/* Nova CMS — Evolution-inspired admin */
:root, [data-theme="dark"] {
  --bg: #0b0f1a;
  --bg-elev: #121826;
  --bg-card: #161e2e;
  --bg-soft: #1c2638;
  --border: rgba(255,255,255,.08);
  --border-strong: rgba(255,255,255,.14);
  --text: #e8eef9;
  --text-muted: #8b97ad;
  --primary: #5b8cff;
  --primary-2: #a78bfa;
  --success: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;
  --shadow: 0 8px 32px rgba(0,0,0,.35);
  --shadow-sm: 0 2px 12px rgba(0,0,0,.25);
  --radius: 14px;
  --radius-sm: 10px;
  --sidebar-w: 260px;
  --topbar-h: 64px;
  --bottom-h: 64px;
  --grad: linear-gradient(135deg, #5b8cff, #a78bfa);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-t: env(safe-area-inset-top, 0px);
}

[data-theme="light"] {
  --bg: #f4f6fb;
  --bg-elev: #ffffff;
  --bg-card: #ffffff;
  --bg-soft: #eef2f8;
  --border: rgba(15,23,42,.08);
  --border-strong: rgba(15,23,42,.14);
  --text: #0f172a;
  --text-muted: #64748b;
  --shadow: 0 8px 28px rgba(15,23,42,.08);
  --shadow-sm: 0 2px 10px rgba(15,23,42,.06);
}

*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
  max-width: 100vw;
}
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100dvh;
  font-size: 15px;
  overflow-x: hidden;
  max-width: 100vw;
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
.hidden { display: none !important; }
.muted { color: var(--text-muted); }
.grow { flex: 1; min-width: 0; }

.login-screen {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(ellipse 80% 60% at 20% 10%, rgba(91,140,255,.22), transparent 50%),
    radial-gradient(ellipse 70% 50% at 90% 80%, rgba(167,139,250,.18), transparent 45%),
    var(--bg);
}
.login-card {
  width: min(400px, 100%);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 32px 28px;
  box-shadow: var(--shadow);
}
.login-brand { text-align: center; margin-bottom: 28px; }
.login-brand h1 { margin: 12px 0 4px; font-size: 1.6rem; letter-spacing: -.02em; }
.login-sub { margin: 0; color: var(--text-muted); font-size: .9rem; }
.logo-mark { display: inline-flex; }
.logo-mark.sm { flex-shrink: 0; }
.login-form { display: grid; gap: 14px; }
.field { display: grid; gap: 6px; }
.field span { font-size: .8rem; color: var(--text-muted); font-weight: 500; }
.field input, .field select, .field textarea {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  max-width: 100%;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(91,140,255,.2);
}
.login-hint { text-align: center; color: var(--text-muted); font-size: .75rem; margin: 18px 0 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .12s, background .15s, border-color .15s, opacity .15s;
  background: var(--bg-soft);
  border-color: var(--border);
  color: var(--text);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: var(--grad);
  border: none;
  color: #fff;
  box-shadow: 0 4px 16px rgba(91,140,255,.35);
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--bg-soft); }
.btn-danger { background: rgba(248,113,113,.12); border-color: rgba(248,113,113,.3); color: var(--danger); }
.btn-sm { padding: 8px 12px; font-size: .85rem; }
.btn-block { width: 100%; }
.icon-btn {
  width: 40px; height: 40px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg-soft);
  cursor: pointer; display: grid; place-items: center;
  color: var(--text); transition: background .15s;
  flex-shrink: 0;
}
.icon-btn:hover { background: var(--bg-elev); }
.icon-btn.active {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(91,140,255,.12);
}

