/* KJ法 SGD 付箋アプリ ― 共通スタイル
   紙の付箋と模造紙の質感をそのまま画面に持ってくる。 */

:root {
  --paper:      #E8E1D2;   /* 模造紙 */
  --paper-lite: #F7F4EC;
  --ink:        #24211D;   /* マーカー黒 */
  --ink-soft:   #5B554B;
  --line:       #C9C0AE;
  --shu:        #C0412B;   /* 朱（判子・見出し） */
  --shu-soft:   #F3E2DD;
  --ok:         #2E6F52;
  --warn:       #A9741B;
  --note-y:     #F6E27B;
  --note-p:     #F4B3C0;
  --note-b:     #A6D8EC;
  --note-g:     #BBDCA4;
  --radius:     3px;
  --shadow-1:   0 1px 0 rgba(36,33,29,.18), 0 6px 14px -8px rgba(36,33,29,.45);
  --shadow-2:   0 2px 0 rgba(36,33,29,.14), 0 14px 30px -14px rgba(36,33,29,.5);
  --font-body:  "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", Meiryo, system-ui, sans-serif;
  --font-disp:  "Hiragino Kaku Gothic StdN", "Hiragino Sans", "Noto Sans JP", "Yu Gothic", Meiryo, system-ui, sans-serif;
  --font-mono:  ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

/* 模造紙の下地（薄い方眼） */
body {
  background-color: var(--paper);
  background-image:
    linear-gradient(rgba(36,33,29,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(36,33,29,.05) 1px, transparent 1px);
  background-size: 26px 26px, 26px 26px;
  min-height: 100vh;
}

a { color: var(--shu); }

h1, h2, h3 { font-family: var(--font-disp); font-weight: 800; letter-spacing: .01em; margin: 0; line-height: 1.3; }
h1 { font-size: clamp(1.5rem, 4.4vw, 2.1rem); }
h2 { font-size: 1.12rem; }
h3 { font-size: .98rem; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 18px 16px 60px; }
.wrap-narrow { max-width: 760px; }

/* 見出しにつける朱のマーカー線 */
.rule {
  display: block; height: 4px; width: 54px; background: var(--shu);
  margin: 10px 0 0; border-radius: 2px;
}

.eyebrow {
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--ink-soft); font-weight: 700; font-family: var(--font-mono);
}

.muted { color: var(--ink-soft); font-size: .86rem; }
.mono { font-family: var(--font-mono); }

/* ---------- カード ---------- */
.card {
  background: var(--paper-lite);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
  padding: 18px 18px 16px;
  margin-bottom: 16px;
}
.card > h2 { display: flex; align-items: center; gap: 10px; }
.card > h2::before {
  content: ""; width: 6px; height: 20px; background: var(--ink); border-radius: 1px; flex: none;
}

/* ---------- ヘッダー ---------- */
.topbar {
  background: var(--paper-lite);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(36,33,29,.06);
}
.topbar-in { max-width: 1180px; margin: 0 auto; padding: 12px 16px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.brand { font-family: var(--font-disp); font-weight: 800; font-size: 1.02rem; letter-spacing: .04em; margin: 0; }
.brand small { display: block; font-weight: 500; letter-spacing: .06em; font-size: .68rem; color: var(--ink-soft); }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .76rem; font-weight: 800; padding: 3px 10px; border-radius: 999px;
  border: 1px solid var(--line); background: #fff; white-space: nowrap;
}
.badge::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: var(--ink-soft); }
.badge.st-open::before   { background: var(--ok); }
.badge.st-open           { border-color: var(--ok); color: var(--ok); }
.badge.st-preparing::before { background: var(--warn); }
.badge.st-preparing      { border-color: var(--warn); color: var(--warn); }
.badge.st-paused::before { background: var(--warn); }
.badge.st-paused         { border-color: var(--warn); color: var(--warn); }
.badge.st-ended::before  { background: var(--shu); }
.badge.st-ended          { border-color: var(--shu); color: var(--shu); }

