:root {
  --bg: #1d2b3a;
  --topbar: #16212e;
  --list-bg: #ebecf0;
  --card-bg: #ffffff;
  --text: #172b4d;
  --muted: #5e6c84;
  --accent: #4a90d9;
  --danger: #d9534f;
  --overdue: #d9534f;
  --shadow: 0 1px 2px rgba(9,30,66,.25);
}
* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg); color: var(--text);
}
.hidden { display: none !important; }

/* ---- login ---- */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card {
  background: #fff; padding: 32px; border-radius: 10px; width: 320px;
  display: flex; flex-direction: column; gap: 12px; box-shadow: 0 8px 30px rgba(0,0,0,.3);
}
.login-card h1 { margin: 0 0 8px; font-size: 22px; text-align: center; }
.login-card input {
  padding: 10px 12px; border: 1px solid #ccc; border-radius: 6px; font-size: 15px;
}
.login-card button {
  padding: 10px; border: 0; border-radius: 6px; background: var(--accent); color: #fff;
  font-size: 15px; cursor: pointer;
}
.login-card button:hover { filter: brightness(1.05); }
.login-error { color: var(--danger); font-size: 13px; min-height: 16px; text-align: center; }

/* ---- topbar ---- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--topbar); color: #fff; padding: 8px 14px; gap: 12px; flex-wrap: wrap;
}
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 8px; }
.brand { font-weight: 600; }
#board-select { padding: 6px 8px; border-radius: 6px; border: 0; font-size: 14px; }
.who { color: #b6c2cf; font-size: 13px; }
.btn-ghost {
  background: rgba(255,255,255,.12); color: #fff; border: 0; padding: 6px 10px;
  border-radius: 6px; cursor: pointer; font-size: 13px;
}
.btn-ghost:hover { background: rgba(255,255,255,.24); }
.btn-ghost.danger:hover { background: var(--danger); }

/* ---- board ---- */
.board {
  display: flex; align-items: flex-start; gap: 12px; padding: 16px;
  overflow-x: auto; height: calc(100vh - 52px);
}
.list {
  background: var(--list-bg); border-radius: 10px; width: 280px; flex: 0 0 280px;
  max-height: 100%; display: flex; flex-direction: column; padding: 8px;
}
.list-head { display: flex; align-items: center; justify-content: space-between; padding: 4px 6px; }
.list-title { font-weight: 600; font-size: 14px; border: 0; background: transparent; width: 100%; }
.list-title:focus { background: #fff; outline: 1px solid var(--accent); border-radius: 4px; }
.list-del { background: none; border: 0; cursor: pointer; color: var(--muted); font-size: 14px; }
.list-del:hover { color: var(--danger); }
.cards { flex: 1; overflow-y: auto; min-height: 8px; padding: 4px 2px; display: flex; flex-direction: column; gap: 8px; }
.card {
  background: var(--card-bg); border-radius: 8px; box-shadow: var(--shadow); padding: 8px 10px;
  cursor: pointer; font-size: 14px;
}
.card.done .card-title { text-decoration: line-through; color: var(--muted); }
.card-labels { display: flex; flex-wrap: wrap; gap: 4px; margin-bottom: 6px; }
.chip { height: 8px; min-width: 34px; border-radius: 4px; }
.chip.text { height: auto; padding: 1px 8px; font-size: 11px; color: #fff; line-height: 16px; }
.card-title { word-break: break-word; }
.card-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; font-size: 12px; color: var(--muted); align-items: center; }
.badge { display: inline-flex; align-items: center; gap: 4px; background: #dfe1e6; padding: 1px 6px; border-radius: 4px; }
.badge.due-overdue { background: var(--overdue); color: #fff; }
.badge.done { background: #61bd4f; color: #fff; }
.add-card { background: none; border: 0; text-align: left; color: var(--muted); cursor: pointer; padding: 6px; font-size: 13px; border-radius: 6px; }
.add-card:hover { background: rgba(9,30,66,.08); color: var(--text); }
.add-list {
  background: rgba(255,255,255,.18); color: #fff; border: 0; border-radius: 10px;
  width: 280px; flex: 0 0 280px; padding: 12px; cursor: pointer; text-align: left;
}
.add-list:hover { background: rgba(255,255,255,.28); }
.sortable-ghost { opacity: .4; }
.sortable-drag { transform: rotate(2deg); }

