/* ── Reset & Variables ─────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0D0D1A;
  --surface:     #13131F;
  --surface2:    #1A1A2E;
  --border:      #2A2A40;
  --border-lite: #3A3A55;
  --text:        #E8E8F0;
  --muted:       #8888AA;
  --dim:         #555570;
  --primary:     #6C63FF;
  --primary-dk:  #4338ca;
  --primary-glow:rgba(108,99,255,0.12);
  --success:     #4ade80;
  --success-bg:  #14532d;
  --danger:      #f87171;
  --danger-bg:   #450a0a;
  --warning:     #fbbf24;
  --warning-bg:  #451a03;
  --accent:      #4ECDC4;
  --accent-bg:   rgba(78,205,196,0.1);
  --purple:      #a78bfa;
  --sidebar-w:   240px;
  --header-h:    56px;
  --radius:      10px;
  --radius-sm:   6px;
  --shadow:      0 4px 20px rgba(0,0,0,0.4);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }

/* ── Sidebar ───────────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  overflow-y: auto;
  transition: transform 0.25s ease;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--border);
  min-height: var(--header-h);
}
.brand-logo { font-size: 1.5rem; }
.brand-name { font-size: 0.9rem; font-weight: 700; color: var(--purple); }
.brand-sub  { font-size: 0.65rem; color: var(--dim); letter-spacing: 1px; text-transform: uppercase; }

.sidebar-section { padding: 12px 0 4px; }
.sidebar-label {
  padding: 4px 16px 6px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--dim);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 16px;
  color: var(--muted);
  font-size: 0.85rem;
  border-radius: 0;
  transition: background 0.1s, color 0.1s;
  position: relative;
}
.nav-item:hover  { background: var(--primary-glow); color: var(--text); }
.nav-item.active { background: var(--primary-glow); color: var(--primary); font-weight: 600; }
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--primary);
  border-radius: 0 2px 2px 0;
}

.nav-icon { font-size: 1rem; width: 20px; text-align: center; flex-shrink: 0; }
.nav-badge {
  margin-left: auto;
  background: var(--danger-bg);
  color: var(--danger);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}

.sidebar-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 8px 0;
}
.nav-logout { color: var(--danger) !important; }
.nav-logout:hover { background: rgba(248,113,113,0.1) !important; }

/* Mobile sidebar toggle */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 12px; left: 12px;
  z-index: 300;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  align-items: center;
  justify-content: center;
}
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 190;
}

/* ── Main content ──────────────────────────────────────────────────────────── */
main.with-sidebar {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
}

/* ── Page header ───────────────────────────────────────────────────────────── */
.page-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.page-header h1 { font-size: 1.3rem; font-weight: 700; }
.page-header .sub { font-size: 0.8rem; color: var(--muted); }

/* ── Content area ──────────────────────────────────────────────────────────── */
.page-content { padding: 24px 28px; }

/* ── Cards ─────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card:hover { border-color: var(--border-lite); }

/* ── Persona grid ──────────────────────────────────────────────────────────── */
.persona-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 18px;
}

.persona-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, box-shadow 0.15s;
  position: relative;
}
.persona-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-lite);
  box-shadow: var(--shadow);
}

.persona-card-img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  background: var(--surface2);
}
.persona-card-img-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface2);
  font-size: 3rem;
  color: var(--dim);
}

.persona-card-body { padding: 12px 14px 14px; }
.persona-card-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2px;
}
.persona-card-handle { font-size: 0.75rem; color: var(--muted); margin-bottom: 10px; }

.platform-icons { display: flex; gap: 6px; margin-bottom: 10px; }
.platform-icon {
  width: 22px; height: 22px;
  border-radius: 5px;
  background: var(--surface2);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

.persona-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Status badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.badge-live     { background: var(--success-bg); color: var(--success); }
.badge-building { background: var(--warning-bg); color: var(--warning); }
.badge-concept  { background: var(--surface2); color: var(--muted); border: 1px solid var(--border); }
.badge-pending  { background: var(--warning-bg); color: var(--warning); }
.badge-approved { background: var(--success-bg); color: var(--success); }
.badge-rejected { background: var(--danger-bg);  color: var(--danger); }
.badge-purple   { background: var(--primary-glow); color: var(--purple); }

