/**
 * VAIKRON REWARDS — PREMIUM SAAS DESIGN SYSTEM
 * Brand Palette: Saffron (#F47716), Deep Orange (#E85D04), Warm Ivory (#FFF8ED), Charcoal (#242424)
 * Typography: Manrope (Display/Headings) & Inter (Body/UI)
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Manrope:wght@600;700;800&display=swap');

:root {
  /* Brand Palette */
  --brand-saffron: #F47716;
  --brand-orange-deep: #E85D04;
  --brand-ivory: #FFF8ED;
  --brand-white: #FFFFFF;
  --brand-surface-orange: #FFF1E5;
  --brand-border: #F0E8DF;

  /* Typography Colors */
  --text-primary: #242424;
  --text-secondary: #737373;
  --text-muted: #9E9E9E;
  --text-inverse: #FFFFFF;

  /* Semantic Colors */
  --success: #10B981;
  --success-surface: #ECFDF5;
  --success-border: #A7F3D0;
  --warning: #D99018;
  --warning-surface: #FFFBEB;
  --warning-border: #FDE68A;
  --danger: #D84A4A;
  --danger-surface: #FEF2F2;
  --danger-border: #FECACA;
  --info: #F47716;
  --info-surface: #FFF8ED;
  --info-border: #FDE68A;

  /* Gradients */
  --gradient-saffron: linear-gradient(135deg, #F47716 0%, #E85D04 100%);
  --gradient-saffron-hover: linear-gradient(135deg, #FF8A2E 0%, #F47716 100%);
  --gradient-warm: linear-gradient(180deg, #FFF8ED 0%, #FFFFFF 100%);
  --gradient-card: linear-gradient(180deg, #FFFFFF 0%, #FAFAF9 100%);

  /* Typography Families */
  --font-display: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout & Geometry */
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 72px;
  --topbar-height: 68px;
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-subtle: 0 1px 3px rgba(36, 36, 36, 0.04), 0 1px 2px rgba(36, 36, 36, 0.02);
  --shadow-card: 0 4px 16px -2px rgba(36, 36, 36, 0.06), 0 2px 6px -1px rgba(36, 36, 36, 0.03);
  --shadow-hover: 0 12px 28px -4px rgba(244, 119, 22, 0.12), 0 4px 10px -2px rgba(36, 36, 36, 0.04);
  --shadow-saffron: 0 6px 20px -3px rgba(244, 119, 22, 0.35);
  --shadow-modal: 0 24px 48px -12px rgba(36, 36, 36, 0.2), 0 8px 16px -4px rgba(36, 36, 36, 0.08);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================
   GLOBAL BASE & RESET
   ========================================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: #FAF8F5;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

h1 { font-size: 1.85rem; }
h2 { font-size: 1.45rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }

p { margin-bottom: 0.75rem; }
p:last-child { margin-bottom: 0; }

a {
  color: var(--brand-saffron);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--brand-orange-deep);
}

img, svg {
  vertical-align: middle;
  max-width: 100%;
}

/* Helpers */
.muted { color: var(--text-secondary); }
.text-saffron { color: var(--brand-saffron); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.font-mono { font-family: var(--font-mono); }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

/* ==========================================================
   BUTTON SYSTEM
   ========================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  min-height: 50px;
  padding: 0.82rem 1.85rem;
  font-family: 'Manrope', -apple-system, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.25;
  border-radius: 12px;
  border: 1.5px solid var(--brand-border);
  background: var(--brand-white);
  color: var(--text-primary);
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition-normal);
  white-space: nowrap;
  user-select: none;
  letter-spacing: -0.01em;
  box-shadow: 0 2px 4px rgba(36, 36, 36, 0.04);
  box-sizing: border-box;
}

.btn:hover {
  background: var(--brand-ivory);
  border-color: #E2D7CC;
  transform: translateY(-1.5px);
  box-shadow: 0 6px 16px rgba(36, 36, 36, 0.08);
}

.btn:active {
  transform: scale(0.98) translateY(0);
}

.btn:focus-visible {
  outline: 2px solid var(--brand-saffron);
  outline-offset: 2px;
}

.btn-primary {
  background: linear-gradient(135deg, #F47716 0%, #E85D04 100%) !important;
  border: 1px solid rgba(232, 93, 4, 0.3) !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 16px rgba(244, 119, 22, 0.38) !important;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #FF8A2E 0%, #F47716 100%) !important;
  border-color: transparent !important;
  color: #FFFFFF !important;
  box-shadow: 0 8px 26px rgba(244, 119, 22, 0.48) !important;
  transform: translateY(-2px);
}

