:root{
  --bg:#f5f2ea;
  --surface:#ffffff;
  --surface-2:#efe9dc;
  --ink:#242220;
  --ink-soft:#5b564d;
  --line:#ddd5c4;
  --accent:#2f5d62;
  --accent-ink:#ffffff;
  --accent-soft:#e3eeee;
  --input-bg:#fdf3d0;
  --dim-bg:#efece2;
  --dim-ink:#b7b0a0;
  --danger:#a8384a;

  --p-design:#3f8f5f; --p-design-tint:#e7f3ec;
  --p-quote:#3b6fa6; --p-quote-tint:#e8eef6;
  --p-material:#c98a17; --p-material-tint:#faf1de;
  --p-build:#a8384a; --p-build-tint:#f7e9eb;
  --p-review:#7a7469; --p-review-tint:#efece6;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#191b18; --surface:#222420; --surface-2:#2a2c27;
    --ink:#ece7dc; --ink-soft:#b6b0a2; --line:#3a3c35;
    --accent:#7fb8ba; --accent-ink:#12211f; --accent-soft:#26302f;
    --input-bg:#3a3417; --dim-bg:#232520; --dim-ink:#5b584f; --danger:#e08a97;
    --p-design:#5fae7c; --p-design-tint:#20302a;
    --p-quote:#7ea6d6; --p-quote-tint:#202b38;
    --p-material:#dba646; --p-material-tint:#332a15;
    --p-build:#d17685; --p-build-tint:#38232a;
    --p-review:#a29c8e; --p-review-tint:#2b2b26;
  }
}
:root[data-theme="dark"]{
  --bg:#191b18; --surface:#222420; --surface-2:#2a2c27;
  --ink:#ece7dc; --ink-soft:#b6b0a2; --line:#3a3c35;
  --accent:#7fb8ba; --accent-ink:#12211f; --accent-soft:#26302f;
  --input-bg:#3a3417; --dim-bg:#232520; --dim-ink:#5b584f; --danger:#e08a97;
  --p-design:#5fae7c; --p-design-tint:#20302a;
  --p-quote:#7ea6d6; --p-quote-tint:#202b38;
  --p-material:#dba646; --p-material-tint:#332a15;
  --p-build:#d17685; --p-build-tint:#38232a;
  --p-review:#a29c8e; --p-review-tint:#2b2b26;
}

*{box-sizing:border-box;}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans JP",sans-serif;font-variant-numeric:tabular-nums;}
button{font-family:inherit;}

/* ---------- login ---------- */
.login-screen{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg, var(--accent) 0%, #1c3a3d 100%);
  padding:24px;
}
.login-card{
  background:var(--surface);border-radius:16px;padding:36px 32px;
  width:100%;max-width:360px;box-shadow:0 20px 50px rgba(0,0,0,.25);
  display:flex;flex-direction:column;gap:14px;
}
.login-card h1{font-family:"Shippori Mincho",serif;font-size:22px;margin:0;text-align:center;}
.login-sub{font-size:12.5px;color:var(--ink-soft);text-align:center;margin:0 0 6px;}
.login-card input{padding:12px 14px;border-radius:8px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);font-size:15px;}
.login-card button[type="submit"]{padding:12px;border-radius:8px;border:none;background:var(--accent);color:var(--accent-ink);font-weight:700;font-size:15px;cursor:pointer;}
.login-card button[type="submit"]:hover{filter:brightness(1.05);}
.login-error{color:var(--danger);font-size:12.5px;text-align:center;margin:0;}
.demo-btn{margin-top:2px;padding:10px;border-radius:8px;border:1px dashed var(--line);background:var(--surface-2);color:var(--ink-soft);font-size:12.5px;font-weight:600;cursor:pointer;}
.demo-btn:hover{background:var(--accent-soft);color:var(--accent);}
.demo-banner{background:#fff4d6;color:#6b4e00;border:1px solid #e8cf8a;border-radius:10px;padding:8px 14px;font-size:12px;font-weight:600;text-align:center;margin-bottom:14px;}
:root[data-theme="dark"] .demo-banner{background:#3a2f10;color:#e8cf8a;border-color:#5a4a1c;}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) .demo-banner{background:#3a2f10;color:#e8cf8a;border-color:#5a4a1c;}
}

