/**
 * KaliaOps Design System
 * Modern UI CSS Variables & Custom Styles
 */

:root {
  /* Primary Colors - Teal (from logo) */
  --color-primary-50: #f0fdfa;
  --color-primary-100: #ccfbf1;
  --color-primary-200: #99f6e4;
  --color-primary-300: #5eead4;
  --color-primary-400: #2dd4bf;
  --color-primary-500: #14b8a6;
  --color-primary-600: #2d8a8a;
  --color-primary-700: #0f766e;
  --color-primary-800: #115e59;
  --color-primary-900: #134e4a;

  /* Secondary Colors - Navy (from logo) */
  --color-secondary-50: #f0f9ff;
  --color-secondary-100: #e0f2fe;
  --color-secondary-200: #bae6fd;
  --color-secondary-300: #7dd3fc;
  --color-secondary-400: #38bdf8;
  --color-secondary-500: #0ea5e9;
  --color-secondary-600: #1e4d5c;
  --color-secondary-700: #164250;
  --color-secondary-800: #0e3845;
  --color-secondary-900: #072e3a;

  /* Accent Colors */
  --color-accent-orange: #f39c12;
  --color-accent-orange-dark: #e67e22;
  --color-success: #10b981;
  --color-warning: #f39c12;
  --color-error: #ef4444;
  --color-info: #2d8a8a;

  /* Semantic Colors */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f0f9ff;
  --color-bg-tertiary: #e0f2fe;
  --color-text-primary: #1e4d5c;
  --color-text-secondary: #164250;
  --color-text-tertiary: #0ea5e9;
  --color-border: #bae6fd;

  /* Sidebar */
  --sidebar-width: 256px;
  --sidebar-collapsed-width: 64px;
  --sidebar-bg: #1e4d5c;
  --sidebar-text: #e0f2fe;
  --sidebar-hover: #164250;
  --sidebar-active: #2d8a8a;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-2xl: 1rem;

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

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* Dark Mode Support */
.dark {
  --color-bg-primary: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-bg-tertiary: #334155;
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #cbd5e1;
  --color-text-tertiary: #94a3b8;
  --color-border: #334155;
  background-color: #0f172a;
}

/* Custom Max Width - Full HD optimized */
.max-w-8xl {
  max-width: 1800px;
}

/* Utility Classes */
.glass-effect {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.card-modern {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.dark .card-modern {
  background: #1e293b;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
}

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

.dark .card-modern:hover {
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

.btn-primary {
  background: var(--color-primary-600);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background var(--transition-base), transform var(--transition-fast);
}

.btn-primary:hover {
  background: var(--color-primary-700);
  transform: translateY(-1px);
}

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

.btn-secondary {
  background: var(--color-secondary-100);
  color: var(--color-secondary-700);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background var(--transition-base);
}

.btn-secondary:hover {
  background: var(--color-secondary-200);
}

.btn-ghost {
  background: transparent;
  color: var(--color-secondary-700);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background var(--transition-base);
}

.btn-ghost:hover {
  background: var(--color-secondary-100);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary-600);
  border: 2px solid var(--color-primary-600);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: all var(--transition-base);
}

.btn-outline:hover {
  background: var(--color-primary-600);
  color: white;
}

.btn-danger {
  background: var(--color-error);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background var(--transition-base), transform var(--transition-fast);
}

.btn-danger:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

.btn-success {
  background: var(--color-success);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 500;
  transition: background var(--transition-base), transform var(--transition-fast);
}

.btn-success:hover {
  background: #059669;
  transform: translateY(-1px);
}

/* Button Sizes */
.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: 0.875rem;
}

.btn-md {
  padding: 0.5rem 1rem;
  font-size: 1rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1.125rem;
}

/* Form Components */
.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.form-helper {
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
  margin-top: 0.25rem;
}

.form-error {
  font-size: 0.75rem;
  color: var(--color-error);
  margin-top: 0.25rem;
}

.input-modern {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.input-modern:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.input-modern:disabled {
  background-color: var(--color-bg-tertiary);
  cursor: not-allowed;
  opacity: 0.6;
}

.input-modern.error {
  border-color: var(--color-error);
}

.input-modern.error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.textarea-modern {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  min-height: 100px;
  resize: vertical;
}

.textarea-modern:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.select-modern {
  width: 100%;
  padding: 0.625rem 0.875rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
}

.select-modern:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

/* Checkbox and Radio */
.checkbox-modern,
.radio-modern {
  width: 1rem;
  height: 1rem;
  color: var(--color-primary-600);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  cursor: pointer;
}

.radio-modern {
  border-radius: 50%;
}

.checkbox-modern:focus,
.radio-modern:focus {
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

/* Table Components */
.table-modern {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

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

.table-modern th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.table-modern td {
  padding: 1rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
}

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

.table-striped tbody tr:nth-child(even) {
  background-color: var(--color-bg-secondary);
}

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

.table-hover tbody tr:hover {
  background-color: var(--color-primary-50);
}

/* Modal Components */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn var(--transition-base) ease-out;
}

.modal-container {
  background-color: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
  z-index: var(--z-modal);
  animation: slideUp var(--transition-slow) ease-out;
}

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

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Toast Notifications */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  min-width: 300px;
  max-width: 500px;
  padding: 1rem 1.25rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-tooltip);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideInRight var(--transition-slow) ease-out;
}

