/* ============================================
   Customer Loyalty Points System
   Earth Tone Minimal Design
   ============================================ */

:root {
  /* Earth Tone Color Palette */
  --color-primary: #8b7355; /* Cinnamon Brown */
  --color-primary-dark: #6b5344; /* Dark Brown */
  --color-primary-light: #a69076; /* Light Brown */

  --color-secondary: #d4c4a8; /* Warm Beige */
  --color-secondary-light: #e8dfd0; /* Light Beige */

  --color-accent: #6b8e6b; /* Sage Green */
  --color-accent-light: #8fb08f; /* Light Sage */
  --color-accent-dark: #4a6b4a; /* Dark Sage */

  --color-background: #f5f1e8; /* Cream */
  --color-surface: #ffffff; /* White */
  --color-surface-alt: #faf8f5; /* Off White */

  --color-text: #4a4a4a; /* Dark Gray */
  --color-text-light: #7a7a7a; /* Medium Gray */
  --color-text-muted: #9a9a9a; /* Light Gray */

  --color-star: #d4a574; /* Gold/Star color */
  --color-success: #6b8e6b; /* Green */
  --color-warning: #c9a962; /* Yellow/Orange */
  --color-error: #b85c5c; /* Muted Red */

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    sans-serif;
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.3;
}

h1 {
  font-size: 2rem;
}
h2 {
  font-size: 1.5rem;
}
h3 {
  font-size: 1.25rem;
}

/* Layout */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.page-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header */
.header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-secondary);
  padding: var(--space-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.logo-icon {
  font-size: 1.5rem;
}

.nav {
  display: flex;
  gap: var(--space-sm);
}

.nav-link {
  padding: var(--space-sm) var(--space-md);
  color: var(--color-text-light);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
  background: var(--color-secondary-light);
  color: var(--color-primary);
}

/* Main Content */
.main {
  flex: 1;
  padding: var(--space-xl) 0;
}

/* Cards */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-lg);
  border: 1px solid var(--color-secondary-light);
}

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

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

/* Grid */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Stats Card */
.stat-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-secondary-light);
  text-align: center;
  transition: all var(--transition-normal);
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-card.accent .stat-value {
  color: var(--color-accent);
}

.stat-card.star .stat-value {
  color: var(--color-star);
}

/* Stars Display */
.stars-display {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.star {
  font-size: 1.5rem;
  color: var(--color-star);
}

.star.empty {
  color: var(--color-secondary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.9375rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-dark);
}

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

.btn-secondary:hover:not(:disabled) {
  background: var(--color-secondary-light);
}

.btn-accent {
  background: var(--color-accent);
  color: white;
}

.btn-accent:hover:not(:disabled) {
  background: var(--color-accent-dark);
}

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

.btn-outline:hover:not(:disabled) {
  background: var(--color-primary);
  color: white;
}

.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
}

/* Forms */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-size: 1rem;
  border: 1px solid var(--color-secondary);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(139, 115, 85, 0.1);
}

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

/* Table */
.table-wrapper {
  overflow-x: auto;
}

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

.table th,
.table td {
  padding: var(--space-md);
  text-align: left;
  border-bottom: 1px solid var(--color-secondary-light);
}

.table th {
  font-weight: 600;
  color: var(--color-text-light);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-surface-alt);
}

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

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-success {
  background: rgba(107, 142, 107, 0.15);
  color: var(--color-success);
}

.badge-warning {
  background: rgba(201, 169, 98, 0.15);
  color: var(--color-warning);
}

.badge-error {
  background: rgba(184, 92, 92, 0.15);
  color: var(--color-error);
}

.badge-neutral {
  background: var(--color-secondary-light);
  color: var(--color-text-light);
}

/* Promotion Card */
.promotion-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  border: 1px solid var(--color-secondary-light);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  transition: all var(--transition-normal);
}

.promotion-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.promotion-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.promotion-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
}

.promotion-stars {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--color-secondary-light);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-weight: 600;
  color: var(--color-star);
}

.promotion-description {
  color: var(--color-text-light);
  font-size: 0.9375rem;
}

