/* =====================================================
   Timeframe ARB V2 - Main Styles
   Design System: CSS Variables, Reset, Base, Layout
   ===================================================== */

/* ==================== Design Tokens ==================== */
:root {
  /* Colors - Dark Theme */
  --color-bg-primary: #0d1117;
  --color-bg-secondary: #161b22;
  --color-bg-tertiary: #21262d;
  --color-bg-elevated: #1c2128;
  --color-border: #30363d;
  --color-border-muted: #21262d;

  /* Text Colors */
  --color-text-primary: #c9d1d9;
  --color-text-secondary: #8b949e;
  --color-text-muted: #6e7681;
  --color-text-link: #58a6ff;

  /* Semantic Colors */
  --color-accent: #58a6ff;
  --color-success: #3fb950;
  --color-danger: #f85149;
  --color-warning: #f0883e;
  --color-info: #58a6ff;

  /* Brand Colors */
  --color-btc: #f7931a;
  --color-eth: #627eea;
  --color-sol: #9945ff;
  --color-xrp: #00aae4;

  /* Status Colors */
  --color-status-running: #238636;
  --color-status-stopped: #484f58;
  --color-status-active: #f0883e;
  --color-status-live: #da3633;
  --color-status-sim: #388bfd;

  /* Spacing Scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 24px;
  --space-2xl: 32px;
  --space-3xl: 48px;

  /* Typography */
  --font-family: 'SF Mono', 'Consolas', 'Monaco', 'Liberation Mono', monospace;
  --font-size-xs: 0.7rem;
  --font-size-sm: 0.8rem;
  --font-size-base: 0.9rem;
  --font-size-lg: 1rem;
  --font-size-xl: 1.2rem;
  --font-size-2xl: 1.5rem;
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);

  /* Transitions */
  --transition-fast: 0.1s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;

  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-toast: 400;

  /* Layout */
  --header-height: 56px;
  --sidebar-width: 280px;
  --content-max-width: 1400px;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background: var(--color-bg-primary);
  min-height: 100vh;
}

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

a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

button {
  font-family: inherit;
  cursor: pointer;
}

input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
}

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

img {
  max-width: 100%;
  height: auto;
}

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

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flex Utilities */
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-xs { gap: var(--space-xs); }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }
.flex-1 { flex: 1; }
.flex-shrink-0 { flex-shrink: 0; }

/* Text */
.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-text-secondary); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-warning { color: var(--color-warning); }
.text-btc { color: var(--color-btc); }
.text-eth { color: var(--color-eth); }
.text-sol { color: var(--color-sol); }
.text-xrp { color: var(--color-xrp); }
.text-link { color: #58a6ff; text-decoration: none; }
.text-link:hover { text-decoration: underline; }
.tooltip-trigger {
  color: var(--color-warning);
  cursor: help;
  font-size: 0.75em;
  margin-left: 2px;
}
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.whitespace-nowrap { white-space: nowrap; }
.tabular-nums { font-variant-numeric: tabular-nums; }

/* Spacing */
.m-0 { margin: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.ml-auto { margin-left: auto; }
.p-0 { padding: 0; }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.px-sm { padding-left: var(--space-sm); padding-right: var(--space-sm); }
.px-md { padding-left: var(--space-md); padding-right: var(--space-md); }
.px-lg { padding-left: var(--space-lg); padding-right: var(--space-lg); }
.py-sm { padding-top: var(--space-sm); padding-bottom: var(--space-sm); }
.py-md { padding-top: var(--space-md); padding-bottom: var(--space-md); }

/* Borders */
.border { border: 1px solid var(--color-border); }
.border-t { border-top: 1px solid var(--color-border); }
.border-b { border-bottom: 1px solid var(--color-border); }
.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

/* Background */
.bg-primary { background: var(--color-bg-primary); }
.bg-secondary { background: var(--color-bg-secondary); }
.bg-tertiary { background: var(--color-bg-tertiary); }

/* Width */
.w-full { width: 100%; }
.max-w-full { max-width: 100%; }

/* Overflow */
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-hidden { overflow: hidden; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.sticky { position: sticky; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* Opacity */
.opacity-50 { opacity: 0.5; }
.opacity-70 { opacity: 0.7; }

/* ==================== Layout ==================== */

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

.main-content {
  flex: 1;
  padding: var(--space-lg);
  max-width: var(--content-max-width);
  margin: 0 auto;
  width: 100%;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}

/* Two Column Layout */
.two-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
}

/* Section */
.section {
  margin-bottom: var(--space-xl);
}

.section:last-child {
  margin-bottom: 0;
}

/* ==================== Animations ==================== */

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

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

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

.animate-pulse { animation: pulse 2s ease-in-out infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-blink { animation: blink 1s ease-in-out infinite; }

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

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

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

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

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) var(--color-bg-secondary);
}

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

.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-tertiary) 25%,
    var(--color-bg-secondary) 50%,
    var(--color-bg-tertiary) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius-sm);
}

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

.skeleton-text {
  height: 1em;
  width: 100%;
}

.skeleton-text-sm {
  height: 0.8em;
  width: 60%;
}