/* ========================================
   CSS Variables
   ======================================== */

:root {
  /* Color Palette */
  --color-primary: #b37876;
  --color-primary-hover: #986361;
  --color-primary-light: rgba(179, 120, 118, 0.1);
  --color-primary-dark: #8b5a58;

  --color-secondary: #f8f9fa;
  --color-secondary-dark: #e9ecef;
  --color-secondary-darker: #dee2e6;

  --color-accent: #b37876;
  --color-accent-light: rgba(179, 120, 118, 0.15);

  /* Text Colors */
  --color-text-primary: #212529;
  --color-text-secondary: #495057;
  --color-text-muted: #6c757d;
  --color-text-light: #838c94;
  --color-text-white: #ffffff;

  /* Background Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f2f2f2;
  --color-bg-surface: #ffffff;
  --color-bg-overlay: rgba(0, 0, 0, 0.05);

  /* Border Colors */
  --color-border: #dee2e6;
  --color-border-light: #f3f4f6;
  --color-border-dark: #adb5bd;

  /* Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Typography */
  --font-family-primary: "Poppins", sans-serif;
  --font-family-fallback: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --font-size-xs: 0.75rem; /* 12px */
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-base: 1rem; /* 16px */
  --font-size-lg: 1.125rem; /* 18px */
  --font-size-xl: 1.25rem; /* 20px */
  --font-size-2xl: 1.5rem; /* 24px */
  --font-size-3xl: 1.875rem; /* 30px */
  --font-size-4xl: 2.25rem; /* 36px */
  --font-size-5xl: 3rem; /* 48px */

  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;

  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* Spacing Scale */
  --spacing-xs: 0.25rem; /* 4px */
  --spacing-sm: 0.5rem; /* 8px */
  --spacing-base: 0.8rem; /* 12px */
  --spacing-md: 1rem; /* 16px */
  --spacing-lg: 1.5rem; /* 24px */
  --spacing-xl: 2rem; /* 32px */
  --spacing-2xl: 2.5rem; /* 40px */
  --spacing-3xl: 3rem; /* 48px */
  --spacing-4xl: 4rem; /* 64px */
  --spacing-5xl: 5rem; /* 80px */

  /* Border Radius */
  --radius-sm: 0.25rem; /* 4px */
  --radius-md: 0.375rem; /* 6px */
  --radius-lg: 0.5rem; /* 8px */
  --radius-xl: 0.75rem; /* 12px */
  --radius-2xl: 1rem; /* 16px */
  --radius-3xl: 1.5rem; /* 24px */
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px -1px rgba(0, 0, 0, 0.07), 0 2px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px -2px rgba(0, 0, 0, 0.07), 0 4px 12px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 2px 15px -3px rgba(0, 0, 0, 0.07), 0 10px 20px -2px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 4px 20px -4px rgba(0, 0, 0, 0.07), 0 15px 30px -3px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 6px 25px -6px rgba(0, 0, 0, 0.07), 0 20px 40px -4px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;

  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1090;

  /* Layout */
  --header-height: 65px;
  --container-max-width: 1200px;
  --sidebar-width: 260px;
}

/* ========================================
   Dark Theme Variables
   ======================================== */

body.dark-theme {
  --color-bg-primary: #2a292f;
  --color-bg-secondary: #1a1a19;
  --color-bg-surface: #2a292f;
  --color-bg-overlay: rgba(255, 255, 255, 0.1);

  --color-text-primary: #f0f0f0;
  --color-text-secondary: #b3b3b3;
  --color-text-muted: #666666;
  --color-text-light: #909090;
  --color-text-white: #ffffff;

  --color-border: #404040;
  --color-border-light: #2f2f2f;
  --color-border-dark: #555555;

  --color-secondary: #1a1a1a;
  --color-secondary-dark: #2a2a2a;
  --color-secondary-darker: #3a3a3a;
}

/* ========================================
   Base Styles
   ======================================== */

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-family-primary), var(--font-family-fallback);
  background-color: var(--color-bg-secondary);
  line-height: var(--line-height-normal);
  margin: 0;
  padding: 0;
}

/* ========================================
   Scrollbar Styles
   ======================================== */

*::-webkit-scrollbar {
  width: 11px;
}

*::-webkit-scrollbar-track {
  background: #ccc;
}

*::-webkit-scrollbar-thumb {
  background-color: var(--color-primary);
  border-radius: 6px;
  border: 3px solid #ccc;
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) #ccc;
}

/* ========================================
   Button System
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-base) var(--spacing-md);
  border: none;
  border-radius: var(--radius-xl);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-tight);
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-normal);
  white-space: nowrap;
  user-select: none;
}

