/* ============================================================================
   DoorPass — Components
   ----------------------------------------------------------------------------
   Reusable classes built ONLY from tokens.css custom properties. The only raw
   literals permitted are true one-offs a token can't express: 1px hairlines,
   0/100%/50% geometry, and physics constants inside @keyframes. No palette
   color, spacing step, radius, or duration is ever written as a literal here.

   Depends on: tokens.css (load it first).
   ========================================================================== */

/* ---- App-shell basics ---------------------------------------------------- */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  font: var(--text-body);
  color: var(--color-text-primary);
  background: var(--color-bg-0);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Suppress the mobile-webview tap flash everywhere; interactive elements
     supply their own deliberate :active feedback. */
  -webkit-tap-highlight-color: transparent;
}

/* Safe-area padding helper for edge-to-edge bars/sheets/CTAs. */
.safe-bottom { padding-bottom: max(var(--space-4), env(safe-area-inset-bottom)); }
.safe-top    { padding-top: max(var(--space-4), env(safe-area-inset-top)); }

/* Every interactive control clears the tap flash + gets a comfortable
   min hit-area (44px, Apple HIG) even when the visual glyph is smaller. */
button,
.btn,
.keypad__key,
.pill,
a.link {
  -webkit-tap-highlight-color: transparent;
}

/* Shared, consistent focus ring for keyboard users across all controls. */
:where(.btn, .keypad__key, .input, .card--interactive, a.link):focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---- Typographic helpers ------------------------------------------------- */

.text-display   { font: var(--text-display); }
.text-title     { font: var(--text-title); }
.text-heading   { font: var(--text-heading); }
.text-body      { font: var(--text-body); }
.text-label     { font: var(--text-label); }
.text-caption   { font: var(--text-caption); color: var(--color-text-tertiary); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary  { color: var(--color-text-tertiary); }
.text-accent    { color: var(--color-accent); }

a.link {
  color: var(--color-accent);
  text-decoration: none;
  border-radius: var(--radius-xs);
  transition: opacity var(--dur-fast) var(--ease-standard);
}
a.link:hover { opacity: 0.78; }
a.link:active { opacity: 0.6; }

/* ---- Buttons ------------------------------------------------------------- */
/* Geometry contract (design-system.md §8): filled/outline share a 52px height
   and 12px radius; ghost is 44px min with no border ever. Press motion is the
   asymmetric quick-down / spring-up from §7 (button-press). */

.btn {
  --_btn-h: 52px;
  appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--_btn-h);
  min-width: 120px;
  padding: 0 var(--space-6);
  border: 0;
  border-radius: var(--radius-md);
  font: var(--text-label);
  letter-spacing: 0.01em;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  background: transparent;
  color: var(--color-text-primary);
  transition:
    transform var(--dur-medium) var(--ease-spring-press),
    background-color var(--dur-fast) var(--ease-standard),
    border-color var(--dur-fast) var(--ease-standard),
    opacity var(--dur-fast) var(--ease-standard);
}
.btn:active { transform: scale(0.96); transition-duration: var(--dur-instant); }
.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.4;
  pointer-events: none;
}
.btn--block { display: flex; width: 100%; }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-accent-fg);
}
.btn--primary:hover { background: color-mix(in srgb, var(--color-accent) 88%, var(--color-text-primary)); }

.btn--secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong);
}
.btn--secondary:hover { background: var(--color-bg-2); }
.btn--secondary:active { background: var(--color-bg-2); }

.btn--ghost {
  --_btn-h: 44px;
  min-width: 0;
  padding: 0 var(--space-4);
  background: transparent;
  color: var(--color-accent);
}
.btn--ghost:hover { background: var(--tint-accent); }
.btn--ghost:active { background: var(--tint-accent); }

.btn--danger {
  background: var(--color-danger);
  color: var(--color-danger-fg);
}
.btn--danger:hover { background: color-mix(in srgb, var(--color-danger) 88%, var(--color-text-primary)); }

/* Loading state swaps the label for a spinner without changing size. */
.btn--loading { color: transparent !important; pointer-events: none; position: relative; }
.btn--loading::after {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border-radius: var(--radius-full);
  border: 2px solid currentColor;
  border-top-color: transparent;
  color: var(--color-accent-fg);
  animation: dp-spin 0.7s linear infinite;
}
@keyframes dp-spin { to { transform: rotate(360deg); } }

/* ---- Cards --------------------------------------------------------------- */

.card {
  background: var(--color-bg-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--elevation-1);
}
.card--interactive {
  cursor: pointer;
  transition:
    transform var(--dur-base) var(--ease-standard),
    border-color var(--dur-base) var(--ease-standard),
    box-shadow var(--dur-base) var(--ease-standard);
}
.card--interactive:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--elevation-2);
  transform: translateY(-1px);
}
.card--interactive:active { transform: translateY(0); }

/* Card-enter stagger (design-system.md §7 card-enter). Add .is-entering to a
   freshly-inserted card; JS sets --enter-i for the per-item delay. */
.card-enter {
  animation: dp-card-enter var(--dur-medium) var(--ease-standard-decel) both;
  animation-delay: calc(var(--enter-i, 0) * 35ms);
}
@keyframes dp-card-enter {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---- Pills / badges ------------------------------------------------------ */
/* The one place a flat tint background is allowed (never a blur). */

