/* ---------- design tokens ---------- */
:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #dbeafe;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --ok: #15803d;
  --ok-soft: #dcfce7;
  --warn: #b45309;
  --warn-soft: #fef3c7;
  --appbar: #1e293b;
  --appbar-text: #f1f5f9;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 4px 16px rgba(15, 23, 42, .06);
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1120; --surface: #111827; --surface-2: #0f172a; --border: #1f2937;
    --border-strong: #334155; --text: #e5e7eb; --muted: #94a3b8; --accent: #3b82f6;
    --accent-hover: #60a5fa; --accent-soft: #1e3a8a; --danger: #f87171; --danger-soft: #450a0a;
    --ok: #4ade80; --ok-soft: #14532d; --warn: #fbbf24; --warn-soft: #451a03;
    --appbar: #020617; --shadow: 0 1px 2px rgba(0,0,0,.4); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b1120; --surface: #111827; --surface-2: #0f172a; --border: #1f2937;
  --border-strong: #334155; --text: #e5e7eb; --muted: #94a3b8; --accent: #3b82f6;
  --accent-hover: #60a5fa; --accent-soft: #1e3a8a; --danger: #f87171; --danger-soft: #450a0a;
  --ok: #4ade80; --ok-soft: #14532d; --warn: #fbbf24; --warn-soft: #451a03;
  --appbar: #020617; --shadow: 0 1px 2px rgba(0,0,0,.4); color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
}
h1, h2, h3 { margin: 0 0 8px; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }
a { color: var(--accent); }
code { font-size: 12px; }
.muted { color: var(--muted); }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ---------- buttons (always a visible resting hit target) ---------- */
.btn, .icon-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--border-strong);
  background: var(--surface-2);
  color: var(--text);
  border-radius: 8px;
  font: inherit; font-weight: 600;
  cursor: pointer;
}
.btn { padding: 7px 14px; text-decoration: none; white-space: nowrap; }
.btn:hover, .icon-btn:hover { background: var(--border); }
.btn:focus-visible, .icon-btn:focus-visible, .tab:focus-visible, .header-btn:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 2px;
}
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-danger { background: var(--danger-soft); border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
/* Shared icon-button hit target: every ×, ✎, 🗑 etc. extends this. */
.icon-btn { width: 30px; height: 30px; padding: 0; font-size: 15px; line-height: 1; }
.icon-btn.danger:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

/* ---------- appbar ---------- */
.appbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 16px; flex-wrap: wrap;
  padding: 8px 20px;
  background: var(--appbar); color: var(--appbar-text);
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 16px; }
.header-btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  color: var(--appbar-text);
  padding: 6px 12px; border-radius: 8px;
  font: inherit; font-weight: 600; cursor: pointer;
}
.header-btn:hover { background: rgba(255,255,255,.16); }
.proj-switch { max-width: 280px; }
#proj-switch-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.caret { font-size: 10px; opacity: .8; }
.tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.tab {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.10);
  color: #cbd5e1; padding: 6px 12px; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer;
  white-space: nowrap;
}
.tab:disabled { opacity: .4; cursor: not-allowed; }
.tab:hover { background: rgba(255,255,255,.14); color: #fff; }
.tab.active { background: #fff; color: #0f172a; border-color: #fff; }
.tab-admin { border-color: rgba(251,191,36,.5); color: #fcd34d; }
.tab-admin.active { background: #fcd34d; border-color: #fcd34d; color: #1e293b; }
.header-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.user-btn img, .avatar-initial {
  width: 24px; height: 24px; border-radius: 50%;
}
.avatar-initial {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent); color: #fff; font-size: 12px;
}
.avatar-initial:empty { display: none; }
.proj-switch-wrap, .user-wrap { position: relative; }

