/* トップ (金庫) の画面 */
:root {
  --s: min(540px, 42vw);
  --door-t: 22px;
}
@media (max-width: 920px) { :root { --s: min(460px, 92vw); } }

/* --- Stage -------------------------------------------------------------- */
.stage {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px 64px;
  max-width: 1200px;
  min-height: calc(100vh - 90px);
  margin: 0 auto;
  padding: 0 28px 40px;
}
@media (max-width: 920px) {
  .stage { grid-template-columns: 1fr; justify-items: center; padding: 8px 18px 40px; }
  .vault-wrap { order: -1; }
  .panes { width: 100%; }
}

/* --- 左の文章 (はじめ / 預けた後) ----------------------------------------- */
.panes { position: relative; max-width: 520px; transition: opacity .5s, transform .6s var(--ease); }
/* 扉を大きく開いている間は、扉がこの場所に来るので文章を下げる */
body.is-leaving .panes { opacity: 0; transform: translateX(-30px); pointer-events: none; }

/* 扉を大きく開いている間は、左の文章を消して金庫を中央に大きく出す */
body.layout-wide { --s: min(720px, 58vw, calc(100vh - 190px)); }
@media (max-width: 920px) { body.layout-wide { --s: min(600px, 94vw); } }
body.layout-wide .panes { display: none; }
body.layout-wide .stage { grid-template-columns: 1fr; justify-items: center; align-items: center; padding-top: 0; }
@media (min-width: 921px) {
  /* 扉は左へ開くので、その分だけ金庫を右へずらして扉と金庫の組を中央に置く */
  body.layout-wide .vault { margin-left: calc(var(--s) * 0.67); }
}
.pane { display: none; }
.pane.is-active { display: block; }
.pane.is-active > * { animation: rise 0.7s var(--ease) both; }
.pane > *:nth-child(2) { animation-delay: 0.06s; }
.pane > *:nth-child(3) { animation-delay: 0.12s; }
.pane > *:nth-child(4) { animation-delay: 0.18s; }
.pane > *:nth-child(5) { animation-delay: 0.24s; }
.pane > *:nth-child(6) { animation-delay: 0.3s; }
@keyframes rise { from { opacity: 0; transform: translateY(14px); filter: blur(4px); } }

.headline { margin: 0 0 20px; font-family: var(--display); font-size: clamp(34px, 4.4vw, 56px); font-weight: 700; line-height: 1.12; letter-spacing: -0.01em; }
.headline span { color: var(--brass-ink); }
.headline .nw { color: inherit; white-space: nowrap; }
.lead { margin: 0 0 32px; color: var(--muted); font-size: 15px; }

.ways { display: grid; gap: 10px; margin: 0 0 28px; }
.way {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 16px 18px;
  text-align: left;
  background: var(--panel);
  border: 1px solid var(--line-2);
  border-radius: 12px;
  cursor: pointer;
  overflow: hidden;
  transition: border-color .3s, transform .3s var(--spring);
}
.way::before { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 20%, color-mix(in srgb, var(--brass) 16%, transparent) 50%, transparent 80%); transform: translateX(-100%); transition: transform .7s var(--ease); }
.way:hover { border-color: var(--brass); transform: translateX(4px); }
.way:hover::before { transform: translateX(100%); }
.way-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 10px; background: var(--steel); color: var(--brass-ink); }
.way-icon svg { width: 24px; height: 24px; }
.way strong { display: block; font-size: 17px; }
.way small { color: var(--muted); font-size: 13px; }
.way-arrow { font-family: var(--mono); color: var(--muted); transition: transform .3s var(--spring), color .3s; }
.way:hover .way-arrow { transform: translateX(6px); color: var(--brass-ink); }

.specs { display: flex; flex-wrap: wrap; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.specs span { padding: 6px 14px; border: 1px solid var(--line); }
.specs span + span { margin-left: -1px; }
.specs b { color: var(--text); margin-right: 6px; }

.stamp { display: inline-block; margin: 0 0 18px; padding: 4px 14px; font-family: var(--display); font-size: 22px; font-weight: 700; letter-spacing: 0.2em; color: var(--ok); border: 2px solid var(--ok); border-radius: 6px; transform: rotate(-4deg); animation: stamp .6s .4s var(--spring) both !important; }
@keyframes stamp { from { opacity: 0; transform: scale(2.4) rotate(-12deg); } }
.pane-title { margin: 0 0 12px; font-family: var(--display); font-size: 28px; }
.share-note { margin: 0 0 14px; color: var(--muted); }
.clock-sub { margin: 14px 0 0; font-family: var(--mono); font-size: 12px; color: var(--muted); }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }

