/* ═══════════════════════════════════════════════
   VisionAI — Admin Panel Stylesheet
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

/* ─── Variables ─── */
:root {
  --gold:          #C9A84C;
  --gold-light:    #E8C96A;
  --gold-pale:     rgba(201,168,76,0.10);
  --gold-border:   rgba(201,168,76,0.20);

  --bg:            #0A0A0B;
  --bg2:           #111113;
  --bg3:           #17171A;
  --surface:       #1E1E24;
  --surface2:      #26262E;

  --text:          #F0EEE8;
  --text-dim:      #8A887F;
  --text-mid:      #C4C1B8;

  --green:         #22C55E;
  --green-pale:    rgba(34,197,94,0.10);
  --red:           #EF4444;
  --red-pale:      rgba(239,68,68,0.10);
  --blue:          #3B7FFF;
  --blue-pale:     rgba(59,127,255,0.10);
  --yellow:        #EAB308;
  --yellow-pale:   rgba(234,179,8,0.10);

  --border:        rgba(255,255,255,0.07);
  --radius:        12px;
  --radius-sm:     8px;
  --transition:    0.2s cubic-bezier(0.4,0,0.2,1);

  --sidebar-w:     240px;
  --topbar-h:      64px;

  --font-display:  'Bebas Neue', sans-serif;
  --font-body:     'DM Sans', sans-serif;
}

/* ─── Reset ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); }

/* ═══════════════════════════════
   LAYOUT
═══════════════════════════════ */
.admin-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  grid-template-rows: var(--topbar-h) 1fr;
  min-height: 100vh;
}

/* ─── SIDEBAR ─── */
.sidebar {
  grid-row: 1 / -1;
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  overflow-y: auto;
  z-index: 200;
  scrollbar-width: thin;
  scrollbar-color: var(--surface2) transparent;
  transition: transform var(--transition);
}

.sidebar__logo {
  padding: 22px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar__logo-mark {
  font-family: var(--font-display);
  font-size: 22px;
  letter-spacing: 2px;
  color: var(--text);
  white-space: nowrap;
}

.sidebar__logo-mark span { color: var(--gold); }

.sidebar__logo-dot {
  width: 7px; height: 7px;
  background: var(--gold);
  border-radius: 50%;
  flex-shrink: 0;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:.4; transform:scale(.7); }
}

/* Role pill */
.sidebar__role {
  margin: 14px 16px;
  background: var(--gold-pale);
  border: 1px solid var(--gold-border);
  border-radius: 100px;
  padding: 5px 12px;
  font-size: 11px;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  text-align: center;
}

/* Nav groups */
.sidebar__nav { flex: 1; padding: 8px 0; }

.sidebar__group-label {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 1.2px;
  text-transform: uppercase;
  padding: 16px 20px 6px;
}

.sidebar__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  margin: 1px 8px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--text-dim);
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
}

.sidebar__item:hover {
  background: var(--surface);
  color: var(--text);
}

.sidebar__item.active {
  background: var(--gold-pale);
  color: var(--gold);
  font-weight: 500;
}

.sidebar__item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 20px;
  background: var(--gold);
  border-radius: 0 2px 2px 0;
  margin-left: -8px;
}

.sidebar__icon {
  width: 18px; height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 15px;
}

.sidebar__badge {
  margin-left: auto;
  background: var(--red);
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
}

/* User info bottom */
.sidebar__user {
  padding: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
}

.sidebar__avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--surface2);
  border: 2px solid var(--gold-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 600;
  color: var(--gold);
  flex-shrink: 0;
  overflow: hidden;
}

.sidebar__avatar img { width:100%; height:100%; object-fit:cover; }

.sidebar__user-info { flex: 1; min-width: 0; }
.sidebar__user-name { font-size: 13px; font-weight: 500; truncate: ellipsis; white-space: nowrap; overflow: hidden; }
.sidebar__user-email { font-size: 11px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.sidebar__logout {
  color: var(--text-dim);
  font-size: 16px;
  padding: 4px;
  border-radius: 6px;
  border: none;
  background: none;
  transition: color var(--transition);
  flex-shrink: 0;
}
.sidebar__logout:hover { color: var(--red); }

/* ─── TOPBAR ─── */
.topbar {
  grid-column: 2;
  position: fixed;
  top: 0;
  left: var(--sidebar-w);
  right: 0;
  height: var(--topbar-h);
  background: rgba(10,10,11,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  z-index: 100;
}

.topbar__title {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 1px;
  color: var(--text);
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar__credits {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--gold-pale);
  border: 1px solid var(--gold-border);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gold);
}

.topbar__credits svg { flex-shrink: 0; }

.topbar__notification {
  position: relative;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: var(--text-dim);
  transition: all var(--transition);
}
.topbar__notification:hover { background: var(--surface2); color: var(--text); }

