@import url('./tokens.css');

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior-x: contain; /* Prevent Safari back gesture */
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overscroll-behavior-x: contain; /* Prevent Safari back gesture */
}

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

/* Remove focus outline for mouse users */
:focus:not(:focus-visible) {
  outline: none;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-5);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-secondary);
}

header h1 {
  margin: 0;
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

.gantt-container {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.gantt-container timeline-ruler {
  flex-shrink: 0;
}

.gantt-container timeline-ruler[direction="up"] {
  border-bottom: 1px solid var(--color-border);
}

.gantt-container timeline-ruler[direction="down"] {
  border-top: 1px solid var(--color-border);
}

.gantt-container gantt-chart {
  flex: 1;
}