.app {
  display: flex;
  min-height: 100dvh;
  overflow-x: hidden;
  max-width: 100vw;
}
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: fixed; inset: 0 auto 0 0; z-index: 40;
  transition: transform .25s ease;
}
.sidebar-head {
  display: flex; align-items: center; gap: 12px;
  padding: 18px 16px; border-bottom: 1px solid var(--border);
  min-height: var(--topbar-h);
}
.sidebar-head strong { display: block; font-size: .95rem; }
.badge-soft {
  display: inline-block; font-size: .65rem; font-weight: 600;
  padding: 2px 6px; border-radius: 999px;
  background: rgba(91,140,255,.15); color: var(--primary);
}
.sidebar-close { display: none; margin-left: auto; }
.nav { padding: 12px 10px; display: grid; gap: 4px; flex: 1; overflow-y: auto; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 12px; border-radius: 10px;
  color: var(--text-muted); font-weight: 500; font-size: .92rem;
  transition: background .15s, color .15s;
}
.nav-item:hover { background: var(--bg-soft); color: var(--text); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(91,140,255,.18), rgba(167,139,250,.08));
  color: var(--text);
  box-shadow: inset 3px 0 0 var(--primary);
}
.nav-ico { width: 22px; text-align: center; opacity: .9; flex-shrink: 0; }
.sidebar-foot {
  padding: 12px; border-top: 1px solid var(--border);
  display: flex; gap: 8px; align-items: center;
}
.theme-toggle {
  flex: 1; display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--bg-soft);
  cursor: pointer; color: var(--text-muted);
}
[data-theme="dark"] .theme-sun { display: none; }
[data-theme="light"] .theme-moon { display: none; }
.sidebar-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5);
  z-index: 35; backdrop-filter: blur(2px);
}

.main-wrap {
  flex: 1; margin-left: var(--sidebar-w);
  display: flex; flex-direction: column; min-width: 0;
  min-height: 100dvh;
  overflow-x: hidden;
  max-width: 100%;
}
.topbar {
  height: var(--topbar-h);
  display: flex; align-items: center; gap: 12px;
  padding: 0 20px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elev) 85%, transparent);
  backdrop-filter: blur(12px);
  position: sticky; top: 0; z-index: 20;
  min-width: 0;
}
.menu-btn { display: none; }
.topbar-title { flex: 1; min-width: 0; overflow: hidden; }
.topbar-title h2 {
  margin: 0; font-size: 1.15rem; letter-spacing: -.02em;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-title p {
  margin: 0; font-size: .8rem;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.topbar-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--grad); color: #fff; font-weight: 700;
  display: grid; place-items: center; font-size: .85rem;
  flex-shrink: 0;
}

.content {
  padding: 20px;
  padding-bottom: calc(20px + var(--safe-b));
  flex: 1;
  min-width: 0;
  overflow-x: hidden;
  max-width: 100%;
}
.bottom-spacer {
  display: none;
  height: 0;
  flex-shrink: 0;
}

.grid { display: grid; gap: 16px; min-width: 0; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  transition: border-color .15s, transform .15s;
  min-width: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
}
.card:hover { border-color: var(--border-strong); }
.card-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 12px; flex-wrap: wrap; min-width: 0;
}
.card-head h3 { margin: 0; font-size: 1rem; min-width: 0; overflow-wrap: anywhere; }
.stat-value { font-size: 1.75rem; font-weight: 700; letter-spacing: -.03em; margin: 4px 0; }
.stat-label { color: var(--text-muted); font-size: .8rem; }
.stat-delta { font-size: .75rem; font-weight: 600; color: var(--success); }

.section-head {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin-bottom: 14px; flex-wrap: wrap;
  min-width: 0;
}
.section-head h3 { margin: 0; font-size: 1.05rem; min-width: 0; }

.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 8px; border-radius: 999px;
  font-size: .7rem; font-weight: 600;
  flex-shrink: 0;
  white-space: nowrap;
}
.badge-ok { background: rgba(52,211,153,.15); color: var(--success); }
.badge-warn { background: rgba(251,191,36,.15); color: var(--warn); }
.badge-off { background: rgba(248,113,113,.15); color: var(--danger); }
.badge-info { background: rgba(91,140,255,.15); color: var(--primary); }

.list { display: grid; gap: 8px; min-width: 0; }
.list-row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: background .15s;
  min-width: 0;
  flex-wrap: wrap;
}
.list-row:hover { background: color-mix(in srgb, var(--bg-soft) 80%, var(--primary)); }
.list-row .grow { flex: 1; min-width: 0; }
.list-row strong {
  display: block; font-size: .92rem;
  overflow-wrap: anywhere; word-break: break-word;
}
.list-row small { color: var(--text-muted); font-size: .75rem; overflow-wrap: anywhere; }
.row-actions { display: flex; gap: 6px; flex-shrink: 0; flex-wrap: wrap; }
.row-meta {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap;
  min-width: 0;
}

