/* ══════════════════════════════════════════════════════════════════════════
   RESPONSIVE — Mobile / Tablet / Desktop / Touch / DPI / Reduced motion
   This file is loaded LAST so its @media rules win on equal specificity.
   ══════════════════════════════════════════════════════════════════════════ */

/* Safe area for notched devices (iPhone X+, Android cutouts) */
@supports (padding: max(0px)) {
  .site-header {
    padding-left: max(2rem, env(safe-area-inset-left));
    padding-right: max(2rem, env(safe-area-inset-right));
    padding-top: max(1.25rem, env(safe-area-inset-top));
  }
  .section-wrap {
    padding-left: max(1.5rem, env(safe-area-inset-left));
    padding-right: max(1.5rem, env(safe-area-inset-right));
  }
  .site-footer {
    padding-bottom: max(2.5rem, env(safe-area-inset-bottom));
  }
}

/* ── Large desktop ≤ 1280px: tighten gaps ── */
@media (max-width: 1280px) {
  .player-grid {
    grid-template-columns: 200px 1fr 300px;
    gap: 2rem;
  }
  .section-wrap {
    padding: 1.75rem 1.25rem;
  }
}

/* ── Tablet landscape ≤ 1024px: stack player rows ── */
@media (max-width: 1024px) {
  .player-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  .plist-panel {
    border-left: none;
    border-top: 1px solid var(--glass-border);
    padding-left: 0;
    padding-top: 1.5rem;
    height: 220px;
  }
  .cd-wrap {
    flex-direction: row;
    justify-content: flex-start;
    gap: 1.25rem;
  }
  .cd-disc {
    width: 100px;
    height: 100px;
    flex-shrink: 0;
  }
  .cd-title { text-align: left; max-width: none; }
  .music-card { padding: 1.5rem; }
  .event-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
  }
}

/* ── Header popover full-width on small viewports ── */
@media (max-width: 900px) {
  .hdr-popover {
    position: fixed;
    top: 64px;
    right: 0.5rem;
    left: 0.5rem;
    max-width: none;
    width: auto;
  }
}

/* ── Tablet portrait ≤ 820px: compact header / two-column events ── */
@media (max-width: 820px) {
  .site-header { padding: 0.85rem 1rem; }
  .header-inner { gap: 0.75rem; flex-wrap: wrap; }
  .site-title h1 { font-size: 1.2rem; }
  .site-title p { font-size: 0.7rem; }
  .hdr-tool-btn span { display: none; }
  .hdr-tool-btn { padding: 0.55rem 0.75rem; }
  /* Cài đặt / Công cụ luôn show label vì là entry-point quan trọng */
  #btnSettings span, #btnTools span { display: inline-block; }
  .btn-admin span { display: inline; }
  .sec-search-wrap { max-width: 100%; }
  .event-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ── Phone large ≤ 640px: single column events, full-width header tools ── */
@media (max-width: 640px) {
  .section-wrap { padding: 1.25rem 0.85rem; }
  .header-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
  }
  .site-logo-link { align-self: center; }
  .hdr-tools {
    width: 100%;
    flex-wrap: wrap;
    gap: 0.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 0.65rem;
  }
  .sleep-select { flex: 1 1 140px; min-width: 0; }
  .hdr-tool-btn { flex: 1 1 auto; min-width: 0; justify-content: center; }
  .btn-admin { flex: 1 1 100px; justify-content: center; }
  .event-grid { grid-template-columns: 1fr; gap: 0.85rem; }
  .ev-card { padding: 1rem; }
  .music-card { padding: 1.25rem; }
  .player-grid { gap: 1.25rem; }

  /* Modals: take more screen real estate on phones */
  .off-mask, .sc-mask, .lm-mask { padding: 0.85rem; }
  .off-box, .sc-box, .lm-box {
    padding: 1.5rem 1.25rem;
    border-radius: 18px;
    max-height: 92vh;
  }
  .sc-list { grid-template-columns: 1fr; }
  .off-btn-row { flex-direction: column; }
  .off-btn { width: 100%; }

  /* (Section 3 player giờ tái sử dụng .player-grid của Section 1
      → đã có responsive rules ở trên, không cần override riêng) */

