/* ════════════════════════════════════
   CANDIMATE — style.css
   ════════════════════════════════════ */

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

/* ── TOKENS ── */
:root {
  --accent:  #1a8fa0;
  --accent2: #0e7490;
  --text:    #1a2332;
  --muted:   rgba(0,0,0,.42);

  /* Glass recipe — LIGHT (Air style) */
  --glass-bg:      rgba(245,248,250,.82);
  --glass-border:  rgba(0,0,0,.08);
  --glass-blur:    blur(24px) saturate(1.8);
  --glass-shadow:  0 4px 24px rgba(0,0,0,.12), 0 1px 4px rgba(0,0,0,.08);

  /* Layout */
  --sb-w:      56px;
  --sb-gap:    8px;
  --sb-r:      100px;  /* full pill */
  --panel-r:   20px;   /* panels stay rounded but not pill */
}

/* ── DARK MODE ── */
body.dark {
  --accent:  #3bbfb0;
  --accent2: #1a8fa0;
  --text:    #e6edf3;
  --muted:   rgba(255,255,255,.45);

  --glass-bg:      rgba(18,18,20,.78);
  --glass-border:  rgba(255,255,255,.09);
  --glass-blur:    blur(22px) saturate(1.5);
  --glass-shadow:  0 8px 32px rgba(0,0,0,.45);
}

/* ── BASE ── */
html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  min-height: 100vh;
  color: var(--text);
  /* Fixed background wallpaper */
  background: center/cover fixed no-repeat;
  /* Space for floating sidebar */
  padding-left: calc(var(--sb-w) + var(--sb-gap) * 2 + 8px);
}

/* ═══════════════════════════════
   FLOATING SIDEBAR — Desktop
═══════════════════════════════ */
.sidebar {
  position: fixed;
  top: var(--sb-gap);
  left: var(--sb-gap);
  bottom: var(--sb-gap);
  width: var(--sb-w);
  z-index: 500;

  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 4px;

  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--sb-r);
  box-shadow: var(--glass-shadow);
}

/* Logo button at top */
.sb-logo-btn {
  width: 36px; height: 36px;
  border: none; background: none;
  cursor: pointer; padding: 0;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  transition: transform .2s, opacity .2s;
  margin-bottom: 6px;
  flex-shrink: 0;
}
.sb-logo-btn img {
  width: 30px; height: 30px;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0,0,0,.4));
}
.sb-logo-btn:hover { transform: scale(1.1); opacity: .85; }

/* Icon buttons */
.sb-btn {
  width: 40px; height: 40px;
  border-radius: 12px; border: none;
  cursor: pointer; background: transparent;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted);
  transition: color .18s, background .18s;
  position: relative;
}
.sb-btn svg { width: 18px; height: 18px; }
.sb-btn:hover { color: var(--text); background: rgba(0,0,0,.06); }
body.dark .sb-btn:hover { background: rgba(255,255,255,.08); }
.sb-btn.active { color: var(--accent); background: rgba(26,143,160,.1); }
.sb-btn.active::before {
  content: ''; position: absolute;
  left: 0; top: 50%; transform: translateY(-50%);
  width: 3px; height: 16px;
  border-radius: 0 3px 3px 0;
  background: var(--accent);
}
.sb-spacer { flex: 1; }

/* Upload button special */
.sb-upload-btn {
  text-decoration: none;
  color: var(--muted);
}
.sb-upload-btn:hover { color: var(--text); background: rgba(0,0,0,.06); }
body.dark .sb-upload-btn:hover { background: rgba(255,255,255,.08); }
.sb-upload-btn svg { width: 20px; height: 20px; stroke-width: 1.7; }

/* Music playing pulse */
#music-btn.playing { color: var(--accent); }
#music-btn.playing::after {
  content: ''; position: absolute; inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  animation: pulse-ring 1.8s ease-out infinite;
  opacity: 0;
}