.pending-badge {
  position: absolute;
  top: 10px; right: 10px;
  background: var(--warning);
  color: #000;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 3px 7px;
  border-radius: 10px;
  min-width: 22px;
  text-align: center;
}

/* ── Stat cards ─────────────────────────────────────────────────────────────── */
.stats-row { display: flex; gap: 14px; flex-wrap: wrap; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  flex: 1;
  min-width: 120px;
}
.stat-card .label { font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.stat-card .value { font-size: 1.4rem; font-weight: 700; color: var(--text); }
.stat-card .sub   { font-size: 0.72rem; color: var(--dim); margin-top: 2px; }

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
  white-space: nowrap;
}
.btn:hover       { background: var(--border); }
.btn:disabled    { opacity: 0.45; cursor: not-allowed; }
.btn-primary     { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dk); border-color: var(--primary-dk); }
.btn-success     { background: var(--success-bg); border-color: #166534; color: var(--success); }
.btn-success:hover { background: #166534; }
.btn-danger      { background: var(--danger-bg); border-color: #7f1d1d; color: var(--danger); }
.btn-danger:hover { background: #7f1d1d; }
.btn-sm          { padding: 6px 12px; font-size: 0.78rem; }
.btn-lg          { padding: 13px 28px; font-size: 0.95rem; }
.btn-ghost       { background: transparent; }
.btn-ghost:hover { background: var(--surface2); }

/* ── Forms ──────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.78rem; color: var(--muted); margin-bottom: 6px; font-weight: 600; }
.form-control {
  width: 100%;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.88rem;
  transition: border-color 0.12s;
}
.form-control:focus { outline: none; border-color: var(--primary); }
textarea.form-control { resize: vertical; min-height: 100px; }

/* ── Tabs ───────────────────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}
.tab-item {
  padding: 10px 18px;
  font-size: 0.85rem;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.12s, border-color 0.12s;
  white-space: nowrap;
}
.tab-item:hover  { color: var(--text); }
.tab-item.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* ── Posts grid ─────────────────────────────────────────────────────────────── */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}

.post-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.12s, transform 0.12s;
}
.post-card:hover { border-color: var(--primary); transform: translateY(-2px); }
.post-card.pending  { border-color: #854d0e; }
.post-card.approved { border-color: #166534; }
.post-card.rejected { border-color: #7f1d1d; opacity: 0.6; }

.post-card-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  background: var(--surface2);
}
.post-card-body { padding: 10px 12px; }
.post-card-caption {
  font-size: 0.75rem;
  color: var(--muted);
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  margin-bottom: 8px;
  line-height: 1.4;
}
.post-card-meta { display: flex; align-items: center; justify-content: space-between; }
.post-card-time { font-size: 0.68rem; color: var(--dim); }

/* ── Post review layout ─────────────────────────────────────────────────────── */
.review-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 24px;
  align-items: start;
}
@media (max-width: 900px) { .review-layout { grid-template-columns: 1fr; } }

.review-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--surface2);
}
.review-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 16px; }

/* ── QC grid ────────────────────────────────────────────────────────────────── */
.qc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
@media (max-width: 1100px) { .qc-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 700px)  { .qc-grid { grid-template-columns: repeat(2, 1fr); } }

.qc-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  transition: border-color 0.12s, transform 0.1s;
  user-select: none;
}
.qc-card:hover   { border-color: var(--primary); transform: translateY(-2px); }
.qc-card.selected { border-color: var(--accent); }
.qc-card.approved { border-color: #22c55e; }
.qc-card.rejected { border-color: #ef4444; opacity: 0.5; }
.qc-card.focused  { border-color: #FFD700; box-shadow: 0 0 0 3px rgba(255,215,0,0.2); }

.qc-card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  background: var(--surface2);
}

.qc-card-meta { padding: 7px 9px; }
.qc-card-persona { font-size: 0.78rem; font-weight: 600; color: var(--text); }
.qc-card-file    { font-size: 0.68rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.qc-card-badge {
  position: absolute; top: 7px; right: 7px;
  padding: 2px 7px;
  border-radius: 20px;
  font-size: 0.6rem;
  font-weight: 700;
}
.qc-badge-approved { background: var(--success-bg); color: var(--success); }
.qc-badge-rejected { background: var(--danger-bg);  color: var(--danger); }

