/* ============================================================================
   Art Revision Manager — Main Stylesheet
   Theme: Dark Green (#1B5E20 family) + Light Gray (#F3F4F6) background
   ============================================================================ */

/* ── Custom Properties ──────────────────────────────────────────────────── */
:root {
  /* Primary — dark green */
  --color-primary:         #1B5E20;
  --color-primary-dark:    #0a3d0f;
  --color-primary-mid:     #2E7D32;
  --color-primary-light:   #388E3C;
  --color-primary-subtle:  #E8F5E9;
  --color-primary-text:    #ffffff;

  /* Backgrounds */
  --color-bg:              #F3F4F6;
  --color-surface:         #ffffff;
  --color-surface-hover:   #F9FAFB;
  --color-border:          #E5E7EB;
  --color-border-focus:    #2E7D32;

  /* Text */
  --color-text:            #111827;
  --color-text-secondary:  #4B5563;
  --color-text-muted:      #9CA3AF;

  /* Status colours */
  --color-pending:         #D97706;
  --color-pending-bg:      #FEF3C7;
  --color-approved:        #059669;
  --color-approved-bg:     #D1FAE5;
  --color-rejected:        #DC2626;
  --color-rejected-bg:     #FEE2E2;

  /* Semantic */
  --color-success:         #059669;
  --color-success-bg:      #D1FAE5;
  --color-error:           #DC2626;
  --color-error-bg:        #FEE2E2;
  --color-warning:         #D97706;
  --color-warning-bg:      #FEF3C7;
  --color-info:            #2563EB;
  --color-info-bg:         #DBEAFE;

  /* Layout */
  --sidebar-width:         240px;
  --topbar-height:         56px;
  --content-max-width:     1280px;
  --content-padding:       1.5rem;

  /* Radii */
  --radius-sm:             4px;
  --radius:                8px;
  --radius-lg:             12px;
  --radius-full:           9999px;

  /* Shadows */
  --shadow-sm:             0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow:                0 4px 6px -1px rgba(0,0,0,.08), 0 2px 4px -1px rgba(0,0,0,.05);
  --shadow-lg:             0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px -2px rgba(0,0,0,.04);

  /* Typography */
  --font-sans:             'Inter', system-ui, -apple-system, sans-serif;
  --font-mono:             'SFMono-Regular', Consolas, 'Liberation Mono', monospace;

  /* Transitions */
  --transition:            150ms ease;
}

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

html { font-size: 15px; scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-primary);
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  transition: transform var(--transition);
}

.main-content {
  margin-left: var(--sidebar-width);
  padding: var(--content-padding);
  max-width: calc(var(--content-max-width) + var(--sidebar-width));
  min-height: 100vh;
}

.main-content--auth {
  margin-left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--color-bg);
}

/* ── Sidebar Brand ───────────────────────────────────────────────────────── */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: 1.25rem 1rem;
  border-bottom: 1px solid rgba(255,255,255,.12);
  color: var(--color-primary-text);
}

.brand-icon { flex-shrink: 0; opacity: .9; }

.brand-text {
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -.01em;
  line-height: 1.2;
}

/* ── Sidebar Nav ─────────────────────────────────────────────────────────── */
.sidebar-nav {
  flex: 1;
  padding: .75rem 0;
}

.nav-section-label {
  padding: .5rem 1rem .25rem;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-top: .5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: .625rem;
  padding: .5rem 1rem;
  color: rgba(255,255,255,.8);
  font-size: .875rem;
  font-weight: 500;
  border-radius: 0;
  transition: background var(--transition), color var(--transition);
  position: relative;
}

.nav-item svg { width: 17px; height: 17px; flex-shrink: 0; opacity: .8; }

.nav-item:hover {
  background: rgba(255,255,255,.1);
  color: #fff;
}

.nav-item.active {
  background: rgba(255,255,255,.15);
  color: #fff;
  font-weight: 600;
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: rgba(255,255,255,.9);
  border-radius: 0 2px 2px 0;
}