.promotion-reward {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: all var(--transition-normal);
}

.modal-overlay.active .modal {
  transform: scale(1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-text-light);
  cursor: pointer;
  padding: var(--space-xs);
  line-height: 1;
}

.modal-close:hover {
  color: var(--color-text);
}

/* Login Box */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

.login-box {
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.login-logo .logo-icon {
  font-size: 3rem;
  color: var(--color-primary);
}

.login-title {
  text-align: center;
  margin-bottom: var(--space-lg);
  color: var(--color-text);
}

/* Alerts */
.alert {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
}

.alert-success {
  background: rgba(107, 142, 107, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background: rgba(184, 92, 92, 0.1);
  border: 1px solid var(--color-error);
  color: var(--color-error);
}

.alert-warning {
  background: rgba(201, 169, 98, 0.1);
  border: 1px solid var(--color-warning);
  color: #8b6914;
}

/* Loading */
.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-secondary);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-2xl);
  color: var(--color-text-light);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

/* Customer Search */
.search-box {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.search-box .form-input {
  flex: 1;
}

/* Tabs */
.tabs {
  display: flex;
  gap: var(--space-xs);
  border-bottom: 1px solid var(--color-secondary);
  margin-bottom: var(--space-lg);
}

.tab {
  padding: var(--space-sm) var(--space-md);
  background: none;
  border: none;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-light);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition-fast);
}

.tab:hover {
  color: var(--color-primary);
}

.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .nav {
    flex-wrap: wrap;
    justify-content: center;
  }

  h1 {
    font-size: 1.5rem;
  }
  h2 {
    font-size: 1.25rem;
  }

  .stat-value {
    font-size: 2rem;
  }

  .modal {
    padding: var(--space-lg);
  }

  .login-box {
    padding: var(--space-xl);
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}
.text-muted {
  color: var(--color-text-muted);
}
.text-success {
  color: var(--color-success);
}
.text-warning {
  color: var(--color-warning);
}
.text-error {
  color: var(--color-error);
}

.mt-sm {
  margin-top: var(--space-sm);
}
.mt-md {
  margin-top: var(--space-md);
}
.mt-lg {
  margin-top: var(--space-lg);
}
.mt-xl {
  margin-top: var(--space-xl);
}

.mb-sm {
  margin-bottom: var(--space-sm);
}
.mb-md {
  margin-bottom: var(--space-md);
}
.mb-lg {
  margin-bottom: var(--space-lg);
}
.mb-xl {
  margin-bottom: var(--space-xl);
}

.flex {
  display: flex;
}
.flex-col {
  flex-direction: column;
}
.items-center {
  align-items: center;
}
.justify-between {
  justify-content: space-between;
}
.gap-sm {
  gap: var(--space-sm);
}
.gap-md {
  gap: var(--space-md);
}
.gap-lg {
  gap: var(--space-lg);
}


/* Calendar */
.calendar-container {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-secondary-light);
}

.calendar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.calendar-month-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1px;
  background: var(--color-secondary-light);
  border: 1px solid var(--color-secondary-light);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.calendar-day-header {
  background: var(--color-surface-alt);
  padding: var(--space-sm);
  text-align: center;
  font-weight: 600;
  color: var(--color-text-light);
  font-size: 0.875rem;
}

.calendar-day {
  background: var(--color-surface);
  min-height: 100px;
  padding: var(--space-sm);
  position: relative;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calendar-day:hover {
  background: var(--color-surface-alt);
}

.calendar-day.other-month {
  background: var(--color-surface-alt);
  opacity: 0.5;
  cursor: default;
}

.calendar-day.today {
  background: rgba(139, 115, 85, 0.05);
}

.calendar-day.today::after {
  content: '';
  position: absolute;
  top: var(--space-xs);
  right: var(--space-xs);
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
}

.day-number {
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.point-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  background: var(--color-secondary-light);
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text);
}

.point-badge.custom {
  background: var(--color-warning);
  color: #fff;
}

/* Utility */
.hidden {
  display: none !important;
}