.spark { width: 100%; height: 56px; margin-top: 8px; max-width: 100%; }
.spark path.line { fill: none; stroke: url(#sparkGrad); stroke-width: 2.5; stroke-linecap: round; }
.spark path.area { fill: url(#sparkArea); opacity: .9; }

.activity { display: grid; gap: 10px; min-width: 0; }
.activity-item {
  display: grid; grid-template-columns: 8px minmax(0, 1fr) auto; gap: 12px; align-items: start;
  padding: 8px 0; border-bottom: 1px solid var(--border);
  min-width: 0;
}
.activity-item:last-child { border-bottom: none; }
.activity-item strong { overflow-wrap: anywhere; }
.dot { width: 8px; height: 8px; border-radius: 50%; margin-top: 6px; background: var(--primary); }
.dot.ok { background: var(--success); }
.dot.warn { background: var(--warn); }

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(140px, 100%), 1fr));
  gap: 12px;
  min-width: 0;
}
.media-item {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  position: relative;
  cursor: pointer;
  min-width: 0;
  max-width: 100%;
}
.media-item .ph {
  width: 100%; height: 100%;
  display: grid; place-items: center;
  font-size: 1.5rem; color: var(--text-muted);
  background: linear-gradient(145deg, var(--bg-soft), var(--bg-card));
}
.media-item .cap {
  position: absolute; inset: auto 0 0 0;
  padding: 6px 8px; font-size: .7rem;
  background: linear-gradient(transparent, rgba(0,0,0,.7));
  color: #fff;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

.tree { display: grid; gap: 6px; min-width: 0; }
.tree-node {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  min-width: 0;
  flex-wrap: wrap;
}
.tree-node.child { margin-left: 24px; }
.tree-node .grow { min-width: 0; }
.tree-node strong, .tree-node small { overflow-wrap: anywhere; }
.tree-ico { opacity: .6; flex-shrink: 0; }

.table-scroll {
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  max-width: 100%;
}

.bottom-nav {
  display: none;
  position: fixed; left: 0; right: 0; bottom: 0;
  height: calc(var(--bottom-h) + var(--safe-b));
  padding-bottom: var(--safe-b);
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  z-index: 30;
  grid-template-columns: repeat(5, 1fr);
}
.bn-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; font-size: .65rem; color: var(--text-muted); font-weight: 500;
  min-height: 44px;
  min-width: 0;
  padding: 4px 2px;
  overflow: hidden;
}
.bn-item > span:first-child { font-size: 1.1rem; line-height: 1; flex-shrink: 0; }
.bn-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100%;
  line-height: 1.2;
}
.bn-item.active { color: var(--primary); }

.modal-backdrop {
  position: fixed; inset: 0; z-index: 50;
  background: rgba(0,0,0,.55);
  display: grid; place-items: end center;
  padding: 0; backdrop-filter: blur(4px);
}
.modal {
  width: min(480px, 100%);
  max-height: 90dvh;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px 20px 0 0;
  box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  animation: slideUp .25s ease;
  max-width: 100vw;
}
@keyframes slideUp {
  from { transform: translateY(40px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 18px; border-bottom: 1px solid var(--border);
  gap: 8px; min-width: 0;
}
.modal-head h3 { margin: 0; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.modal-body { padding: 18px; overflow-y: auto; display: grid; gap: 14px; min-width: 0; }
.modal-foot {
  display: flex; justify-content: flex-end; gap: 8px; flex-wrap: wrap;
  padding: 14px 18px; border-top: 1px solid var(--border);
  padding-bottom: calc(14px + var(--safe-b));
}

.toast-stack {
  position: fixed; top: 16px; right: 16px; z-index: 60;
  display: grid; gap: 8px; width: min(320px, calc(100vw - 32px));
  max-width: calc(100vw - 32px);
  pointer-events: none;
}
.toast {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: var(--shadow);
  animation: toastIn .25s ease;
  font-size: .9rem;
  overflow-wrap: anywhere;
  word-break: break-word;
  max-width: 100%;
  pointer-events: auto;
}
.toast.ok { border-left-color: var(--success); }
.toast.err { border-left-color: var(--danger); }
@keyframes toastIn {
  from { transform: translateX(20px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.search-bar {
  display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap;
  min-width: 0;
}
.search-bar input {
  flex: 1; min-width: 0;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px; outline: none;
  max-width: 100%;
}
.search-bar input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(91,140,255,.2);
}

