:root {
  --bg: #f5f6fa;
  --panel: #ffffff;
  --panel-2: #f0f2f7;
  --border: #dde1ea;
  --text: #1d2230;
  --muted: #6b7386;
  --accent: #4f6bff;
  --accent-soft: #e6eaff;
  --danger: #d6455d;
  --note: #e0a526;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(20, 30, 60, .08);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161d;
    --panel: #1c1f29;
    --panel-2: #242836;
    --border: #323748;
    --text: #e6e8ef;
    --muted: #949bb0;
    --accent: #7b90ff;
    --accent-soft: #2a3156;
    --shadow: 0 2px 12px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text);
}
a { color: var(--accent); text-decoration: none; }
h1, h2, h3 { margin: 0; line-height: 1.2; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }
h3 { font-size: 15px; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.loading, .empty { padding: 40px; text-align: center; color: var(--muted); }
.error { color: var(--danger); min-height: 1.2em; }

/* ---------- controls ---------- */
input, select, textarea {
  font: inherit; color: inherit; background: var(--panel);
  border: 1px solid var(--border); border-radius: 7px; padding: 7px 9px; min-width: 0;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
input[type=color] { padding: 2px; width: 44px; height: 34px; }
input[type=checkbox] { width: auto; }
textarea { resize: vertical; min-height: 90px; }
.btn {
  font: inherit; cursor: pointer; border-radius: 7px; padding: 7px 14px;
  border: 1px solid var(--border); background: var(--panel); color: var(--text); white-space: nowrap;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: .45; cursor: default; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); }
.btn.danger { color: var(--danger); }
.btn.danger:hover:not(:disabled) { border-color: var(--danger); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { border-color: var(--border); }
.btn.small { padding: 4px 9px; font-size: 13px; }
.icon-btn {
  cursor: pointer; background: transparent; border: 1px solid transparent; color: var(--muted);
  border-radius: 6px; padding: 3px 8px; font: inherit;
}
.icon-btn:hover:not(:disabled) { border-color: var(--border); color: var(--text); }
.icon-btn:disabled { opacity: .3; cursor: default; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.field > span { font-weight: 600; font-size: 13px; }
.row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grow { flex: 1; }
.badge {
  display: inline-block; font-size: 11px; font-weight: 600; text-transform: uppercase; letter-spacing: .03em;
  padding: 2px 7px; border-radius: 99px; background: var(--panel-2); color: var(--muted);
}
.badge.owner { background: var(--accent-soft); color: var(--accent); }
.badge.edit { background: #dff5e6; color: #23824a; }
@media (prefers-color-scheme: dark) { .badge.edit { background: #1f3b2a; color: #6fd497; } }

/* ---------- layout ---------- */
.topbar {
  display: flex; align-items: center; gap: 24px; padding: 10px 20px;
  background: var(--panel); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 10;
}
.brand { font-weight: 700; font-size: 17px; color: var(--text); }
.topbar nav { display: flex; gap: 4px; }
.topbar nav a { color: var(--muted); padding: 6px 10px; border-radius: 6px; }
.topbar nav a:hover, .topbar nav a.active { color: var(--text); background: var(--panel-2); }
.user-menu { margin-left: auto; display: flex; gap: 6px; align-items: center; }
.main { max-width: 1400px; margin: 0 auto; padding: 22px 20px 60px; }
.page-head { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.page-head .actions { margin-left: auto; display: flex; gap: 8px; }
.panel {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px; box-shadow: var(--shadow); margin-bottom: 18px;
}
.panel > h2 { margin-bottom: 12px; }
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border); margin-bottom: 18px; }
.tabs a { padding: 8px 16px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a:hover { color: var(--text); }
.tabs a.active { color: var(--accent); border-color: var(--accent); font-weight: 600; }

.sync-status {
  font: inherit; font-size: 12px; cursor: pointer; border-radius: 99px; padding: 3px 10px;
  border: 1px solid var(--border); background: var(--panel-2); color: var(--muted); white-space: nowrap;
}
.sync-status.ok { color: #23824a; }
.sync-status.pending, .sync-status.syncing { color: var(--accent); }
.sync-status.offline { color: var(--muted); border-style: dashed; }
.sync-status.warn { color: #fff; background: var(--danger); border-color: var(--danger); }
@media (prefers-color-scheme: dark) { .sync-status.ok { color: #6fd497; } }

/* ---------- auth ---------- */
.auth-wrap { min-height: 100%; display: grid; place-items: center; padding: 20px; }
.auth-card {
  width: 100%; max-width: 360px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; padding: 28px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 6px;
}
.auth-card h1 { margin-bottom: 6px; }
.auth-card h2 { margin-bottom: 10px; color: var(--muted); font-weight: 500; }

/* ---------- projects ---------- */
.project-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.project-card {
  display: block; color: inherit; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); transition: border-color .15s, transform .15s;
}
.project-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.project-card-head { display: flex; justify-content: space-between; align-items: start; gap: 8px; margin-bottom: 8px; }
.project-card p { margin: 3px 0; }

