/**
 * Circle Design System - CSS Variables
 * Extracted from Mastermind Club community site
 * Use these tokens for consistent styling with Circle's UI
 */

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

:root {
  /* ===== Brand Colors ===== */
  --brand: #E85B03;
  --brand-button-text: #FFFFFF;
  --brand-light: #F8D35B;
  --brand-dark: #0E0E0E;

  /* ===== Typography ===== */
  --font-sans: "Inter", system-ui, "Apple Color Emoji", "Segoe UI Emoji",
               "Segoe UI Symbol", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", ui-monospace, monospace;

  /* Font Sizes */
  --text-xs: 12px;
  --text-sm: 14px;
  --text-md: 16px;
  --text-lg: 20px;
  --text-xl: 24px;
  --text-2xl: 32px;
  --text-3xl: 40px;

  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Line Heights */
  --leading-xs: 18px;
  --leading-sm: 20px;
  --leading-md: 24px;
  --leading-lg: 28px;
  --leading-xl: 32px;
  --leading-2xl: 40px;

  /* Letter Spacing */
  --tracking-tight: -0.3px;
  --tracking-normal: 0px;
  --tracking-wide: 0.5px;

  /* ===== Color Palette ===== */

  /* Grays */
  --color-grey-0: #ffffff;
  --color-grey-50: #f7f9fa;
  --color-grey-100: #f0f3f5;
  --color-grey-200: #e4e7eb;
  --color-grey-300: #d2d7db;
  --color-grey-400: #a5a9ad;
  --color-grey-500: #717680;
  --color-grey-600: #545861;
  --color-grey-700: #42464d;
  --color-grey-800: #2b2e33;
  --color-grey-900: #191b1f;

  /* Blues */
  --color-blue-50: #eff6ff;
  --color-blue-100: #dbeafe;
  --color-blue-200: #bfdbfe;
  --color-blue-300: #93c5fd;
  --color-blue-400: #60a5fa;
  --color-blue-500: #3b82f6;
  --color-blue-600: #2563eb;
  --color-blue-700: #1d4ed8;
  --color-blue-800: #1e40af;
  --color-blue-900: #1e3a8a;

  /* Greens */
  --color-green-50: #f0fdf4;
  --color-green-100: #dcfce7;
  --color-green-200: #bbf7d0;
  --color-green-300: #86efac;
  --color-green-400: #4ade80;
  --color-green-500: #22c55e;
  --color-green-600: #16a34a;
  --color-green-700: #15803d;
  --color-green-800: #065f46;
  --color-green-900: #14532d;

  /* Reds */
  --color-red-50: #fef2f2;
  --color-red-100: #fee2e2;
  --color-red-200: #fecaca;
  --color-red-300: #fca5a5;
  --color-red-400: #f87171;
  --color-red-500: #ef4444;
  --color-red-600: #dc2626;
  --color-red-700: #b91c1c;
  --color-red-800: #991b1b;
  --color-red-900: #7f1d1d;

  /* Ambers/Warnings */
  --color-amber-50: #fffbeb;
  --color-amber-100: #fef3c7;
  --color-amber-200: #fde68a;
  --color-amber-300: #fcd34d;
  --color-amber-400: #fbbf24;
  --color-amber-500: #f59e0b;
  --color-amber-600: #d97706;
  --color-amber-700: #b45309;
  --color-amber-800: #92400e;
  --color-amber-900: #78350f;

  /* Royal Blue (Circle Brand) */
  --color-royal-blue-100: #f8f8ff;
  --color-royal-blue-200: #dbe0fc;
  --color-royal-blue-300: #95a7f9;
  --color-royal-blue-400: #E85B03;

  /* ===== Semantic Colors ===== */

  /* Backgrounds */
  --color-background-primary: #ffffff;
  --color-background-secondary: #f7f9fa;
  --color-background-tertiary: #f0f3f5;
  --color-background-hover: var(--color-grey-50);
  --color-background-active: var(--color-grey-100);
  --color-background-disabled: var(--color-grey-200);
  --color-background-inverse: var(--color-grey-900);
  --color-background-overlay: rgba(25, 27, 31, 0.2);
  --color-background-brand: var(--color-royal-blue-400);
  --color-background-danger: var(--color-red-600);
  --color-background-danger-light: rgba(239, 68, 68, 0.1);
  --color-background-success: var(--color-green-500);
  --color-background-success-light: rgba(34, 197, 94, 0.1);
  --color-background-warning: var(--color-amber-400);
  --color-background-warning-light: rgba(245, 158, 11, 0.1);
  --color-background-info: var(--color-blue-500);
  --color-background-info-light: rgba(59, 130, 246, 0.1);