/* キーワードはパタパタ (フラップ) 表示。表示部は液晶なので両モード共通で暗い */
.flap { display: flex; flex-wrap: wrap; gap: 3px; }
.flap span {
  position: relative;
  display: grid;
  place-items: center;
  width: 22px;
  height: 32px;
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 700;
  color: #ffb547;
  background: linear-gradient(#1a1a1d 50%, #141416 50%);
  border-radius: 4px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}
.flap span::after { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: rgba(0, 0, 0, 0.7); }
.flap.is-big span { width: clamp(22px, 2.6vw, 34px); height: clamp(34px, 3.8vw, 50px); font-size: clamp(16px, 2vw, 24px); }

/* --- Vault -------------------------------------------------------------- */
.vault-wrap { display: grid; justify-items: center; gap: 16px; }
@media (min-width: 921px) { body:not(.layout-wide) .vault-wrap { position: sticky; top: max(20px, calc(50vh - 320px)); } body:not(.layout-wide) .stage { align-items: start; padding-top: max(20px, calc(50vh - 400px)); } }

.vault { position: relative; width: var(--s); aspect-ratio: 1; perspective: 2600px; perspective-origin: 20% 50%; user-select: none; border-radius: 50%; transition: margin .9s var(--ease); }
.vault-glow { position: absolute; inset: -12%; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--brass) 40%, transparent), transparent 62%); opacity: 0; transition: opacity .8s, transform .4s var(--spring); pointer-events: none; }
.vault.is-unlocked .vault-glow { opacity: 0.7; }
.vault.is-target .vault-glow { opacity: 1; transform: scale(1.08); }

.vault-rim { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.rim-base { fill: url(#rim-metal); stroke: var(--rim-stroke); stroke-width: 2; }
.rim-stop-1 { stop-color: var(--rim-1); }
.rim-stop-2 { stop-color: var(--rim-2); }
#dial { transform-box: view-box; transform-origin: 50% 50%; transition: transform .7s var(--spring); }
#dial line { stroke: var(--tick); stroke-width: 1.5; }
#dial line.major { stroke: var(--brass); stroke-width: 2.5; }
.rim-track { fill: none; stroke: var(--line); stroke-width: 4; }
.rim-progress { fill: none; stroke: var(--brass); stroke-width: 4; stroke-linecap: round; stroke-dasharray: 100 100; stroke-dashoffset: 100; filter: drop-shadow(0 0 6px var(--brass)); transition: stroke-dashoffset .4s linear, stroke .3s; }
.rim-progress.is-danger { stroke: var(--err); filter: drop-shadow(0 0 6px var(--err)); }
.rim-marker { fill: var(--brass); filter: drop-shadow(0 0 6px var(--brass)); }

/* 金庫の中 (両モードとも暗い)。送るときはファイルの受け口、受け取るときはファイルの置き場 */
.vault-interior {
  position: absolute;
  inset: 11%;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 35%, rgba(255, 181, 71, 0.32), transparent 60%), repeating-radial-gradient(circle, #141210 0 6px, #0d0c0a 6px 12px);
  box-shadow: inset 0 0 60px #000, inset 0 0 0 6px #050505;
  overflow: hidden;
  transition: box-shadow .3s;
}
.vault.is-target .vault-interior { box-shadow: inset 0 0 60px #000, inset 0 0 0 6px #050505, inset 0 0 0 9px #ffb547, inset 0 0 80px rgba(255, 181, 71, 0.5); }

.bay { position: absolute; inset: 15% 14% 13%; display: none; flex-direction: column; gap: 8px; color: #f2ede3; }
body[data-mode="send"] .bay-send, body[data-mode="folder"] .bay-folder { display: flex; }
.bay-title { flex: none; margin: 0; text-align: center; font-family: var(--mono); font-size: 10px; letter-spacing: 0.24em; color: #b9ab8f; }
.bay-list {
  flex: 1 1 auto;
  display: grid;
  align-content: start;
  gap: 6px;
  margin: 0;
  padding: 2px 4px 10px;
  list-style: none;
  overflow-y: auto;
  scrollbar-width: thin;
  -webkit-mask: linear-gradient(#000 85%, transparent);
  mask: linear-gradient(#000 85%, transparent);
}
.bay-list:empty { display: none; }

