/* Modern Korean paper surfaces layered over the existing product design. */
.sidebar {
  border-right-color: var(--k-ink-border);
  background: var(--sidebar-bg);
  box-shadow: 1px 0 0 var(--separator);
}

.brand-mark {
  border-color: var(--k-ink-border);
  background: var(--k-paper);
}

.page-heading .page-kicker {
  color: var(--accent);
}

.page-heading h1::after {
  background: var(--k-coral);
  box-shadow: none;
}

.app-header {
  padding-bottom: var(--space-4);
  border-bottom: var(--hairline);
}

.app-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 42px;
  height: 2px;
  background: var(--k-coral);
}

button,
input,
select,
textarea,
.semester-trigger,
.filter-toggle {
  border-color: var(--k-ink-border);
  background-color: var(--k-paper);
}

button.primary {
  border-color: transparent;
  background: var(--accent);
}

.nav-indicator {
  background: var(--accent);
  box-shadow: var(--shadow-button);
}

.department-toggle,
.tabs,
.coordination-department-toggle {
  border-color: var(--k-ink-border);
  background: var(--surface-tertiary);
}

.segment-indicator {
  border-color: var(--k-ink-border);
  background: var(--k-paper);
}

.schedule-card {
  border-color: var(--k-ink-border);
  background: var(--k-paper);
  box-shadow: var(--shadow-soft);
}

.schedule-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 28px;
  z-index: 18;
  width: 38px;
  height: 2px;
  background: var(--k-coral);
  pointer-events: none;
}

.schedule-grid,
.time-cell,
.time-cell.first-time,
.slot,
.time-end-label,
.time-cell > span {
  background-color: var(--k-paper);
}

.grid-head {
  background: var(--k-paper-muted);
}

.grid-head:not(.time-head) {
  color: var(--k-indigo-pressed);
}

.class-block {
  background: var(--surface-secondary);
}

.month-card,
.day,
.dropzone,
.selected-preview,
.preview-placeholder,
.coordination-grid,
.coordination-detail,
.community-posts,
.community-post,
.community-detail-inner,
.community-selected-post,
.community-comments,
.community-locked,
.print-settings {
  border-color: var(--k-ink-border);
  background-color: var(--k-paper);
}

.month-card,
.dropzone,
.coordination-detail,
.community-detail-inner,
.community-locked,
.print-settings {
  box-shadow: 0 1px 2px var(--separator), 0 10px 28px var(--separator);
}

.community-post.selected {
  background: var(--accent-softer);
  box-shadow: inset 3px 0 0 var(--accent);
}

.community-replies {
  border-left-color: var(--k-coral-soft);
}

.community-compose textarea,
.community-comment-form textarea,
.community-title-field input,
.community-privacy-toggle,
.community-comment-privacy,
.community-account-card,
.print-settings .print-orientation-toggle {
  background: var(--k-paper-muted);
}

.settings-nav button.active {
  background: var(--accent-soft);
  color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}

.coordination-summary {
  border-color: var(--k-ink-border);
  background: var(--k-paper);
  box-shadow: inset 3px 0 0 var(--accent);
}

.a4-stage {
  border-color: var(--k-ink-border);
  background: var(--surface-secondary);
}

/* The website theme stops at the edge of the approved A4 design. */
.print-page,
#printOnly .print-page {
  color-scheme: light;
  --accent: var(--ios-blue);
  --accent-hover: var(--ios-blue-hover);
  --accent-pressed: var(--ios-blue-pressed);
  --surface: var(--paper);
  --surface-raised: var(--paper);
  --text-primary: var(--paper-text);
  --text-secondary: var(--paper-secondary);
  --text-tertiary: var(--paper-muted);
  background: var(--paper) !important;
  color: var(--paper-text) !important;
}

dialog {
  border-color: var(--k-ink-border);
  background: var(--surface-raised);
}

@media (max-width: 760px) {
  .sidebar {
    border-color: var(--k-ink-border);
    background: var(--surface-raised);
  }

  .app-header {
    padding-bottom: var(--space-4);
  }

  .schedule-toolbar {
    border-color: var(--k-ink-border);
    background: var(--surface-raised);
  }

  .schedule-card {
    box-shadow: 0 1px 2px var(--separator);
  }

  .community-post.selected {
    box-shadow: none;
  }
}