:root {
  --cream: #fff9f2;
  --cream-2: #fff1e2;
  --surface: #ffffff;
  --text: #2c2620;
  --text-muted: #8c8074;
  --border: #f3e6d8;
  --coral: #ff6f59;
  --coral-dark: #e85a45;
  --blue: #2f80ed;
  --accent: var(--coral);
  --accent-grad: linear-gradient(135deg, #ff6f59, #ff9166);
  --shadow: 0 6px 18px rgba(255, 111, 89, 0.1), 0 2px 6px rgba(44, 38, 32, 0.05);
  --shadow-hover: 0 14px 30px rgba(255, 111, 89, 0.2), 0 4px 10px rgba(44, 38, 32, 0.08);
  --done-bg: #fff9f2;
  --danger: #e0503f;
  --warn: #ff6f59;
  --ok: #2fbf71;
  --radius: 16px;
}

* {
  box-sizing: border-box;
}

/* Guarantee [hidden] always wins, even over display:flex/grid rules below. */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(circle at 15% 0%, var(--cream-2), transparent 55%),
    var(--cream);
  background-attachment: fixed;
  color: var(--text);
}

.app {
  max-width: 1150px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.app-header {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.app-header h1 {
  font-size: 1.8rem;
  margin: 0;
  font-weight: 800;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.01em;
}

.filters {
  display: flex;
  gap: 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem;
  box-shadow: var(--shadow);
}

.filter-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  padding: 0.45rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease;
}

.filter-btn:hover {
  transform: translateY(-1px);
}

.filter-btn.active {
  background: var(--accent-grad);
  color: #fff;
  box-shadow: 0 4px 12px rgba(255, 111, 89, 0.35);
}

.auth-gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.auth-card {
  width: 100%;
  max-width: 26rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem 1.75rem;
  position: relative;
  overflow: hidden;
}

.auth-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--accent-grad);
}

.auth-title {
  margin: 0 0 0.5rem;
  font-size: 1.7rem;
  font-weight: 800;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.01em;
  text-align: center;
}

.auth-tagline {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  font-size: 0.88rem;
  text-align: center;
  line-height: 1.5;
}

.auth-form-gate {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.auth-form-gate input {
  width: 100%;
  padding: 0.65rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--cream);
  color: var(--text);
  font-size: 0.9rem;
}

.auth-form-gate input:focus {
  outline: none;
  border-color: var(--coral);
  box-shadow: 0 0 0 3px rgba(255, 111, 89, 0.18);
}

.auth-actions {
  display: flex;
  gap: 0.6rem;
}

.auth-actions .btn-auth {
  flex: 1;
}

.link-btn {
  display: block;
  margin: 0.9rem auto 0;
  background: none;
  border: none;
  padding: 0;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.link-btn:hover {
  color: var(--coral-dark);
}

.auth-user {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-auth {
  background: var(--accent-grad);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 0.55rem 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-auth:hover {
  transform: translateY(-1px);
}

.btn-auth-secondary {
  background: var(--surface);
  color: var(--coral-dark);
  border: 1px solid var(--border);
  box-shadow: none;
}

.auth-email {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.auth-status {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  color: var(--danger);
  text-align: center;
}

.auth-status.ok {
  color: var(--ok);
}

.add-form {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr 1fr 1fr 1.4fr auto;
  gap: 0.6rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}

.add-form::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--accent-grad);
}

.add-form input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--cream);
  color: var(--text);
  font-size: 0.9rem;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}

.add-form input:focus {
  outline: none;
  border-color: var(--coral);
  box-shadow: 0 0 0 3px rgba(255, 111, 89, 0.18);
}

.btn-add {
  background: var(--accent-grad);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 0.6rem 1.2rem;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  box-shadow: 0 6px 16px rgba(255, 111, 89, 0.35);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-add:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 10px 22px rgba(255, 111, 89, 0.45);
}

.btn-add:active {
  transform: translateY(0) scale(0.98);
}

.table-wrap {
  overflow-x: auto;
  padding-bottom: 0.5rem;
}

.grid-table {
  min-width: 900px;
}

.grid-row {
  display: grid;
  grid-template-columns: 3rem 1.5fr 1fr 1.3fr 1fr 1fr 1.5fr 2.5rem;
  align-items: center;
  gap: 0.5rem;
}

.grid-header {
  padding: 0 0.9rem 0.6rem;
}

.grid-header .cell {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
}

.sort-btn {
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.3rem 0;
  color: var(--text-muted);
  font: inherit;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

.sort-btn:hover {
  color: var(--blue);
}

.sort-btn.sorted {
  color: var(--blue);
}

.sort-arrow {
  font-size: 0.7rem;
  transition: transform 0.2s ease;
  opacity: 0.5;
}

.sort-btn.sorted .sort-arrow {
  opacity: 1;
}

.sort-btn.sorted.dir-desc .sort-arrow {
  transform: rotate(180deg);
}

.grid-body {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.task-row {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.75rem 0.9rem;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.2s ease;
  animation: pop-in 0.25s ease;
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.task-row:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.task-row.done {
  background: var(--done-bg);
  opacity: 0.7;
}

.task-row.done:hover {
  opacity: 1;
}

.cell {
  min-width: 0;
  font-size: 0.9rem;
}

.col-name-cell.done-text {
  text-decoration: line-through;
  color: var(--text-muted);
}

