/* ==========================================================================
   Overlays · dialog, drawer, toast, popover, tooltip, context menu
   ========================================================================== */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: 32px 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-3);
}
.overlay.is-open {
  opacity: 1;
  visibility: visible;
  transition: opacity var(--dur-3) var(--ease-out), visibility 0s;
}

.overlay__scrim {
  position: absolute;
  inset: 0;
  background: rgba(4, 26, 42, .38);
  backdrop-filter: blur(6px) saturate(120%);
  -webkit-backdrop-filter: blur(6px) saturate(120%);
  opacity: 0;
  transition: opacity var(--dur-3) var(--ease-out), backdrop-filter var(--dur-3) var(--ease-out);
}
.overlay.is-open .overlay__scrim { opacity: 1; backdrop-filter: blur(9px) saturate(125%); }
:root[data-theme="dark"] .overlay__scrim { background: rgba(1, 12, 22, .62); }

/* ---- dialog ----------------------------------------------------------- */
.dialog {
  position: relative;
  width: min(560px, 100%);
  max-height: min(86vh, 780px);
  display: flex;
  flex-direction: column;
  border-radius: var(--r-xl);
  background: var(--glass-2);
  border: 1px solid var(--glass-line);
  box-shadow: var(--shadow-3), var(--inset-top);
  backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  -webkit-backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  opacity: 0;
  transform: translateY(18px) scale(.955);
  transition:
    opacity var(--dur-2) var(--ease-out),
    transform var(--dur-4) var(--ease-spring);
  overflow: hidden;
}
.overlay.is-open .dialog { opacity: 1; transform: none; }
.overlay.is-closing .dialog { opacity: 0; transform: translateY(10px) scale(.97); transition-duration: var(--dur-2); }

.dialog--lg { width: min(760px, 100%); }
.dialog--xl { width: min(940px, 100%); }
.dialog--sm { width: min(430px, 100%); }

.dialog__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 18px 14px;
  border-bottom: 1px solid var(--hairline);
  flex: none;
}
.dialog__head h2 {
  font-size: var(--fs-15);
  font-weight: 600;
  letter-spacing: .01em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.dialog__head h2 svg { width: 16px; height: 16px; color: var(--sky-600); }
.dialog__head .sub { font-size: var(--fs-11); color: var(--ink-faint); margin-top: 2px; font-weight: 400; }
.dialog__close { margin-left: auto; }

.dialog__body {
  padding: 18px;
  overflow-y: auto;
  min-height: 0;
  flex: 1 1 auto;
}
.dialog__foot {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 13px 18px;
  border-top: 1px solid var(--hairline);
  flex: none;
}
.dialog__foot .grow { flex: 1 1 auto; }
.dialog__foot .btn { min-width: 76px; }

/* content stagger inside an opening dialog */
.overlay.is-open .dialog__body > * { animation: dialog-item var(--dur-3) var(--ease-out) both; }
.overlay.is-open .dialog__body > *:nth-child(2) { animation-delay: 40ms; }
.overlay.is-open .dialog__body > *:nth-child(3) { animation-delay: 80ms; }
.overlay.is-open .dialog__body > *:nth-child(4) { animation-delay: 120ms; }
.overlay.is-open .dialog__body > *:nth-child(5) { animation-delay: 150ms; }

/* ---- drawer ----------------------------------------------------------- */
.overlay--drawer { place-items: stretch end; padding: 0; }
.drawer {
  position: relative;
  width: min(440px, 92vw);
  height: 100%;
  display: flex;
  flex-direction: column;
  background: var(--glass-2);
  border-left: 1px solid var(--glass-line);
  box-shadow: -30px 0 80px -50px rgba(3, 30, 50, .9);
  backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  -webkit-backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  transform: translateX(102%);
  transition: transform var(--dur-4) var(--ease-out);
}
.overlay.is-open .drawer { transform: none; }
.overlay.is-closing .drawer { transform: translateX(102%); transition-duration: var(--dur-3); }
.drawer__head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px 16px 14px 20px;
  border-bottom: 1px solid var(--hairline);
  flex: none;
}
.drawer__head h2 { font-size: var(--fs-15); font-weight: 600; }
.drawer__body { padding: 18px 20px; overflow-y: auto; flex: 1 1 auto; min-height: 0; }
.drawer__foot { padding: 14px 20px; border-top: 1px solid var(--hairline); display: flex; gap: 8px; flex: none; }

