/* ─── 登入頁 · 全屏夾萬門 ─────────────────────────────────── */

:root {
  --vault-total-ms: 12000;
  --vault-anim-duration: 12s;
}

.login-page {
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  min-height: 100dvh;
  width: 100%;
  margin: 0;
  background: #050608;
}

.vault-scene {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.login-page.vault-opening .vault-scene {
  z-index: 9000;
}

/* 金庫室背景 */
.vault-room-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 120% 80% at 50% 40%, rgba(59, 130, 246, 0.14) 0%, transparent 52%),
    radial-gradient(ellipse 80% 50% at 50% 100%, rgba(0, 0, 0, 0.95) 0%, transparent 55%),
    linear-gradient(180deg, #121820 0%, #0a0d12 35%, #030405 100%);
}

.vault-room-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 64px,
      rgba(255, 255, 255, 0.02) 64px,
      rgba(255, 255, 255, 0.02) 65px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 64px,
      rgba(255, 255, 255, 0.016) 64px,
      rgba(255, 255, 255, 0.016) 65px
    );
}

.vault-room-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.85);
}

/* 門後光 */
.vault-glow {
  position: absolute;
  inset: 0;
  z-index: 1;
  opacity: 0;
  background:
    radial-gradient(ellipse 75% 65% at 50% 50%, rgba(147, 197, 253, 0.65) 0%, rgba(59, 130, 246, 0.25) 40%, transparent 72%),
    linear-gradient(180deg, rgba(248, 250, 252, 0.12) 0%, transparent 45%);
}

/* 全屏左右門扇 */
.vault-door {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 50.5%;
  z-index: 3;
  transform: translate3d(0, 0, 0);
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.4) 0%, transparent 15%),
    linear-gradient(180deg, #6b7280 0%, #4b5563 12%, #374151 45%, #1f2937 88%, #111827 100%);
  box-shadow: inset 0 0 100px rgba(0, 0, 0, 0.5);
  will-change: transform;
}

.vault-door--left {
  left: 0;
  border-right: 8px solid #0b0f14;
}

.vault-door--right {
  right: 0;
  border-left: 8px solid #0b0f14;
}

.vault-door--left::after,
.vault-door--right::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(0, 0, 0, 0.55) 30%, transparent 31%);
  background-size: 40px 40px;
  opacity: 0.55;
}

.vault-door--left::before {
  content: '';
  position: absolute;
  top: 6%;
  right: 0;
  bottom: 6%;
  width: 4px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.25) 25%, rgba(255, 255, 255, 0.25) 75%, transparent);
}

.vault-door--right::before {
  content: '';
  position: absolute;
  top: 6%;
  left: 0;
  bottom: 6%;
  width: 4px;
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.2) 25%, rgba(255, 255, 255, 0.2) 75%, transparent);
}

/* 中央轉輪 */
.vault-wheel {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 6;
  width: min(22vmin, 200px);
  height: min(22vmin, 200px);
  margin: calc(min(22vmin, 200px) / -2) 0 0 calc(min(22vmin, 200px) / -2);
  border-radius: 50%;
  transform: rotate(0deg);
  opacity: 1;
  background:
    radial-gradient(circle at 35% 35%, #d1d5db, #6b7280 38%, #374151 70%, #111827 100%);
  border: 10px solid #9ca3af;
  box-shadow:
    0 0 0 5px #1f2937,
    0 10px 50px rgba(0, 0, 0, 0.75),
    inset 0 4px 14px rgba(255, 255, 255, 0.25);
}

.vault-wheel::before {
  content: '';
  position: absolute;
  inset: 20%;
  border-radius: 50%;
  border: 6px solid #e5e7eb;
  box-shadow: inset 0 0 18px rgba(0, 0, 0, 0.55);
}

.vault-wheel::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border-radius: 50%;
  background: #f9fafb;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.5);
}

.vault-wheel-spoke {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 44%;
  margin: -22% 0 0 -3px;
  background: linear-gradient(180deg, #f3f4f6, #6b7280);
  border-radius: 3px;
  transform-origin: center center;
}

.vault-wheel-spoke:nth-child(1) { transform: rotate(0deg); }
.vault-wheel-spoke:nth-child(2) { transform: rotate(72deg); }
.vault-wheel-spoke:nth-child(3) { transform: rotate(144deg); }
.vault-wheel-spoke:nth-child(4) { transform: rotate(216deg); }
.vault-wheel-spoke:nth-child(5) { transform: rotate(288deg); }

.login-page.vault-opening .vault-wheel {
  z-index: 9100;
}

/* 登入表單 */
.login-page .login-shell {
  position: relative;
  z-index: 20;
  width: 100%;
  max-width: 400px;
  padding: 24px;
}

.login-page .login-shell.vault-hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.vault-status {
  position: fixed;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9200;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.15em;
  color: #f8fafc;
  background: rgba(15, 23, 42, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.15);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.vault-status.show {
  opacity: 1;
}

.vault-skip-btn {
  position: fixed;
  bottom: 4%;
  right: 4%;
  z-index: 9300;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 13px;
  color: rgba(248, 250, 252, 0.9);
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, background 0.2s ease;
}

.vault-skip-btn.show {
  opacity: 1;
  pointer-events: auto;
}

.vault-skip-btn:hover {
  background: rgba(30, 41, 59, 0.85);
}

.login-vault-pref {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.login-vault-pref input {
  accent-color: var(--accent, #3b82f6);
}