/* Right sidebar variant */
body.sidebar-right {
  padding-left: calc(var(--sb-gap) + 8px);
  padding-right: calc(var(--sb-w) + var(--sb-gap) * 2 + 8px);
}
body.sidebar-right .sidebar { left: auto; right: var(--sb-gap); }
body.sidebar-right .sb-btn.active::before { left: auto; right: 0; border-radius: 3px 0 0 3px; }
body.sidebar-right .sb-panel { left: auto; right: calc(var(--sb-w) + var(--sb-gap) * 2 + 4px); }
body.sidebar-right .settings-popup { left: auto; right: calc(var(--sb-w) + var(--sb-gap) + 8px); }
body.sidebar-right .music-picker   { left: auto; right: calc(var(--sb-w) + var(--sb-gap) + 8px); }

/* ═══════════════════════════════
   FLOATING SEARCH PANEL
═══════════════════════════════ */
.sb-panel {
  position: fixed;
  top: var(--sb-gap);
  left: calc(var(--sb-w) + var(--sb-gap) * 2 + 4px);
  bottom: var(--sb-gap);
  width: 0;
  overflow: hidden;
  z-index: 499;

  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid transparent;
  border-radius: var(--panel-r);
  box-shadow: none;
  opacity: 0;
  pointer-events: none;

  transition: width .3s cubic-bezier(.4,0,.2,1), opacity .2s, box-shadow .2s;
  overscroll-behavior: contain;
}
.sb-panel.open {
  width: 320px;
  border-color: var(--glass-border);
  box-shadow: var(--glass-shadow);
  opacity: 1;
  pointer-events: auto;
}

.sb-panel-inner {
  width: 320px; height: 100%;
  display: flex; flex-direction: column;
  padding: 18px 14px;
  opacity: 0; transition: opacity .18s .1s;
}
.sb-panel.open .sb-panel-inner { opacity: 1; }

.sb-panel-label {
  font-size: 10px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--muted); margin-bottom: 10px;
}

/* Search input */
.sb-search-box {
  display: flex; align-items: center; gap: 8px;
  background: rgba(0,0,0,.04);
  border: 1px solid rgba(0,0,0,.08);
  border-radius: 100px;
  padding: 10px 16px; margin-bottom: 14px;
  transition: border-color .2s, background .2s;
}
.sb-search-box:focus-within {
  border-color: var(--accent);
  background: rgba(0,0,0,.06);
}
body.dark .sb-search-box { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.1); }
body.dark .sb-search-box:focus-within { background: rgba(255,255,255,.1); }
.sb-search-box svg { color: var(--muted); flex-shrink: 0; width: 14px; height: 14px; }
.sb-search-box input {
  background: none; border: none; outline: none;
  color: var(--text); font-size: 13px;
  font-family: 'DM Sans', sans-serif; width: 100%;
}
.sb-search-box input::placeholder { color: var(--muted); }

/* Results */
.sb-search-results { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 3px; overscroll-behavior: contain; }
.sb-search-results::-webkit-scrollbar { width: 3px; }
.sb-search-results::-webkit-scrollbar-thumb { background: rgba(255,255,255,.15); border-radius: 4px; }
.sb-sr-item {
  display: flex; align-items: center; gap: 12px; padding: 8px 10px;
  border-radius: 12px; cursor: pointer;
  border: 1px solid transparent; transition: background .15s;
}
.sb-sr-item:hover { background: rgba(0,0,0,.04); border-color: var(--glass-border); }
body.dark .sb-sr-item:hover { background: rgba(255,255,255,.07); }
.sb-sr-item img { width: 90px; height: 90px; object-fit: cover; border-radius: 10px; flex-shrink: 0; }
.sb-sr-name  { font-size: 14px; color: var(--text); font-weight: 600; }
.sb-sr-album { font-size: 11px; color: var(--muted); margin-top: 3px; }
.sb-sr-hint  { font-size: 12px; color: var(--muted); text-align: center; padding: 24px 0; line-height: 1.8; }