/* 金庫の中の書類 */
.slip {
  position: relative;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  padding: 7px 8px 7px 9px;
  color: #1d1b17;
  background: linear-gradient(160deg, #fff7e8, #ead8b4);
  border-radius: 8px;
  box-shadow: 0 8px 20px -8px rgba(0, 0, 0, 0.8);
  overflow: hidden;
}
.slip.is-in { animation: slip-drop .55s var(--spring) both; }
@keyframes slip-drop { from { opacity: 0; transform: translateY(-40px) scale(1.15) rotate(-4deg); } }
.slip.is-rise { animation: slip-rise .8s var(--ease) both; }
@keyframes slip-rise { from { opacity: 0; transform: translateY(26px) scale(0.35); filter: blur(6px); } }
.slip.is-sink { animation: slip-sink .6s var(--ease) forwards; }
@keyframes slip-sink { to { opacity: 0; transform: translateY(16px) scale(0.25); filter: blur(5px); } }
.ext { display: grid; place-items: center; height: 30px; font-family: var(--mono); font-size: 8px; font-weight: 700; color: #1a1206; background: #ffb547; border-radius: 5px; text-transform: uppercase; }
.slip-name { display: block; overflow: hidden; font-size: 13px; font-weight: 600; white-space: nowrap; text-overflow: ellipsis; }
.slip-size { display: block; font-family: var(--mono); font-size: 10px; color: #7a6f5c; }
.slip-fill { position: absolute; left: 0; bottom: 0; height: 3px; width: 0; background: #e08a14; }
.slip-btn { min-height: 28px; padding: 0 10px; font-size: 12px; font-weight: 700; color: #3b2a0c; background: rgba(0, 0, 0, 0.06); border: 1px solid rgba(0, 0, 0, 0.15); border-radius: 7px; cursor: pointer; position: relative; overflow: hidden; }
.slip-btn:hover { background: rgba(0, 0, 0, 0.1); }
.slip-btn i { position: absolute; left: 0; top: 0; bottom: 0; width: 0; background: rgba(224, 138, 20, 0.35); }
.slip-btn span { position: relative; }
.slip-btn.is-done { color: #0f7a4a; border-color: rgba(15, 122, 74, 0.4); }

/* ファイルの受け口 */
.bay-drop {
  flex: 1 1 auto;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 6px;
  padding: 10px;
  text-align: center;
  font-size: 12px;
  color: #c9bba0;
}
/* 受け口の円。金庫の中と同じ中心の真円で、ゆっくり回る */
.bay-ring { position: absolute; inset: 6%; display: none; border-radius: 50%; pointer-events: none; transition: box-shadow .2s; }
.bay-ring svg { display: block; width: 100%; height: 100%; overflow: visible; }
/* 点線を流して回っているように見せる (要素は回さない。扉の 3D 表示と干渉させないため) */
.bay-ring circle { fill: none; stroke: rgba(255, 181, 71, 0.45); stroke-width: 0.35; stroke-dasharray: 1.2 1.6; animation: ring-flow 20s linear infinite; }
body[data-mode="send"] .bay-ring, body[data-mode="folder"] .bay-ring { display: block; }
@keyframes ring-flow { to { stroke-dashoffset: -100; } }
.vault.is-target .bay-ring { box-shadow: inset 0 0 40px rgba(255, 181, 71, 0.35); }
.vault.is-target .bay-ring circle { stroke: #ffb547; }
.bay-drop strong { font-family: var(--display); font-size: 17px; letter-spacing: 0.06em; color: #ffcf85; }
.bay-drop svg { width: 34px; height: 34px; color: #ffb547; animation: bob 1.8s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(5px); } }
.bay-folder .bay-drop, .bay-send.has-files .bay-drop { flex: none; grid-auto-flow: column; justify-content: center; gap: 12px; padding: 4px 0 0; }
.bay-send.has-files .bay-drop svg, .bay-send.has-files .bay-drop small { display: none; }
.bay-folder .bay-drop strong, .bay-send.has-files .bay-drop strong { font-size: 13px; }
.slip.is-error .slip-size { color: #c0392b; white-space: normal; }
.slip.is-error .slip-fill { background: #c0392b; }
.bay-pick { min-height: 30px; padding: 0 12px; font-size: 12px; font-weight: 700; color: #1a1206; background: #ffb547; border: 0; border-radius: 999px; cursor: pointer; }
.bay-empty { margin: auto; font-size: 13px; color: #9c917c; }

