/* =========================================
   MEMBY ADMIN DESIGN SYSTEM
   ========================================= */

/* -----------------------------------------
   1. CSS VARIABLES (Brand Colors)
   ----------------------------------------- */
:root {
  /* Primary Colors */
  --color-primary: #1E1E1E;
  --color-secondary: #6B7280;
  --color-accent: #3B82F6;

  /* Background Colors */
  --color-bg: #F9FAFB;
  --color-surface: #FFFFFF;
  --color-border: #E5E7EB;
  --color-border-light: #F3F4F6;

  /* Status Colors */
  --color-error: #DC2626;
  --color-success: #16A34A;
  --color-warning: #F59E0B;
  --color-info: #3B82F6;

  /* Text Colors */
  --color-text-primary: #1E1E1E;
  --color-text-secondary: #6B7280;
  --color-text-tertiary: #9CA3AF;
  --color-text-inverse: #FFFFFF;

  /* Border Radius */
  --radius-sm: 0.375rem;
  /* 6px */
  --radius-md: 0.625rem;
  /* 10px */
  --radius-lg: 0.75rem;
  /* 12px */

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);

  /* Spacing */
  --spacing-xs: 0.25rem;
  /* 4px */
  --spacing-sm: 0.5rem;
  /* 8px */
  --spacing-md: 1rem;
  /* 16px */
  --spacing-lg: 1.5rem;
  /* 24px */
  --spacing-xl: 2rem;
  /* 32px */
  --spacing-2xl: 3rem;
  /* 48px */

  /* Sidebar */
  --sidebar-width: 16.25rem;
  /* 260px */
  --sidebar-collapsed-width: 4rem;
  /* 64px */

  /* Transitions */
  --transition-base: 200ms ease-in-out;
}

/* -----------------------------------------
   RESPONSIVE ROOT FONT SIZE
   ----------------------------------------- */
html {
  font-size: 16px;
}

@media (max-width: 1536px) {
  html {
    font-size: 15px;
    /* ~93.75% scale */
  }
}

@media (max-width: 1280px) {
  html {
    font-size: 14px;
    /* ~87.5% scale - Fixes "zoomed in" feel on smaller laptops */
  }
}


/* -----------------------------------------
   2. CSS RESET & BASE STYLES
   ----------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  font-size: 0.875rem;
  /* 14px */
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* -----------------------------------------
   3. LAYOUT COMPONENTS
   ----------------------------------------- */

/* Main Layout Container */
.admin-layout {
  display: flex;
  min-height: 100vh;
  background-color: var(--color-bg);
}

/* Sidebar Navigation */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  transition: width var(--transition-base);
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

/* Sidebar Header */
.sidebar-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.sidebar-logo {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text-inverse);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar.collapsed .sidebar-logo-text {
  display: none;
}

.sidebar-toggle {
  background: transparent;
  border: none;
  color: var(--color-text-inverse);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base);
}

.sidebar-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Sidebar Navigation */
.sidebar-nav {
  padding: var(--spacing-md) 0;
}

.nav-section {
  margin-bottom: var(--spacing-lg);
}

.nav-section-title {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: var(--spacing-xs);
}

.sidebar.collapsed .nav-section-title {
  display: none;
}

.nav-item {
  display: flex;
  align-items: center;
  padding: 12px var(--spacing-lg);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: all var(--transition-base);
  cursor: pointer;
  border-left: 3px solid transparent;
  font-weight: 500;
}

.nav-item:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--color-text-inverse);
}

.nav-item.active {
  background-color: rgba(59, 130, 246, 0.1);
  border-left-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.nav-item-icon {
  margin-right: var(--spacing-md);
  font-size: 18px;
  min-width: 24px;
  text-align: center;
}

.sidebar.collapsed .nav-item-text {
  display: none;
}

/* Main Content Area */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  transition: margin-left var(--transition-base);
}

.sidebar.collapsed~.main-content {
  margin-left: var(--sidebar-collapsed-width);
}

/* Memby Banner */
.memby-banner {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--spacing-sm) var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 48px;
  position: sticky;
  top: 0;
  z-index: 101;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.memby-banner-content {
  display: flex;
  align-items: center;
  gap: 10px;
}

.memby-banner-logo {
  width: 32px;
  height: 26px;
  background: #ffffff;
  border-radius: 4px;
  padding: 2px;
  object-fit: contain;
}

.memby-banner-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-inverse);
  letter-spacing: -0.5px;
}

/* Top Bar */
.top-bar {
  background-color: var(--color-primary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) var(--spacing-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  position: sticky;
  top: 0;
  /* Position at top of window */
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.top-bar-heading {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-bar-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text-inverse);
  line-height: 1.3;
}

.top-bar-subtitle {
  margin: 2px 0 0;
  font-size: 13px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.78);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-base);
}

.user-menu:hover {
  background-color: var(--color-border-light);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
}

/* Content Container */
.content-container {
  padding: var(--spacing-xl);
  width: 100%;
}

/* -----------------------------------------
   4. CARD COMPONENTS
   ----------------------------------------- */

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  overflow: hidden;
}

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

.card-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.card-body {
  padding: var(--spacing-xl);
}