.qc-checkbox {
  position: absolute; top: 7px; left: 7px;
  width: 18px; height: 18px;
  background: rgba(13,13,26,0.7);
  border: 2px solid var(--accent);
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem;
  opacity: 0;
  transition: opacity 0.12s;
}
.qc-card.selected .qc-checkbox { opacity: 1; background: var(--accent); color: #0D0D1A; }
.qc-card:hover .qc-checkbox    { opacity: 0.6; }

/* ── QC toolbar ─────────────────────────────────────────────────────────────── */
.qc-toolbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  position: sticky;
  top: 0;
  z-index: 100;
}
.progress-outer {
  flex: 1; min-width: 140px;
  background: var(--surface2);
  border-radius: 4px;
  height: 6px;
  overflow: hidden;
}
.progress-inner {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  transition: width 0.3s;
}
.progress-label { font-size: 0.68rem; color: var(--muted); }

/* ── Profile header ─────────────────────────────────────────────────────────── */
.profile-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 24px 28px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.profile-avatar {
  width: 80px; height: 80px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface2);
  border: 3px solid var(--border-lite);
  flex-shrink: 0;
}
.profile-avatar-placeholder {
  width: 80px; height: 80px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem;
  border: 3px solid var(--border-lite);
  flex-shrink: 0;
}
.profile-info h2    { font-size: 1.2rem; font-weight: 700; }
.profile-info .handle { font-size: 0.82rem; color: var(--muted); margin-bottom: 6px; }
.profile-badges { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── Toast ──────────────────────────────────────────────────────────────────── */
.toast {
  position: fixed; bottom: 24px; right: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 0.82rem;
  z-index: 2000;
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.2s;
  pointer-events: none;
  max-width: 320px;
}
.toast.show      { opacity: 1; transform: translateY(0); }
.toast.ok        { border-color: #166534; color: var(--success); }
.toast.err       { border-color: #7f1d1d; color: var(--danger); }
.toast.info      { border-color: var(--primary-dk); color: var(--purple); }

/* ── Lightbox ───────────────────────────────────────────────────────────────── */
.lightbox {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.93);
  z-index: 1000;
  align-items: center; justify-content: center; flex-direction: column;
}
.lightbox.open { display: flex; }
.lightbox img  { max-height: 85vh; max-width: 90vw; object-fit: contain; border-radius: var(--radius); }
.lightbox-meta { margin-top: 14px; text-align: center; }
.lightbox-actions { display: flex; gap: 12px; margin-top: 16px; }
.lb-nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.08);
  border: none; color: #fff;
  font-size: 1.8rem; padding: 10px 14px;
  cursor: pointer; border-radius: var(--radius);
}
.lb-nav:hover { background: rgba(255,255,255,0.16); }
.lb-prev { left: 16px; }
.lb-next { right: 16px; }

/* ── Modal ──────────────────────────────────────────────────────────────────── */
.modal {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 1000;
  align-items: center; justify-content: center;
}
.modal.open { display: flex; }
.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 36px;
  max-width: 460px;
  width: 90%;
  text-align: center;
}
.modal-icon  { font-size: 2.4rem; margin-bottom: 10px; }
.modal-box h3 { font-size: 1.1rem; margin-bottom: 8px; }
.modal-box p  { font-size: 0.85rem; color: var(--muted); margin-bottom: 6px; }
.modal-actions { display: flex; gap: 10px; justify-content: center; margin-top: 20px; }

/* ── Loading ────────────────────────────────────────────────────────────────── */
.loading { text-align: center; padding: 80px 20px; color: var(--muted); }
.spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 14px;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty { text-align: center; padding: 80px 20px; color: var(--dim); }
.empty h3 { font-size: 1.1rem; margin-bottom: 6px; color: var(--muted); }

/* ── API notice ──────────────────────────────────────────────────────────────── */
.api-notice {
  background: var(--warning-bg);
  border: 1px solid #854d0e;
  border-radius: var(--radius);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--warning);
  margin-bottom: 20px;
}