.nav-item-danger:hover { background: rgba(220,38,38,.25); color: #fca5a5; }

/* ── Sidebar Footer ─────────────────────────────────────────────────────── */
.sidebar-footer {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: .5rem 0;
}

.role-chip {
  margin-left: auto;
  font-size: .65rem;
  padding: .1em .45em;
  background: rgba(255,255,255,.18);
  border-radius: var(--radius-full);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* ── Topbar (mobile) ────────────────────────────────────────────────────── */
.topbar {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-height);
  background: var(--color-primary);
  align-items: center;
  padding: 0 1rem;
  gap: 1rem;
  z-index: 90;
  color: #fff;
}

.menu-toggle {
  background: none;
  border: none;
  color: #fff;
  padding: .25rem;
}
.menu-toggle svg { width: 22px; height: 22px; }

.topbar-title { font-weight: 700; font-size: .95rem; }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.5);
  z-index: 99;
}

/* ── Page Header ────────────────────────────────────────────────────────── */
.page-header {
  margin-bottom: 1.5rem;
}

.page-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -.02em;
  line-height: 1.2;
}

.page-description {
  margin-top: .5rem;
  color: var(--color-text-secondary);
}

.page-actions {
  display: flex;
  gap: .5rem;
  align-items: center;
  flex-wrap: wrap;
}

/* ── Breadcrumb ─────────────────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: .375rem;
  font-size: .8125rem;
  color: var(--color-text-muted);
  margin-bottom: .5rem;
  flex-wrap: wrap;
}

.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-primary-mid); }
.breadcrumb span:not(:last-child) { color: var(--color-text-muted); }

/* ── Section header ─────────────────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 1.5rem 0 .75rem;
}

.section-title {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
}

/* ── Card ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  margin-bottom: 1.25rem;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.card-title {
  font-size: .9375rem;
  font-weight: 600;
  color: var(--color-text);
}

.card-body { padding: 1.25rem; }
.card-body.p-0 { padding: 0; }
.card-form { max-width: 760px; }
.card--full { grid-column: 1 / -1; }
.mb-4 { margin-bottom: 1.25rem; }
.mt-4 { margin-top: 1.25rem; }
.mt-2 { margin-top: .5rem; }

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .375rem;
  padding: .5rem 1rem;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  cursor: pointer;
  line-height: 1.4;
}

.btn:focus-visible { outline: 2px solid var(--color-primary-mid); outline-offset: 2px; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary-dark);
}
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-outline {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}
.btn-outline:hover { background: var(--color-surface-hover); border-color: #9CA3AF; }

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--color-bg); }

.btn-danger {
  background: var(--color-error);
  color: #fff;
  border-color: #b91c1c;
}
.btn-danger:hover { background: #b91c1c; }

.btn-success {
  background: var(--color-success);
  color: #fff;
  border-color: #047857;
}
.btn-success:hover { background: #047857; }

.btn-sm { padding: .3125rem .625rem; font-size: .8125rem; }
.btn-block { width: 100%; justify-content: center; }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group { display: flex; flex-direction: column; gap: .375rem; }
.form-group--full { grid-column: 1 / -1; }

.form-label {
  font-size: .8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.form-control {
  padding: .5625rem .75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: .875rem;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: 0 0 0 3px rgba(46,125,50,.12);
}

.form-control--lg { font-size: 1rem; padding: .75rem 1rem; }

textarea.form-control { resize: vertical; min-height: 80px; }

.form-hint {
  font-size: .75rem;
  color: var(--color-text-muted);
  font-weight: 400;
}

.form-actions {
  display: flex;
  gap: .75rem;
  justify-content: flex-end;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
}

.form-section-label {
  font-size: .6875rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: 1.25rem;
  margin-bottom: .5rem;
  padding-bottom: .375rem;
  border-bottom: 1px solid var(--color-border);
}

.required { color: var(--color-error); }

.checkbox-label {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .875rem;
  cursor: pointer;
}

/* ── Tables ──────────────────────────────────────────────────────────────── */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}

.table th {
  text-align: left;
  padding: .625rem 1rem;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.table td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.table tbody tr:last-child td { border-bottom: none; }