/* --- 扉: 厚みは円盤を重ねて作る ------------------------------------------------ */
.vault-door { position: absolute; inset: 11%; border-radius: 50%; transform-origin: 0% 50%; transform-style: preserve-3d; transition: transform 1.3s var(--ease); }
.vault.is-wide .vault-door { transform: rotateY(-172deg); }
/* 3D で裏返しても、ブラウザは見えていない面でクリックを受けることがある。開閉に合わせて片方だけを操作できるようにする */
.vault.is-wide .door-face, .vault.is-wide .door-face * { pointer-events: none; }
.vault:not(.is-wide) .door-back, .vault:not(.is-wide) .door-back * { pointer-events: none; }
.door-edge { position: absolute; inset: 0; border-radius: 50%; background: var(--door-edge); box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.06); }
.door-face, .door-back { position: absolute; inset: 0; border-radius: 50%; backface-visibility: hidden; -webkit-backface-visibility: hidden; overflow: hidden; }
.door-face {
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 35% 25%, var(--door-sheen), transparent 45%), repeating-conic-gradient(from 0deg, var(--door-a) 0deg 2deg, var(--door-b) 2deg 4deg), var(--door-base);
  box-shadow: inset 0 0 0 10px var(--door-ring-1), inset 0 0 0 12px var(--door-ring-2), inset 0 -20px 50px rgba(0, 0, 0, 0.3);
}
.door-back {
  transform: translateZ(calc(var(--door-t) * -1)) rotateY(180deg);
  background: radial-gradient(circle at 60% 25%, var(--door-sheen), transparent 50%), repeating-radial-gradient(circle, var(--back-a) 0 8px, var(--back-b) 8px 16px);
  box-shadow: inset 0 0 0 10px var(--door-ring-1), inset 0 0 0 12px var(--door-ring-2), inset 0 0 40px rgba(0, 0, 0, 0.35);
}
/* 扉の裏の鋲 */
.door-back::before { content: ""; position: absolute; inset: 5%; border-radius: 50%; background: radial-gradient(circle, var(--bolt-a) 0 2px, var(--bolt-b) 2.5px 3.5px, transparent 4px) 50% 0 / 8px 8px no-repeat, radial-gradient(circle, var(--bolt-a) 0 2px, var(--bolt-b) 2.5px 3.5px, transparent 4px) 50% 100% / 8px 8px no-repeat, radial-gradient(circle, var(--bolt-a) 0 2px, var(--bolt-b) 2.5px 3.5px, transparent 4px) 0 50% / 8px 8px no-repeat, radial-gradient(circle, var(--bolt-a) 0 2px, var(--bolt-b) 2.5px 3.5px, transparent 4px) 100% 50% / 8px 8px no-repeat; pointer-events: none; }
.wheel { position: absolute; width: 78%; opacity: 0.55; transition: transform 1.4s var(--ease); }
.wheel line { stroke: var(--wheel); stroke-width: 5; stroke-linecap: round; }
.wheel circle { fill: none; stroke: var(--wheel); stroke-width: 4; }
.vault.is-unlocked .wheel { transform: rotate(-200deg); }
.bolt { position: absolute; top: 50%; left: 50%; width: 15%; height: 5.4%; margin: -2.7% 0 0 -7.5%; border-radius: 3px; background: linear-gradient(var(--bolt-a), var(--bolt-b)); box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4); transform: rotate(var(--a)) translateX(calc(var(--s) * 0.36)) translateZ(-6px); transition: transform .45s var(--ease); }
.vault.is-unlocked .bolt { transform: rotate(var(--a)) translateX(calc(var(--s) * 0.27)) translateZ(-6px); }
.bolt-1 { --a: 0deg; }
.bolt-2 { --a: 90deg; }
.bolt-3 { --a: 180deg; }
.bolt-4 { --a: 270deg; }