.topbar__notification-dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 7px; height: 7px;
  background: var(--red);
  border-radius: 50%;
  border: 1px solid var(--bg);
}

.topbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  padding: 4px;
}
.topbar__hamburger span { display:block; width:22px; height:2px; background:var(--text); border-radius:2px; }

/* ─── MAIN CONTENT ─── */
.main-content {
  grid-column: 2;
  margin-top: var(--topbar-h);
  padding: 28px;
  min-height: calc(100vh - var(--topbar-h));
}

/* ═══════════════════════════════
   COMPONENTS
═══════════════════════════════ */

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 20px;
}
.breadcrumb a { color: var(--text-dim); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--text); }
.breadcrumb .sep { opacity: 0.4; }
.breadcrumb .current { color: var(--text); }

/* Page header */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.page-header__title {
  font-family: var(--font-display);
  font-size: 32px;
  letter-spacing: 1px;
  color: var(--text);
  line-height: 1;
}

.page-header__sub {
  font-size: 14px;
  color: var(--text-dim);
  margin-top: 6px;
  line-height: 1.5;
}

.page-header__actions {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

/* ─── STAT CARDS ─── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition);
}

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

.stat-card__icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  margin-bottom: 14px;
}

.stat-card__icon.gold   { background: var(--gold-pale);   border: 1px solid var(--gold-border); }
.stat-card__icon.green  { background: var(--green-pale);  border: 1px solid rgba(34,197,94,0.2); }
.stat-card__icon.blue   { background: var(--blue-pale);   border: 1px solid rgba(59,127,255,0.2); }
.stat-card__icon.red    { background: var(--red-pale);    border: 1px solid rgba(239,68,68,0.2); }
.stat-card__icon.yellow { background: var(--yellow-pale); border: 1px solid rgba(234,179,8,0.2); }

.stat-card__val {
  font-family: var(--font-display);
  font-size: 36px;
  letter-spacing: 1px;
  color: var(--text);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-card__label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

.stat-card__change {
  position: absolute;
  top: 18px; right: 18px;
  font-size: 12px;
  font-weight: 500;
  padding: 3px 8px;
  border-radius: 100px;
}

.stat-card__change.up   { color: var(--green);  background: var(--green-pale); }
.stat-card__change.down { color: var(--red);    background: var(--red-pale); }

/* ─── CARD ─── */
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}

.card-title {
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.8px;
  color: var(--text);
}

.card-body { padding: 20px; }

/* ─── TABLE ─── */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

thead th {
  background: var(--bg3);
  padding: 11px 16px;
  text-align: left;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.7px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid rgba(255,255,255,0.04);
  transition: background var(--transition);
}

tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(255,255,255,0.02); }

tbody td {
  padding: 12px 16px;
  color: var(--text-mid);
  vertical-align: middle;
}

tbody td strong { color: var(--text); font-weight: 500; }

.td-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

/* ─── BADGES ─── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 500;
  padding: 3px 9px;
  border-radius: 100px;
  white-space: nowrap;
  letter-spacing: 0.3px;
}

.badge-green  { background: var(--green-pale);  color: var(--green);  border: 1px solid rgba(34,197,94,0.2); }
.badge-red    { background: var(--red-pale);    color: var(--red);    border: 1px solid rgba(239,68,68,0.2); }
.badge-blue   { background: var(--blue-pale);   color: var(--blue);   border: 1px solid rgba(59,127,255,0.2); }
.badge-yellow { background: var(--yellow-pale); color: var(--yellow); border: 1px solid rgba(234,179,8,0.2); }
.badge-gray   { background: var(--surface);     color: var(--text-dim); border: 1px solid var(--border); }
.badge-gold   { background: var(--gold-pale);   color: var(--gold);   border: 1px solid var(--gold-border); }

/* ─── BUTTONS ─── */
.btn {
  font-family: var(--font-body);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.2px;
}

.btn-primary  { background: var(--gold);    color: #000; }
.btn-primary:hover { background: var(--gold-light); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(201,168,76,0.25); }

.btn-secondary { background: var(--surface); color: var(--text-mid); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--surface2); color: var(--text); }

.btn-danger   { background: var(--red-pale); color: var(--red); border: 1px solid rgba(239,68,68,0.2); }
.btn-danger:hover { background: var(--red); color: #fff; }

.btn-success  { background: var(--green-pale); color: var(--green); border: 1px solid rgba(34,197,94,0.2); }
.btn-success:hover { background: var(--green); color: #fff; }

.btn-ghost    { background: none; color: var(--text-dim); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--gold-border); color: var(--text); }

.btn-sm  { padding: 5px 11px; font-size: 12px; }
.btn-lg  { padding: 12px 24px; font-size: 15px; }
.btn-icon { width: 32px; height: 32px; padding: 0; justify-content: center; border-radius: var(--radius-sm); }

/* ─── FORMS ─── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.form-grid.cols-1 { grid-template-columns: 1fr; }