/* ---------- menus ---------- */
.menu {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 30;
  min-width: 240px; max-height: 70vh; overflow: auto;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 10px 30px rgba(0,0,0,.2); padding: 6px;
}
.menu-right { left: auto; right: 0; }
.menu-item {
  display: flex; width: 100%; align-items: center; justify-content: space-between; gap: 10px;
  padding: 8px 10px; margin: 2px 0;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font: inherit; text-align: left; cursor: pointer;
}
.menu-item:hover { background: var(--accent-soft); border-color: var(--accent); }
.menu-item.current { border-color: var(--accent); font-weight: 700; }
.menu-label { padding: 6px 10px; font-size: 12px; color: var(--muted); }
.menu-sep { height: 1px; background: var(--border); margin: 6px 0; }
.role-tag { font-size: 11px; color: var(--muted); font-weight: 600; text-transform: uppercase; }

/* ---------- layout ---------- */
.main { max-width: 1280px; margin: 0 auto; padding: 20px 16px 60px; }
.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px;
}
.panel + .panel { margin-top: 16px; }
.two-col > .panel { margin-top: 0; }
.two-col + .panel { margin-top: 16px; }
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-bottom: 12px; }
.toolbar .spacer { flex: 1; }
.page-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.page-head h2 { margin: 0; font-size: 20px; }

input[type=text], input[type=email], input[type=number], input[type=date], input[type=search],
select, textarea {
  font: inherit; color: var(--text); background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: 8px; padding: 7px 10px;
}
textarea { min-height: 70px; resize: vertical; width: 100%; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }

/* ---------- stat cards ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 16px; }
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px; box-shadow: var(--shadow);
}
.stat .label { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .03em; }
.stat .value { font-size: 22px; font-weight: 700; margin-top: 4px; font-variant-numeric: tabular-nums; }
.stat .sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
.over { color: var(--danger); }
.under { color: var(--ok); }
.bar { height: 6px; background: var(--border); border-radius: 3px; margin-top: 8px; overflow: hidden; }
.bar > span { display: block; height: 100%; background: var(--accent); }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { background: var(--surface-2); font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; white-space: nowrap; }
th.sortable { cursor: pointer; user-select: none; }
th.sortable:hover { color: var(--text); }
tbody tr:hover { background: var(--surface-2); }
tbody tr.clickable { cursor: pointer; }
tfoot td { font-weight: 700; background: var(--surface-2); border-bottom: 0; }
td.actions { white-space: nowrap; text-align: right; width: 1%; }
td.actions .icon-btn + .icon-btn { margin-left: 4px; }
.title-cell strong { display: block; }
.title-cell .sub { font-size: 12px; color: var(--muted); }
.empty { padding: 32px; text-align: center; color: var(--muted); }

.pill { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; white-space: nowrap; background: var(--surface-2); border: 1px solid var(--border); }
.st-idea { color: var(--muted); }
.st-planned { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.st-in_progress { background: var(--warn-soft); color: var(--warn); border-color: transparent; }
.st-on_hold { background: var(--surface-2); color: var(--muted); }
.st-done { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.st-cancelled { color: var(--muted); text-decoration: line-through; }
.st-blocked { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.dep-wait, .dep-ok { display: block; }
.dep-wait { color: var(--danger) !important; }
.dep-ok { color: var(--ok) !important; }
/* dependencies: read-only list in the task form */
.dep-field-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.dep-chips { list-style: none; margin: 0; padding: 0; border: 1px solid var(--border); border-radius: 8px; }
.dep-chips li { display: flex; align-items: center; gap: 8px; padding: 6px 10px; }
.dep-chips li + li { border-top: 1px solid var(--border); }
.dep-chips .dep-title { flex: 1; min-width: 0; }
.dep-chips li.waiting .dep-icon { color: var(--danger); }
.dep-chips .dep-icon { color: var(--ok); width: 16px; text-align: center; }
.dep-none, .dep-needed { margin: 4px 0 0; font-size: 13px; }
.dep-needed { font-size: 12px; }
.dep-loop { margin-left: 8px; font-size: 11px; font-weight: 600; color: var(--warn); background: var(--warn-soft); border-radius: 999px; padding: 1px 7px; white-space: nowrap; }