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

.toast-error {
  background-color: var(--color-error);
  color: white;
}

.toast-warning {
  background-color: var(--color-warning);
  color: white;
}

.toast-info {
  background-color: var(--color-info);
  color: white;
}

/* Typography Hierarchy */
.heading-1 {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
}

.heading-2 {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--color-text-primary);
}

.heading-3 {
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--color-text-primary);
}

.heading-4 {
  font-size: 1.25rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-text-primary);
}

.heading-5 {
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text-primary);
}

.heading-6 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--color-text-primary);
}

.body-large {
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--color-text-primary);
}

.body-normal {
  font-size: 1rem;
  line-height: 1.625;
  color: var(--color-text-primary);
}

.body-small {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

.caption {
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--color-text-tertiary);
}

.overline {
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1.5;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Accessibility Utilities */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Form helper field (used for validation metadata) */
.field-note {
  position: absolute;
  left: -5000px;
}

.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary-600);
  color: white;
  padding: 0.5rem 1rem;
  z-index: 100;
  transition: top var(--transition-base);
}

.skip-to-content:focus {
  top: 0;
}

.focus-visible-only:focus:not(:focus-visible) {
  outline: none;
}

/* Focus States for Accessibility */
*:focus {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

button:focus,
a:focus {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Loading State */
@keyframes pulse-subtle {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.7;
  }
}

.loading-pulse {
  animation: pulse-subtle 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Fade In Animation */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

/* Slide In Animation */
@keyframes slideInRight {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(0);
  }
}

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

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--color-secondary-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-secondary-400);
}

/* Hide scrollbar for sidebar navigation */
#sidebar nav::-webkit-scrollbar {
  width: 0px;
  display: none;
}

#sidebar nav {
  scrollbar-width: none; /* Firefox */
  -ms-overflow-style: none; /* IE and Edge */
}

/* Sidebar Links - Remove focus outline on click, keep for keyboard navigation */
.sidebar-link:focus {
  outline: none;
}

.sidebar-link:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Sidebar Toggle Button - Remove outline */
#sidebar-toggle:focus {
  outline: none;
}

#sidebar-toggle:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Sidebar Toggle Icon - Smooth rotation with hardware acceleration */
#sidebar-toggle-icon {
  transition: transform 200ms ease-in-out;
  transform-origin: center center;
  transform: translateZ(0); /* Enable hardware acceleration */
  will-change: transform; /* Optimize for transform changes */
  backface-visibility: hidden; /* Prevent flickering during rotation */
}

/* Active sidebar link should not change on hover */
.sidebar-link.bg-teal-600:hover {
  background-color: #0d9488 !important; /* Keep teal-600 color */
}

/* Sidebar Collapsed State */
#sidebar.sidebar-collapsed .sidebar-link {
  justify-content: center;
  padding-left: 0.75rem;
  padding-right: 0.75rem;
}

#sidebar.sidebar-collapsed #sidebar-toggle {
  position: static;
  transform: none;
  margin: 0 auto;
}

#sidebar.sidebar-collapsed .h-16 {
  justify-content: center;
}

/* Sidebar Scroll Indicators */
.sidebar-scroll-indicator {
  position: absolute;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 2rem;
  background: linear-gradient(to bottom, rgba(30, 41, 59, 0.95), transparent);
  z-index: 10;
}

.sidebar-scroll-indicator.bottom-24 {
  background: linear-gradient(to top, rgba(30, 41, 59, 0.95), transparent);
}

#sidebar.sidebar-collapsed .sidebar-scroll-indicator svg {
  width: 1.25rem;
  height: 1.25rem;
}

/* Sidebar HR separators - ensure they stay behind scroll indicators but visible */
#sidebar-nav .border-t {
  position: relative;
  z-index: 5;
}

/* Sidebar Footer user circle - ensure it stays above scroll indicators */
#sidebar > div:last-child .bg-teal-600.rounded-full {
  position: relative;
  z-index: 20;
}

/* Responsive Typography */
@media (max-width: 640px) {
  html {
    font-size: 14px;
  }

  .heading-1 {
    font-size: 1.875rem;
  }

  .heading-2 {
    font-size: 1.5rem;
  }

  .heading-3 {
    font-size: 1.25rem;
  }
}

@media (min-width: 1800px) {
  html {
    font-size: 16px;
  }
}

/* Print Styles */
@media print {
  .no-print,
  .sidebar,
  .navbar,
  .btn-primary,
  .btn-secondary,
  .toast {
    display: none !important;
  }

  body {
    background: white;
    color: black;
  }

  .card-modern {
    box-shadow: none;
    border: 1px solid #e5e7eb;
  }
}

/* Container Utilities */
.container-fluid {
  width: 100%;
  padding-right: var(--spacing-md);
  padding-left: var(--spacing-md);
  margin-right: auto;
  margin-left: auto;
}

@media (min-width: 640px) {
  .container-fluid {
    max-width: 640px;
  }
}

@media (min-width: 768px) {
  .container-fluid {
    max-width: 768px;
  }
}

@media (min-width: 1024px) {
  .container-fluid {
    max-width: 1024px;
  }
}

@media (min-width: 1280px) {
  .container-fluid {
    max-width: 1280px;
  }
}

@media (min-width: 1800px) {
  .container-fluid {
    max-width: 1800px;
  }
}