/* ═══════════════════════════════
   SUGGESTION CAROUSEL
═══════════════════════════════ */
.sb-suggestions { margin-top: 2px; display: flex; flex-direction: column; }
.sb-suggest-label { font-size: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; flex-shrink: 0; }
.sb-suggest-carousel { position: relative; overflow: hidden; border-radius: 14px; flex-shrink: 0; aspect-ratio: 1/1; width: 100%; touch-action: pan-x; }
.sb-suggest-track { display: flex; height: 100%; width: 100%; flex-wrap: nowrap; transition: transform .35s cubic-bezier(.4,0,.2,1); will-change: transform; }
.sb-suggest-slide { flex: 0 0 100%; max-width: 100%; height: 100%; min-width: 0; position: relative; cursor: pointer; overflow: hidden; }
.sb-suggest-slide img { width: 100%; height: 100%; object-fit: cover; display: block; }
.sb-suggest-caption { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(transparent, rgba(0,0,0,.7)); padding: 28px 14px 14px; }
.sb-suggest-album { font-size: 11px; color: rgba(255,255,255,.65); margin-bottom: 2px; }
.sb-suggest-name  { font-size: 15px; font-weight: 600; color: #fff; }
.sb-suggest-dots  { display: flex; justify-content: center; gap: 6px; padding: 10px 0 4px; flex-shrink: 0; }
.sb-dot {
  width: 6px; height: 6px; border-radius: 100px;
  background: rgba(255,255,255,.35); opacity: 1;
  transition: width .25s cubic-bezier(.2,0,0,1), background .25s;
  cursor: pointer; flex-shrink: 0;
}
.sb-dot.active { width: 22px; background: var(--accent); }

/* ═══════════════════════════════
   SETTINGS POPUP — Glass
═══════════════════════════════ */
.settings-popup {
  position: fixed;
  left: calc(var(--sb-w) + var(--sb-gap) + 8px);
  bottom: calc(var(--sb-gap) + 8px);
  min-width: 220px;
  padding: 16px 18px;
  z-index: 600;
  display: none;

  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--panel-r);
  box-shadow: var(--glass-shadow);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.settings-popup.open { display: block; animation: fadeUp .18s ease; }

.settings-title { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 14px; }
.settings-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.settings-row + .settings-row { margin-top: 12px; }
.settings-row label { font-size: 13px; color: var(--text); cursor: pointer; }

/* Toggle switch */
.toggle-switch { position: relative; width: 40px; height: 22px; flex-shrink: 0; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-track {
  position: absolute; inset: 0; border-radius: 100px;
  background: rgba(0,0,0,.15); cursor: pointer; transition: background .2s;
}
.toggle-track::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 16px; height: 16px; border-radius: 50%;
  background: #fff; transition: transform .2s;
  box-shadow: 0 1px 3px rgba(0,0,0,.3);
}
.toggle-switch input:checked + .toggle-track { background: var(--accent2); }
body.dark .toggle-track { background: rgba(255,255,255,.2); }
.toggle-switch input:checked + .toggle-track::after { transform: translateX(18px); background: #fff; }

/* Album list inside settings */
.settings-divider { height: 1px; background: var(--glass-border); margin: 14px 0; }
.settings-album-title { font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.settings-album-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; border-radius: 10px;
  cursor: pointer; transition: background .15s;
  color: var(--text); font-size: 13px;
  border: 1px solid transparent;
}
.settings-album-item:hover { background: rgba(0,0,0,.05); border-color: var(--glass-border); }
body.dark .settings-album-item:hover { background: rgba(255,255,255,.08); }
.settings-album-item + .settings-album-item { margin-top: 2px; }
.settings-album-count { font-size: 11px; color: var(--accent); margin-left: auto; }

/* ═══════════════════════════════
   MUSIC PICKER — Glass
═══════════════════════════════ */
.music-picker {
  position: fixed; z-index: 700;
  left: calc(var(--sb-w) + var(--sb-gap) + 8px);
  bottom: calc(var(--sb-gap) + 60px);
  width: 240px; padding: 14px;
  display: none;
  overflow-y: auto;
  overscroll-behavior: contain;

  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--panel-r);
  box-shadow: var(--glass-shadow);
}
.music-picker.open { display: block; animation: fadeUp .2s ease; }
body.sidebar-right .music-picker { left: auto; right: calc(var(--sb-w) + var(--sb-gap) + 8px); }