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

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Primary Button */
.btn-primary {
  background-color: var(--color-primary) !important;
  color: white;
  transition: var(--transition-normal);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover) !important;
  transform: translateY(-2px) !important;
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0) !important;
}

/* Secondary Button */
.btn-secondary {
  background-color: var(--color-secondary-dark) !important;
  color: var(--color-text-primary) !important;
  border: 1px solid var(--color-border) !important;
}

.btn-secondary:hover:not(:disabled) {
  color: var(--color-text-primary) !important;
  background-color: var(--color-secondary-darker) !important;
  border-color: var(--color-border-dark) !important;
}

/* Outline Button */
.btn-outline {
  background-color: transparent !important;
  color: var(--color-text-primary) !important;
  border: 1px solid var(--color-border) !important;
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-bg-overlay) !important;
  border-color: var(--color-primary) !important;
  color: var(--color-primary) !important;
}

/* Ghost Button */
.btn-ghost {
  background-color: transparent !important;
  color: var(--color-text-primary) !important;
}

.btn-ghost:hover:not(:disabled) {
  background-color: var(--color-bg-overlay);
}

/* Danger Button */
.btn-danger {
  background-color: var(--color-error);
  color: white;
}

.btn-danger:hover:not(:disabled) {
  background-color: #dc2626;
  transform: translateY(-1px);
}

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

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

/* Success Button */
.btn-success {
  background-color: var(--color-success);
  color: white;
}

.btn-success:hover:not(:disabled) {
  background-color: #059669;
  transform: translateY(-1px);
}

/* Danger Outline Button */
.btn-danger-outline {
  border: 1px solid rgba(220, 53, 69, 0.1) !important;
  color: #dc3545 !important;
  background: rgba(220, 53, 69, 0.1) !important;
}

.btn-danger-outline:hover:not(:disabled) {
  background: #dc3545 !important;
  color: white !important;
  border-color: #dc3545 !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

/* Button Sizes */
.btn-sm {
  padding: var(--spacing-sm) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-md {
  font-size: var(--font-size-base);
  padding: var(--spacing-md) var(--spacing-lg);
}

.btn-lg {
  font-size: var(--font-size-lg);
  padding: var(--spacing-lg) var(--spacing-xl);
}

/* ========================================
   Utility Classes
   ======================================== */

/* Color Classes */
.color-primary {
  color: var(--color-primary) !important;
}
.color-text-primary {
  color: var(--color-text-primary) !important;
}
.color-text-secondary {
  color: var(--color-text-secondary) !important;
}
.color-text-muted {
  color: var(--color-text-muted) !important;
}
.color-text-light {
  color: var(--color-text-light) !important;
}
.color-secondary {
  color: var(--color-text-secondary) !important;
}
.color-muted {
  color: var(--color-text-muted) !important;
}
.color-light {
  color: var(--color-text-light) !important;
}
.color-success {
  color: var(--color-success) !important;
}
.color-warning {
  color: var(--color-warning) !important;
}
.color-error {
  color: var(--color-error) !important;
}
.color-info {
  color: var(--color-info) !important;
}
.color-accent {
  color: var(--color-accent) !important;
}

/* Background Classes */
.bg-primary {
  background-color: var(--color-bg-primary) !important;
}
.bg-secondary {
  background-color: var(--color-bg-secondary) !important;
}
.bg-surface {
  background-color: var(--color-bg-surface) !important;
}
.bg-overlay {
  background-color: var(--color-bg-overlay) !important;
}
.bg-success {
  background-color: var(--color-success) !important;
}
.bg-warning {
  background-color: var(--color-warning) !important;
}
.bg-error {
  background-color: var(--color-error) !important;
}
.bg-info {
  background-color: var(--color-info) !important;
}
.bg-accent {
  background-color: var(--color-accent) !important;
}
.bg-accent-light {
  background-color: var(--color-accent-light) !important;
}

/* Font Size Classes */
.font-xs {
  font-size: var(--font-size-xs) !important;
}
.font-sm {
  font-size: var(--font-size-sm) !important;
}
.font-base {
  font-size: var(--font-size-base) !important;
}
.font-lg {
  font-size: var(--font-size-lg) !important;
}
.font-xl {
  font-size: var(--font-size-xl) !important;
}
.font-2xl {
  font-size: var(--font-size-2xl) !important;
}
.font-3xl {
  font-size: var(--font-size-3xl) !important;
}
.font-4xl {
  font-size: var(--font-size-4xl) !important;
}
.font-5xl {
  font-size: var(--font-size-5xl) !important;
}

