/* Global CSS Reset and Variables */

:root {
  /* Colors */
  --color-primary: #1976d2;
  --color-primary-light: #4791db;
  --color-primary-dark: #115293;
  --color-secondary: #00acc1;
  --color-secondary-light: #33c9dc;
  --color-secondary-dark: #008394;
  --color-success: #4caf50;
  --color-warning: #ff9800;
  --color-error: #f44336;
  --color-info: #2196f3;

  /* Background Colors */
  --bg-default: #f5f5f5;
  --bg-paper: #ffffff;
  --bg-dark: #121212;

  /* Text Colors */
  --text-primary: rgba(0, 0, 0, 0.87);
  --text-secondary: rgba(0, 0, 0, 0.6);
  --text-disabled: rgba(0, 0, 0, 0.38);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-round: 50%;

  /* Shadows */
  --shadow-sm: 0px 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0px 4px 8px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0px 8px 16px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0px 16px 24px rgba(0, 0, 0, 0.05);

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

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

  /* Breakpoints */
  --breakpoint-xs: 0px;
  --breakpoint-sm: 600px;
  --breakpoint-md: 960px;
  --breakpoint-lg: 1280px;
  --breakpoint-xl: 1920px;

  /* Font Sizes */
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-md: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 1.875rem;
  --font-4xl: 2.25rem;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Font Weights */
  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;

  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1280px;
  --container-2xl: 1536px;
}

/* Dark Mode Variables */
[data-theme='dark'] {
  --color-primary: #29b6f6;
  --color-primary-light: #4fc3f7;
  --color-primary-dark: #0288d1;
  --color-secondary: #ff5252;
  --color-secondary-light: #ff8a80;
  --color-secondary-dark: #c50e29;

  --bg-default: #0a0e27;
  --bg-paper: #1e1e2e;

  --text-primary: rgba(255, 255, 255, 1);
  --text-secondary: rgba(255, 255, 255, 0.7);
  --text-disabled: rgba(255, 255, 255, 0.5);

  --shadow-sm: 0px 2px 4px rgba(0, 0, 0, 0.2);
  --shadow-md: 0px 4px 8px rgba(0, 0, 0, 0.2);
  --shadow-lg: 0px 8px 16px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0px 16px 24px rgba(0, 0, 0, 0.2);
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  background-color: var(--bg-default);
  color: var(--text-primary);
  line-height: var(--line-height-normal);
}

#root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: var(--font-semibold);
  line-height: var(--line-height-tight);
}

p {
  margin: 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* Lists */
ul, ol {
  list-style: none;
  padding: 0;
  margin: 0;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Buttons */
button {
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

/* Forms */
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

/* Tables */
table {
  border-collapse: collapse;
  width: 100%;
}

/* Focus Visible */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background-color: var(--color-primary);
  color: white;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-paper);
  border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb {
  background: var(--text-disabled);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast);
}

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

/* Utility Classes */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

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

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

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

@media (min-width: 1536px) {
  .container {
    max-width: var(--container-2xl);
  }
}

/* Loading States */
.skeleton {
  animation: skeleton-loading 1.5s infinite;
  background: linear-gradient(
    90deg,
    var(--bg-paper) 0%,
    rgba(0, 0, 0, 0.05) 50%,
    var(--bg-paper) 100%
  );
  background-size: 200% 100%;
}

@keyframes skeleton-loading {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideIn {
  from {
    transform: translateY(-10px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

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

.slide-in {
  animation: slideIn var(--transition-normal) ease-in-out;
}

.spin {
  animation: spin 1s linear infinite;
}

/* Print Styles */
@media print {
  body {
    background: white;
    color: black;
  }

  .no-print {
    display: none !important;
  }
}