.table-hover tbody tr:hover { background: var(--color-surface-hover); }

.table-actions {
  display: flex;
  gap: .375rem;
  align-items: center;
  justify-content: flex-end;
  white-space: nowrap;
}

.row-muted { opacity: .55; }

/* ── Badges / Status ─────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: .2em .55em;
  border-radius: var(--radius-full);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .03em;
  white-space: nowrap;
}

.badge-neutral  { background: #F3F4F6; color: #6B7280; border: 1px solid #E5E7EB; }
.badge-warning  { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-accent   { background: var(--color-error); color: #fff; }

.status-badge {
  display: inline-flex;
  align-items: center;
  padding: .2em .6em;
  border-radius: var(--radius-full);
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.status-pending  { background: var(--color-pending-bg);  color: var(--color-pending); }
.status-approved { background: var(--color-approved-bg); color: var(--color-approved); }
.status-rejected { background: var(--color-rejected-bg); color: var(--color-rejected); }

.version-badge {
  display: inline-flex;
  align-items: center;
  padding: .15em .5em;
  border-radius: var(--radius-sm);
  font-size: .75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.version-badge--lg { font-size: .85rem; padding: .2em .6em; }
.version-badge--current { background: var(--color-primary); color: #fff; }
.ml-1 { margin-left: .25rem; }

/* Role badges */
.role-badge { padding: .2em .6em; border-radius: var(--radius-full); font-size: .7rem; font-weight: 600; }
.role-management { background: var(--color-primary-subtle); color: var(--color-primary); }
.role-artist     { background: #EFF6FF; color: #1D4ED8; }
.role-guest      { background: #F3F4F6; color: #6B7280; }

.status-dot { display: inline-flex; align-items: center; gap: .35rem; font-size: .8125rem; }
.status-dot::before { content: ''; display: inline-block; width: 7px; height: 7px; border-radius: 50%; }
.status-dot--active::before   { background: var(--color-success); }
.status-dot--inactive::before { background: var(--color-text-muted); }

/* ── Tags ────────────────────────────────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  padding: .15em .55em;
  border-radius: var(--radius-full);
  font-size: .75rem;
  font-weight: 600;
  border: 1px solid transparent;
  letter-spacing: .02em;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: .3rem;
  margin-top: .35rem;
}

.tag-checkbox-grid {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.tag-checkbox { display: flex; align-items: center; gap: .35rem; cursor: pointer; }
.tag-checkbox input { display: none; }
.tag-checkbox input:checked + .tag { opacity: 1; box-shadow: 0 0 0 2px var(--color-primary); }
.tag-checkbox .tag { opacity: .55; transition: opacity var(--transition); }
.tag-checkbox:hover .tag { opacity: .85; }

/* ── Flash Alerts ────────────────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .75rem;
  padding: .875rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: .875rem;
  border: 1px solid transparent;
  animation: slideDown .2s ease;
}

@keyframes slideDown {
  from { transform: translateY(-8px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.alert--success { background: var(--color-success-bg); color: #065F46; border-color: #6EE7B7; }
.alert--error   { background: var(--color-error-bg);   color: #7F1D1D; border-color: #FCA5A5; }
.alert--warning { background: var(--color-warning-bg); color: #78350F; border-color: #FCD34D; }
.alert--info    { background: var(--color-info-bg);    color: #1E3A8A; border-color: #93C5FD; }

.alert-close {
  background: none;
  border: none;
  font-size: 1.25rem;
  line-height: 1;
  opacity: .6;
  color: inherit;
  padding: 0;
  flex-shrink: 0;
}
.alert-close:hover { opacity: 1; }

/* ── Auth Pages ──────────────────────────────────────────────────────────── */
.auth-container {
  width: 100%;
  max-width: 420px;
  padding: 1rem;
}

.auth-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
}

.auth-logo {
  display: flex;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.auth-title {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: .25rem;
}

.auth-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: .875rem;
  margin-bottom: 1.5rem;
}

.auth-form { display: flex; flex-direction: column; gap: 1rem; }

.auth-footer {
  text-align: center;
  font-size: .8125rem;
  color: var(--color-text-muted);
  margin-top: 1.5rem;
}