.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }

.form-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-mid);
  letter-spacing: 0.3px;
}

.form-label .req { color: var(--gold); margin-left: 3px; }

.form-input,
.form-select,
.form-textarea {
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--text);
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 13px;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  outline: none;
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-dim); }

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--gold-border);
  box-shadow: 0 0 0 3px rgba(201,168,76,0.08);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%238A887F' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
  cursor: pointer;
}

.form-textarea { resize: vertical; min-height: 90px; }

.form-hint { font-size: 12px; color: var(--text-dim); margin-top: 2px; }
.form-error { font-size: 12px; color: var(--red); margin-top: 2px; }

.form-toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.form-toggle input { display: none; }

.toggle-slider {
  width: 40px; height: 22px;
  background: var(--surface2);
  border-radius: 11px;
  position: relative;
  transition: background var(--transition);
  flex-shrink: 0;
}

.toggle-slider::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 16px; height: 16px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: all var(--transition);
}

.form-toggle input:checked + .toggle-slider { background: var(--gold); }
.form-toggle input:checked + .toggle-slider::after { transform: translateX(18px); background: #000; }

/* ─── ALERTS / FLASH ─── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  margin-bottom: 20px;
  line-height: 1.5;
}

.alert-success { background: var(--green-pale);  border: 1px solid rgba(34,197,94,0.2);  color: var(--green); }
.alert-error   { background: var(--red-pale);    border: 1px solid rgba(239,68,68,0.2);  color: var(--red); }
.alert-warning { background: var(--yellow-pale); border: 1px solid rgba(234,179,8,0.2);  color: var(--yellow); }
.alert-info    { background: var(--blue-pale);   border: 1px solid rgba(59,127,255,0.2); color: var(--blue); }

/* ─── PAGINATION ─── */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
}

.page-btn {
  min-width: 32px; height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 13px;
  color: var(--text-dim);
  border: 1px solid transparent;
  transition: all var(--transition);
  padding: 0 8px;
  background: none;
}

.page-btn:hover { background: var(--surface); color: var(--text); }
.page-btn.active { background: var(--gold-pale); border-color: var(--gold-border); color: var(--gold); }
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }

/* ─── EMPTY STATE ─── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
}

.empty-state__icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state__title { font-family: var(--font-display); font-size: 22px; letter-spacing: 1px; color: var(--text-mid); margin-bottom: 8px; }
.empty-state__desc  { font-size: 14px; line-height: 1.6; max-width: 380px; margin: 0 auto 20px; }

/* ─── MODAL ─── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 900;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.open { display: flex; }

.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 64px rgba(0,0,0,0.7);
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to   { opacity: 1; transform: none; }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 1px;
}

.modal-close {
  width: 30px; height: 30px;
  border-radius: 6px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--red-pale); color: var(--red); }

.modal-body { padding: 22px; }
.modal-footer { padding: 16px 22px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

/* ─── TABS ─── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.tab-btn {
  padding: 10px 20px;
  font-size: 13.5px;
  color: var(--text-dim);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition);
  white-space: nowrap;
}

.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--gold); border-bottom-color: var(--gold); }

.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ─── CREDIT BADGE ─── */
.credit-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--gold-pale);
  border: 1px solid var(--gold-border);
  border-radius: 100px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--gold);
}

/* ─── SEARCH BAR ─── */
.search-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  transition: border-color var(--transition);
}

.search-bar:focus-within { border-color: var(--gold-border); }

.search-bar input {
  background: none;
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--text);
  padding: 9px 0;
  flex: 1;
  min-width: 0;
}

.search-bar input::placeholder { color: var(--text-dim); }

.search-bar svg { color: var(--text-dim); flex-shrink: 0; }

/* ─── PROGRESS BAR ─── */
.progress-bar {
  height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transition: width 0.6s ease;
}

.progress-bar__fill.green  { background: linear-gradient(90deg, var(--green), #4ade80); }
.progress-bar__fill.blue   { background: linear-gradient(90deg, var(--blue), #60a5fa); }
.progress-bar__fill.red    { background: linear-gradient(90deg, var(--red), #f87171); }

/* ─── NOISY BODY TEXTURE ─── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.3;
}

/* ═══════════════════════════════
   RESPONSIVE
═══════════════════════════════ */
@media (max-width: 1024px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    transform: translateX(-240px);
    width: 240px;
  }

  .sidebar.open { transform: translateX(0); }

  .topbar { left: 0; }
  .topbar__hamburger { display: flex; }

  .main-content { margin-left: 0; padding: 20px; }
}

@media (max-width: 640px) {
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .form-grid, .form-grid.cols-3 { grid-template-columns: 1fr; }
  .form-group.full { grid-column: 1; }
  .page-header { flex-direction: column; }
  .main-content { padding: 16px; }
  .card-body { padding: 14px; }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
}