/* ============================================================
   KEYBOARD NAVIGATION & SHORTCUTS HELP MODAL
   Uses design tokens from tokens.css for strict theme consistency.
   ============================================================ */

/* ── Modal Container & Backdrop ────────────────────────── */
.keyboard-help-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 100010; /* Must lay over the welcome overlay and sidebar */
  
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--s-5);
  box-sizing: border-box;
  
  opacity: 0;
  visibility: hidden;
  transition: 
    opacity var(--t-mid) var(--ease-out), 
    visibility var(--t-mid) var(--ease-out);
}

/* Translucent theme-matched overlays */
html[data-theme="dark"] .keyboard-help-modal {
  background-color: rgba(10, 10, 10, 0.95);
}
html[data-theme="paper"] .keyboard-help-modal {
  background-color: rgba(255, 242, 228, 0.95);
}
html[data-theme="pista"] .keyboard-help-modal {
  background-color: rgba(226, 236, 213, 0.95);
}
html[data-theme="amber"] .keyboard-help-modal {
  background-color: rgba(255, 193, 127, 0.95);
}

/* Visible state */
.keyboard-help-modal.is-visible {
  opacity: 1;
  visibility: visible;
}

/* ── Content Card ───────────────────────────────────────── */
.keyboard-help-card {
  background-color: var(--color-bg);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--s-6);
  max-width: 480px;
  width: 100%;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.05);
  
  transform: translateY(15px);
  transition: transform var(--t-mid) var(--ease-out);
  box-sizing: border-box;
}

html[data-theme="dark"] .keyboard-help-card {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.keyboard-help-modal.is-visible .keyboard-help-card {
  transform: translateY(0);
}

/* ── Header ─────────────────────────────────────────────── */
.keyboard-help-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--s-4);
  border-bottom: var(--border-width) solid var(--color-border);
  padding-bottom: var(--s-3);
}

.keyboard-help-title {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-text-1);
  margin: 0;
}

.keyboard-help-close {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--color-text-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  padding: var(--s-1) var(--s-2);
  border: var(--border-width) solid transparent;
  border-radius: var(--radius-sm);
  transition: 
    color var(--t-fast) var(--ease-out), 
    border-color var(--t-fast) var(--ease-out);
}

.keyboard-help-close:hover {
  color: var(--color-text-1);
  border-color: var(--color-border);
}

/* ── Shortcuts Grid List ────────────────────────────────── */
.keyboard-help-grid {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  max-height: 60vh;
  overflow-y: auto;
  scrollbar-width: thin;
  padding-right: var(--s-2);
}

.keyboard-help-section-title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-3);
  margin: var(--s-3) 0 var(--s-1) 0;
  border-bottom: var(--border-width) solid var(--color-border);
  padding-bottom: var(--s-1);
}

.keyboard-shortcut-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--s-1) 0;
  border-bottom: var(--border-width) solid rgba(0, 0, 0, 0.02);
}

html[data-theme="dark"] .keyboard-shortcut-row {
  border-bottom: var(--border-width) solid rgba(255, 255, 255, 0.02);
}

.keyboard-shortcut-desc {
  font-size: var(--text-sm);
  color: var(--color-text-2);
}

.keyboard-shortcut-keys {
  display: flex;
  align-items: center;
  gap: var(--s-1);
  font-size: var(--text-xs);
  color: var(--color-text-3);
}

/* Styled Keycap (Kbd element) */
.keyboard-key {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  background-color: var(--color-code-bg);
  border: var(--border-width) solid var(--color-border);
  border-bottom: 2px solid var(--color-border);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--color-text-1);
  display: inline-block;
  min-width: 12px;
  text-align: center;
  box-shadow: 0 1px 1px rgba(0,0,0,0.02);
}