/* -----------------------------------------
   5. FILTER BAR
   ----------------------------------------- */

.filter-bar {
  background-color: var(--color-surface);
  padding: var(--spacing-lg) var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.filter-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-right: var(--spacing-sm);
}

.filter-tabs {
  display: flex;
  gap: var(--spacing-xs);
}

.filter-tab {
  padding: 8px 16px;
  background-color: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-tab:hover {
  background-color: var(--color-bg);
  border-color: var(--color-accent);
}

.filter-tab.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.filter-search {
  flex: 1;
  max-width: 300px;
}

/* -----------------------------------------
   6. FORM COMPONENTS
   ----------------------------------------- */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--color-text-primary);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input::placeholder {
  color: var(--color-text-tertiary);
}

.form-input[type="date"] {
  padding-right: 10px;
}

.error-text {
  display: block;
  font-size: 12px;
  color: var(--color-error);
  margin-top: var(--spacing-xs);
}

/* -----------------------------------------
   7. BUTTON COMPONENTS
   ----------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  font-family: inherit;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn-primary:hover {
  background-color: #2563EB;
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}

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

.btn-danger {
  background-color: transparent;
  color: var(--color-error);
  border: 1px solid var(--color-border);
}

.btn-danger:hover {
  background-color: var(--color-error);
  color: var(--color-text-inverse);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-icon {
  padding: 8px;
  min-width: 36px;
}

/* -----------------------------------------
   8. TABLE COMPONENTS
   ----------------------------------------- */

.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead {
  background-color: var(--color-bg);
}

.data-table th {
  padding: 14px var(--spacing-md);
  text-align: left;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  border-bottom: 2px solid var(--color-border);
}

.data-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
  color: var(--color-text-primary);
}

.data-table tbody tr {
  transition: background-color var(--transition-base);
}

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

.table-thumbnail {
  width: 48px;
  height: 48px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
}

.table-actions {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.action-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-base);
}

.action-link:hover {
  color: #2563EB;
  text-decoration: underline;
}

.action-link.danger {
  color: var(--color-error);
}

.action-link.danger:hover {
  color: #B91C1C;
}

/* Status Badge */
.status-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 12px;
  text-transform: capitalize;
}

.status-badge.approved {
  background-color: rgba(22, 163, 74, 0.1);
  color: var(--color-success);
}

.status-badge.rejected {
  background-color: rgba(220, 38, 38, 0.1);
  color: var(--color-error);
}

.status-badge.pending {
  background-color: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

/* -----------------------------------------
   9. PAGINATION
   ----------------------------------------- */

.pagination-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
}

.pagination-info {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.pagination {
  display: flex;
  gap: var(--spacing-xs);
  list-style: none;
}

.pagination-item {
  min-width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-base);
}

.pagination-item:hover {
  background-color: var(--color-bg);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.pagination-item.active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-inverse);
}

/* -----------------------------------------
   10. UTILITY CLASSES
   ----------------------------------------- */

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

.text-muted {
  color: var(--color-text-secondary);
}

.text-error,
.text-danger {
  color: var(--color-error);
}

.text-warning {
  color: var(--color-warning);
}

.text-success {
  color: var(--color-success);
}

.mt-0 {
  margin-top: 0;
}

.mt-sm {
  margin-top: var(--spacing-sm);
}

.mt-md {
  margin-top: var(--spacing-md);
}

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-0 {
  margin-bottom: 0;
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.gap-sm {
  gap: var(--spacing-sm);
}

.gap-md {
  gap: var(--spacing-md);
}

.gap-lg {
  gap: var(--spacing-lg);
}

.d-flex {
  display: flex;
}

.align-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.flex-wrap {
  flex-wrap: wrap;
}

/* -----------------------------------------
   11. RESPONSIVE DESIGN
   ----------------------------------------- */

@media (max-width: 1024px) {
  .sidebar {
    width: var(--sidebar-collapsed-width);
  }

  .sidebar-logo-text,
  .nav-item-text,
  .nav-section-title {
    display: none;
  }

  .main-content {
    margin-left: var(--sidebar-collapsed-width);
  }
}

@media (max-width: 768px) {
  .content-container {
    padding: var(--spacing-md);
  }

  .memby-banner {
    padding: var(--spacing-sm) var(--spacing-md);
    min-height: 44px;
  }

  .memby-banner-logo {
    width: 28px;
    height: 22px;
  }

  .memby-banner-text {
    font-size: 16px;
  }

  .top-bar {
    padding: var(--spacing-md);
    top: 0;
    /* Position at top of window */
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-search {
    max-width: 100%;
  }

  .pagination-container {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  /* Hide sidebar by default on mobile */
  .sidebar,
  #sidebar {
    transform: translateX(-100%) !important;
    pointer-events: none !important;
  }

  /* Show sidebar when mobile-open */
  .sidebar.mobile-open,
  #sidebar.mobile-open {
    transform: translateX(0) !important;
    pointer-events: auto !important;
  }

  /* Main content full width on mobile */
  .main-content {
    margin-left: 0 !important;
    width: 100% !important;
  }
}