.btn-primary:active {
  background: var(--brand-orange-deep) !important;
  transform: scale(0.98) translateY(0);
  box-shadow: 0 2px 8px rgba(244, 119, 22, 0.35) !important;
}

.btn-secondary {
  background: #FFF1E5 !important;
  border: 1.5px solid #F8DFCA !important;
  color: var(--brand-orange-deep) !important;
  box-shadow: 0 2px 6px rgba(244, 119, 22, 0.08);
}

.btn-secondary:hover {
  background: #FFE4D0 !important;
  border-color: #F3CCA8 !important;
  color: #C84F00 !important;
  transform: translateY(-1.5px);
  box-shadow: 0 4px 14px rgba(244, 119, 22, 0.16);
}

.btn-secondary:active {
  transform: scale(0.98) translateY(0);
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
  box-shadow: none;
}

.btn-ghost:hover {
  background: rgba(244, 119, 22, 0.08);
  border-color: transparent;
  color: var(--brand-orange-deep);
}

.btn-warning {
  background: #FFFBEB !important;
  border: 1.5px solid #FDE68A !important;
  color: #D99018 !important;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(217, 144, 24, 0.1);
}

.btn-warning:hover {
  background: #D99018 !important;
  color: #FFFFFF !important;
  border-color: #D99018 !important;
  box-shadow: 0 6px 18px rgba(217, 144, 24, 0.35) !important;
  transform: translateY(-1.5px);
}

.btn-warning:active {
  transform: scale(0.98) translateY(0);
}

.btn-danger {
  background: #FEF2F2 !important;
  border: 1.5px solid #FECACA !important;
  color: #D84A4A !important;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(216, 74, 74, 0.1);
}

.btn-danger:hover {
  background: #D84A4A !important;
  border-color: #D84A4A !important;
  color: #FFFFFF !important;
  box-shadow: 0 6px 18px rgba(216, 74, 74, 0.35) !important;
  transform: translateY(-1.5px);
}

.btn-danger:active {
  transform: scale(0.98) translateY(0);
}

.btn-success {
  background: #F0FDF4 !important;
  border: 1.5px solid #BBF7D0 !important;
  color: #16865A !important;
  font-weight: 700;
  box-shadow: 0 2px 6px rgba(22, 134, 90, 0.1);
}

.btn-success:hover {
  background: #16865A !important;
  border-color: #16865A !important;
  color: #FFFFFF !important;
  box-shadow: 0 6px 18px rgba(22, 134, 90, 0.35) !important;
  transform: translateY(-1.5px);
}

.btn-success:active {
  transform: scale(0.98) translateY(0);
}

.btn-sm {
  min-height: 42px;
  padding: 0.55rem 1.25rem;
  font-size: 0.92rem;
  border-radius: 10px;
  font-weight: 700;
}

.btn-lg {
  min-height: 54px;
  padding: 0.95rem 2.4rem;
  font-size: 1.05rem;
  border-radius: 14px;
  font-weight: 800;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ==========================================================
   BRAND LOGO COMPONENT
   ========================================================== */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--gradient-saffron);
  color: var(--brand-white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(244, 119, 22, 0.3);
  flex-shrink: 0;
}

.brand small {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-left: 0.25rem;
}

/* ==========================================================
   FORM CONTROLS
   ========================================================== */
.form-group {
  margin-bottom: 1.15rem;
}

label, .form-label {
  display: block;
  font-family: 'Manrope', -apple-system, sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  color: #374151;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.5rem;
}

.form-control,
.form-select,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="search"],
input[type="url"],
input[type="date"],
select,
textarea {
  display: block;
  width: 100%;
  min-height: 50px;
  padding: 0.78rem 1.25rem;
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 0.98rem;
  line-height: 1.5;
  color: var(--brand-dark);
  background-color: #FFFFFF;
  border: 1.5px solid var(--brand-border);
  border-radius: 12px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
  box-shadow: 0 1px 2px rgba(36, 36, 36, 0.03);
  box-sizing: border-box;
}

textarea.form-control,
textarea {
  min-height: 100px;
  resize: vertical;
}

.form-select,
select {
  appearance: none !important;
  -webkit-appearance: none !important;
  -moz-appearance: none !important;
  padding-right: 2.85rem !important;
  background-color: #FFFFFF !important;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='none' stroke='%23E85D04' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 1.15rem center !important;
  background-size: 18px 18px !important;
  cursor: pointer;
}