.spacer { flex: 1; }

/* ---------- ボタン ---------- */
button, .btn {
  font: inherit; font-weight: 700; cursor: pointer;
  padding: 11px 18px; border-radius: var(--radius);
  border: 1px solid var(--ink); background: var(--paper-lite); color: var(--ink);
  box-shadow: 0 2px 0 var(--ink);
  transition: transform .06s ease, box-shadow .06s ease, background .15s ease;
  touch-action: manipulation;
}
button:hover, .btn:hover { background: #fff; }
button:active, .btn:active { transform: translateY(2px); box-shadow: 0 0 0 var(--ink); }
button:disabled { opacity: .42; cursor: not-allowed; box-shadow: none; transform: none; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 3px solid var(--shu); outline-offset: 2px;
}
.btn-primary { background: var(--ink); color: #FBF9F4; }
.btn-primary:hover { background: #3a352e; }
.btn-shu { background: var(--shu); border-color: #8e2d1c; color: #fff; box-shadow: 0 2px 0 #8e2d1c; }
.btn-shu:hover { background: #a8361f; }
.btn-warn { background: #FBEBC8; border-color: var(--warn); box-shadow: 0 2px 0 var(--warn); }
.btn-sm { padding: 6px 12px; font-size: .82rem; box-shadow: 0 1px 0 var(--ink); }
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- 入力 ---------- */
label.field { display: block; margin-bottom: 14px; }
label.field > span { display: block; font-weight: 700; font-size: .84rem; margin-bottom: 5px; }
input[type=text], input[type=date], input[type=datetime-local], input[type=number], select, textarea {
  font: inherit; width: 100%; padding: 10px 12px;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; color: var(--ink);
}
textarea { resize: vertical; line-height: 1.6; }
input:focus, textarea:focus, select:focus { border-color: var(--ink); }

/* ---------- 付箋（紙の付箋そのもの） ---------- */
.stick {
  position: relative;
  padding: 12px 13px 8px;
  border-radius: 1px;
  background: var(--note-y);
  background-image:
    radial-gradient(130% 90% at 10% -10%, rgba(255,255,255,.62), rgba(255,255,255,0) 62%),
    radial-gradient(120% 90% at 110% 120%, rgba(36,33,29,.10), rgba(36,33,29,0) 60%);
  color: var(--ink);
  transform: rotate(var(--tilt, 0deg));
  box-shadow:
    0 1px 0 rgba(36,33,29,.12),
    0 2px 3px -1px rgba(36,33,29,.18),
    0 16px 22px -18px rgba(36,33,29,.85);
  break-inside: avoid;
}
.stick.c-p { background-color: var(--note-p); }
.stick.c-b { background-color: var(--note-b); }
.stick.c-g { background-color: var(--note-g); }
.stick.c-y { background-color: var(--note-y); }
.bnote.c-p, .tnote.c-p { --note-bg: var(--note-p); }
.stick .t {
  white-space: pre-wrap; word-break: break-word;
  font-size: .82rem; line-height: 1.55;
  text-align: left;
}
.stick .f {
  display: flex; align-items: center; gap: 6px;
  margin-top: 7px; padding-top: 5px;
  border-top: 1px solid rgba(36,33,29,.14);
  font-size: .7rem; color: rgba(36,33,29,.8);
}
.stick .nm { font-weight: 800; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stick .tail { margin-left: auto; flex: none; white-space: nowrap; }
.stick .tail.stamp {
  font-weight: 800; color: var(--shu); border: 1px solid var(--shu);
  border-radius: 2px; padding: 0 5px; background: rgba(255,255,255,.65);
}
.stick .acts { display: flex; gap: 5px; margin-top: 6px; }
.stick .acts button {
  flex: 1; padding: 4px 0; font-size: .7rem; font-weight: 800;
  box-shadow: none; border-color: rgba(36,33,29,.32);
  background: rgba(255,255,255,.6); color: var(--ink);
}
.stick.presented { background-color: #E7E2D6 !important; opacity: .62; }
.stick.presented .t { text-decoration: line-through; text-decoration-color: rgba(36,33,29,.3); }
.stick.flash { animation: flash 1.4s ease-out 1; }
@keyframes flash {
  0%   { box-shadow: 0 0 0 4px rgba(192,65,43,.85), 0 16px 22px -18px rgba(36,33,29,.85); }
  100% { box-shadow: 0 1px 0 rgba(36,33,29,.12), 0 16px 22px -18px rgba(36,33,29,.85); }
}