/* ---- modals ---- */
.modal-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.5); display: flex;
  align-items: flex-start; justify-content: center; padding: 40px 16px; overflow-y: auto; z-index: 50;
}
.modal {
  background: #fff; border-radius: 10px; width: 560px; max-width: 100%; padding: 20px;
  position: relative; box-shadow: 0 12px 40px rgba(0,0,0,.4);
}
.modal-close { position: absolute; top: 12px; right: 12px; border: 0; background: none; font-size: 16px; cursor: pointer; color: var(--muted); }
.cm-title { font-size: 20px; font-weight: 600; width: 100%; border: 0; border-bottom: 2px solid transparent; padding: 4px 2px; }
.cm-title:focus { outline: none; border-bottom-color: var(--accent); }
.cm-row { display: flex; gap: 20px; align-items: center; margin: 14px 0; flex-wrap: wrap; font-size: 14px; }
.cm-check { display: inline-flex; align-items: center; gap: 6px; }
.cm-section { margin: 16px 0; }
.cm-section h4 { margin: 0 0 8px; font-size: 13px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.cm-section-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.cm-section-head h4 { margin: 0; }
#cm-desc { width: 100%; border: 1px solid #ccc; border-radius: 6px; padding: 8px; font-family: inherit; font-size: 14px; resize: vertical; }
.cm-labels { display: flex; flex-wrap: wrap; gap: 6px; }
.lbl-toggle { border: 0; border-radius: 5px; padding: 4px 10px; cursor: pointer; color: #fff; font-size: 12px; opacity: .45; }
.lbl-toggle.on { opacity: 1; box-shadow: inset 0 0 0 2px rgba(0,0,0,.35); }
.lbl-toggle.empty { min-width: 40px; }
.checklist { border: 1px solid #eee; border-radius: 8px; padding: 10px; margin-bottom: 10px; }
.checklist-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin-bottom: 6px; }
.checklist-head strong { font-size: 14px; }
.progress-wrap { display: flex; align-items: center; gap: 8px; margin: 4px 0 8px; }
.progress-bar { flex: 1; height: 8px; background: #dfe1e6; border-radius: 4px; overflow: hidden; }
.progress-fill { height: 100%; background: #61bd4f; width: 0; transition: width .15s; }
.progress-num { font-size: 12px; color: var(--muted); min-width: 30px; }
.ci { display: flex; align-items: center; gap: 8px; padding: 3px 0; font-size: 14px; }
.ci input[type=checkbox] { flex: 0 0 auto; }
.ci-text { flex: 1; }
.ci-text.done { text-decoration: line-through; color: var(--muted); }
.ci-del { border: 0; background: none; color: var(--muted); cursor: pointer; }
.ci-del:hover { color: var(--danger); }
.ci-add { display: flex; gap: 6px; margin-top: 6px; }
.ci-add input { flex: 1; padding: 5px 8px; border: 1px solid #ccc; border-radius: 5px; }
.cm-footer { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; }
.cm-saved { color: #61bd4f; font-size: 12px; }
.btn { border: 0; border-radius: 6px; padding: 7px 12px; cursor: pointer; background: var(--accent); color: #fff; font-size: 13px; }
.btn:hover { filter: brightness(1.05); }
.btn.danger { background: var(--danger); }
.labels-list { display: flex; flex-direction: column; gap: 6px; margin: 10px 0; }
.labels-row { display: flex; gap: 8px; align-items: center; }
.labels-row input[type=text] { flex: 1; padding: 5px 8px; border: 1px solid #ccc; border-radius: 5px; }
.labels-add { display: flex; gap: 8px; margin-top: 12px; align-items: center; }
.labels-add input[type=text] { flex: 1; padding: 6px 8px; border: 1px solid #ccc; border-radius: 5px; }