/* ── Utility ────────────────────────────────────────────────────────────────── */
.flex       { display: flex; }
.flex-col   { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.gap-2      { gap: 8px; }
.gap-3      { gap: 12px; }
.gap-4      { gap: 16px; }
.mt-1       { margin-top: 4px; }
.mt-2       { margin-top: 8px; }
.mt-3       { margin-top: 12px; }
.mt-4       { margin-top: 16px; }
.mb-4       { margin-bottom: 16px; }
.mb-6       { margin-bottom: 24px; }
.text-sm    { font-size: 0.82rem; }
.text-xs    { font-size: 0.72rem; }
.text-muted { color: var(--muted); }
.text-dim   { color: var(--dim); }
.font-mono  { font-family: monospace; }
.ml-auto    { margin-left: auto; }
.w-full     { width: 100%; }
kbd {
  display: inline-block;
  padding: 1px 6px;
  background: var(--surface2);
  border: 1px solid var(--border-lite);
  border-radius: 4px;
  font-family: monospace;
  font-size: 0.72rem;
  color: var(--muted);
}
.divider { border: none; border-top: 1px solid var(--border); margin: 20px 0; }

/* ── Persona detail sub-nav ──────────────────────────────────────────────────── */
.sub-nav {
  display: flex;
  gap: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  overflow-x: auto;
}
.sub-nav-item {
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--muted);
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color 0.12s, border-color 0.12s;
}
.sub-nav-item:hover  { color: var(--text); }
.sub-nav-item.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }

/* ── Isabella selector ───────────────────────────────────────────────────────── */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}
@media (max-width: 800px) { .compare-grid { grid-template-columns: 1fr; } }

.compare-panel {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.compare-panel.ref-panel  { border-color: var(--accent); }
.compare-panel.cand-panel { border-color: var(--primary); }

.compare-panel-label {
  padding: 9px 14px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}
.ref-panel  .compare-panel-label { color: var(--accent); background: var(--accent-bg); border-bottom: 1px solid rgba(78,205,196,0.2); }
.cand-panel .compare-panel-label { color: var(--purple); background: var(--primary-glow); border-bottom: 1px solid rgba(108,99,255,0.2); }

.compare-panel-img {
  width: 100%; aspect-ratio: 3/4;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.compare-panel-img img { width: 100%; height: 100%; object-fit: cover; }

.scene-strip {
  display: flex; gap: 6px; padding: 8px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.scene-thumb {
  flex: 1; aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: 5px;
  border: 2px solid var(--border);
  cursor: pointer;
  transition: border-color 0.12s;
}
.scene-thumb:hover  { border-color: var(--muted); }
.scene-thumb.active { border-color: var(--purple); }
.scene-thumb img    { width: 100%; height: 100%; object-fit: cover; }

.selector-actions {
  display: flex; gap: 12px; justify-content: center; align-items: center;
  padding: 16px 0 8px; flex-wrap: wrap;
}

.progress-dots {
  display: flex; justify-content: center;
  gap: 5px; padding: 10px 0; flex-wrap: wrap;
  max-width: 600px; margin: 0 auto;
}
.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: background 0.12s, transform 0.1s;
}
.dot:hover    { background: var(--primary); transform: scale(1.3); }
.dot.active   { background: var(--purple); transform: scale(1.3); }
.dot.selected { background: var(--success); }

/* ── Login page ──────────────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 40px 36px;
  width: 100%;
  max-width: 380px;
}
.login-logo { text-align: center; font-size: 2.5rem; margin-bottom: 6px; }
.login-title { text-align: center; font-size: 1.2rem; font-weight: 700; color: var(--purple); margin-bottom: 4px; }
.login-sub   { text-align: center; font-size: 0.8rem; color: var(--dim); margin-bottom: 28px; }
.login-error {
  background: var(--danger-bg);
  border: 1px solid #7f1d1d;
  color: var(--danger);
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  margin-bottom: 16px;
  text-align: center;
}

/* ── Mobile responsive ──────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .sidebar-overlay.open { display: block; }
  .sidebar-toggle { display: flex; }
  main.with-sidebar { margin-left: 0; }
  .page-header    { padding: 14px 16px; padding-left: 56px; }
  .page-content   { padding: 16px; }
  .sub-nav        { padding: 0 16px; }
  .profile-header { padding: 16px; padding-left: 56px; }
  .qc-toolbar     { padding: 10px 16px; }
  .persona-grid   { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stats-row      { gap: 10px; }
  .stat-card      { padding: 12px 14px; }
  .review-layout  { grid-template-columns: 1fr; }
  .qc-grid        { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 480px) {
  .persona-grid { grid-template-columns: repeat(2, 1fr); }
  .posts-grid   { grid-template-columns: repeat(2, 1fr); }
}