.auth-footer a { color: var(--color-primary-mid); font-weight: 500; }

/* ── Dashboard Stats ─────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.125rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.stat-card--warning { border-color: var(--color-warning); }

.stat-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.stat-icon svg { width: 20px; height: 20px; }

.stat-icon--blue   { background: #DBEAFE; color: #2563EB; }
.stat-icon--green  { background: var(--color-primary-subtle); color: var(--color-primary); }
.stat-icon--purple { background: #EDE9FE; color: #7C3AED; }
.stat-icon--orange { background: #FEF3C7; color: var(--color-warning); }
.stat-icon--yellow { background: var(--color-warning-bg); color: var(--color-warning); }

.stat-value { font-size: 1.5rem; font-weight: 700; line-height: 1; }
.stat-label { font-size: .75rem; color: var(--color-text-muted); margin-top: .2rem; }

/* ── Dashboard Grid ──────────────────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

/* ── Activity Feed ───────────────────────────────────────────────────────── */
.activity-list {
  list-style: none;
  padding: .5rem 1rem;
}

.activity-item {
  display: flex;
  gap: .75rem;
  padding: .625rem 0;
  border-bottom: 1px solid var(--color-border);
}

.activity-item:last-child { border-bottom: none; }

.activity-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-text-muted);
  margin-top: .45rem;
  flex-shrink: 0;
}

.activity-dot--upload   { background: var(--color-primary-mid); }
.activity-dot--approve  { background: var(--color-success); }
.activity-dot--reject   { background: var(--color-error); }
.activity-dot--create_client, .activity-dot--create_product, .activity-dot--create_art_file { background: var(--color-info); }

.activity-content { flex: 1; }
.activity-description { font-size: .8125rem; color: var(--color-text); }
.activity-meta { font-size: .75rem; color: var(--color-text-muted); margin-top: .125rem; }

/* ── Empty State ─────────────────────────────────────────────────────────── */
.empty-state { color: var(--color-text-muted); text-align: center; padding: 1rem; }

.empty-state-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 3rem 1rem;
  text-align: center;
  color: var(--color-text-muted);
}

.empty-icon { opacity: .3; }

/* ── Detail Layout ───────────────────────────────────────────────────────── */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 480px;
}

.detail-list {
  display: grid;
  grid-template-columns: 8rem 1fr;
  gap: .5rem 1rem;
  font-size: .875rem;
}

.detail-list dt { color: var(--color-text-muted); font-weight: 500; }
.detail-list dd { color: var(--color-text); }

/* ── Product Grid ────────────────────────────────────────────────────────── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.product-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: .5rem;
  margin-bottom: .5rem;
}

.product-specs { display: flex; flex-wrap: wrap; gap: .5rem; }

/* ── Art File Grid ───────────────────────────────────────────────────────── */
.art-file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.art-file-card { display: flex; flex-direction: column; margin-bottom: 0; }

.art-file-thumb {
  height: 140px;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.art-file-thumb img { width: 100%; height: 100%; object-fit: contain; }

.art-file-card-body { padding: .875rem; flex: 1; display: flex; flex-direction: column; gap: .4rem; }

.art-file-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: .5rem;
}

.art-file-meta { margin-top: auto; }
.art-file-actions { display: flex; gap: .375rem; margin-top: .5rem; }

/* ── Revision List ───────────────────────────────────────────────────────── */
.revision-list { display: flex; flex-direction: column; gap: 1rem; }

.revision-card { margin-bottom: 0; }
.revision-card--approved { border-left: 3px solid var(--color-approved); }
.revision-card--rejected { border-left: 3px solid var(--color-rejected); }

.revision-card-body {
  display: flex;
  gap: 1rem;
  padding: 1rem;
  align-items: flex-start;
}

.revision-thumb {
  width: 80px; height: 80px;
  background: var(--color-bg);
  border-radius: var(--radius);
  overflow: hidden;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.revision-thumb img { width: 100%; height: 100%; object-fit: contain; }

.revision-info { flex: 1; min-width: 0; }

.revision-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  flex-wrap: wrap;
  margin-bottom: .375rem;
}