/* ─── 開門 keyframes（16s：转轮 5s → 微开 → 停 2s → 震動 → 慢速全开）─── */
@keyframes vault-wheel-turn {
  0%   { transform: rotate(0deg); opacity: 1; }
  31%  { transform: rotate(90deg); opacity: 1; }
  36%  { transform: rotate(90deg); opacity: 0; }
  100% { transform: rotate(90deg); opacity: 0; }
}

@keyframes vault-door-left-open {
  0%, 31% {
    transform: translate3d(0, 0, 0);
  }
  31% {
    animation-timing-function: ease-out;
  }
  34% {
    transform: translate3d(-5%, 0, 0);
    animation-timing-function: linear;
  }
  34%, 46% {
    transform: translate3d(-5%, 0, 0);
  }
  46.8% { transform: translate3d(-3.8%, 0, 0); }
  47.6% { transform: translate3d(-6.2%, 0, 0); }
  48.4% { transform: translate3d(-4.1%, 0, 0); }
  49.2% { transform: translate3d(-5.8%, 0, 0); }
  49.5% {
    transform: translate3d(-5%, 0, 0);
    animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
  }
  100% { transform: translate3d(-100%, 0, 0); }
}

@keyframes vault-door-right-open {
  0%, 31% {
    transform: translate3d(0, 0, 0);
  }
  31% {
    animation-timing-function: ease-out;
  }
  34% {
    transform: translate3d(5%, 0, 0);
    animation-timing-function: linear;
  }
  34%, 46% {
    transform: translate3d(5%, 0, 0);
  }
  46.8% { transform: translate3d(3.8%, 0, 0); }
  47.6% { transform: translate3d(6.2%, 0, 0); }
  48.4% { transform: translate3d(4.1%, 0, 0); }
  49.2% { transform: translate3d(5.8%, 0, 0); }
  49.5% {
    transform: translate3d(5%, 0, 0);
    animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
  }
  100% { transform: translate3d(100%, 0, 0); }
}

@keyframes vault-glow-rise {
  0%, 30%  { opacity: 0; }
  34%      { opacity: 0.12; }
  46%      { opacity: 0.22; }
  49.5%    { opacity: 0.35; }
  100%     { opacity: 1; }
}

.login-page.vault-opening .vault-wheel {
  animation: vault-wheel-turn var(--vault-anim-duration) linear forwards;
}

.login-page.vault-opening .vault-door--left {
  animation: vault-door-left-open var(--vault-anim-duration) linear forwards;
}

.login-page.vault-opening .vault-door--right {
  animation: vault-door-right-open var(--vault-anim-duration) linear forwards;
}

.login-page.vault-opening .vault-glow {
  animation: vault-glow-rise var(--vault-anim-duration) ease forwards;
}

/* 動畫結束／跳轉前保持全開，避免移除 class 時門扇彈回關閉 */
.login-page.vault-hold-open .vault-wheel,
.vault-entry-overlay.vault-hold-open .vault-wheel {
  animation: none !important;
  transform: rotate(90deg);
  opacity: 0;
}

.login-page.vault-hold-open .vault-door--left,
.vault-entry-overlay.vault-hold-open .vault-door--left {
  animation: none !important;
  transform: translate3d(-100%, 0, 0);
}

.login-page.vault-hold-open .vault-door--right,
.vault-entry-overlay.vault-hold-open .vault-door--right {
  animation: none !important;
  transform: translate3d(100%, 0, 0);
}

.login-page.vault-hold-open .vault-glow,
.vault-entry-overlay.vault-hold-open .vault-glow {
  animation: none !important;
  opacity: 1;
}

/* 主頁進場覆蓋 */
.vault-entry-overlay {
  position: fixed;
  inset: 0;
  z-index: 99999;
  pointer-events: all;
  opacity: 1;
}

.vault-entry-overlay.vault-entry-done {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s ease;
}

.vault-entry-overlay.vault-hold-open {
  opacity: 1;
  transition: opacity 0.55s ease;
}

.vault-entry-overlay.vault-hold-open.vault-fade-out {
  opacity: 0;
  pointer-events: none;
}

.vault-entry-overlay .vault-scene {
  position: absolute;
  inset: 0;
}

.vault-entry-overlay.vault-entry-animate .vault-wheel {
  animation: vault-wheel-turn var(--vault-anim-duration) linear forwards;
}

.vault-entry-overlay.vault-entry-animate .vault-door--left {
  animation: vault-door-left-open var(--vault-anim-duration) linear forwards;
}

.vault-entry-overlay.vault-entry-animate .vault-door--right {
  animation: vault-door-right-open var(--vault-anim-duration) linear forwards;
}

.vault-entry-overlay.vault-entry-animate .vault-glow {
  animation: vault-glow-rise var(--vault-anim-duration) ease forwards;
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --vault-total-ms: 400;
    --vault-anim-duration: 0.35s;
  }

  .login-page.vault-opening .vault-door--left,
  .vault-entry-overlay.vault-entry-animate .vault-door--left {
    animation: vault-door-left-open var(--vault-anim-duration) ease forwards;
  }

  .login-page.vault-opening .vault-door--right,
  .vault-entry-overlay.vault-entry-animate .vault-door--right {
    animation: vault-door-right-open var(--vault-anim-duration) ease forwards;
  }
}

[data-theme="light"] .vault-room-bg {
  background:
    radial-gradient(ellipse 120% 80% at 50% 40%, rgba(37, 99, 235, 0.16) 0%, transparent 52%),
    linear-gradient(180deg, #1e293b 0%, #0f172a 45%, #020617 100%);
}

[data-theme="light"] .login-page {
  background: #0f172a;
}