/* 付箋を貼り出す壁（トレイ・自分の投稿） */
.note-wall { columns: 190px 2; column-gap: 12px; }
.note-wall > .stick { width: 100%; margin: 0 0 16px; display: block; }

/* ---------- 欄外の注意 ---------- */
.caution {
  border: 1px solid var(--shu); border-left-width: 6px;
  background: var(--shu-soft); color: #6d2317;
  padding: 10px 12px; border-radius: var(--radius); font-size: .86rem; font-weight: 700;
}
.hint {
  border: 1px dashed var(--line); background: #FFFDF7;
  padding: 10px 12px; border-radius: var(--radius); font-size: .86rem;
}

.toast {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%) translateY(20px);
  background: var(--ink); color: #FBF9F4; padding: 10px 18px; border-radius: 999px;
  font-size: .88rem; font-weight: 700; box-shadow: var(--shadow-2);
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s; z-index: 60; max-width: 90vw; text-align: center;
}
.toast.on { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.err { background: var(--shu); }

.urlbox {
  display: flex; gap: 8px; align-items: center; margin-top: 6px;
}
.urlbox input { font-family: var(--font-mono); font-size: .76rem; padding: 7px 9px; }

/* ---------- グリッド ---------- */
.grid { display: grid; gap: 14px; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); }

table { width: 100%; border-collapse: collapse; font-size: .86rem; }
th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); }
th { font-size: .76rem; color: var(--ink-soft); }

/* ---------- 代表者画面（PC） ---------- */
.lead-shell { display: grid; grid-template-columns: 360px 1fr; gap: 16px; align-items: start; }
@media (max-width: 900px) { .lead-shell { grid-template-columns: 1fr; } }
.tray { max-height: calc(100vh - 250px); min-height: 46vh; overflow: auto; padding-right: 4px; }
.tray .note { margin-bottom: 20px; }
.board {
  min-height: 62vh; border: 1px solid var(--line); border-radius: var(--radius);
  background-color: #FBF8F1;
  background-image: linear-gradient(rgba(36,33,29,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(36,33,29,.06) 1px, transparent 1px);
  background-size: 22px 22px;
  display: flex; align-items: center; justify-content: center; text-align: center;
  padding: 24px; color: var(--ink-soft);
}
.tray-notes { display: grid; gap: 22px; }

/* ---------- スマホ入力 ---------- */
.join-wrap { max-width: 620px; margin: 0 auto; padding: 0 12px 180px; }
.slot { margin-bottom: 26px; }
.slot-note { background: #fff; border-radius: 1px; }
.slot-note.stick { padding: 4px 6px 2px; }
.slot-note.stick textarea {
  border: 0; background: transparent; width: 100%;
  min-height: 96px; padding: 10px 8px 4px;
  font-size: .92rem; line-height: 1.55; color: var(--ink);
  resize: none;
}
.slot-note.stick textarea::placeholder { color: rgba(36,33,29,.42); }
.slot-note.stick .slot-meta { padding: 0 8px 6px; }
.slot-meta { display: flex; justify-content: space-between; align-items: center; padding: 0 10px 8px; font-size: .74rem; color: var(--ink-soft); }
.count.over { color: var(--shu); font-weight: 800; }
.slot .state { font-weight: 800; }
.slot .state.err { color: var(--shu); }
.mine-list { columns: 150px 2; column-gap: 10px; margin-top: 14px; }
.mine-list > .stick { width: 100%; margin: 0 0 14px; display: block; }
.mnote .t { font-size: .76rem; }
.sticky-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  background: rgba(247,244,236,.96); border-top: 1px solid var(--line);
  padding: 10px 12px calc(10px + env(safe-area-inset-bottom));
  backdrop-filter: blur(6px);
}
.sticky-in { max-width: 620px; margin: 0 auto; display: flex; flex-direction: column; gap: 8px; }
.sticky-in button { width: 100%; padding: 14px 18px; font-size: 1.02rem; }
.status-note { display: none; margin: 0; font-size: .82rem; font-weight: 800; color: var(--shu); text-align: center; line-height: 1.45; }
.status-note.on { display: block; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ================================================================
   第2段階：配置ボード（班代表者のノートPC画面）
   画面いっぱいの1枚のボード。付箋は届いた時点で自動配置され、
   代表者はドラッグで並べ替えるだけ。
   ================================================================ */
body.board-page { height: 100vh; overflow: hidden; display: flex; flex-direction: column; }
.board-page .topbar { flex: none; }
.board-page .topbar-in { flex-wrap: nowrap; }
.theme-line { font-weight: 700; font-size: .9rem; color: var(--ink-soft); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 46vw; }
@media (max-width: 900px) { .theme-line { display: none; } }