.music-picker-title { font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; padding-bottom: 8px; border-bottom: 1px solid var(--glass-border); }
.music-track {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px;
  border-radius: 12px; cursor: pointer; transition: background .15s;
  border: 1.5px solid transparent; margin-bottom: 4px;
}
.music-track:hover  { background: rgba(0,0,0,.05); }
body.dark .music-track:hover { background: rgba(255,255,255,.07); }
.music-track.active { background: rgba(59,191,176,.12); border-color: var(--accent); }
.music-track-icon   { width: 36px; height: 36px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), #0d6b7a); display: flex; align-items: center; justify-content: center; flex-shrink: 0; font-size: 15px; }
.music-track-info   { flex: 1; min-width: 0; }
.music-track-name   { font-size: 13px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.music-track-artist { font-size: 11px; color: var(--muted); margin-top: 1px; }
.music-track-playing { display: none; gap: 2px; align-items: flex-end; height: 14px; flex-shrink: 0; }
.music-track.active:not(.paused) .music-track-playing { display: flex; }
.music-track-playing span { width: 3px; background: var(--accent); border-radius: 2px; animation: eq-bar .8s ease-in-out infinite alternate; }
.music-track-playing span:nth-child(1) { height: 6px;  animation-delay: 0s; }
.music-track-playing span:nth-child(2) { height: 12px; animation-delay: .2s; }
.music-track-playing span:nth-child(3) { height: 8px;  animation-delay: .4s; }
.music-picker-footer { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 10px; padding-top: 10px; border-top: 1px solid var(--glass-border); }
.repeat-btn {
  display: flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 100px;
  border: 1px solid rgba(255,255,255,.12); background: transparent; cursor: pointer;
  font-size: 11px; font-weight: 600; color: var(--muted); transition: all .2s;
  font-family: 'DM Sans', sans-serif;
}
.repeat-btn:hover  { border-color: var(--accent); color: var(--accent); }
.repeat-btn.active { background: rgba(59,191,176,.15); border-color: var(--accent); color: var(--accent); }
.repeat-btn svg    { width: 13px; height: 13px; flex-shrink: 0; }

/* ═══════════════════════════════
   GALLERY + ALBUM SECTION
═══════════════════════════════ */
.album-section { margin-bottom: 8px; }

/* Album header — visible but subtle over wallpaper */
.album-header {
  display: flex; align-items: center; gap: 16px;
  padding: 24px 32px 14px;
}
.album-info { flex: 1; }
.album-title {
  font-family: 'Fraunces', serif;
  font-size: 1.2rem; font-weight: 700;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0,0,0,.6);
}
.album-date { font-size: 12px; color: rgba(255,255,255,.55); margin-top: 2px; }
.album-count {
  font-size: 12px; color: var(--accent);
  background: rgba(59,191,176,.15);
  border: 1px solid rgba(59,191,176,.25);
  padding: 3px 10px; border-radius: 100px;
  backdrop-filter: blur(8px);
}
.album-divider { height: 1px; margin: 0 32px 8px; border: none; background: linear-gradient(90deg, rgba(59,191,176,.5), transparent); }

.gallery {
  columns: 4 220px; column-gap: 12px;
  padding: 8px 32px 32px;
}
.photo-card {
  break-inside: avoid; margin-bottom: 12px; border-radius: 14px; overflow: hidden;
  cursor: pointer; position: relative;
  background: rgba(22,27,34,.85);
  box-shadow: 0 2px 14px rgba(0,0,0,.3);
  transition: transform .3s ease, box-shadow .3s ease;
  animation: fadeIn .5s ease both;
}
.photo-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,.45); }
.photo-card img   { width: 100%; display: block; transition: transform .4s ease; }
.photo-card:hover img { transform: scale(1.04); }
.photo-card .overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.75) 0%, transparent 55%);
  opacity: 0; transition: opacity .3s;
  display: flex; align-items: flex-end; padding: 12px;
}
.photo-card:hover .overlay { opacity: 1; }
.photo-name { font-size: 12px; color: #fff; font-weight: 500; letter-spacing: .04em; }
.photo-card.hidden { display: none; }