.form-control:focus,
.form-select:focus,
input:focus,
select:focus,
textarea:focus {
  outline: none !important;
  border-color: var(--brand-saffron) !important;
  box-shadow: 0 0 0 4px rgba(244, 119, 22, 0.18) !important;
  background-color: #FFFFFF !important;
}

.form-control::placeholder,
input::placeholder,
textarea::placeholder {
  color: #9CA3AF;
  font-size: 0.9rem;
}

.form-control:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  background-color: #F9FAFB !important;
  color: #6B7280 !important;
  cursor: not-allowed;
  border-color: #E5E7EB !important;
}

.form-hint {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-top: 0.35rem;
}

/* ==========================================================
   CARD SYSTEM
   ========================================================== */
.card {
  background: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-header h2, .card-header h3 {
  margin: 0;
}

.card-stat {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1.25rem 1.4rem;
  background: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

.card-stat:hover {
  transform: translateY(-2px);
  border-color: #E2D7CC;
  box-shadow: var(--shadow-hover);
}

.card-stat .stat-label {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 0.35rem;
}

.card-stat .stat-val {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.15;
}

.card-stat .stat-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: var(--brand-surface-orange);
  color: var(--brand-orange-deep);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

/* Stat Grid */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

/* ==========================================================
   DATA TABLES
   ========================================================== */
.table-responsive,
.table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: var(--brand-white);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  margin-bottom: 1.5rem;
  box-sizing: border-box;
}

.card .table-responsive {
  border: none;
  box-shadow: none;
  margin-bottom: 0;
  background: transparent;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

thead th {
  background: #FAF8F5;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--brand-border);
  white-space: nowrap;
}

tbody td {
  padding: 0.95rem 1.1rem;
  border-bottom: 1px solid #F5EFEB;
  color: var(--text-primary);
  vertical-align: middle;
}

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

tbody tr:hover {
  background: #FFFDF9;
}

/* ==========================================================
   BADGES & PILLS
   ========================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.2;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
}

.badge-saffron {
  background: var(--brand-surface-orange);
  color: var(--brand-orange-deep);
  border-color: #FBD5B8;
}

.badge-success {
  background: var(--success-surface);
  color: #065F46;
  border-color: var(--success-border);
}

.badge-warning {
  background: var(--warning-surface);
  color: #92400E;
  border-color: var(--warning-border);
}

.badge-danger {
  background: var(--danger-surface);
  color: #991B1B;
  border-color: var(--danger-border);
}

.badge-muted {
  background: #F3F0EB;
  color: var(--text-secondary);
  border-color: var(--brand-border);
}

.badge-notif {
  background: var(--brand-saffron);
  color: var(--brand-white);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  margin-left: 6px;
  display: inline-block;
  line-height: 1.2;
}

/* ==========================================================
   ALERTS
   ========================================================== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-sm);
  margin: 1rem 0;
  font-size: 0.9rem;
  line-height: 1.45;
  border: 1px solid transparent;
}

.alert-danger, .alert:not(.warn):not([style*="background:#f0fdf4"]) {
  background: var(--danger-surface);
  color: #991B1B;
  border-color: var(--danger-border);
}

.alert.warn {
  background: var(--warning-surface);
  color: #92400E;
  border-color: var(--warning-border);
}

.alert-success, .alert[style*="background:#f0fdf4"] {
  background: var(--success-surface) !important;
  color: #065F46 !important;
  border-color: var(--success-border) !important;
}

/* ==========================================================
   APPLICATION SHELL LAYOUT (DESKTOP & MOBILE)
   ========================================================== */
.shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--brand-white);
  border-right: 1px solid var(--brand-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 50;
  transition: width 0.22s cubic-bezier(0.16, 1, 0.3, 1), transform 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar.collapsed {
  width: 72px;
}

.sidebar.collapsed .sidebar-header {
  padding: 1.25rem 0.5rem 1rem;
  justify-content: center;
}

.sidebar.collapsed .sidebar-header .brand div,
.sidebar.collapsed .sidebar-nav-label,
.sidebar.collapsed nav a span:last-child,
.sidebar.collapsed .sidebar-store-card,
.sidebar.collapsed .sidebar-footer > div > div:first-child,
.sidebar.collapsed .sidebar-collapse-text {
  display: none !important;
}

.sidebar.collapsed nav {
  padding: 0.85rem 0.5rem;
}

.sidebar.collapsed nav a {
  justify-content: center;
  padding: 0.75rem 0;
  position: relative;
}

.sidebar.collapsed nav a span:first-child {
  font-size: 1.25rem !important;
  margin: 0 !important;
}