.toolbar-bar { flex: none; padding: 8px 12px; background: rgba(244,241,233,.94); border-bottom: 1px solid var(--line); }
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin: 0; }
.toolbar .grow { flex: 1; min-width: 8px; }
.toolbar .tip { font-size: .8rem; }
@media (max-width: 1180px) { .toolbar .tip { display: none; } }
.seg { display: flex; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--paper-lite); }
.seg button { border: 0; box-shadow: none; border-radius: 0; padding: 8px 13px; background: transparent; font-weight: 700; }
.seg button + button { border-left: 1px solid var(--line); }
.seg button:active { transform: none; box-shadow: none; }
.save-state { font-size: .78rem; font-weight: 800; display: inline-flex; align-items: center; gap: 6px; color: var(--ink-soft); }
.save-state::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--ink-soft); }
.save-state.saved { color: var(--ok); }
.save-state.saved::before { background: var(--ok); }
.save-state.saving { color: var(--warn); }
.save-state.saving::before { background: var(--warn); animation: pulse 1s infinite; }
.save-state.offline { color: var(--shu); }
.save-state.offline::before { background: var(--shu); }
@keyframes pulse { 50% { opacity: .2; } }

.viewport {
  flex: 1 1 auto; min-height: 0; width: auto;
  margin: 8px 10px calc(8px + env(safe-area-inset-bottom));
  position: relative; overflow: hidden; cursor: grab; touch-action: none;
  border: 1px solid var(--line); border-radius: var(--radius); background: #FCFAF4;
}
.viewport.panning { cursor: grabbing; }
.world { position: absolute; left: 0; top: 0; width: 6000px; height: 5000px; transform-origin: 0 0;
  background-image: linear-gradient(rgba(36,33,29,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(36,33,29,.055) 1px, transparent 1px);
  background-size: 24px 24px, 24px 24px; }

.bnote { position: absolute; width: 208px; cursor: grab; touch-action: none; user-select: none; }
.bnote.drag { z-index: 6; box-shadow: 0 3px 5px -2px rgba(36,33,29,.3), 0 30px 40px -20px rgba(36,33,29,.85); }
.ghost { position: fixed; width: 208px; pointer-events: none; z-index: 90; opacity: .96; transform: rotate(-2deg); box-shadow: 0 30px 40px -20px rgba(36,33,29,.85); }
.canvas-hint { position: absolute; left: 44px; top: 40px; max-width: 560px; color: var(--ink-soft); font-size: .92rem; pointer-events: none; line-height: 1.9; }
.canvas-hint b { color: var(--ink); }

.modal { position: fixed; inset: 0; background: rgba(24,21,18,.62); display: none; align-items: center; justify-content: center; padding: 24px; z-index: 80; }
.modal.on { display: flex; }
.modal-card { background: var(--paper-lite); border-radius: var(--radius); box-shadow: var(--shadow-2); max-width: 960px; width: 100%; max-height: 88vh; overflow: auto; padding: 26px 28px; }
.modal-card .meta { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; font-size: .84rem; color: var(--ink-soft); }
.modal-card .stamp { font-weight: 800; color: var(--shu); border: 1px solid var(--shu); border-radius: 2px; padding: 0 5px; }
.modal-card .big { font-size: clamp(1.5rem, 3.6vw, 2.3rem); line-height: 1.6; font-family: var(--font-disp); font-weight: 700; white-space: pre-wrap; word-break: break-word; margin: 0 0 20px; }
.modal-card h2 { margin-bottom: 4px; }
.hidden-row { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--line); }
.hidden-row .tx { flex: 1; font-size: .9rem; }

