/* 自動補樣式：js/lock.js（_build/style.py） */
/* ==========================================================================
   App 鎖與表單（c-lock、c-form）
   DOM：.c-lock > (.c-lock__head > hero / brand / title / dots / msg) + (.c-lock__body > pad / forgot)
   ========================================================================== */

/* ---------- 鎖定面板（sm：全螢幕） ---------- */
.c-lock {
  --key: max(56px, min(72px, 10.5dvh));
  --key-gap: clamp(10px, 1.8dvh, 16px);
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3dvh, 28px);
  padding: calc(var(--safe-top) + 16px) calc(var(--safe-right) + 24px) calc(var(--safe-bottom) + 16px) calc(var(--safe-left) + 24px);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  overflow-y: auto;
  overscroll-behavior: contain;
  animation: c-lock-in var(--dur-2) var(--ease) backwards;
}

.c-lock:focus,
.c-lock:focus-visible {
  outline: none;
}

@keyframes c-lock-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
}

.c-lock__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  width: 100%;
  max-width: 320px;
  text-align: center;
}

.c-lock__hero {
  display: grid;
  place-items: center;
  width: clamp(72px, 14dvh, 112px);
  height: clamp(72px, 14dvh, 112px);
  margin-bottom: var(--sp-1);
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary);
  overflow: hidden;
}

.c-lock__hero > img,
.c-lock__hero > svg {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.c-lock__brand {
  margin: 0;
  font-size: var(--fs-caption);
  line-height: var(--lh-caption);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--primary);
}

.c-lock__title {
  margin: 0;
  font-size: var(--fs-title2);
  line-height: var(--lh-title2);
  font-weight: var(--fw-title2);
  letter-spacing: var(--ls-title);
  color: var(--text);
}

/* ---------- PIN 點列 ---------- */
.c-lock__dots {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  min-height: 28px;
  margin-top: var(--sp-2);
}

.c-lock__dot {
  width: 14px;
  height: 14px;
  border: 2px solid var(--primary);
  border-radius: 50%;
  background: transparent;
  transition: background-color var(--dur-1) var(--ease), transform var(--dur-2) var(--ease-spring);
}

.c-lock__dot.is-done {
  background: var(--primary);
  transform: scale(1.12);
}

.c-lock__dots.is-shake {
  animation: c-lock-shake 0.45s var(--ease);
}

@keyframes c-lock-shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-10px); }
  40% { transform: translateX(9px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(4px); }
}

.c-lock__msg {
  min-height: calc(var(--fs-callout) * 1.47 * 1);
  margin: 0;
  font-size: var(--fs-callout);
  line-height: var(--lh-callout);
  color: var(--text-2);
  overflow-wrap: anywhere;
}

/* ---------- 鍵盤 ---------- */
.c-lock__body {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  width: 100%;
}

.c-lock__pad {
  display: grid;
  grid-template-columns: repeat(3, var(--key));
  grid-auto-rows: var(--key);
  justify-content: center;
  gap: var(--key-gap);
}

.c-lock__key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: var(--key);
  height: var(--key);
  min-width: var(--key);
  min-height: var(--key);
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface-2);
  color: var(--text);
  font-size: var(--fs-title1);
  line-height: 1;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  transition: background-color var(--dur-1) var(--ease), transform var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease), opacity var(--dur-1) var(--ease);
}

.c-lock__key:active:not(:disabled) {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  transform: scale(0.94);
}

.c-lock__key:focus-visible {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

.c-lock__key:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* 刪除鍵：無底、文字小 */
.c-lock__key--aux {
  border-color: transparent;
  background: transparent;
  font-size: var(--fs-callout);
  font-weight: 600;
  color: var(--text-2);
}

.c-lock__key--aux:active:not(:disabled) {
  background: var(--surface-3);
  border-color: transparent;
  color: var(--text);
}

/* 佔位用（空白鍵位） */
.c-lock__key--empty {
  visibility: hidden;
  pointer-events: none;
  border: 0;
  background: none;
}

.c-lock__forgot {
  min-height: var(--tap);
  font-size: var(--fs-callout);
  color: var(--text-2);
}

/* ---------- 表單（設定 / 變更 / 關閉 PIN） ---------- */
.c-form {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  min-width: 0;
}

.c-form > .c-field + .c-field {
  margin-top: 0;
}

.c-form > .c-field__error {
  margin: 0;
}

.c-form > .c-field__error:empty {
  display: none;
}

.c-form > .c-field__hint {
  margin: 0;
  line-height: var(--lh-footnote);
}

.c-form .c-field__input[inputmode='numeric'] {
  letter-spacing: 0.4em;
  font-variant-numeric: tabular-nums;
}

.c-form .c-field__input[inputmode='numeric']::placeholder {
  letter-spacing: normal;
}

/* ---------- 滑鼠 hover ---------- */
@media (hover: hover) and (pointer: fine) {
  .c-lock__key:hover:not(:disabled):not(:active) {
    background: var(--surface-3);
    border-color: var(--text-3);
  }

  .c-lock__key--aux:hover:not(:disabled):not(:active) {
    background: var(--surface-2);
    border-color: transparent;
    color: var(--text);
  }

  .c-lock__forgot:hover {
    color: var(--text);
  }
}

/* ---------- 平板／桌面：置中面板 400px，背景 grad-hero ---------- */
@media (min-width: 600px) {
  .c-lock {
    inset: auto;
    top: 50%;
    left: 50%;
    width: 400px;
    max-width: calc(100vw - 32px);
    max-height: calc(100dvh - 32px);
    padding: var(--sp-8) var(--sp-6);
    transform: translate(-50%, -50%);
    border: 1px solid var(--border);
    border-radius: var(--r-sheet);
    background: var(--grad-hero);
    box-shadow: 0 0 0 100vmax var(--bg), var(--shadow-2);
    animation-name: c-lock-pop;
  }

  @keyframes c-lock-pop {
    from {
      opacity: 0;
      transform: translate(-50%, -50%) scale(0.96);
    }
  }
}

/* ---------- 手機橫式與矮螢幕：兩欄，左側品牌與 PIN 點，右側鍵盤，鍵寬 56px ---------- */
@media (orientation: landscape) and (max-height: 500px) {
  .c-lock {
    --key: 56px;
    --key-gap: 8px;
    inset: 0;
    top: 0;
    left: 0;
    width: auto;
    max-width: none;
    max-height: none;
    transform: none;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
    justify-items: center;
    gap: var(--sp-6);
    padding: calc(var(--safe-top) + 8px) calc(var(--safe-right) + 24px) calc(var(--safe-bottom) + 8px) calc(var(--safe-left) + 24px);
    border: 0;
    border-radius: 0;
    background: var(--bg);
    box-shadow: none;
    animation-name: c-lock-in;
  }

  .c-lock__hero {
    display: none;
  }

  .c-lock__body {
    gap: var(--sp-1);
  }

  .c-lock__forgot {
    min-height: 40px;
  }
}

/* ---------- 減少動態 ---------- */
@media (prefers-reduced-motion: reduce) {
  .c-lock,
  .c-lock__dots.is-shake {
    animation: none;
  }

  .c-lock__dot,
  .c-lock__key {
    transition-duration: 0.01ms;
  }

  .c-lock__dot.is-done,
  .c-lock__key:active:not(:disabled) {
    transform: none;
  }
}