  /* Header tool labels (overrides) */
  .hdr-tool-btn span { display: none; }
  .hdr-tool-btn#btnRec span { display: inline-block; min-width: 38px; text-align: center; }
  /* Cài đặt / Công cụ luôn show label vì là entry-point quan trọng */
  #btnSettings span, #btnTools span { display: inline-block; }
  /* VU canvas chiếm 80px → ẩn trên phone để tránh che các nút quan trọng. User vẫn truy cập VU qua Tools nếu cần. */
  #btnVU { display: none; }

  /* Admin config modal phone tweaks */
  .cm-mask { padding: 0.85rem; }
  .cm-box {
    padding: 1.5rem 1.25rem;
    border-radius: 18px;
    max-height: 92vh;
  }
  .cm-event-grid-fields {
    grid-template-columns: 1fr;
  }
  .cm-footer-actions {
    flex-direction: column;
  }
  .cm-btn {
    width: 100%;
    justify-content: center;
  }

  /* Cue list compact */
  .cue-go-row { grid-template-columns: 1fr; }
  .cue-btn-back, .cue-btn-reset { padding: 0.65rem; }
  .cue-item { grid-template-columns: 32px 1fr auto; }
  .cue-action-group { grid-column: 1 / -1; justify-content: flex-end; }
}

/* ── Phone ≤ 480px ── */
@media (max-width: 480px) {
  .site-logo-box { width: 36px; height: 36px; font-size: 1.1rem; border-radius: 10px; }
  .site-title h1 { font-size: 1.05rem; }
  .site-title p { font-size: 0.65rem; }
  .section-label { font-size: 0.72rem; padding: 0.4rem 1rem; }
  .sleep-countdown { width: 100%; text-align: center; }

  .ctrl-area { gap: 1.1rem; }
  .btn-row { gap: 0.65rem; }
  .ctrl-btn { width: 44px; height: 44px; font-size: 1.05rem; }
  .ctrl-btn.play-btn { width: 56px; height: 56px; font-size: 1.2rem; }

  .ev-title { font-size: 0.85rem; }
  .ev-btn { padding: 0.55rem 0.75rem; font-size: 0.78rem; }
  .ev-vol-label { width: 60px; font-size: 0.65rem; }

  .footer { padding: 2rem 1rem; }
  .site-footer p { font-size: 0.72rem; line-height: 1.5; }
}

/* ── Tiny phones ≤ 360px: prevent overflow ── */
@media (max-width: 360px) {
  .site-header { padding: 0.75rem 0.65rem; }
  .section-wrap { padding: 1rem 0.65rem; }
  .music-card, .ev-card { padding: 0.9rem; }
  .ev-btn { padding: 0.5rem 0.6rem; font-size: 0.74rem; gap: 0.3rem; }
  .ev-btns { flex-wrap: wrap; }
  .ev-btn-play { flex: 1 1 100%; }
  .ev-vol-label { display: none; }
}

/* ── Landscape phones (short height) ── */
@media (max-height: 480px) and (orientation: landscape) {
  .site-header { position: static; padding: 0.65rem 1rem; }
  .plist-panel { height: 160px; }
  .cd-disc { width: 80px; height: 80px; }
  .section-wrap { padding: 1rem; }
}

/* ── Touch / coarse pointer: enlarge hit targets ── */
@media (hover: none) and (pointer: coarse) {
  .ctrl-btn { width: 48px; height: 48px; }
  .ev-btn { min-height: 44px; }
  .ev-btn-stop { min-height: 44px; }
  .plist-item { padding: 0.85rem; }
  .csl-wrap { height: 32px; }
  .csl-thumb { width: 16px; height: 16px; }
  .range-bar { height: 8px; }
  .range-bar::-webkit-slider-thumb { width: 18px; height: 18px; }
  .range-bar::-moz-range-thumb { width: 18px; height: 18px; }
  .ev-prog-bar { height: 8px; }
  .ev-prog-bar:hover { height: 8px; }
  .hdr-tool-btn, .sleep-select, .btn-admin { min-height: 42px; }
  /* Disable hover-lift transforms that get stuck on touch */
  .site-logo-link:hover,
  .hdr-tool-btn:hover,
  .ev-card:hover,
  .off-btn-primary:hover,
  .lm-submit:hover { transform: none; }
}

/* ── High-DPI: sharper borders ── */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 2dppx) {
  .ev-card, .music-card {
    border-width: 0.5px;
  }
}

/* ── Reduced motion preference ── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .cd-disc.spinning { animation: none; }
}