/* floating window (draggable + resizable popup above the modal) */
.float-win {
  position: fixed; z-index: 70; display: flex; flex-direction: column;
  min-width: 300px; min-height: 220px;
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 12px;
  box-shadow: 0 24px 70px rgba(0,0,0,.45);
  overflow: hidden;
}
.float-win.dragging { opacity: .92; }
.float-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 10px 12px 10px 16px; background: var(--surface-2); border-bottom: 1px solid var(--border);
  cursor: move; user-select: none; touch-action: none;
}
.float-head h3 { margin: 0; font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.float-body { flex: 1; min-height: 0; display: flex; flex-direction: column; gap: 8px; padding: 12px 16px; }
.float-body .dep-filter { width: 100%; }
.float-body .dep-list { flex: 1; min-height: 0; overflow: auto; border: 1px solid var(--border); border-radius: 8px; padding: 2px 10px; }
.float-foot { display: flex; align-items: center; justify-content: flex-end; gap: 8px; padding: 10px 16px; border-top: 1px solid var(--border); }
.float-foot .dep-count { margin-right: auto; font-size: 12px; }
.float-grip {
  position: absolute; right: 0; bottom: 0; width: 18px; height: 18px; cursor: nwse-resize; touch-action: none;
  background: linear-gradient(135deg, transparent 50%, var(--border-strong) 50%, var(--border-strong) 60%, transparent 60%,
    transparent 70%, var(--border-strong) 70%, var(--border-strong) 80%, transparent 80%);
}
.dep-list .dep-item input { width: auto; flex: none; margin: 0; }
.dep-item { display: flex; align-items: center; gap: 8px; padding: 5px 2px; cursor: pointer; font-size: 13px; color: var(--text) !important; font-weight: 400 !important; }
.dep-item + .dep-item { border-top: 1px solid var(--border); }
.dep-item .dep-title { flex: 1; min-width: 0; }
.field .dep-item input { width: auto; flex: none; margin: 0; }
.dep-item[hidden] { display: none; }
.pr-urgent { color: var(--danger); font-weight: 700; }
.pr-high { color: var(--warn); font-weight: 700; }
.pr-low { color: var(--muted); }

/* ---------- forms / modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0; z-index: 50; background: rgba(15,23,42,.55);
  display: flex; align-items: flex-start; justify-content: center; padding: 5vh 16px; overflow: auto;
}
.modal {
  width: 100%; max-width: 640px; background: var(--surface); color: var(--text);
  border-radius: 12px; box-shadow: 0 20px 60px rgba(0,0,0,.35); border: 1px solid var(--border);
}
.modal.wide { max-width: 960px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--border); }
.modal-head h3 { margin: 0; font-size: 17px; }
.modal-body { padding: 16px 18px; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--border); }
.modal-foot .left { margin-right: auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 14px; }
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 12px; font-weight: 600; color: var(--muted); }
.field input, .field select, .field textarea { width: 100%; }
.form-error { color: var(--danger); margin-top: 10px; }
pre.code { white-space: pre-wrap; word-break: break-word; background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px; padding: 10px; max-height: 320px; overflow: auto; font-size: 12px; }

/* ---------- payments ---------- */
.pay-section { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--border); }
.pay-head { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; margin-bottom: 8px; }
.pay-head h3 { margin: 0; }
.pay-head .spacer { flex: 1; }
table.compact th, table.compact td { padding: 6px 8px; }
.quick-pay {
  display: grid; grid-template-columns: 130px 110px 1fr 1fr 110px 110px auto; gap: 8px; align-items: end;
  margin-top: 10px; padding: 10px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 8px;
}
.quick-pay .field input, .quick-pay .field select { width: 100%; }
.quick-pay input:disabled { opacity: .5; }
.sub-num { display: block; font-size: 11px; color: var(--muted); }
.task-list { list-style: none; padding: 0; margin: 0; }
.task-list li { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; padding: 6px 0; border-bottom: 1px solid var(--border); }
.task-list li:last-child { border-bottom: 0; }
.date-range { display: inline-flex; align-items: center; gap: 6px; }
.field input:disabled, .field select:disabled, .field textarea:disabled { opacity: .7; }