/* ---------- layout: fluid width, fixed side margins ---------- */
.app{width:100%;box-sizing:border-box;padding:24px 32px 60px;margin:0;}
.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:16px;flex-wrap:wrap;}
.topbar h1{font-family:"Shippori Mincho",serif;font-size:clamp(19px,2.2vw,26px);margin:0 0 4px;text-wrap:balance;}
.topbar .sub{margin:0;color:var(--ink-soft);font-size:12.5px;}
.topbar-user{display:flex;align-items:center;gap:10px;}
.user-chip{background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:6px 14px;font-weight:700;font-size:12.5px;}
.ghost-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:8px;padding:7px 13px;font-size:12.5px;font-weight:600;cursor:pointer;}
.ghost-btn:hover{background:var(--surface-2);}

.legend{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;font-size:12px;font-weight:600;border:1px solid var(--line);background:var(--surface);}
.chip .dot{width:8px;height:8px;border-radius:3px;flex:none;}

.filterbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 12px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:10px 14px;margin-bottom:16px;}
.filterbar .label{font-size:12px;color:var(--ink-soft);}
.filter-sep{width:1px;align-self:stretch;background:var(--line);}
.toggle{display:inline-flex;align-items:center;gap:5px;padding:4px 10px 4px 7px;border-radius:999px;border:1px solid var(--line);background:var(--surface-2);font-size:12.5px;font-weight:600;cursor:pointer;user-select:none;}
.toggle input{accent-color:var(--accent);width:13px;height:13px;cursor:pointer;}
.toggle.off{opacity:.45;}
.all-toggle{font-weight:700;background:var(--accent-soft);color:var(--accent);border-color:transparent;}

/* ---------- board: CSS grid, no fixed table width ---------- */
.board{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow-x:auto;}
.grid{display:flex;flex-direction:column;min-width:0;}
.grid-row{
  display:grid;
  grid-template-columns: 34px minmax(110px,1fr) minmax(160px,1.6fr) minmax(100px,.9fr) 60px 60px 42px 84px minmax(110px,1.1fr) 38px minmax(240px,2.4fr);
  align-items:stretch;
}
.grid-head{position:sticky;top:0;z-index:2;background:var(--accent);color:var(--accent-ink);border-radius:14px 14px 0 0;overflow:hidden;}
.grid-head .cell{font-weight:600;font-size:11.5px;padding:9px 10px;}
.cell{padding:7px 9px;font-size:12px;display:flex;align-items:center;min-width:0;}
.cell.wrap{white-space:normal;}
/* Thin divider between the actions column (comment button) and the timeline. */
.grid-row>.cell:nth-last-child(2){border-right:1px solid var(--line);}
.grid-head .cell:nth-last-child(2){border-right-color:rgba(255,255,255,.35);}
#gridBody .grid-row{border-bottom:1px solid var(--line);}
#gridBody .grid-row:nth-child(even){background:var(--surface-2);}
#gridBody .grid-row:nth-child(odd){background:var(--surface);}
#gridBody .grid-row.dim{background:var(--dim-bg)!important;color:var(--dim-ink);}
#gridBody .grid-row.dim .phase-pill,
#gridBody .grid-row.dim .who span,
#gridBody .grid-row.dim .status-pill{opacity:.4;filter:grayscale(1);}
#gridBody .grid-row.dim .bar{opacity:.25;filter:grayscale(1);}
#gridBody .grid-row.clickable{cursor:pointer;}
#gridBody .grid-row.clickable:hover{filter:brightness(0.97);}
:root[data-theme="dark"] #gridBody .grid-row.clickable:hover{filter:brightness(1.12);}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]) #gridBody .grid-row.clickable:hover{filter:brightness(1.12);}
}
.date-text{font-variant-numeric:tabular-nums;white-space:nowrap;}
.days-text{font-weight:700;}