/* ===== File Manager ===== */
.fm {
  display: flex;
  flex-direction: column;
  gap: 0;
  min-width: 0;
  max-width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.fm-path {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: var(--topbar-h);
  z-index: 15;
  min-width: 0;
  overflow: hidden;
}
.fm-path-label {
  font-size: .7rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
  flex-shrink: 0;
}
.fm-breadcrumb {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  font-size: .85rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}
.fm-breadcrumb::-webkit-scrollbar { display: none; }
.fm-crumb {
  flex-shrink: 0;
  color: var(--text-muted);
  padding: 2px 4px;
  border-radius: 4px;
  cursor: pointer;
  border: none;
  background: transparent;
  font: inherit;
}
.fm-crumb:hover { color: var(--primary); background: rgba(91,140,255,.1); }
.fm-crumb.current { color: var(--text); font-weight: 600; }
.fm-crumb-sep { color: var(--text-muted); opacity: .5; flex-shrink: 0; }

.fm-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  min-width: 0;
}
.fm-toolbar-scroll {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 1;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  padding-bottom: 2px;
}
.fm-toolbar .btn { flex-shrink: 0; }
.fm-search {
  min-width: 120px;
  max-width: 220px;
  flex: 1;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  outline: none;
}
.fm-search:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(91,140,255,.2);
}
.fm-view-toggle {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
  margin-left: auto;
}

.fm-body {
  min-height: 280px;
  max-height: none;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  padding: 8px;
  min-width: 0;
}

.fm-empty {
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 48px 24px;
  text-align: center;
  color: var(--text-muted);
}
.fm-empty-ico { font-size: 2.5rem; opacity: .5; }

.fm-list { display: grid; gap: 4px; min-width: 0; }
.fm-row {
  display: grid;
  grid-template-columns: 28px 36px minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  min-width: 0;
  transition: background .12s, border-color .12s;
}
.fm-row:hover, .fm-row.selected {
  background: var(--bg-soft);
  border-color: var(--border);
}
.fm-row.selected { border-color: rgba(91,140,255,.35); background: rgba(91,140,255,.08); }
.fm-check { width: 18px; height: 18px; accent-color: var(--primary); cursor: pointer; }
.fm-ico {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: 8px;
  background: var(--bg-soft);
  font-size: 1.15rem;
  flex-shrink: 0;
}
.fm-ico.folder { background: rgba(91,140,255,.12); }
.fm-name {
  min-width: 0;
  overflow: hidden;
}
.fm-name strong {
  display: block;
  font-size: .9rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fm-name small {
  display: block;
  color: var(--text-muted);
  font-size: .72rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.fm-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text-muted);
  font-size: .75rem;
}
.fm-size { min-width: 56px; text-align: right; }
.fm-date { min-width: 90px; text-align: right; }
.fm-row-actions {
  display: none;
  gap: 4px;
  flex-shrink: 0;
}
.fm-row:hover .fm-row-actions,
.fm-row:focus-within .fm-row-actions { display: flex; }

.fm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(110px, 100%), 1fr));
  gap: 10px;
  min-width: 0;
}
.fm-tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 14px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  cursor: pointer;
  min-width: 0;
  text-align: center;
  position: relative;
  transition: border-color .12s, background .12s;
}
.fm-tile:hover, .fm-tile.selected {
  border-color: var(--primary);
  background: rgba(91,140,255,.08);
}
.fm-tile .fm-check {
  position: absolute;
  top: 8px; left: 8px;
}
.fm-tile .fm-ico {
  width: 48px; height: 48px;
  font-size: 1.5rem;
}
.fm-tile-name {
  font-size: .78rem;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
  width: 100%;
}
.fm-tile-meta {
  font-size: .65rem;
  color: var(--text-muted);
}