/* Empty state */
.empty {
  display: none; text-align: center; padding: 80px 24px;
  color: rgba(255,255,255,.4);
}

/* ═══════════════════════════════
   LIGHTBOX
═══════════════════════════════ */
#lightbox {
  display: none; position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,.92); backdrop-filter: blur(16px);
  align-items: center; justify-content: center; flex-direction: column;
  animation: fadeIn .2s ease;
}
#lightbox.active { display: flex; }
.lb-img-wrap {
  position: relative; max-width: 92vw; max-height: 82vh;
  display: flex; align-items: center; justify-content: center;
}
#lb-img {
  max-width: 92vw; max-height: 82vh; border-radius: 10px; object-fit: contain;
  box-shadow: 0 32px 80px rgba(0,0,0,.6); animation: zoomIn .25s ease;
  cursor: zoom-in; transform-origin: center; transition: transform .3s ease;
}
#lb-img.zoomed { cursor: zoom-out; transform: scale(2); }
.lb-bar {
  display: flex; align-items: center; justify-content: space-between;
  width: 100%; max-width: 92vw; padding: 14px 0 0; gap: 12px;
}
#lb-name    { font-size: 13px; color: rgba(255,255,255,.5); letter-spacing: .06em; flex: 1; }
#lb-counter { font-size: 13px; color: rgba(255,255,255,.4); }
.lb-btn, .lb-zoom-btn {
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15);
  color: #fff; border-radius: 100px; padding: 8px 16px;
  font-size: 13px; font-family: 'DM Sans', sans-serif; cursor: pointer;
  transition: all .2s; display: flex; align-items: center; gap: 6px;
  backdrop-filter: blur(8px);
}
.lb-btn:hover, .lb-zoom-btn:hover { background: var(--accent); border-color: var(--accent); }
.lb-close {
  position: absolute; top: 16px; right: 16px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(12px);
  color: #fff; border-radius: 50%; width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 16px; transition: all .2s;
}
.lb-close:hover { background: #e74c3c; border-color: #e74c3c; }
.lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(8px); color: #fff; border-radius: 50%;
  width: 46px; height: 46px; display: flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 20px; transition: all .2s;
}
.lb-nav:hover { background: var(--accent); border-color: var(--accent); }
.lb-prev { left: -58px; }
.lb-next { right: -58px; }

/* ═══════════════════════════════
   FOOTER
═══════════════════════════════ */
footer {
  text-align: center; padding: 28px 32px;
  color: rgba(0,0,0,.45); font-size: 13px;
  background: rgba(240,247,250,.7); backdrop-filter: blur(8px);
  border-top: 1px solid rgba(0,0,0,.06);
}
footer a { color: var(--accent); text-decoration: none; font-weight: 500; transition: opacity .2s; }
footer a:hover { opacity: .75; }
.footer-projects { margin-top: 16px; padding-top: 16px; border-top: 1px solid rgba(255,255,255,.06); }
.footer-projects-title { display: block; font-size: 11px; letter-spacing: .15em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.footer-projects-links { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.footer-projects-links a { font-size: 13px; color: var(--accent); text-decoration: none; padding: 5px 14px; border-radius: 100px; border: 1px solid rgba(59,191,176,.25); transition: all .2s; }
.footer-projects-links a:hover { background: rgba(59,191,176,.1); }
/* lass dark hoặc thuộc tính bạn dùng để kích hoạt Dark Mode */
body.dark footer {
    background: rgba(15, 18, 20, .85);
    color: rgba(255, 255, 255, .5);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255, 255, 255, .05);
}

body.dark .footer-projects {
    border-top: 1px solid rgba(255, 255, 255, .05);
}

/* Dự án Nux/Underave Dark Mode */
body.dark .footer-projects-links a {
    color: var(--accent);
    border: 1px solid rgba(255, 255, 255, .1);
    background: rgba(255, 255, 255, .02);
}

body.dark .footer-projects-links a:hover {
    background: rgba(59, 191, 176, .15); /* Màu hover đặc trưng của bạn */
}