@media (max-width: 920px) {
  /* 狭い画面は下に倒す (蝶番が下) */
  .vault-door { transform-origin: 50% 100%; }
  .vault.is-wide .vault-door { transform: rotateX(-172deg); }
  .door-back { transform: translateZ(calc(var(--door-t) * -1)) rotateX(180deg); }
  .vault { perspective-origin: 50% 90%; }
  .vault.is-wide { margin-bottom: calc(var(--s) * 0.68); }
}

.door-form { position: relative; z-index: 1; display: grid; justify-items: center; gap: 10px; width: 66%; }
.door-label { font-family: var(--mono); font-size: 10px; letter-spacing: 0.3em; color: var(--label); }
.door-input {
  width: 100%;
  padding: 14px 10px;
  font-family: var(--mono);
  font-size: clamp(16px, 2.2vw, 22px);
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.06em;
  color: #ffb547;
  text-shadow: 0 0 10px rgba(255, 181, 71, 0.7);
  caret-color: #ffb547;
  background: #0c0b08;
  border: 0;
  border-radius: 8px;
  box-shadow: inset 0 2px 10px #000, 0 0 0 1px var(--door-ring-1), 0 1px 0 1px rgba(255, 255, 255, 0.1);
}
.door-input::placeholder { color: #5a4f3a; text-shadow: none; }
.door-input:focus { outline: none; box-shadow: inset 0 2px 10px #000, 0 0 0 2px var(--brass), 0 0 24px color-mix(in srgb, var(--brass) 30%, transparent); }
.door-open { padding: 8px 22px; font-family: var(--display); font-weight: 700; letter-spacing: 0.12em; color: var(--on-brass); background: var(--brass); border: 0; border-radius: 999px; cursor: pointer; box-shadow: 0 6px 20px -6px var(--brass); transition: transform .2s var(--spring); }
.door-open:hover { transform: scale(1.06); }

