:root {
  --bg1: #667eea;
  --bg2: #764ba2;
  --card: rgba(255,255,255,.82);
  --text: #172033;
  --muted: #657086;
  --danger: #ef4444;
  --ok: #22c55e;
  --warn: #f59e0b;
  --shadow: 0 18px 60px rgba(31, 38, 135, .25);
  --radius: 26px;
}
* { box-sizing: border-box; }
html { min-height: 100%; background: linear-gradient(135deg, var(--bg1), var(--bg2)); }
body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255,255,255,.35), transparent 32rem),
    linear-gradient(135deg, var(--bg1), var(--bg2));
}
button, input, textarea, select { font: inherit; }
button { cursor: pointer; border: 0; }
.app-shell { width: min(1080px, 100%); margin: 0 auto; padding: max(16px, env(safe-area-inset-top)) 16px 90px; }
.glass {
  background: var(--card);
  backdrop-filter: blur(22px);
  border: 1px solid rgba(255,255,255,.55);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.hero { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 22px; margin: 8px 0 16px; }
h1 { margin: 0; font-size: clamp(2rem, 7vw, 4.5rem); letter-spacing: -.06em; }
.eyebrow, .subline { margin: 0; color: rgba(23,32,51,.68); }
.logout { color: #fff; text-decoration: none; background: rgba(23,32,51,.75); padding: 12px 16px; border-radius: 999px; white-space: nowrap; }
.composer { padding: 16px; margin-bottom: 14px; }
#todoForm { display: grid; grid-template-columns: 1.6fr .8fr .55fr auto; gap: 12px; align-items: end; }
label { display: grid; gap: 7px; font-weight: 800; color: #26324b; }
textarea, input, select {
  width: 100%; border: 1px solid rgba(101,112,134,.25); border-radius: 18px;
  padding: 13px 14px; outline: none; background: rgba(255,255,255,.78); transition: .2s ease;
}
textarea:focus, input:focus, select:focus { transform: translateY(-1px); border-color: #667eea; box-shadow: 0 0 0 4px rgba(102,126,234,.16); }
.primary, .ghost { border-radius: 18px; padding: 14px 18px; font-weight: 900; transition: .2s ease; }
.primary { color: white; background: linear-gradient(135deg, #667eea, #9f7aea); box-shadow: 0 14px 28px rgba(102,126,234,.32); }
.primary:hover, .ghost:hover, .tab:hover { transform: translateY(-2px); }
.tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; padding: 8px; position: sticky; top: 8px; z-index: 5; }
.tab { padding: 13px 10px; border-radius: 18px; background: transparent; font-weight: 900; color: var(--muted); transition: .2s ease; }
.tab.active { color: #fff; background: rgba(23,32,51,.86); }
.notify { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin: 14px 0; padding: 14px; }
.notify span { color: var(--muted); display: block; font-size: .92rem; }
.ghost { background: rgba(255,255,255,.64); color: #26324b; }
.todo-list { display: grid; gap: 12px; }
.todo-card { position: relative; display: grid; grid-template-columns: 10px 44px 1fr auto; gap: 12px; align-items: center; padding: 15px; border-radius: 24px; background: rgba(255,255,255,.9); box-shadow: 0 12px 34px rgba(20,20,40,.16); animation: slideUp .32s ease both; overflow: hidden; }
.todo-card.overdue { outline: 2px solid rgba(239,68,68,.35); }
.priority-dot { width: 10px; height: 100%; min-height: 58px; border-radius: 99px; background: var(--warn); }
.todo-card.high .priority-dot { background: var(--danger); }
.todo-card.medium .priority-dot { background: var(--warn); }
.todo-card.low .priority-dot { background: var(--ok); }
.check { width: 42px; height: 42px; border-radius: 15px; background: rgba(34,197,94,.12); color: var(--ok); font-weight: 1000; font-size: 1.2rem; }
.desc { margin: 0 0 7px; font-weight: 850; overflow-wrap: anywhere; }
.meta { display: flex; flex-wrap: wrap; gap: 7px; color: var(--muted); font-size: .9rem; }
.pill { padding: 5px 9px; border-radius: 999px; background: rgba(102,126,234,.12); }
.actions { display: flex; gap: 8px; }
.icon-btn { width: 40px; height: 40px; border-radius: 14px; background: rgba(23,32,51,.08); }
.empty { text-align: center; color: white; padding: 36px 14px; font-size: 1.1rem; }
.login-body { display: grid; place-items: center; padding: 16px; }
.login-card { width: min(420px, 100%); padding: 28px; text-align: center; }
.brand { font-size: 3rem; }
.stack { display: grid; gap: 14px; text-align: left; margin-top: 18px; }
.alert { margin: 14px 0; padding: 12px; border-radius: 16px; background: rgba(239,68,68,.13); color: #991b1b; font-weight: 800; }
.login-card small { display:block; margin-top:16px; color:var(--muted); }
.pop-in { animation: popIn .35s cubic-bezier(.2,.9,.25,1.25) both; }
@keyframes popIn { from { opacity: 0; transform: scale(.96) translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@media (max-width: 820px) {
  .hero { align-items: flex-start; }
  #todoForm { grid-template-columns: 1fr; }
  .tabs { bottom: max(10px, env(safe-area-inset-bottom)); top: auto; position: fixed; left: 12px; right: 12px; width: auto; z-index: 10; }
  .tab { font-size: .85rem; padding: 12px 4px; }
  .notify { align-items: stretch; flex-direction: column; }
  .todo-card { grid-template-columns: 8px 40px 1fr; }
  .actions { grid-column: 3; justify-content: flex-end; }
  .logout { padding: 10px 12px; }
}

