/**
 * 100x Life Planning System - Base Styles
 * Reset, typography, and common elements
 */

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

body {
  font-family: var(--font-body);
  background: var(--bg-secondary);
  color: var(--text-dark);
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
}

/* Typography */
h1 {
  font-size: 2.25rem;
  font-weight: 600;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

h4 {
  font-size: 1.1rem;
  font-weight: 600;
}

p {
  line-height: 1.5;
}

/* Links */
a {
  color: var(--teal-accent);
  text-decoration: none;
}

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

/* Focus states for accessibility */
:focus-visible {
  outline: 2px solid var(--teal-accent);
  outline-offset: 2px;
}

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

/* Skip link for keyboard navigation */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--navy-primary);
  color: var(--text-light);
  padding: 8px 16px;
  z-index: 9999;
  text-decoration: none;
  font-weight: 500;
}

.skip-link:focus {
  top: 0;
}

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

::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
}

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

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

/* Selection */
::selection {
  background: var(--teal-light);
  color: var(--navy-primary);
}

/* Utility classes */
.text-muted {
  color: var(--text-muted);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-primary {
  color: var(--navy-primary);
}

.text-accent {
  color: var(--teal-accent);
}

.font-heading {
  font-family: var(--font-heading);
}

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