/* 扉の裏の中身 */
.back-inner { position: absolute; inset: 13% 14%; display: none; flex-direction: column; justify-content: safe center; overflow-y: auto; scrollbar-width: thin; padding: 2px 4px; }
body[data-mode="send"] .back-send, body[data-mode="folder"] .back-folder { display: flex; }
.back-head { margin: 0 0 8px; text-align: center; font-family: var(--mono); font-size: 10px; letter-spacing: 0.24em; color: var(--brass-ink); }
.back-field { margin-bottom: 8px; }
.kw-line { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px; }
.kw-lcd {
  width: 100%;
  min-width: 0;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
  color: #ffb547;
  text-shadow: 0 0 10px rgba(255, 181, 71, 0.6);
  caret-color: #ffb547;
  background: #0c0b08;
  border: 0;
  border-radius: 8px;
  box-shadow: inset 0 2px 8px #000, 0 0 0 1px var(--door-ring-1);
}
.kw-lcd:focus { outline: none; box-shadow: inset 0 2px 8px #000, 0 0 0 2px var(--brass), 0 0 18px color-mix(in srgb, var(--brass) 30%, transparent); }
.kw-lcd.is-bad { box-shadow: inset 0 2px 8px #000, 0 0 0 2px var(--err); }
.kw-regen { display: grid; place-items: center; width: 40px; padding: 0; color: var(--brass-ink); background: var(--back-plate); border: 1px solid var(--line-2); border-radius: 8px; cursor: pointer; }
.kw-regen:hover { border-color: var(--brass); }
.kw-regen svg { width: 18px; height: 18px; transition: transform .5s var(--spring); }
.kw-regen:active svg { transform: rotate(180deg); }
.back-label { display: flex; justify-content: space-between; margin: 0 0 4px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.1em; color: var(--muted); }
.back-text {
  width: 100%;
  height: 54px;
  min-height: 54px;
  padding: 6px 10px;
  font: inherit;
  font-size: 16px;
  line-height: 1.4;
  color: var(--text);
  background: var(--back-plate);
  border: 1px solid var(--line-2);
  border-radius: 8px;
  resize: none;
}
.back-text:focus { outline: none; border-color: var(--brass); }
/* 保存期間: 1 本のスライダー。目盛りは 8 段階で、選んだ値を大きく出す */
.ttl-now { font-family: var(--display); font-size: 15px; font-weight: 700; letter-spacing: 0.02em; color: var(--brass-ink); }
.ttl-now small { margin-left: 4px; font-family: var(--jp); font-size: 10px; font-weight: 400; color: var(--muted); }
.ttl-range { --fill: 14%; display: block; width: 100%; height: 24px; margin: 0; background: none; cursor: pointer; -webkit-appearance: none; appearance: none; }
.ttl-range:focus { outline: none; }
.ttl-range::-webkit-slider-runnable-track { height: 6px; border-radius: 3px; background: linear-gradient(90deg, var(--brass) var(--fill), var(--line-2) var(--fill)); }
.ttl-range::-moz-range-track { height: 6px; border-radius: 3px; background: var(--line-2); }
.ttl-range::-moz-range-progress { height: 6px; border-radius: 3px; background: var(--brass); }
.ttl-range::-webkit-slider-thumb { width: 20px; height: 20px; margin-top: -7px; border-radius: 50%; background: radial-gradient(circle, var(--brass) 0 4px, transparent 4.5px), repeating-conic-gradient(var(--bolt-a) 0 15deg, var(--bolt-b) 15deg 30deg); box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5); -webkit-appearance: none; appearance: none; transition: transform .2s var(--spring); }
.ttl-range::-moz-range-thumb { width: 20px; height: 20px; border: 0; border-radius: 50%; background: radial-gradient(circle, var(--brass) 0 4px, transparent 4.5px), repeating-conic-gradient(var(--bolt-a) 0 15deg, var(--bolt-b) 15deg 30deg); box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5); }
.ttl-range:active::-webkit-slider-thumb, .ttl-range:focus-visible::-webkit-slider-thumb { transform: scale(1.2); }
.ttl-scale { display: flex; justify-content: space-between; padding: 0 7px; margin-top: -2px; }
.ttl-scale i { width: 1px; height: 5px; background: var(--muted); opacity: 0.6; }
.ttl-ends { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 9px; color: var(--muted); }
.checks { display: flex; flex-wrap: wrap; gap: 3px; margin: 5px 0 0; padding: 0; list-style: none; }
.checks li { padding: 0 6px; font-family: var(--mono); font-size: 9px; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; }
.checks.is-ok { display: none; }
.checks li[data-ok="true"] { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 40%, transparent); }
.back-clock { margin: 4px 0 0; text-align: center; font-family: var(--mono); font-size: clamp(38px, 4.4vw, 56px); font-weight: 700; line-height: 1; font-variant-numeric: tabular-nums; }
.back-clock.is-soon { color: var(--err); animation: blink 1s infinite; }
.back-sub { margin: 4px 0 12px; text-align: center; font-family: var(--mono); font-size: 11px; color: var(--muted); }
.memo { max-height: 9.5em; overflow-y: auto; padding: 10px 12px; font-family: var(--mono); font-size: 13px; line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere; background: var(--back-plate); border: 1px solid var(--line-2); border-radius: 8px; }
.memos { display: grid; gap: 8px; max-height: 11em; overflow-y: auto; }
.memo-item .memo { max-height: none; }
.memo-empty { margin: 0; text-align: center; font-size: 12px; color: var(--muted); }
.memo-add { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px; margin-top: 10px; }
.memo-add .back-text { height: 38px; min-height: 38px; }
.back-tools { display: flex; justify-content: center; gap: 6px; margin-top: 8px; }
.memo-tools { display: flex; justify-content: flex-end; margin-top: 4px; }

/* 狭い画面では扉が小さいので、扉の裏を詰める */
@media (max-width: 560px) {
  .back-inner { inset: 12% 12%; }
  .back-head { display: none; }
  .back-field { margin-bottom: 6px; }
  .back-label { font-size: 9px; }
  .back-text { height: 44px; min-height: 44px; }
  .kw-lcd { font-size: 16px; letter-spacing: 0.02em; padding: 6px 6px; }
  .kw-regen { width: 34px; }
  .bay { inset: 14% 11% 12%; }
  .back-clock { font-size: 34px; }
  .memo { max-height: 6.5em; font-size: 12px; }
}

/* 金庫の下の操作 */
.vault-actions { display: none; flex-wrap: wrap; justify-content: center; gap: 8px; }
body[data-mode="send"] .act-send, body[data-mode="folder"] .act-folder { display: flex; animation: rise .6s .9s var(--ease) both; }
.hold { position: relative; color: var(--err); background: color-mix(in srgb, var(--err) 6%, transparent); border-color: color-mix(in srgb, var(--err) 35%, transparent); overflow: hidden; user-select: none; -webkit-user-select: none; touch-action: none; }
.hold:hover { border-color: var(--err); }
.hold i { position: absolute; left: 0; top: 0; bottom: 0; width: calc(var(--p, 0) * 100%); background: color-mix(in srgb, var(--err) 30%, transparent); }
.hold span { position: relative; }