.checkbox-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
}

.checkbox {
  appearance: none;
  width: 1.4rem;
  height: 1.4rem;
  border-radius: 8px;
  border: 2px solid var(--coral);
  cursor: pointer;
  display: grid;
  place-content: center;
  background: var(--surface);
  transition: transform 0.15s ease;
}

.checkbox::before {
  content: "✓";
  font-size: 0.9rem;
  font-weight: 900;
  color: #fff;
  transform: scale(0);
  transition: transform 0.15s ease;
}

.checkbox:checked {
  background: var(--accent-grad);
  border-color: transparent;
  animation: pop 0.3s ease;
}

.checkbox:checked::before {
  transform: scale(1);
}

@keyframes pop {
  0% {
    transform: scale(0.85);
  }
  50% {
    transform: scale(1.2);
  }
  100% {
    transform: scale(1);
  }
}

.cell-editable {
  cursor: text;
  border-radius: 8px;
  padding: 0.3rem 0.4rem;
  margin: -0.3rem -0.4rem;
  min-width: 2rem;
}

.cell-editable:hover {
  background: var(--cream);
}

.cell-editable:focus {
  outline: 2px solid var(--blue);
  background: var(--cream);
}

.cell-editable:empty::before {
  content: attr(data-placeholder);
  color: var(--text-muted);
}

.label-chip {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.label-chip:empty::before {
  content: attr(data-placeholder);
  color: var(--text-muted);
  font-weight: 500;
}

.due-cell {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.due-input {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.3rem 0.4rem;
  background: var(--cream);
  color: var(--text);
  font-size: 0.85rem;
}

.due-input:focus {
  outline: none;
  border-color: var(--blue);
}

.countdown {
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}

.countdown.c-overdue {
  background: rgba(224, 80, 63, 0.15);
  color: var(--danger);
  animation: pulse 1.6s ease-in-out infinite;
}

.countdown.c-today {
  background: rgba(255, 111, 89, 0.16);
  color: var(--coral-dark);
}

.countdown.c-soon {
  background: rgba(47, 128, 237, 0.14);
  color: var(--blue);
}

.countdown.c-later {
  background: rgba(47, 191, 113, 0.15);
  color: var(--ok);
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.55;
  }
}

.col-actions {
  display: flex;
  justify-content: center;
}

.btn-delete {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0.4rem;
  border-radius: 8px;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.btn-delete:hover {
  background: rgba(224, 80, 63, 0.12);
  color: var(--danger);
  transform: scale(1.15) rotate(8deg);
}

.empty-msg {
  text-align: center;
  color: var(--text-muted);
  padding: 3rem 1rem;
  margin: 0;
  font-size: 1rem;
}

.app-footer {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
}

@media (max-width: 900px) {
  .add-form {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .btn-add {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .app {
    padding: 1rem 0.75rem 2.5rem;
  }
  .app-header h1 {
    font-size: 1.5rem;
  }
  .add-form {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 460px) {
  .add-form {
    grid-template-columns: 1fr;
  }
  .filters {
    width: 100%;
    justify-content: space-between;
  }
  .app-header {
    justify-content: center;
    text-align: center;
  }
}

/* ---------- compact task cards on mobile ---------- */
@media (max-width: 700px) {
  .table-wrap {
    overflow-x: visible;
    padding-bottom: 0;
  }
  .grid-table {
    min-width: 0;
  }
  .grid-header {
    display: none;
  }
  .grid-body {
    gap: 0.55rem;
  }

  .task-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0 0.6rem;
    padding: 0.7rem 2.1rem 0.7rem 0.8rem;
    cursor: pointer;
    position: relative;
  }
  .task-row::after {
    content: "";
    position: absolute;
    right: 1rem;
    top: 1.15rem;
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
    transition: transform 0.2s ease;
  }
  .task-row.expanded::after {
    transform: rotate(-135deg);
    top: 1.35rem;
  }

  .task-row .col-done {
    order: 1;
    flex: 0 0 auto;
  }
  .task-row .cell-name {
    order: 2;
    flex: 1 1 auto;
    min-width: 0;
  }
  .task-row .cell-name .cell-editable {
    font-weight: 700;
  }
  .task-row .due-cell {
    order: 3;
    flex: 0 0 100%;
    margin: 0.3rem 0 0 2.15rem;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
  }
  .task-row .due-cell .due-input {
    display: none;
  }
  .task-row .due-cell .countdown {
    align-self: auto;
  }

  .task-row .cell-label,
  .task-row .cell-person,
  .task-row .cell-place,
  .task-row .cell-notes,
  .task-row .col-actions {
    display: none;
    order: 4;
    flex: 1 1 100%;
    margin-left: 2.15rem;
    margin-top: 0.4rem;
  }
  .task-row.expanded .cell-label,
  .task-row.expanded .cell-person,
  .task-row.expanded .cell-place,
  .task-row.expanded .cell-notes {
    display: block;
  }
  .task-row.expanded .due-cell .due-input {
    display: block;
  }
  .task-row.expanded .col-actions {
    display: flex;
    justify-content: flex-start;
    margin-left: 2.15rem;
  }
  .task-row.expanded .col-actions .btn-delete {
    background: rgba(224, 80, 63, 0.1);
    color: var(--danger);
  }
}