/* ---------- calendar ---------- */
.cal-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 18px; align-items: start; }
@media (max-width: 900px) { .cal-layout { grid-template-columns: 1fr; } }
.cal-nav { display: flex; align-items: center; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.cal-nav .title { font-size: 20px; font-weight: 700; margin-right: auto; }
.cal-nav input[type=number] { width: 110px; }
.cal-grid {
  display: grid; gap: 1px; background: var(--border); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.cal-grid .wd {
  background: var(--panel-2); padding: 7px 6px; font-size: 12px; font-weight: 600; color: var(--muted);
  text-align: center; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.cell {
  background: var(--panel); min-height: 96px; padding: 5px; cursor: pointer; overflow: hidden;
  display: flex; flex-direction: column; gap: 2px;
}
.cell:hover { background: var(--panel-2); }
.cell.blank { background: var(--bg); cursor: default; }
.cell.selected { outline: 2px solid var(--accent); outline-offset: -2px; }
.cell-num { font-size: 12px; font-weight: 600; color: var(--muted); }
.cell.has-events .cell-num { color: var(--text); }
.chip {
  --c: var(--accent);
  font-size: 12px; padding: 1px 6px; border-radius: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  background: color-mix(in srgb, var(--c) 18%, var(--panel)); border-left: 3px solid var(--c);
}
.chip.cont { border-left-style: dashed; opacity: .8; }
.chip:hover { background: color-mix(in srgb, var(--c) 30%, var(--panel)); }
.more { font-size: 11px; color: var(--muted); padding-left: 4px; }

.day-panel { position: sticky; top: 70px; }
.day-panel h3 { margin-bottom: 12px; }
.day-panel .actions { display: flex; gap: 8px; margin-top: 14px; }
.entry {
  --c: var(--accent);
  border: 1px solid var(--border); border-left: 4px solid var(--c); border-radius: 8px;
  padding: 8px 10px; margin-bottom: 8px; cursor: pointer; background: var(--panel);
}
.entry:hover { background: var(--panel-2); }
.entry .entry-title { font-weight: 600; }
.entry .entry-meta { font-size: 12px; color: var(--muted); }
.entry .entry-desc { font-size: 13px; margin-top: 4px; white-space: pre-wrap; max-height: 5.8em; overflow: hidden; }

/* ---------- timeline ---------- */
.tl-filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.tl-filters input[type=search] { flex: 1; min-width: 200px; }
.tl-filters input[type=number] { width: 110px; }
.overview {
  position: relative; height: 46px; background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 24px; overflow: hidden;
}
.overview .tick {
  position: absolute; bottom: 0; height: 12px; border-left: 1px solid var(--border);
  font-size: 10px; color: var(--muted); padding-left: 3px; line-height: 12px; white-space: nowrap;
}
.overview .mark {
  --c: var(--accent);
  position: absolute; top: 6px; height: 20px; min-width: 3px; background: var(--c); opacity: .75;
  border-radius: 2px; cursor: pointer;
}
.overview .mark:hover { opacity: 1; outline: 2px solid var(--text); z-index: 2; }

.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 9px; top: 0; bottom: 0; width: 2px; background: var(--border); }
.tl-year {
  position: sticky; top: 52px; z-index: 3; margin: 22px 0 10px -28px; padding: 6px 0;
  background: var(--bg); font-size: 20px; font-weight: 800;
}
.tl-month { margin: 14px 0 8px; font-weight: 700; color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .05em; }
.tl-item { position: relative; margin-bottom: 10px; }
.tl-dot {
  --c: var(--accent);
  position: absolute; left: -24px; top: 14px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--c); border: 2px solid var(--bg);
}
.tl-card {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 10px 14px; cursor: pointer; box-shadow: var(--shadow); max-width: 860px;
}
.tl-card:hover { border-color: var(--accent); }
.tl-item.flash .tl-card { animation: flash 1.4s ease; }
@keyframes flash { 0%, 40% { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); } }
.tl-date { font-size: 12px; color: var(--muted); }
.tl-title { font-weight: 650; font-size: 15px; margin: 2px 0; }
.tl-desc { white-space: pre-wrap; font-size: 13px; }
.tl-meta { font-size: 12px; color: var(--muted); margin-top: 6px; display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- settings ---------- */
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); gap: 18px; align-items: start; }
.settings-grid .panel { margin-bottom: 0; }
.list-editor { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; }
.list-row { display: flex; gap: 6px; align-items: center; }
.list-row .idx { width: 26px; text-align: right; color: var(--muted); font-size: 12px; }
.list-row input.name { flex: 1; }
.list-row input.days { width: 80px; }
.summary { display: grid; grid-template-columns: auto 1fr; gap: 4px 14px; margin: 10px 0; }
.summary dt { color: var(--muted); }
.summary dd { margin: 0; font-weight: 600; }
.mini-grid { display: grid; gap: 2px; font-size: 11px; margin-top: 8px; }
.mini-grid div { text-align: center; padding: 3px 0; border-radius: 3px; background: var(--panel-2); overflow: hidden; }
.mini-grid .h { background: transparent; color: var(--muted); font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
.mini-grid .b { background: transparent; }
.sticky-save {
  position: sticky; bottom: 0; z-index: 5; display: flex; gap: 10px; align-items: center; justify-content: flex-end;
  padding: 12px 0; background: linear-gradient(transparent, var(--bg) 35%); margin-top: 10px;
}
.share-row { display: flex; gap: 8px; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--border); }
.share-row:last-child { border-bottom: 0; }