.header-actions { display: flex; gap: 10px; flex-wrap: wrap; justify-content: flex-end; }
.success { margin: 0 0 14px; padding: 12px; border-radius: 16px; background: rgba(34,197,94,.14); color: #166534; font-weight: 900; }
.user-admin-card { margin-bottom: 14px; }
.user-form { display: grid; grid-template-columns: 1fr 1fr 1fr auto; gap: 12px; align-items: end; }
.hint { color: var(--muted); margin: 14px 2px 0; line-height: 1.45; }
.hint code { background: rgba(23,32,51,.08); padding: 2px 6px; border-radius: 8px; }
.user-list { padding: 18px; }
.user-list h2 { margin: 0 0 14px; }
.user-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.user-table { width: 100%; border-collapse: collapse; min-width: 680px; }
.user-table th, .user-table td { text-align: left; padding: 14px 12px; border-bottom: 1px solid rgba(101,112,134,.18); }
.user-table th { color: #26324b; font-size: .9rem; text-transform: uppercase; letter-spacing: .04em; }
.user-table tr { transition: .18s ease; }
.user-table tbody tr:hover { background: rgba(255,255,255,.5); }
@media (max-width: 820px) {
  .header-actions { width: 100%; justify-content: flex-start; }
  .user-form { grid-template-columns: 1fr; }
  .user-table { min-width: 0; }
  .user-table thead { display: none; }
  .user-table, .user-table tbody, .user-table tr, .user-table td { display: block; width: 100%; }
  .user-table tr { margin-bottom: 12px; border-radius: 18px; background: rgba(255,255,255,.68); padding: 8px; }
  .user-table td { border-bottom: 0; display: flex; justify-content: space-between; gap: 14px; padding: 9px 8px; }
  .user-table td::before { content: attr(data-label); font-weight: 900; color: var(--muted); }
}

.edit-dialog {
  width: min(92vw, 520px);
  border: 0;
  border-radius: 28px;
  padding: 24px;
}

.edit-dialog::backdrop {
  background: rgba(15, 23, 42, .55);
  backdrop-filter: blur(6px);
}

.edit-dialog form {
  display: grid;
  gap: 16px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}