.revision-version { display: flex; align-items: center; gap: .375rem; flex-wrap: wrap; }
.revision-actions { display: flex; gap: .375rem; flex-wrap: wrap; }

.revision-filename {
  font-size: .875rem;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.revision-meta { margin-top: .25rem; }
.revision-notes { margin-top: .375rem; font-size: .8125rem; color: var(--color-text-secondary); font-style: italic; }
.revision-checksum {
  display: flex;
  align-items: center;
  gap: .25rem;
  margin-top: .375rem;
  font-size: .7rem;
  font-family: var(--font-mono);
}

/* ── Thumbnails ──────────────────────────────────────────────────────────── */
.thumb-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: .375rem;
  color: var(--color-text-muted);
  width: 100%;
  height: 100%;
}

.thumb-placeholder--sm { font-size: .75rem; }

.file-ext {
  font-size: .65rem;
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  padding: .1em .4em;
  border-radius: var(--radius-sm);
}

.file-ext-lg {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-text-muted);
}

/* ── Upload Drop Zone ────────────────────────────────────────────────────── */
.drop-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg);
  transition: border-color var(--transition), background var(--transition);
  position: relative;
  overflow: hidden;
}

.drop-zone.drag-over {
  border-color: var(--color-primary-mid);
  background: var(--color-primary-subtle);
}

.drop-zone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .625rem;
  padding: 2.5rem 1rem;
  text-align: center;
  color: var(--color-text-muted);
}

.drop-zone-text { font-size: 1rem; font-weight: 500; color: var(--color-text-secondary); }
.drop-zone-subtext { font-size: .8125rem; }

.drop-zone-hint {
  font-size: .75rem;
  color: var(--color-text-muted);
  margin-top: .375rem;
}

.file-input-hidden {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
  pointer-events: none;
}

.selected-file {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem;
}

.selected-file-icon { color: var(--color-primary-mid); }
.selected-file-info { flex: 1; }
.selected-file-name { font-weight: 500; font-size: .9375rem; }

/* ── Upload Progress ─────────────────────────────────────────────────────── */
.upload-progress { margin-top: 1rem; }

.progress-bar {
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary-mid);
  border-radius: var(--radius-full);
  transition: width .3s ease;
  width: 0%;
}

.progress-text {
  font-size: .8125rem;
  color: var(--color-text-secondary);
  margin-top: .375rem;
}

/* ── Compare View ────────────────────────────────────────────────────────── */
.compare-container {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: start;
}

.compare-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}

.compare-panel--current { border-color: var(--color-primary-mid); }
.compare-panel--empty { opacity: .6; }

.compare-panel-header, .compare-panel-footer {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .75rem 1rem;
  flex-wrap: wrap;
}

.compare-panel-header { border-bottom: 1px solid var(--color-border); }
.compare-panel-footer { border-top: 1px solid var(--color-border); background: var(--color-bg); }

.compare-panel-body { padding: 1rem; min-height: 300px; display: flex; align-items: center; justify-content: center; }

.compare-image { max-height: 500px; object-fit: contain; border-radius: var(--radius); }

.compare-no-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  color: var(--color-text-muted);
  padding: 2rem;
  text-align: center;
}

.compare-divider {
  display: flex;
  align-items: center;
  padding-top: 80px;
}

.compare-arrow {
  font-size: 1.5rem;
  color: var(--color-text-muted);
}

.compare-notes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* ── Specs Grid ──────────────────────────────────────────────────────────── */
.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: .75rem 1.5rem;
}

.spec-item dt { font-size: .75rem; color: var(--color-text-muted); font-weight: 500; text-transform: uppercase; letter-spacing: .05em; }
.spec-item dd { font-size: .9375rem; font-weight: 600; color: var(--color-text); }
.spec-item--full { grid-column: 1 / -1; }

/* ── Search ──────────────────────────────────────────────────────────────── */
.search-bar {
  display: flex;
  gap: .5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.search-bar .form-control { flex: 1; min-width: 200px; }

.search-summary {
  color: var(--color-text-secondary);
  font-size: .875rem;
  margin-bottom: 1rem;
}

