================================================
   Page / post content
   ============================================================ */

.mb-page-title, .mb-post-title {
    font-size: 28px;
    margin-bottom: 20px;
}

.mb-page-content, .mb-post-content {
    line-height: 1.75;
    font-size: 16px;
}

.mb-post-article {
    background: #fff;
    border-radius: var(--mb-radius);
    padding: 28px;
    box-shadow: var(--mb-shadow);
}

.mb-post-image {
    margin: -28px -28px 24px;
    border-radius: var(--mb-radius) var(--mb-radius) 0 0;
    overflow: hidden;
    max-height: 400px;
}

.mb-post-image img { width: 100%; object-fit: cover; }
.mb-post-footer { margin-top: 20px; }

/* Post byline */
.mb-post-band-byline {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.mb-byline-logo { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; }
.mb-byline-name { font-weight: 600; font-size: 15px; color: var(--mb-text); }
.mb-byline-date { font-size: 13px; color: var(--mb-muted); margin-left: auto; }

/* Comments */
.mb-comments-wrap { margin-top: 32px; }
.mb-comments-title { font-size: 20px; margin-bottom: 16px; }
.mb-no-comments { color: var(--mb-muted); font-size: 14px; }
.mb-comment-list { list-style: none; }
.mb-textarea { width: 100%; padding: 10px; border: 1px solid var(--mb-border); border-radius: 8px; font-family: var(--mb-font); font-size: 14px; resize: vertical; }

/* ============================================================
   Social links (inline on About tab)
   ============================================================ */

.mb-social-links { margin-top: 20px; }
.mb-social-links h3 { font-size: 16px; margin-bottom: 10px; }
.mb-social-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--mb-light);
    border-radius: 20px;
    padding: 5px 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--mb-text);
    margin: 4px;
    transition: background 0.15s;
}
.mb-social-link:hover { background: var(--mb-border); opacity: 1; }

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 860px) {
    .mb-two-col { grid-template-columns: 1fr; }
    .mb-sidebar { position: static; }
    .mb-main-nav { display: none; }
    .mb-main-nav.mb-nav-open { display: block; position: absolute; top: 60px; left: 0; right: 0; background: var(--mb-dark); padding: 16px 20px; z-index: 99; }
    .mb-main-nav.mb-nav-open .mb-nav-list { flex-direction: column; }
    .mb-nav-toggle { display: flex; }
    .mb-global-player-inner { flex-wrap: wrap; gap: 8px; }
    .mb-gp-track-info { min-width: 0; max-width: none; flex: 1; }
}

@media (max-width: 520px) {
    .mb-header-inner { gap: 12px; }
    .mb-post-image { margin: -20px -20px 18px; }
    .mb-post-article { padding: 20px; }
}