.phase-pill{display:inline-block;padding:3px 8px;border-radius:6px;font-size:11px;font-weight:700;white-space:nowrap;}
.status-pill{display:inline-block;padding:3px 9px;border-radius:999px;font-size:10.5px;font-weight:700;white-space:nowrap;background:var(--surface-2);border:1px solid var(--line);}
.status-pill.doing{color:var(--p-quote);border-color:var(--p-quote);}
.task-name{font-weight:600;line-height:1.4;}
.who{display:flex;flex-wrap:wrap;gap:4px;}
.who span{background:var(--surface-2);border:1px solid var(--line);border-radius:5px;padding:1px 6px;font-size:10.5px;font-weight:600;}
.notes-text{color:var(--ink-soft);font-size:11.5px;line-height:1.4;}
.row-actions{display:flex;gap:2px;align-items:center;}
.icon-btn{position:relative;border:none;background:none;cursor:pointer;font-size:14px;padding:3px 5px;color:var(--ink-soft);border-radius:5px;}
.icon-btn:hover{color:var(--accent);background:var(--accent-soft);}
.icon-btn.del-btn:hover{color:var(--danger);background:var(--p-build-tint);}
.unread-dot{position:absolute;top:1px;right:1px;width:7px;height:7px;border-radius:50%;background:var(--danger);border:1.5px solid var(--surface);}

/* timeline column: relative track with % overlays computed in JS.
   display:block overrides the base .cell's flex display — as flex items,
   these absolutely-positioned-only children would collapse to 0 width. */
.cell.tl-head{display:block;padding:0;position:relative;min-height:34px;}
.cell.tl{display:block;padding:0;position:relative;min-height:52px;}
.tl-track{position:relative;width:100%;height:100%;min-height:52px;}
.tl-head-track{position:relative;width:100%;height:100%;min-height:34px;}
/* Overlay elements are purely visual — never let them intercept clicks meant
   for the row/buttons underneath (they can overflow their own cell). */
.month-divider{position:absolute;top:0;bottom:0;width:1px;background:var(--line);pointer-events:none;}
.tl-head .month-divider{background:rgba(255,255,255,.35);}
.month-label{position:absolute;top:50%;transform:translate(-50%,-50%);font-size:11px;font-weight:600;white-space:nowrap;color:var(--accent-ink);pointer-events:none;}
.bar{position:absolute;top:9px;bottom:9px;border-radius:5px;box-shadow:inset 0 0 0 1px rgba(0,0,0,.08);pointer-events:none;}
.bar-label{position:absolute;top:50%;transform:translateY(-50%);font-size:10px;font-weight:700;color:var(--ink-soft);white-space:nowrap;pointer-events:none;}
.bar-label.start{transform:translate(-100%,-50%);padding-right:5px;}
.bar-label.end{padding-left:5px;}
.bar-label.start.inside{transform:translateY(-50%);padding-right:0;padding-left:5px;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.35);}
.bar-label.end.inside{transform:translate(-100%,-50%);padding-left:0;padding-right:5px;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.35);}
.today-line{position:absolute;top:0;bottom:0;width:2px;background:var(--accent);pointer-events:none;}

.add-task-btn{margin-top:14px;border:1px dashed var(--line);background:var(--surface);color:var(--accent);font-weight:700;border-radius:10px;padding:10px 16px;cursor:pointer;font-size:13px;}
.add-task-btn:hover{background:var(--accent-soft);}

footer{margin-top:18px;font-size:11.5px;color:var(--ink-soft);line-height:1.8;}
footer b{color:var(--ink);}

/* ---------- modals ---------- */
.modal{position:fixed;inset:0;background:rgba(20,18,14,.45);display:flex;align-items:center;justify-content:center;z-index:50;padding:20px;}
.modal-card{background:var(--surface);border-radius:14px;padding:22px;width:100%;max-width:520px;max-height:82vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.3);}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;cursor:move;user-select:none;touch-action:none;}
.modal-head h2{font-size:16px;margin:0;font-family:"Shippori Mincho",serif;}
.modal-head h2::before{content:"⠿  ";color:var(--ink-soft);letter-spacing:1px;}
.close-btn{border:none;background:none;font-size:20px;cursor:pointer;color:var(--ink-soft);line-height:1;}