/* ═══════════════════════════════
   ALBUM BACK BUTTON
═══════════════════════════════ */
.album-back-btn {
  display: flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15);
  backdrop-filter: blur(8px); color: #fff;
  border-radius: 100px; padding: 7px 14px;
  font-size: 12px; font-weight: 600; font-family: 'DM Sans', sans-serif;
  cursor: pointer; transition: all .2s; flex-shrink: 0;
}
.album-back-btn:hover { background: var(--accent); border-color: var(--accent); }
.album-back-btn svg  { flex-shrink: 0; }

/* ═══════════════════════════════
   YEAR BAR
═══════════════════════════════ */
.year-bar {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  padding: 20px 32px 8px;
}
.year-btn {
  padding: 6px 18px; border-radius: 100px;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.1); backdrop-filter: blur(8px);
  color: rgba(255,255,255,.65); font-size: 13px; font-weight: 600;
  font-family: 'DM Sans', sans-serif; cursor: pointer; transition: all .2s;
}
.year-btn:hover { background: rgba(255,255,255,.18); color: #fff; }
.year-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ═══════════════════════════════
   ALBUMS PAGE — GRID
═══════════════════════════════ */
.albums-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
  padding: 16px 32px 32px;
}
.album-card {
  border-radius: 18px; overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  cursor: pointer; transition: transform .25s ease, box-shadow .25s ease;
}
.album-card:hover { transform: translateY(-5px); box-shadow: 0 16px 40px rgba(0,0,0,.35); }

/* 3 ảnh bìa */
.album-card-covers {
  display: grid;
  grid-template-columns: 2fr 1fr;
  grid-template-rows: 1fr 1fr;
  height: 180px; gap: 2px;
  background: rgba(0,0,0,.2);
  overflow: hidden;
}
.album-card-covers img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .4s ease;
  min-height: 0;
}
.album-card-covers img:first-child  { grid-row: 1 / 3; grid-column: 1; }
.album-card-covers img:nth-child(2) { grid-row: 1;     grid-column: 2; }
.album-card-covers img:nth-child(3) { grid-row: 2;     grid-column: 2; }
.album-card:hover .album-card-covers img { transform: scale(1.04); }

/* Info */
.album-card-info  { padding: 14px 16px; flex-shrink: 0; }
.album-card-title { font-family: 'Fraunces', serif; font-size: 15px; font-weight: 700; color: var(--text); line-height: 1.3; margin-bottom: 8px; }
.album-card-meta  { display: flex; align-items: center; justify-content: space-between; }
.album-card-date  { font-size: 11px; color: var(--muted); }
.album-card-count {
  font-size: 11px; color: var(--accent);
  background: rgba(59,191,176,.12);
  border: 1px solid rgba(59,191,176,.22);
  padding: 2px 8px; border-radius: 100px;
}

/* ═══════════════════════════════
   LIGHTBOX — INFO POPUP
═══════════════════════════════ */
.lb-info-wrap { position: relative; }

.lb-info-popup {
  display: none; position: absolute;
  bottom: calc(100% + 10px); left: 50%; transform: translateX(-50%);
  min-width: 220px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: 14px; padding: 14px 16px;
  box-shadow: var(--glass-shadow);
  animation: fadeUp .18s ease;
  z-index: 10;
}
.lb-info-popup.open { display: block; }

.info-row { display: flex; gap: 10px; align-items: flex-start; }
.info-row + .info-row { margin-top: 10px; }
.info-label {
  font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  color: var(--muted); flex-shrink: 0; padding-top: 1px; min-width: 40px;
}
.info-value { font-size: 13px; color: var(--text); font-weight: 500; line-height: 1.4; }

#info-btn.active { background: var(--accent); border-color: var(--accent); }

/* ═══════════════════════════════
   ANIMATIONS
═══════════════════════════════ */
@keyframes fadeUp   { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn   { from { opacity: 0; } to { opacity: 1; } }
@keyframes zoomIn   { from { opacity: 0; transform: scale(.93); } to { opacity: 1; transform: scale(1); } }
@keyframes pulse-ring { 0% { transform: scale(.85); opacity: .5; } 100% { transform: scale(1.55); opacity: 0; } }
@keyframes eq-bar   { from { transform: scaleY(.4); } to { transform: scaleY(1); } }