.fm-status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 14px;
  border-top: 1px solid var(--border);
  font-size: .75rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  background: var(--bg-elev);
}

/* Desktop modal centering */
@media (min-width: 901px) {
  .modal-backdrop { place-items: center; padding: 24px; }
  .modal { border-radius: 16px; }
  .fm-row-actions { display: flex; opacity: 0; }
  .fm-row:hover .fm-row-actions,
  .fm-row:focus-within .fm-row-actions { opacity: 1; }
}

/* ===== Mobile / tablet ≤900px ===== */
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .sidebar { transform: translateX(-105%); }
  .sidebar.open { transform: translateX(0); }
  .sidebar-close { display: grid; }
  .sidebar-overlay.show { display: block; }
  .main-wrap { margin-left: 0; }
  .menu-btn { display: grid; }
  .bottom-nav { display: grid; }

  /* Critical: content clear of fixed bottom nav */
  .content {
    padding-bottom: calc(var(--bottom-h) + var(--safe-b) + 28px);
  }
  .bottom-spacer {
    display: block;
    height: calc(var(--bottom-h) + var(--safe-b) + 8px);
  }

  .topbar { padding: 0 12px; gap: 8px; }
  .topbar-actions .btn { padding: 8px 10px; }
  .qa-label { display: none; }
  .qa-plus { font-size: 1.1rem; line-height: 1; }

  .list-row {
    flex-wrap: wrap;
    align-items: flex-start;
  }
  .list-row .grow { flex: 1 1 100%; min-width: 0; }
  .list-row .row-meta,
  .list-row > .badge,
  .list-row > .row-actions {
    margin-top: 2px;
  }
  .list-row .row-actions {
    width: 100%;
    justify-content: flex-start;
  }
  .list-row > .badge + .badge,
  .list-row .row-meta + .row-actions { }

  .tree-node {
    flex-wrap: wrap;
    align-items: flex-start;
  }
  .tree-node .grow { flex: 1 1 calc(100% - 40px); min-width: 0; }
  .tree-node > .badge,
  .tree-node > .btn {
    margin-top: 4px;
  }
  .tree-node.child { margin-left: 12px; }

  .modal {
    width: 100%;
    max-width: 100vw;
    border-radius: 16px 16px 0 0;
  }
  .modal-foot {
    padding-bottom: calc(14px + var(--safe-b));
  }

  /* Toasts above bottom nav on mobile */
  .toast-stack {
    top: auto;
    bottom: calc(var(--bottom-h) + var(--safe-b) + 12px);
    right: 12px;
    left: 12px;
    width: auto;
    max-width: none;
  }
  @keyframes toastIn {
    from { transform: translateY(16px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
  }

  .fm-path {
    top: var(--topbar-h);
  }
  .fm-toolbar {
    flex-wrap: nowrap;
  }
  .fm-toolbar-scroll {
    flex-wrap: nowrap;
  }
  .fm-search {
    min-width: 100px;
    max-width: 160px;
  }
  .fm-row {
    grid-template-columns: 28px 36px minmax(0, 1fr);
    grid-template-rows: auto auto;
  }
  .fm-meta {
    grid-column: 3;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 6px;
  }
  .fm-size, .fm-date { min-width: 0; text-align: left; }
  .fm-row-actions {
    display: flex;
    grid-column: 1 / -1;
    margin-top: 4px;
    padding-left: 72px;
  }
  .fm-row:hover .fm-row-actions { display: flex; }
}

@media (max-width: 640px) {
  .content { padding: 14px; padding-bottom: calc(var(--bottom-h) + var(--safe-b) + 28px); }
  .tree-node.child { margin-left: 8px; }
  .topbar-title h2 { font-size: 1rem; }
  .topbar-title p { display: none; }
  .fm-meta .fm-date { display: none; }
  .bn-label { font-size: .6rem; }
  .card { padding: 14px; }
  .section-head { gap: 8px; }
}

@media (max-width: 400px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .stat-value { font-size: 1.4rem; }
  .content { padding: 12px; padding-bottom: calc(var(--bottom-h) + var(--safe-b) + 32px); }
  .avatar { width: 32px; height: 32px; }
  .fm-search { display: none; }
  .media-grid { grid-template-columns: repeat(2, 1fr); }
}