@import url('https://fonts.googleapis.com/css2?family=Hind+Siliguri:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  /* Typography */
  --font-bn: 'Hind Siliguri', sans-serif;
  --font-en: 'Plus Jakarta Sans', sans-serif;
  --font-base: var(--font-bn), var(--font-en), sans-serif;

  --text-xs: 12px;
  --text-sm: 13px;
  --text-base: 14px;
  --text-md: 16px;
  --text-lg: 20px;
  --text-xl: 24px;

  --leading-body: 1.6;
  --leading-heading: 1.3;

  /* Brand */
  --color-brand: #f5b800;
  --color-brand-hover: #e5a800;
  --color-brand-light: #fef3c7;
  --color-brand-soft: #fff8e1;
  --color-brand-muted: #fef3c7;
  --color-brand-dark: #92400e;

  /* Surfaces */
  --color-bg: #f0f2f5;
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-sidebar: #fafbfc;

  /* Text */
  --color-text-primary: #111827;
  --color-text-deep: #0a0a0a;
  --color-text-secondary: #4b5563;
  --color-text-muted: #9ca3af;
  --font-weight-nav: 600;
  --font-weight-nav-active: 700;

  /* Borders */
  --color-border: #e5e7eb;
  --color-border-light: #f3f4f6;

  /* Interactive — warm yellow */
  --color-hover: #f3f4f6;
  --color-active: #fff8e1;
  --color-active-strong: #fef3c7;
  --color-active-border: #f5b800;
  --color-focus-ring: rgba(245, 184, 0, 0.2);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06), 0 4px 16px rgba(0, 0, 0, 0.04);
  --shadow-hover: 0 4px 20px rgba(245, 184, 0, 0.12);
  --shadow-brand: 0 4px 14px rgba(245, 184, 0, 0.25);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

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

  /* Layout */
  --header-height: 60px;
  --sidebar-width: 252px;

  /* Responsive */
  --bp-tablet: 992px;
  --bp-mobile: 768px;
  --touch-min: 44px;
  --page-padding-mobile: 12px;
}

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

body {
  font-family: var(--font-base);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  background: var(--color-bg);
  color: var(--color-text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

a {
  text-decoration: none;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--color-active-border);
  outline-offset: 2px;
}