/* ================================================================
   第3段階：囲み・線（マジック）と表札
   ================================================================ */
/* 操作モードの切り替え（大きく・目立つ） */
.modebar {
  flex: none; display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 8px 12px; background: #F0ECE1; border-bottom: 1px solid var(--line);
}
.modebar .spacer { flex: 1; min-width: 8px; }
.mode-switch { display: flex; gap: 8px; }
.mode-switch button {
  display: flex; align-items: center; gap: 9px; padding: 9px 16px;
  border: 2px solid var(--line); background: #fff; box-shadow: none; border-radius: 4px;
  text-align: left; line-height: 1.2;
}
.mode-switch button .mi { font-size: 1.25rem; }
.mode-switch button .mt { display: flex; flex-direction: column; }
.mode-switch button .mt b { font-size: 1.02rem; }
.mode-switch button .mt small { font-size: .7rem; color: var(--ink-soft); font-weight: 600; }
.mode-switch button:hover { background: #FFFDF8; }
.mode-switch button.mode-on {
  border-color: var(--ink); background: var(--ink); color: #FBF9F4;
  box-shadow: 0 2px 0 rgba(36,33,29,.6);
}
.mode-switch button.mode-on .mt small { color: rgba(251,249,244,.75); }
#modeMagic.mode-on { border-color: #9E2C18; background: var(--shu); box-shadow: 0 2px 0 #7d2212; }
#modeMagic.mode-on .mt small { color: rgba(255,255,255,.85); }

.draw-tools, .sel-tools { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.grp { display: flex; align-items: center; gap: 6px; }
.gl { font-size: .74rem; font-weight: 800; color: var(--ink-soft); }
.sw { width: 30px; height: 30px; border-radius: 50%; border: 3px solid #fff; box-shadow: 0 0 0 1px var(--line); padding: 0; }
.sw.red { background: #C0392B; }
.sw.blue { background: #2A5DB0; }
.sw.black { background: #24211D; }
.sw.on { box-shadow: 0 0 0 3px var(--ink); transform: scale(1.06); }
.tool { padding: 7px 13px; font-size: .86rem; box-shadow: none; border-color: var(--line); background: #fff; }
.tool.on { background: var(--ink); color: #FBF9F4; border-color: var(--ink); font-weight: 800; }
.sel-tools .muted { font-size: .82rem; }
.undo-tools { display: flex; gap: 6px; }

/* 描画面（付箋の後ろに描かれる） */
.viewport > canvas { position: absolute; left: 0; top: 0; z-index: 0; pointer-events: none; }
.viewport.magic { cursor: crosshair; }
.viewport.magic > canvas { pointer-events: auto; }
.viewport.magic .world { pointer-events: none; }
.viewport.placing { cursor: copy; }

/* 表札 */
.lab {
  position: absolute; z-index: 9; cursor: grab; user-select: none;
  background: #FFFDF6; border: 2px solid var(--ink);
  border-radius: 3px; padding: 6px 10px;
  font-weight: 800; font-size: .92rem; line-height: 1.3; color: var(--ink);
  box-shadow: 0 2px 0 rgba(36,33,29,.25), 0 10px 16px -12px rgba(36,33,29,.8);
}
.lab::after { content: ""; position: absolute; inset: 3px -2px -2px 3px; border-radius: 3px; z-index: -1; background: rgba(255,255,255,.5); }
.lab.k-red { border-color: #C0392B; }
.lab.k-blue { border-color: #2A5DB0; }
.lab.k-black { border-color: #24211D; }
.lab.drag { box-shadow: 0 12px 22px -12px rgba(36,33,29,.9); z-index: 20; }