/* ---- toast ------------------------------------------------------------ */
.toasts {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 120;
  display: flex;
  flex-direction: column;
  gap: 9px;
  align-items: flex-end;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 9px;
  min-width: 240px;
  max-width: 380px;
  padding: 10px 13px;
  border-radius: var(--r-md);
  font-size: var(--fs-12);
  color: var(--ink);
  background: var(--glass-2);
  border: 1px solid var(--glass-line);
  box-shadow: var(--shadow-2), var(--inset-top);
  backdrop-filter: blur(var(--blur-2)) saturate(var(--sat));
  -webkit-backdrop-filter: blur(var(--blur-2)) saturate(var(--sat));
  animation: toast-in var(--dur-4) var(--ease-spring) both;
  overflow: hidden;
}
:root[data-theme="dark"] .toast { background: rgba(18, 48, 72, .9); }
.toast.is-out { animation: toast-out var(--dur-2) var(--ease-out) both; }
.toast__icon {
  flex: none;
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--sky-600);
}
.toast__icon svg { width: 12px; height: 12px; }
.toast--ok .toast__icon { background: var(--success-500); }
.toast--warn .toast__icon { background: var(--warn-500); }
.toast--err .toast__icon { background: var(--danger-500); }
.toast__bar {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--sky-400), var(--sky-600));
  animation: toast-timer 3.4s linear forwards;
}
.toast--ok .toast__bar { background: linear-gradient(90deg, #6adcae, var(--success-500)); }
.toast--err .toast__bar { background: linear-gradient(90deg, #ff9b8a, var(--danger-500)); }

/* ---- popover ---------------------------------------------------------- */
.popover {
  position: fixed;
  z-index: 130;
  min-width: 180px;
  padding: 6px;
  border-radius: var(--r-md);
  background: var(--glass-2);
  border: 1px solid var(--glass-line);
  box-shadow: var(--shadow-2), var(--inset-top);
  backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  -webkit-backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  animation: pop-in var(--dur-2) var(--ease-out) both;
  transform-origin: top right;
}
:root[data-theme="dark"] .popover { background: rgba(16, 44, 66, .95); }
.popover__title {
  padding: 6px 8px 4px;
  font-size: 10.5px;
  letter-spacing: .06em;
  color: var(--ink-faint);
}
.popover__item {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 30px;
  padding: 0 8px;
  border-radius: var(--r-xs);
  font-size: var(--fs-12);
  color: var(--ink-2);
  transition: background var(--dur-1) linear, color var(--dur-1) linear;
}
.popover__item:hover { background: rgba(26, 142, 205, .10); color: var(--sky-800); }
.popover__item svg { width: 13px; height: 13px; color: var(--ink-faint); }
.popover__item.is-danger { color: var(--danger-500); }
.popover__item.is-danger:hover { background: var(--danger-bg); }
.popover__sep { height: 1px; background: var(--hairline); margin: 5px 2px; }
.popover__check {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 28px;
  padding: 0 8px;
  border-radius: var(--r-xs);
  font-size: var(--fs-12);
  color: var(--ink-2);
}
.popover__check:hover { background: rgba(26, 142, 205, .08); }
.popover__check input { accent-color: var(--sky-600); }

/* ---- tooltip ---------------------------------------------------------- */
.tip {
  position: fixed;
  z-index: 140;
  max-width: 260px;
  padding: 6px 9px;
  border-radius: var(--r-xs);
  font-size: 11.5px;
  line-height: 1.5;
  color: #f2fbff;
  background: rgba(5, 32, 50, .94);
  box-shadow: 0 10px 28px -14px rgba(0, 20, 36, .9);
  pointer-events: none;
  animation: pop-in var(--dur-1) var(--ease-out) both;
  transform-origin: top center;
}
.tip b { color: #8ddde1; font-weight: 600; }