  /* Text */
  --color-text-primary: var(--color-grey-900);
  --color-text-secondary: var(--color-grey-600);
  --color-text-tertiary: var(--color-grey-500);
  --color-text-disabled: var(--color-grey-400);
  --color-text-inverse: var(--color-grey-50);
  --color-text-link: #2563eb;
  --color-text-link-hover: var(--color-blue-800);
  --color-text-danger: var(--color-red-800);
  --color-text-success: var(--color-green-800);
  --color-text-warning: var(--color-amber-800);
  --color-text-info: var(--color-blue-800);

  /* Borders */
  --color-border-primary: #e4e7eb;
  --color-border-secondary: #717680;
  --color-border-hover: var(--color-grey-300);
  --color-border-active: var(--color-grey-400);
  --color-border-focus: var(--color-grey-500);
  --color-border-disabled: var(--color-grey-100);
  --color-border-danger: var(--color-red-800);
  --color-border-success: var(--color-green-800);
  --color-border-warning: var(--color-amber-800);

  /* Icons */
  --color-icon-primary: var(--color-grey-900);
  --color-icon-secondary: var(--color-grey-600);
  --color-icon-tertiary: var(--color-grey-500);
  --color-icon-disabled: var(--color-grey-400);

  /* ===== Spacing ===== */
  --spacing-0: 0px;
  --spacing-1: 4px;
  --spacing-2: 8px;
  --spacing-3: 12px;
  --spacing-4: 16px;
  --spacing-5: 20px;
  --spacing-6: 24px;
  --spacing-7: 28px;
  --spacing-8: 32px;
  --spacing-9: 36px;
  --spacing-10: 40px;
  --spacing-11: 44px;
  --spacing-12: 48px;
  --spacing-16: 64px;
  --spacing-20: 80px;

  /* ===== Border Radius ===== */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-3xl: 24px;
  --radius-full: 9999px;

  /* ===== Shadows ===== */
  --shadow-2xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-xs: 0 1px 4px 0 rgba(0, 0, 0, 0.03), 0 1px 4px 0 rgba(0, 0, 0, 0.03);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-focus: 0 0 0 3px rgba(113, 118, 128, 0.3);
  --shadow-focus-danger: 0 0 0 3px rgba(220, 38, 38, 0.4);

  /* ===== Layout ===== */
  --navbar-height: 64px;
  --sidebar-width: 281px;
  --right-sidebar-width: 320px;
  --content-max-width: 680px;

  /* ===== Z-Index ===== */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal-backdrop: 300;
  --z-modal: 400;
  --z-tooltip: 500;
  --z-notification: 600;
}

/* ===== Base Styles ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: var(--leading-md);
  color: var(--color-text-primary);
  background-color: var(--color-background-secondary);
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== Typography Utilities ===== */
.text-xs { font-size: var(--text-xs); line-height: var(--leading-xs); }
.text-sm { font-size: var(--text-sm); line-height: var(--leading-sm); }
.text-md { font-size: var(--text-md); line-height: var(--leading-md); }
.text-lg { font-size: var(--text-lg); line-height: var(--leading-lg); }
.text-xl { font-size: var(--text-xl); line-height: var(--leading-xl); }
.text-2xl { font-size: var(--text-2xl); line-height: var(--leading-2xl); }

.font-normal { font-weight: var(--font-weight-normal); }
.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-primary { color: var(--color-text-primary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-disabled { color: var(--color-text-disabled); }
.text-inverse { color: var(--color-text-inverse); }
.text-link { color: var(--color-text-link); }
.text-danger { color: var(--color-text-danger); }
.text-success { color: var(--color-text-success); }
.text-warning { color: var(--color-text-warning); }

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

/* Navbar */
.circle-navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
  padding: var(--spacing-2) var(--spacing-9);
  background-color: #1e1e1e;
  border-bottom: 1px solid #373737;
}

.circle-navbar-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  color: var(--brand-button-text);
  font-weight: var(--font-weight-semibold);
  font-size: var(--text-lg);
}

.circle-navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

.circle-navbar-link {
  color: var(--brand-button-text);
  text-decoration: none;
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  transition: background-color 0.15s ease;
}

.circle-navbar-link:hover,
.circle-navbar-link.active {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Layout Container */
.circle-layout {
  display: flex;
  min-height: calc(100vh - var(--navbar-height));
}

/* Left Sidebar */
.circle-sidebar {
  width: var(--sidebar-width);
  background-color: var(--color-background-primary);
  border-right: 1px solid var(--color-border-primary);
  padding: var(--spacing-4);
  overflow-y: auto;
}

.circle-sidebar-section {
  margin-bottom: var(--spacing-6);
}

.circle-sidebar-header {
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  padding: var(--spacing-2) var(--spacing-3);
  margin-bottom: var(--spacing-1);
}

.circle-sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  transition: all 0.15s ease;
}

.circle-sidebar-link:hover {
  background-color: var(--color-background-tertiary);
  color: var(--color-text-primary);
}

.circle-sidebar-link.active {
  background-color: var(--brand);
  color: var(--color-text-inverse);
}

.circle-sidebar-badge {
  margin-left: auto;
  background-color: var(--color-grey-200);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  padding: 2px 8px;
  border-radius: var(--radius-full);
}