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  min-height: 24px;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font: var(--text-caption);
  font-weight: 500;
  white-space: nowrap;
  background: var(--tint-neutral);
  color: var(--color-text-secondary);
  border: 1px solid transparent;
}
.pill__dot {
  width: 6px; height: 6px;
  border-radius: var(--radius-full);
  background: currentColor;
  flex: none;
}
.pill--accent  { background: var(--tint-accent);  color: var(--color-accent); }
.pill--success { background: var(--tint-success); color: var(--color-success); }
.pill--warning { background: var(--tint-warning); color: var(--color-warning); }
.pill--danger  { background: var(--tint-danger);  color: var(--color-danger); }
.pill--neutral { background: var(--tint-neutral); color: var(--color-text-tertiary); }

/* ---- Inputs -------------------------------------------------------------- */

.input {
  width: 100%;
  min-height: 48px;
  padding: 0 var(--space-4);
  font: var(--text-body);
  color: var(--color-text-primary);
  background: var(--color-bg-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--dur-fast) var(--ease-standard);
}
.input::placeholder { color: var(--color-text-tertiary); }
.input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: inset 0 0 0 1px var(--color-accent);
}
.input:disabled { opacity: 0.4; cursor: not-allowed; }
.input--error { border-color: var(--color-danger); }
.input--error:focus { border-color: var(--color-danger); box-shadow: inset 0 0 0 1px var(--color-danger); }

.field { display: flex; flex-direction: column; gap: var(--space-2); }
.field__label { font: var(--text-label); color: var(--color-text-secondary); }
.field__help  { font: var(--text-caption); color: var(--color-text-tertiary); }
.field__help--error { color: var(--color-danger); }

/* ---- Numeric keypad ------------------------------------------------------ */
/* 3-col grid, ≥64×56px tiles, digit-tap motion from §7. */

.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2);
}
.keypad__key {
  appearance: none;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font: var(--text-title);
  color: var(--color-text-primary);
  background: var(--color-bg-1);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  user-select: none;
  transition:
    transform var(--dur-fast) var(--ease-standard),
    background-color var(--dur-fast) var(--ease-standard);
}
.keypad__key:hover { background: var(--color-bg-2); }
.keypad__key:active {
  transform: scale(0.94);
  background: var(--color-bg-2);
  transition-duration: var(--dur-instant);
}
.keypad__key--action { font: var(--text-label); color: var(--color-text-secondary); }
.keypad__key--accent { color: var(--color-accent); }

/* ---- Scrim + bottom sheet + modal ---------------------------------------- */

.scrim {
  position: fixed;
  inset: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--color-bg-0) 55%, transparent);
  display: none;
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-standard);
  overscroll-behavior: contain;
}
.scrim.is-open { display: flex; opacity: 1; }

/* Bottom sheet: pinned to viewport bottom, top corners only, slides up. */
.scrim--sheet { align-items: flex-end; justify-content: center; }
.sheet {
  width: 100%;
  max-width: 480px;
  background: var(--color-bg-3);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  padding: var(--space-5) var(--space-5) 0;
  box-shadow: var(--elevation-3);
  transform: translateY(100%);
  transition: transform var(--dur-slow) var(--ease-emphasized-decel);
  overscroll-behavior: contain;
}
.scrim.is-open .sheet { transform: translateY(0); }
.sheet__handle {
  width: 36px; height: 4px;
  border-radius: var(--radius-full);
  background: var(--color-border-strong);
  margin: 0 auto var(--space-4);
}

/* Modal: centered dialog, all corners rounded, scale/fade in. */
.scrim--modal { align-items: center; justify-content: center; padding: var(--space-6); }
.modal {
  width: 100%;
  max-width: 400px;
  background: var(--color-bg-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--elevation-3);
  transform: scale(0.96);
  opacity: 0;
  transition:
    transform var(--dur-slow) var(--ease-emphasized-decel),
    opacity var(--dur-medium) var(--ease-standard);
  overscroll-behavior: contain;
}
.scrim.is-open .modal { transform: scale(1); opacity: 1; }

/* Wrong-PIN shake — single-axis translateX only, dropped under reduced-motion
   via tokens (the fade stays, the shake collapses). */
.modal.is-shaking,
.sheet.is-shaking { animation: dp-shake var(--dur-slow) var(--ease-standard); }
@keyframes dp-shake {
  10%, 90% { transform: translateX(-1px); }
  20%, 80% { transform: translateX(3px); }
  30%, 50%, 70% { transform: translateX(-6px); }
  40%, 60% { transform: translateX(6px); }
}
@media (prefers-reduced-motion: reduce) {
  .modal.is-shaking, .sheet.is-shaking { animation: none; }
}

/* ---- Live status dot (SSE connection / door offline) --------------------- */

.status-dot {
  width: 8px; height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-text-tertiary);
  display: inline-block;
  flex: none;
  transition: background-color var(--dur-base) var(--ease-standard);
}
.status-dot--live { background: var(--color-success); }
.status-dot--error { background: var(--color-danger); }