/* Font Weight Classes */
.font-light {
  font-weight: var(--font-weight-light) !important;
}
.font-normal {
  font-weight: var(--font-weight-normal) !important;
}
.font-medium {
  font-weight: var(--font-weight-medium) !important;
}
.font-semibold {
  font-weight: var(--font-weight-semibold) !important;
}
.font-bold {
  font-weight: var(--font-weight-bold) !important;
}
.font-extrabold {
  font-weight: var(--font-weight-extrabold) !important;
}

/* Line Height Classes */
.leading-tight {
  line-height: var(--line-height-tight) !important;
}
.leading-snug {
  line-height: var(--line-height-snug) !important;
}
.leading-normal {
  line-height: var(--line-height-normal) !important;
}
.leading-relaxed {
  line-height: var(--line-height-relaxed) !important;
}
.leading-loose {
  line-height: var(--line-height-loose) !important;
}

/* Legacy text color classes (for backward compatibility) */
.text-primary {
  color: var(--color-primary) !important;
}
.text-secondary {
  color: var(--color-text-secondary) !important;
}
.text-muted {
  color: var(--color-text-muted) !important;
}
.text-success {
  color: var(--color-success) !important;
}
.text-warning {
  color: var(--color-warning) !important;
}
.text-error {
  color: var(--color-error) !important;
}
.text-info {
  color: var(--color-info) !important;
}

.border {
  border: 1px solid var(--color-border) !important;
}
.border-primary {
  border-color: var(--color-primary) !important;
}
.border-light {
  border-color: var(--color-border-light) !important;
}

.rounded {
  border-radius: var(--radius-md) !important;
}
.rounded-lg {
  border-radius: var(--radius-lg) !important;
}
.rounded-xl {
  border-radius: var(--radius-xl) !important;
}
.rounded-2xl {
  border-radius: var(--radius-2xl) !important;
}
.rounded-full {
  border-radius: var(--radius-full) !important;
}

.shadow-sm {
  box-shadow: var(--shadow-sm) !important;
}
.shadow-md {
  box-shadow: var(--shadow-md) !important;
}
.shadow-lg {
  box-shadow: var(--shadow-lg) !important;
}
.shadow-xl {
  box-shadow: var(--shadow-xl) !important;
}

.cursor-pointer {
  cursor: pointer !important;
}
.user-select-none {
  user-select: none !important;
}

.w-full {
  width: 100% !important;
}
.w-fit {
  width: fit-content !important;
}
.h-full {
  height: 100% !important;
}

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

/* ========================================
   Interactive Elements
   ======================================== */

.circle-icon {
  cursor: pointer;
  border: 3px solid;
  border-radius: 50%;
  padding: 10px;
  height: 20px;
  width: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-normal);
}

.circle-icon:hover {
  transform: scale(1.1);
}

/* ========================================
   Loading States
   ======================================== */

.spinner-border {
  --bs-spinner-width: 1.5rem;
  --bs-spinner-height: 1.5rem;
  --bs-spinner-border-width: 0.2em;
}

/* ========================================
   Form Elements
   ======================================== */

.form-control {
  display: block;
  width: 100%;
  padding: var(--spacing-base) var(--spacing-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  transition: var(--transition-normal);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(179, 120, 118, 0.2);
}

.form-control::placeholder {
  color: var(--color-text-muted);
}

/* ========================================
   Card Component
   ======================================== */

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

.card:hover {
  box-shadow: var(--shadow-md);
}

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

.card-header {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-secondary);
  border-bottom: 1px solid var(--color-border);
}

.card-footer {
  padding: var(--spacing-md) var(--spacing-lg);
  background-color: var(--color-secondary);
  border-top: 1px solid var(--color-border);
}

.colorful-hr {
  height: 3px;
  width: 100%;
  border-top: 0;
  border-radius: 5px;
  background-image: linear-gradient(to right, #c4e17f, #c4e17f 12.5%, #f7fdca 12.5%, #f7fdca 25%, #fecf71 25%, #fecf71 37.5%, #f0776c 37.5%, #f0776c 50%, #ff4e50 50%, #ff4e50 62.5%, #8e9eab 62.5%, #8e9eab 75%, #669ae1 75%, #669ae1 87.5%, #62c2e4 87.5%, #62c2e4);
}

/* ========================================
   Animation Classes
   ======================================== */

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 0.5;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal) ease-out;
}

.animate-slide-up {
  animation: slideUp var(--transition-normal) ease-out;
}

.animate-pulse {
  animation: pulse 2s ease-in-out infinite;
}

/* ========================================
   Utility Classes
   ======================================== */

.no-select {
  user-select: none !important;
  -webkit-user-select: none !important;
  -moz-user-select: none !important;
  -ms-user-select: none !important;
}

/* ========================================
   Responsive Utilities
   ======================================== */

@media (max-width: 768px) {
  :root {
    --spacing-md: 0.75rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.5rem;
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
  }

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