/* Tooltip on collapsed mode */
.sidebar.collapsed nav a[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(100% + 12px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--brand-dark);
  color: #FFFFFF;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  z-index: 1000;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
  pointer-events: none;
}

.sidebar.collapsed nav a[data-tooltip]:hover::before {
  content: "";
  position: absolute;
  left: calc(100% + 6px);
  top: 50%;
  transform: translateY(-50%);
  border: 5px solid transparent;
  border-right-color: var(--brand-dark);
  z-index: 1000;
  pointer-events: none;
}

.sidebar-collapse-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  border: 1px solid var(--brand-border);
  background: var(--brand-white);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s ease;
}

.sidebar-collapse-btn:hover {
  background: var(--brand-ivory);
  color: var(--brand-saffron);
  border-color: var(--brand-saffron);
}

.sidebar-header {
  padding: 1.4rem 1.25rem 1.1rem;
  border-bottom: 1px solid var(--brand-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar nav {
  flex: 1;
  padding: 1rem 0.85rem;
  overflow-y: auto;
}

.sidebar-nav-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  padding: 0.75rem 0.75rem 0.35rem;
}

.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  margin-bottom: 3px;
  transition: all var(--transition-fast);
}

.sidebar nav a:hover {
  background: var(--brand-ivory);
  color: var(--brand-orange-deep);
}

.sidebar nav a.active {
  background: var(--brand-surface-orange);
  color: var(--brand-orange-deep);
  font-weight: 600;
  box-shadow: inset 3px 0 0 var(--brand-saffron);
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--brand-border);
  background: #FAF8F5;
}

/* Main Content Area */
.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: var(--topbar-height);
  background: var(--brand-white);
  border-bottom: 1px solid var(--brand-border);
  padding: 0 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 40;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.content {
  flex: 1;
  padding: 1.75rem 2rem 3rem;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

/* Page Headers */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.page-title {
  margin: 0;
  font-size: 1.75rem;
}

.page-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  margin-top: 0.35rem;
}

/* ==========================================================
   AUTHENTICATION SHELL
   ========================================================== */
.auth-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  background: radial-gradient(circle at 50% 20%, #FFF8ED 0%, #FAF8F5 70%);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--brand-white);
  padding: 2.5rem 2.25rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--brand-border);
  box-shadow: var(--shadow-modal);
}

.auth-header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.auth-header .brand {
  margin-bottom: 1.25rem;
}

/* ==========================================================
   EMPTY STATES
   ========================================================== */
.empty-state {
  text-align: center;
  padding: 3.5rem 1.5rem;
  background: var(--brand-white);
  border: 1px dashed var(--brand-border);
  border-radius: var(--radius-md);
  margin: 1.5rem 0;
}

.empty-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1rem;
  border-radius: var(--radius-full);
  display: grid;
  place-items: center;
  background: var(--brand-surface-orange);
  color: var(--brand-orange-deep);
  font-size: 1.75rem;
}

.empty-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.35rem;
}

.empty-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 400px;
  margin: 0 auto 1.25rem;
}

/* ==========================================================
   MOBILE & TABLET RESPONSIVENESS
   ========================================================== */
.mobile-nav-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-primary);
  padding: 0.4rem;
}

@media (max-width: 900px) {
  body.sidebar-open {
    overflow: hidden !important;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }

  .sidebar-collapse-btn {
    display: none !important;
  }

  .sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 280px !important;
    transform: translateX(-100%);
    box-shadow: 0 20px 50px rgba(36, 36, 36, 0.25);
    z-index: 1000;
  }

  .sidebar.mobile-open {
    transform: translateX(0) !important;
  }

  .sidebar.collapsed {
    width: 280px !important;
  }

  .sidebar.collapsed .sidebar-header .brand div,
  .sidebar.collapsed .sidebar-nav-label,
  .sidebar.collapsed nav a span:last-child,
  .sidebar.collapsed .sidebar-store-card,
  .sidebar.collapsed .sidebar-footer > div > div:first-child,
  .sidebar.collapsed .sidebar-collapse-text {
    display: flex !important;
  }

  .sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(36, 36, 36, 0.45);
    backdrop-filter: blur(3px);
    z-index: 999;
  }

  .sidebar-backdrop.active {
    display: block;
  }

  .content {
    padding: 1.25rem 1rem 2.5rem;
  }

  .topbar {
    padding: 0 1rem;
  }

  .cards {
    grid-template-columns: 1fr 1fr;
    gap: 0.85rem;
  }
}

@media (max-width: 580px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .page-header {
    flex-direction: column;
    align-items: stretch;
  }

  .page-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .page-actions .btn {
    flex: 1;
  }
}