/* ═══════════════════════════════
   MOBILE — Floating bottom bar
═══════════════════════════════ */
@media (max-width: 768px) {
  body {
    padding-left: 0 !important;
    padding-right: 0 !important;
    padding-bottom: calc(58px + var(--sb-gap) * 2 + 4px);
  }
  body.sidebar-right { padding-right: 0 !important; }

  /* Sidebar → floating bottom bar */
  .sidebar {
    top: auto !important;
    left: var(--sb-gap) !important;
    right: var(--sb-gap) !important;
    bottom: var(--sb-gap) !important;
    width: auto !important;
    height: 54px;
    flex-direction: row !important;
    padding: 0 16px !important;
    gap: 0 !important;
    justify-content: space-around;
    border-radius: var(--sb-r) !important;
  }

  /* Hide logo on mobile */
  .sb-logo-btn { display: none !important; }
  .sb-spacer   { display: none; }

  /* Active indicator: bottom dot */
  .sb-btn.active::before {
    left: 50% !important; right: auto !important;
    top: auto !important; bottom: 4px !important;
    transform: translateX(-50%) !important;
    width: 16px !important; height: 3px !important;
    border-radius: 3px 3px 0 0 !important;
  }

  /* Upload btn on mobile — plain like others */
  #sb-upload {
    background: transparent !important;
    border: none !important;
    color: var(--muted) !important;
  }
  #sb-upload svg { width: 22px; height: 22px; stroke-width: 1.6; }

  /* Search panel — floating, slide up from bottom */
  .sb-panel {
    top: var(--sb-gap) !important;
    left: var(--sb-gap) !important;
    right: var(--sb-gap) !important;
    bottom: calc(54px + var(--sb-gap) * 2) !important;
    width: auto !important;
    height: 0 !important;
    border-radius: var(--panel-r) !important;
    overflow: hidden;
    transition: height .35s cubic-bezier(.4,0,.2,1) !important;
  }
  .sb-panel.open {
    height: calc(100vh - 54px - var(--sb-gap) * 3 - 4px) !important;
    border-color: var(--glass-border) !important;
    box-shadow: var(--glass-shadow) !important;
    opacity: 1 !important;
    pointer-events: auto !important;
  }
  .sb-panel-inner { width: 100% !important; }

  /* Settings + music picker — above bottom bar, centered */
  .settings-popup {
    left: var(--sb-gap) !important; right: var(--sb-gap) !important;
    bottom: calc(54px + var(--sb-gap) * 2 + 4px) !important;
    min-width: unset; max-width: 340px;
    margin: 0 auto;
    transform: none !important;
  }
  .music-picker {
    left: var(--sb-gap) !important; right: var(--sb-gap) !important;
    bottom: calc(54px + var(--sb-gap) * 2 + 4px) !important;
    width: auto !important; max-width: 340px;
    margin: 0 auto;
    transform: none !important;
  }

  #rightsb-row   { display: none; }
  .gallery       { padding: 8px 12px 24px; columns: 2 140px; }
  .album-header  { padding: 20px 16px 10px; }
  .album-divider { margin: 0 16px 8px; }
  .lb-prev       { left: 4px; }
  .lb-next       { right: 4px; }

  /* Albums page — mobile */
  .albums-grid { grid-template-columns: 1fr 1fr; gap: 10px; padding: 10px 12px 24px; }
  .album-card-covers { height: 130px; }
  .album-card-title { font-size: 13px; }
  .year-bar { padding: 14px 12px 4px; }

  /* Lightbox info popup — mobile: bung lên toàn chiều rộng */
  .lb-info-popup {
    left: 50% !important; transform: translateX(-50%) !important;
    min-width: 260px !important; max-width: 90vw !important;
  }
  .lb-bar { flex-wrap: wrap; gap: 8px; }
}