.comment-list{display:flex;flex-direction:column;gap:10px;max-height:280px;overflow:auto;margin-bottom:14px;}
.comment-item{background:var(--surface-2);border-radius:8px;padding:8px 10px;font-size:12.5px;}
.comment-item .meta{font-size:11px;color:var(--ink-soft);margin-bottom:3px;font-weight:600;}
.comment-empty{color:var(--ink-soft);font-size:12.5px;}
.comment-form{display:flex;gap:8px;}
.comment-form textarea{flex:1;min-height:56px;resize:vertical;border-radius:8px;border:1px solid var(--line);padding:8px 10px;font-family:inherit;font-size:12.5px;background:var(--surface);color:var(--ink);}
.comment-form button{border:none;background:var(--accent);color:var(--accent-ink);border-radius:8px;padding:0 16px;font-weight:700;cursor:pointer;}

.admin-table{width:100%;border-collapse:collapse;margin-bottom:16px;font-size:12.5px;}
.admin-table th{text-align:left;color:var(--ink-soft);font-size:11px;padding:4px 6px;border-bottom:1px solid var(--line);}
.admin-table td{padding:6px;border-bottom:1px solid var(--line);}
.admin-subheading{font-size:13px;font-family:"Shippori Mincho",serif;margin:18px 0 10px;padding-top:14px;border-top:1px solid var(--line);}
.add-account-form{display:flex;gap:6px;flex-wrap:wrap;}
.add-account-form input,.add-account-form select{flex:1;min-width:100px;padding:8px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:12.5px;}
.add-account-form input[type="color"]{flex:none;width:40px;min-width:40px;padding:2px;cursor:pointer;}
.add-account-form button{border:none;background:var(--accent);color:var(--accent-ink);border-radius:6px;padding:8px 14px;font-weight:700;cursor:pointer;}
.phase-color-input{width:34px;height:26px;padding:1px;border:1px solid var(--line);border-radius:5px;cursor:pointer;background:none;}
.phase-label-input{width:100%;padding:6px 8px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:12.5px;}

.add-task-form{display:flex;flex-direction:column;gap:10px;}
.add-task-form label{display:flex;flex-direction:column;gap:4px;font-size:12px;color:var(--ink-soft);font-weight:600;}
.add-task-form input,.add-task-form select{padding:8px 10px;border-radius:6px;border:1px solid var(--line);background:var(--surface);color:var(--ink);font-size:13px;font-weight:400;}
.add-task-form .two-col{display:flex;gap:10px;}
.add-task-form .two-col label{flex:1;}
.assignee-buttons{display:flex;flex-wrap:wrap;gap:6px;}
.assignee-btn{padding:5px 12px;border-radius:999px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);font-size:12px;font-weight:600;cursor:pointer;}
.assignee-btn:hover{background:var(--accent-soft);}
.assignee-btn.active{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);}
.task-form-actions{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:4px;}
.task-form-actions button[type="submit"]{border:none;background:var(--accent);color:var(--accent-ink);border-radius:8px;padding:10px 18px;font-weight:700;cursor:pointer;font-size:13px;}
.danger-btn{border:1px solid var(--danger);background:transparent;color:var(--danger);border-radius:8px;padding:9px 14px;font-weight:700;cursor:pointer;font-size:12.5px;}
.danger-btn:hover{background:var(--danger);color:#fff;}
.confirm-card{max-width:360px;text-align:center;}
.confirm-card p{font-size:13.5px;margin:6px 0 18px;}
.confirm-actions{display:flex;justify-content:center;gap:10px;}

.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 18px;border-radius:8px;font-size:12.5px;z-index:100;box-shadow:0 8px 24px rgba(0,0,0,.3);}
[hidden]{display:none!important;}