/* ---------- import ---------- */
.dropzone {
  display: block;
  border: 2px dashed var(--border-strong); border-radius: var(--radius); padding: 36px 20px;
  text-align: center; background: var(--surface-2); cursor: pointer;
}
.dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone strong { display: block; font-size: 16px; margin-bottom: 4px; }
.warnings { background: var(--warn-soft); color: var(--warn); border-radius: 8px; padding: 10px 14px; margin: 12px 0; }
.warnings ul { margin: 4px 0 0; padding-left: 18px; }
.spinner { width: 18px; height: 18px; border: 3px solid var(--accent-soft); border-top-color: var(--accent); border-radius: 50%; animation: spin 1s linear infinite; display: inline-block; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- members ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.member { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--border); }
.member:last-child { border-bottom: 0; }
.member .who { flex: 1; min-width: 0; }
.member .who .email { font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; }
.member img, .member .avatar-initial { width: 32px; height: 32px; border-radius: 50%; }
.invite-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 12px; }
.invite-row input { flex: 1; min-width: 200px; }

/* ---------- admin ---------- */
.admin { display: grid; grid-template-columns: 200px 1fr; gap: 16px; align-items: start; }
.admin-side { display: flex; flex-direction: column; gap: 4px; padding: 10px; }
.admin-side .heading { font-size: 11px; font-weight: 700; text-transform: uppercase; color: var(--muted); padding: 6px 8px; }
.admin-side button {
  text-align: left; padding: 8px 10px; border-radius: 6px; font: inherit; cursor: pointer;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
}
.admin-side button:hover { border-color: var(--accent); }
.admin-side button.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.admin-content { min-width: 0; }
.badge-admin { background: #fcd34d; color: #1e293b; border-color: transparent; }

/* ---------- welcome ---------- */
.welcome { max-width: 560px; margin: 40px auto; }
.welcome p { color: var(--muted); }

/* ---------- toast ---------- */
.toast {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 60;
  background: var(--text); color: var(--surface); padding: 10px 16px; border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.25); font-weight: 600;
}
.toast.error { background: var(--danger); color: #fff; }

/* ---------- login ---------- */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(160deg, #1e293b, #2563eb); }
.login-shell { width: 100%; padding: 16px; }
.login-card {
  max-width: 420px; margin: 0 auto; background: var(--surface); border-radius: 16px;
  padding: 32px 28px; text-align: center; box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.login-logo { margin-bottom: 8px; }
.login-tagline { color: var(--muted); line-height: 1.5; margin-bottom: 22px; }
.g-signin { display: flex; justify-content: center; min-height: 44px; }
.login-error { background: var(--danger-soft); color: var(--danger); border-radius: 8px; padding: 10px; margin: 12px 0; text-align: left; }
.dev-login { margin-top: 20px; text-align: left; border: 1px solid var(--border); border-radius: 8px; padding: 10px 12px; }
.dev-login summary { cursor: pointer; font-weight: 600; color: var(--muted); }
.dev-login form { display: flex; gap: 8px; margin-top: 10px; }
.dev-login input { flex: 1; min-width: 0; }
.login-note { font-size: 12px; color: var(--muted); margin-top: 22px; line-height: 1.5; }

/* ---------- responsive ---------- */
@media (max-width: 860px) {
  .appbar { padding: 8px 16px; gap: 10px; }
  .header-right { margin-left: auto; }
  #user-name { display: none; }
  .tabs { order: 3; width: 100%; overflow-x: auto; flex-wrap: nowrap; }
  .two-col, .admin { grid-template-columns: 1fr; }
  .admin-side { flex-direction: row; flex-wrap: wrap; }
  .admin-side .heading { width: 100%; }
  .form-grid { grid-template-columns: 1fr; }
  .quick-pay { grid-template-columns: 1fr 1fr; }
  .quick-pay .btn { grid-column: 1 / -1; }
  .hide-sm { display: none; }
}