/* ---- context menu ----------------------------------------------------- */
.ctxmenu {
  position: fixed;
  z-index: 130;
  min-width: 168px;
  padding: 5px;
  border-radius: var(--r-md);
  background: var(--glass-2);
  border: 1px solid var(--glass-line);
  box-shadow: var(--shadow-2), var(--inset-top);
  backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  -webkit-backdrop-filter: blur(var(--blur-3)) saturate(var(--sat));
  animation: pop-in var(--dur-2) var(--ease-out) both;
}

/* ---- notice carousel (使用须知) --------------------------------------- */
.notice-overlay {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: grid;
  place-items: center;
  padding: 30px;
  background: rgba(3, 22, 36, .55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-3) var(--ease-out), visibility 0s linear var(--dur-3);
}
.notice-overlay.is-open { opacity: 1; visibility: visible; transition: opacity var(--dur-3) var(--ease-out), visibility 0s; }

.notice-card {
  position: relative;
  width: min(720px, 100%);
  border-radius: var(--r-xl);
  overflow: hidden;
  background: linear-gradient(165deg, rgba(18, 35, 45, .97), rgba(7, 15, 21, .98));
  border: 1px solid rgba(150, 200, 225, .18);
  box-shadow: var(--shadow-3);
  transform: translateY(20px) scale(.96);
  transition: transform var(--dur-4) var(--ease-spring);
}
.notice-overlay.is-open .notice-card { transform: none; }

.notice-card__glow {
  position: absolute;
  inset: -40% -20% auto -20%;
  height: 70%;
  background: radial-gradient(closest-side, rgba(31, 168, 178, .40), transparent);
  pointer-events: none;
}
.notice-slide {
  position: relative;
  padding: 34px 210px 28px 40px;
  color: #eaf6ff;
  min-height: 268px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  animation: slide-in var(--dur-3) var(--ease-out) both;
}
.notice-slide__glyph {
  position: absolute;
  right: 46px;
  top: 50%;
  transform: translateY(-50%);
  width: 116px;
  height: 116px;
  color: rgba(150, 215, 250, .26);
  pointer-events: none;
}
.notice-slide__glyph svg { width: 100%; height: 100%; stroke-width: 1.1; }
.notice-slide__idx {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: .18em;
  color: rgba(160, 215, 245, .8);
  margin-bottom: 10px;
}
.notice-slide__title {
  font-size: 27px;
  font-weight: 600;
  letter-spacing: .01em;
  line-height: 1.4;
  color: #fff;
  max-width: 560px;
}
.notice-slide__title mark {
  background: none;
  color: #8ddde1;
}
.notice-slide__desc {
  margin-top: 13px;
  font-size: 13px;
  line-height: 1.8;
  color: rgba(226, 244, 255, .78);
  max-width: 520px;
}
.notice-slide__rule {
  width: 44px;
  height: 2px;
  background: linear-gradient(90deg, #8ddde1, transparent);
  margin: 16px 0 0;
}
.notice-card__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px 14px;
  border-top: 1px solid rgba(160, 220, 255, .14);
}
.notice-dots { display: flex; gap: 5px; margin: 0 auto; }
.notice-dot {
  width: 16px;
  height: 3px;
  border-radius: 2px;
  background: rgba(255, 255, 255, .26);
  transition: background var(--dur-2) linear, width var(--dur-3) var(--ease-out);
}
.notice-dot.is-active { background: #8ddde1; width: 26px; }
.notice-nav {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: #dff2ff;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .2);
  transition: background var(--dur-2) linear, transform var(--dur-2) var(--ease-out);
}
.notice-nav:hover { background: rgba(255, 255, 255, .24); transform: scale(1.08); }
.notice-nav svg { width: 13px; height: 13px; }
.notice-close {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  color: rgba(255, 255, 255, .8);
  background: rgba(255, 255, 255, .12);
  transition: background var(--dur-2) linear, transform var(--dur-2);
}
.notice-close:hover { background: rgba(255, 255, 255, .26); transform: rotate(90deg); }
.notice-close svg { width: 12px; height: 12px; }

/* ---- QR --------------------------------------------------------------- */
.qr {
  width: 168px;
  height: 168px;
  padding: 10px;
  border-radius: var(--r-md);
  background: #fff;
  box-shadow: 0 10px 30px -18px rgba(3, 30, 50, .7);
}
.qr svg { width: 100%; height: 100%; }