/* Main Content */
.circle-main {
  flex: 1;
  padding: var(--spacing-6);
  max-width: var(--content-max-width);
  margin: 0 auto;
}

/* Right Sidebar */
.circle-right-sidebar {
  width: var(--right-sidebar-width);
  padding: var(--spacing-6);
}

/* ===== Components ===== */

/* Card */
.circle-card {
  background-color: var(--color-background-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-primary);
  padding: var(--spacing-6);
  margin-bottom: var(--spacing-4);
}

.circle-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-4);
}

.circle-card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

/* Page Header */
.circle-page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-6);
}

.circle-page-title {
  font-size: var(--text-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin: 0;
}

/* Button */
.circle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.15s ease;
  border: none;
}

.circle-btn-primary {
  background-color: #0E0E0E;
  color: var(--brand-button-text);
}

.circle-btn-primary:hover {
  background-color: #4a5c5c;
}

.circle-btn-secondary {
  background-color: transparent;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-md);
}

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

.circle-btn-ghost {
  background-color: transparent;
  color: var(--color-text-tertiary);
  padding: var(--spacing-2) var(--spacing-3);
}

.circle-btn-ghost:hover {
  background-color: var(--color-background-tertiary);
  color: var(--color-text-primary);
}

/* Input */
.circle-input {
  width: 100%;
  padding: var(--spacing-3) var(--spacing-4);
  background-color: var(--color-background-primary);
  border: 1px solid var(--color-grey-300);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  transition: all 0.15s ease;
}

.circle-input:focus {
  outline: none;
  border-color: var(--color-border-focus);
  box-shadow: var(--shadow-focus);
}

.circle-input::placeholder {
  color: var(--color-text-disabled);
}

/* Badge */
.circle-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--spacing-2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-medium);
}

.circle-badge-default {
  background-color: var(--color-background-tertiary);
  color: var(--color-text-secondary);
}

.circle-badge-primary {
  background-color: var(--brand);
  color: var(--color-text-inverse);
}

.circle-badge-success {
  background-color: var(--color-background-success-light);
  color: var(--color-text-success);
}

.circle-badge-warning {
  background-color: var(--color-background-warning-light);
  color: var(--color-text-warning);
}

.circle-badge-danger {
  background-color: var(--color-background-danger-light);
  color: var(--color-text-danger);
}

.circle-badge-info {
  background-color: var(--color-background-info-light);
  color: var(--color-text-info);
}

/* Avatar */
.circle-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-grey-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-secondary);
  overflow: hidden;
}

.circle-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.circle-avatar-sm { width: 32px; height: 32px; font-size: var(--text-xs); }
.circle-avatar-lg { width: 48px; height: 48px; font-size: var(--text-md); }
.circle-avatar-xl { width: 64px; height: 64px; font-size: var(--text-lg); }

/* Table */
.circle-table {
  width: 100%;
  border-collapse: collapse;
}

.circle-table th {
  text-align: left;
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  border-bottom: 1px solid var(--color-border-primary);
  background-color: var(--color-background-secondary);
}

.circle-table td {
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-primary);
}

.circle-table tr:hover td {
  background-color: var(--color-background-secondary);
}

/* KPI Card (for dashboards) */
.circle-kpi {
  background-color: var(--color-background-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-6);
  border: 1px solid var(--color-border-primary);
}

.circle-kpi-label {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--spacing-2);
}

.circle-kpi-value {
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.circle-kpi-change {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-1);
  font-size: var(--text-xs);
  margin-top: var(--spacing-2);
}

.circle-kpi-change.positive { color: var(--color-green-600); }
.circle-kpi-change.negative { color: var(--color-red-600); }

/* Tabs */
.circle-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border-primary);
  margin-bottom: var(--spacing-6);
}

.circle-tab {
  padding: var(--spacing-3) var(--spacing-4);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-tertiary);
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
}

.circle-tab:hover {
  color: var(--color-text-primary);
}

.circle-tab.active {
  color: var(--brand);
  border-bottom-color: var(--brand);
}

/* Tooltip */
.circle-tooltip {
  position: relative;
}

.circle-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--spacing-2) var(--spacing-3);
  background-color: var(--color-background-inverse);
  color: var(--color-text-inverse);
  font-size: var(--text-xs);
  border-radius: var(--radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all 0.15s ease;
  z-index: var(--z-tooltip);
}

.circle-tooltip:hover::after {
  opacity: 1;
  visibility: visible;
}

/* Dropdown */
.circle-dropdown {
  position: relative;
}

.circle-dropdown-menu {
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 200px;
  background-color: var(--color-background-primary);
  border: 1px solid var(--color-border-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-2);
  z-index: var(--z-dropdown);
}

.circle-dropdown-item {
  display: block;
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.circle-dropdown-item:hover {
  background-color: var(--color-background-tertiary);
  color: var(--color-text-primary);
}