/* ===================================
  UMKM Sales App - Main Design System
   =================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ===================================
  CSS Custom Properties
   =================================== */

:root {
  /* Color Palette - Black & White Theme */
  --primary-gradient: linear-gradient(135deg, #000000 0%, #333333 100%);
  --secondary-gradient: linear-gradient(135deg, #666666 0%, #999999 100%);
  --success-gradient: linear-gradient(135deg, #444444 0%, #666666 100%);
  --accent-gradient: linear-gradient(135deg, #222222 0%, #555555 100%);

  --primary-color: #000000;
  --primary-dark: #000000;
  --secondary-color: #333333;
  --accent-color: #555555;
  --success-color: #666666;

  /* Neutral Colors - Black & White */
  --bg-primary: #FFFFFF;
  --bg-secondary: #F5F5F5;
  --bg-tertiary: #E0E0E0;
  --surface: rgba(0, 0, 0, 0.05);
  --surface-hover: rgba(0, 0, 0, 0.1);

  /* Text Colors */
  --text-primary: #000000;
  --text-secondary: #333333;
  --text-tertiary: #666666;

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.9);
  --glass-border: rgba(0, 0, 0, 0.15);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.2);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
}

/* ===================================
   Reset & Base Styles
   =================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background:
    radial-gradient(circle at 20% 50%, rgba(0, 0, 0, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(0, 0, 0, 0.03) 0%, transparent 50%),
    radial-gradient(circle at 40% 90%, rgba(0, 0, 0, 0.02) 0%, transparent 50%);
  z-index: -1;
  animation: bgPulse 20s ease-in-out infinite;
}

@keyframes bgPulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.8;
  }
}

/* ===================================
   Typography
   =================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: var(--font-size-5xl);
}

h2 {
  font-size: var(--font-size-4xl);
}

h3 {
  font-size: var(--font-size-3xl);
}

h4 {
  font-size: var(--font-size-2xl);
}

h5 {
  font-size: var(--font-size-xl);
}

h6 {
  font-size: var(--font-size-lg);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--text-secondary);
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

/* Glassmorphism Card */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-base);
  font-weight: 600;
  font-family: var(--font-family);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width var(--transition-slow), height var(--transition-slow);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: var(--primary-gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

.btn-secondary {
  background: var(--secondary-gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(118, 75, 162, 0.4);
}

.btn-secondary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(118, 75, 162, 0.6);
}

.btn-success {
  background: var(--success-gradient);
  color: white;
  box-shadow: 0 4px 15px rgba(79, 172, 254, 0.4);
}

.btn-success:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 172, 254, 0.6);
}

.btn-danger {
  background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(245, 87, 108, 0.4);
}

.btn-danger:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 87, 108, 0.6);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--glass-border);
}

.btn-ghost:hover {
  background: var(--surface-hover);
  border-color: var(--primary-color);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-size: var(--font-size-base);
  font-family: var(--font-family);
  color: var(--text-primary);
  background: var(--surface);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

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

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  max-width: 600px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  transform: scale(0.9);
  transition: transform var(--transition-base);
}

.modal-overlay.active .modal {
  transform: scale(1);
  animation: modalSlideIn var(--transition-slow);
}

@keyframes modalSlideIn {
  from {
    transform: scale(0.9) translateY(20px);
    opacity: 0;
  }

  to {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--glass-border);
}

.modal-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin: 0;
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: var(--font-size-2xl);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

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

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

.modal-footer {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: flex-end;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--glass-border);
}

/* Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

.badge-success {
  background: var(--success-gradient);
  color: white;
}

.badge-danger {
  background: var(--secondary-gradient);
  color: white;
}

.badge-warning {
  background: var(--accent-gradient);
  color: white;
}

/* Loading Spinner */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--surface);
  border-top: 4px solid var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInRight {
  from {
    transform: translateX(100%);
  }

  to {
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight var(--transition-slow) ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2rem;
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .modal {
    width: 95%;
    padding: var(--spacing-md);
  }

  .btn {
    padding: 0.625rem 1.25rem;
    font-size: var(--font-size-sm);
  }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--surface-hover);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}