.vault.is-denied { animation: shake .5s; }
.vault.is-denied .rim-marker { fill: var(--err); }
@keyframes shake { 20%, 60% { transform: translateX(-10px) rotate(-1deg); } 40%, 80% { transform: translateX(10px) rotate(1deg); } }

.status { min-height: 1.6em; margin: 0; max-width: var(--s); font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em; color: var(--muted); text-align: center; }
.status::before { content: "> "; color: var(--brass-ink); }
.status::after { content: "_"; animation: blink 1s steps(1) infinite; }

.drag-veil { position: fixed; left: 50%; bottom: 28px; z-index: 50; padding: 10px 20px; font-family: var(--display); font-size: 16px; letter-spacing: 0.08em; color: var(--on-brass); background: var(--brass); border-radius: 999px; box-shadow: 0 10px 30px -10px var(--shadow); pointer-events: none; opacity: 0; transform: translate(-50%, 20px); transition: opacity .25s, transform .25s var(--spring); }
body.is-dragging .drag-veil { opacity: 1; transform: translate(-50%, 0); }

.paper { position: fixed; z-index: 60; display: grid; grid-template-columns: 30px minmax(0, 1fr); align-items: center; gap: 10px; padding: 7px 9px; font-size: 13px; color: #1d1b17; background: linear-gradient(160deg, #fff7e8, #ead8b4); border-radius: 8px; box-shadow: 0 18px 40px -10px rgba(0, 0, 0, 0.55); pointer-events: none; overflow: hidden; white-space: nowrap; }
.paper span:last-child { overflow: hidden; text-overflow: ellipsis; }

/* --- Protocol ----------------------------------------------------------- */
.protocol { max-width: 1200px; margin: 0 auto; padding: 80px 28px 40px; border-top: 1px solid var(--line); }
.protocol h2 { margin: 0 0 36px; font-family: var(--display); font-size: clamp(28px, 4vw, 44px); }
.protocol h2 small { display: block; font-family: var(--mono); font-size: 12px; letter-spacing: 0.2em; color: var(--brass-ink); font-weight: 400; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.step { padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; opacity: 0; transform: translateY(40px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.step.is-in { opacity: 1; transform: none; }
.step:nth-child(2) { transition-delay: .12s; }
.step:nth-child(3) { transition-delay: .24s; }
.step svg { width: 100%; height: 130px; margin-bottom: 14px; }
.step b { font-family: var(--mono); font-size: 12px; color: var(--brass-ink); }
.step h3 { margin: 4px 0 6px; font-size: 18px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }
.ill-stroke { fill: none; stroke: var(--tick); stroke-width: 2; }
.ill-brass { fill: none; stroke: var(--brass); stroke-width: 2.5; stroke-linecap: round; }
.ill-text { fill: var(--brass-ink); }
.ill-file { animation: ill-drop 2.8s var(--ease) infinite; }
@keyframes ill-drop { 0% { transform: translateY(-40px); opacity: 0; } 30% { opacity: 1; } 60%, 100% { transform: translateY(26px); opacity: 0; } }
.ill-wave { animation: ill-wave 2s ease-out infinite; transform-origin: 70px 65px; transform-box: view-box; }
.ill-wave:nth-of-type(2) { animation-delay: .4s; }
.ill-wave:nth-of-type(3) { animation-delay: .8s; }
@keyframes ill-wave { from { opacity: 1; transform: scale(0.6); } to { opacity: 0; transform: scale(1.3); } }
.ill-ring { stroke-dasharray: 220; animation: ill-ring 4s linear infinite; transform: rotate(-90deg); transform-origin: 140px 65px; transform-box: view-box; }
@keyframes ill-ring { from { stroke-dashoffset: 0; } to { stroke-dashoffset: 220; } }

.consent { display: none; margin: -6px 0 0; font-size: 12px; color: var(--muted); text-align: center; }
body[data-mode="send"] .consent { display: block; }
.notes { max-width: 760px; margin: 40px 0 0; padding: 0 0 0 1.2em; font-size: 13px; color: var(--muted); }
.notes li + li { margin-top: 6px; }