/* ── Notifications ───────────────────────────────────────────────────────── */
.notification-list { display: flex; flex-direction: column; gap: .5rem; }

.notification-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: background var(--transition);
}

.notification-item--unread { background: var(--color-primary-subtle); border-color: #A5D6A7; }

.notification-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  margin-top: .35rem;
  flex-shrink: 0;
}

.notification-dot--active { background: var(--color-primary-mid); }

.notification-content { flex: 1; }
.notification-title { font-size: .875rem; font-weight: 500; }
.notification-body { margin-top: .2rem; }
.notification-meta { margin-top: .25rem; }

/* ── Tags Management ─────────────────────────────────────────────────────── */
.tag-management-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.25rem;
  align-items: start;
}

.color-swatch {
  display: inline-block;
  width: 14px; height: 14px;
  border-radius: var(--radius-sm);
  vertical-align: middle;
  margin-right: .25rem;
  border: 1px solid rgba(0,0,0,.1);
}

.color-picker-row { display: flex; align-items: center; gap: .75rem; }
.color-input { width: 40px; height: 36px; padding: 2px; border-radius: var(--radius); border: 1px solid var(--color-border); cursor: pointer; }
.color-presets { display: flex; gap: .35rem; flex-wrap: wrap; }
.color-preset {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), border-color var(--transition);
}
.color-preset:hover { transform: scale(1.2); border-color: rgba(0,0,0,.2); }

/* ── Profile ─────────────────────────────────────────────────────────────── */
.profile-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  align-items: start;
}

.token-display {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-top: .5rem;
  background: rgba(0,0,0,.06);
  padding: .5rem .75rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: .8rem;
  word-break: break-all;
}

.token-create-form {
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  margin-top: 1rem;
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
}

.token-create-form .form-group { flex: 1; min-width: 160px; }

/* ── Modal ───────────────────────────────────────────────────────────────── */
.modal { display: none; position: fixed; inset: 0; z-index: 200; }
.modal.modal--open { display: flex; align-items: center; justify-content: center; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,.5);
}

.modal-dialog {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 440px;
  margin: 1rem;
  animation: modalIn .2s ease;
}

@keyframes modalIn {
  from { transform: scale(.96); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem;
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 { font-size: 1rem; font-weight: 600; }
.modal-close { background: none; border: none; font-size: 1.4rem; line-height: 1; color: var(--color-text-muted); }

.modal-body { padding: 1.25rem; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: .5rem;
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--color-border);
}

/* ── Error Pages ─────────────────────────────────────────────────────────── */
.error-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  min-height: 60vh;
  text-align: center;
}

.error-code {
  font-size: 6rem;
  font-weight: 900;
  color: var(--color-primary-subtle);
  line-height: 1;
}

/* ── Utility Classes ─────────────────────────────────────────────────────── */
.text-sm { font-size: .8125rem !important; }
.text-muted { color: var(--color-text-muted) !important; }
.font-semibold { font-weight: 600; }
.link-primary { color: var(--color-primary-mid); font-weight: 500; }
.link-primary:hover { color: var(--color-primary); text-decoration: underline; }
.preserve-whitespace { white-space: pre-wrap; }
.p-4 { padding: 1rem; }

.checksum-short {
  font-family: var(--font-mono);
  font-size: .75rem;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .dashboard-grid { grid-template-columns: 1fr; }
  .profile-grid { grid-template-columns: 1fr; }
  .tag-management-grid { grid-template-columns: 1fr; }
  .compare-container { grid-template-columns: 1fr; }
  .compare-divider { display: none; }
  .compare-notes-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.sidebar--open { transform: translateX(0); }
  .sidebar-overlay.overlay--visible { display: block; }
  .topbar { display: flex; }
  .main-content {
    margin-left: 0;
    padding: var(--content-padding);
    padding-top: calc(var(--topbar-height) + 1rem);
  }
  .form-grid { grid-template-columns: 1fr; }
  .form-group--full { grid-column: 1; }
  .art-file-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .page-header-row { flex-direction: column; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .revision-card-body { flex-direction: column; }
}