/* ---------- tables ---------- */
table.data { width: 100%; border-collapse: collapse; }
table.data th, table.data td { text-align: left; padding: 9px 8px; border-bottom: 1px solid var(--border); }
table.data th { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
table.data td.actions { text-align: right; white-space: nowrap; }

/* ---------- modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(10, 14, 25, .5); display: grid; place-items: center;
  z-index: 100; padding: 20px; animation: fade .12s ease;
}
@keyframes fade { from { opacity: 0; } }
.modal {
  width: 100%; max-width: 520px; max-height: calc(100vh - 40px); overflow: auto;
  background: var(--panel); border-radius: 14px; box-shadow: 0 10px 40px rgba(0, 0, 0, .3);
}
.modal.wide { max-width: 760px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px 0; }
.modal-body { padding: 16px 20px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; padding: 0 20px 18px; }
.modal-actions .left { margin-right: auto; }
.datepicker { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.datepicker input[type=number] { width: 100px; }
.datepicker .wd { color: var(--muted); font-size: 12px; }

/* ---------- toasts ---------- */
#toasts { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 200; }
.toast {
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px; box-shadow: var(--shadow);
  animation: fade .15s ease; max-width: 380px;
}
.toast.error { background: var(--danger); color: #fff; }

/* ---------- tags ---------- */
.tag-row { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; }
.tag-pill {
  --c: var(--accent);
  display: inline-block; font-size: 11px; font-weight: 600; padding: 1px 8px; border-radius: 99px;
  background: color-mix(in srgb, var(--c) 18%, var(--panel)); color: color-mix(in srgb, var(--c) 75%, var(--text));
  border: 1px solid color-mix(in srgb, var(--c) 40%, transparent);
}
.tag-picker { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.tag-toggle {
  --c: var(--accent);
  font: inherit; font-size: 13px; cursor: pointer; padding: 3px 11px; border-radius: 99px;
  border: 1px solid color-mix(in srgb, var(--c) 50%, var(--border)); background: var(--panel); color: var(--text);
}
.tag-toggle::before { content: ""; display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--c); margin-right: 6px; }
.tag-toggle.on { background: color-mix(in srgb, var(--c) 22%, var(--panel)); border-color: var(--c); font-weight: 600; }
.tag-toggle:disabled { cursor: default; }
.new-tag { display: inline-flex; gap: 4px; align-items: center; }
.new-tag input:not([type=color]) { width: 140px; padding: 4px 8px; }
.new-tag input[type=color] { height: 30px; width: 36px; }

/* ---------- holidays ---------- */
.cell.holiday { background: color-mix(in srgb, var(--h) 9%, var(--panel)); }
.cell.holiday:hover { background: color-mix(in srgb, var(--h) 15%, var(--panel)); }
.hol {
  --c: var(--danger);
  font-size: 11px; font-weight: 700; color: color-mix(in srgb, var(--c) 80%, var(--text));
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.holiday-banner {
  --c: var(--danger);
  border-radius: 8px; padding: 8px 10px; margin-bottom: 8px;
  background: color-mix(in srgb, var(--c) 14%, var(--panel)); border: 1px solid color-mix(in srgb, var(--c) 40%, transparent);
}
.holiday-row { display: flex; gap: 10px; align-items: center; padding: 6px 0; border-bottom: 1px solid var(--border); }
.holiday-row:last-child { border-bottom: 0; }
.swatch { --c: var(--accent); width: 14px; height: 14px; border-radius: 4px; background: var(--c); flex: none; }
.rule-row { margin: 3px 0; }
.rule-row select:disabled { opacity: .45; }
.holiday-preview ul { margin: 4px 0 0; padding-left: 20px; }
.mini-grid .hd { background: color-mix(in srgb, var(--c) 35%, var(--panel)); font-weight: 700; }
.tl-card.holiday { box-shadow: none; cursor: default; background: color-mix(in srgb, var(--c) 8%, var(--panel)); border-style: dashed; }
.tl-card.holiday:hover { border-color: var(--border); }
.tl-item.holiday .tl-dot { border-radius: 2px; transform: rotate(45deg); }
.tl-card .tl-title { border-left: 3px solid var(--c, transparent); padding-left: 7px; margin-left: -10px; }
.tl-meta { align-items: center; }