:root {
  --color-bg: #f7efe4;
  --color-surface: #fffaf2;
  --color-surface-strong: #f2dfc7;
  --color-text: #4b3828;
  --color-muted: #8a705d;
  --color-border: #e5cfb8;
  --color-accent: #b87445;
  --color-accent-dark: #8f5732;
  --color-weekend: #fff0e0;
  --color-today: #f3c979;
  --color-selected: #7c4f35;
  --shadow-soft: 0 16px 40px rgba(86, 56, 31, 0.12);
  --shadow-card: 0 8px 22px rgba(86, 56, 31, 0.1);
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --content-width: 1120px;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--color-text);
  background:
    linear-gradient(180deg, rgba(255, 250, 242, 0.84), rgba(247, 239, 228, 0.96)),
    var(--color-bg);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-header,
.week-panel,
.workspace,
.month-view,
.view-placeholder,
.settings-view {
  width: min(100% - 32px, var(--content-width));
  margin-inline: auto;
}

[hidden] {
  display: none !important;
}

.app-header {
  display: grid;
  grid-template-columns: minmax(250px, 1fr) auto minmax(250px, 1fr);
  grid-template-areas:
    "views title user"
    ". controls controls";
  align-items: end;
  gap: 20px;
  padding: 34px 0 20px;
}

.header-title {
  grid-area: title;
  text-align: center;
}

.header-title h1,
.workspace-header h2 {
  margin: 0;
  letter-spacing: 0;
}

.header-title h1 {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  line-height: 1;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.week-controls {
  grid-area: controls;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 8px;
  max-width: 520px;
  justify-self: end;
}

.user-panel {
  grid-area: user;
  justify-self: end;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.current-user {
  max-width: 180px;
  overflow: hidden;
  color: var(--color-muted);
  font-size: 0.88rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.week-buttons {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.view-switcher {
  grid-area: views;
  justify-self: start;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(255, 250, 242, 0.78);
  box-shadow: 0 5px 14px rgba(86, 56, 31, 0.08);
}

.view-button {
  min-height: 36px;
  border: 0;
  border-radius: 8px;
  padding: 0 14px;
  color: var(--color-muted);
  background: transparent;
  transition: color 160ms ease, background-color 160ms ease, transform 160ms ease;
}

.view-button:hover,
.view-button:focus-visible {
  color: var(--color-text);
  background: #fff0e0;
  outline: none;
}

.view-button.is-active {
  color: #fffaf2;
  background: var(--color-selected);
}

.control-button,
.add-button {
  min-height: 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0 16px;
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: 0 5px 14px rgba(86, 56, 31, 0.08);
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.control-button:hover,
.add-button:hover {
  transform: translateY(-1px);
  border-color: var(--color-accent);
}

.control-button.is-primary,
.add-button {
  border-color: transparent;
  color: #fffaf2;
  background: var(--color-accent);
}

.control-button.is-primary:hover,
.add-button:hover {
  background: var(--color-accent-dark);
}

.week-range {
  margin: 0;
  color: var(--color-muted);
  text-align: right;
}

.week-panel {
  display: grid;
  grid-template-columns: repeat(7, minmax(118px, 1fr));
  gap: 12px;
  padding: 12px;
  overflow-x: auto;
  background: rgba(255, 250, 242, 0.58);
  border: 1px solid rgba(229, 207, 184, 0.72);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
}

.day-card {
  min-width: 118px;
  min-height: 164px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 10px;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.day-card:hover,
.day-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  outline: none;
}

.day-card.is-weekend {
  background: var(--color-weekend);
}

.day-card.is-today {
  border-color: var(--color-today);
  box-shadow: 0 0 0 3px rgba(243, 201, 121, 0.28), var(--shadow-card);
}

.day-card.is-selected {
  color: #fffaf2;
  border-color: var(--color-selected);
  background: var(--color-selected);
}

.day-card.is-drop-target {
  transform: translateY(-3px);
  border-color: var(--color-accent);
  background: #fff2df;
  box-shadow: 0 0 0 4px rgba(184, 116, 69, 0.2), var(--shadow-card);
}

.day-card.is-drop-target .day-name,
.day-card.is-drop-target .day-month,
.day-card.is-drop-target .day-task-stat {
  color: var(--color-muted);
}

.day-card.is-drop-target .day-number {
  color: var(--color-text);
}

.day-card.is-selected .day-name,
.day-card.is-selected .day-month,
.day-card.is-selected .day-task-stat {
  color: rgba(255, 250, 242, 0.78);
}

.day-name {
  color: var(--color-muted);
  font-weight: 700;
}

.day-number {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
}

.day-month {
  color: var(--color-muted);
  font-size: 0.88rem;
  text-transform: lowercase;
}

.day-task-stats {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.day-task-stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--color-muted);
  font-size: 0.78rem;
  line-height: 1.2;
}

.day-task-stat strong {
  color: var(--color-text);
  font-size: 0.84rem;
}

.day-task-stat.is-overdue strong {
  color: #b84332;
}

.day-card.is-selected .day-task-stat strong {
  color: #fffaf2;
}

.day-card.is-selected .day-task-stat.is-overdue strong {
  color: #ffd9d2;
}

.workspace {
  margin-top: 22px;
  padding: 24px;
  border: 1px solid rgba(229, 207, 184, 0.86);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.month-view {
  margin-top: 22px;
  padding: 24px;
  border: 1px solid rgba(229, 207, 184, 0.86);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.month-view-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.month-view-header h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  text-transform: capitalize;
}

.month-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.month-nav-button,
.month-today-button {
  min-height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: var(--color-surface);
  box-shadow: 0 5px 14px rgba(86, 56, 31, 0.08);
  transition: transform 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.month-nav-button {
  width: 42px;
  padding: 0;
  font-size: 1.1rem;
}

.month-today-button {
  padding: 0 16px;
  color: #fffaf2;
  border-color: transparent;
  background: var(--color-accent);
}

.month-nav-button:hover,
.month-nav-button:focus-visible,
.month-today-button:hover,
.month-today-button:focus-visible {
  transform: translateY(-1px);
  border-color: var(--color-accent);
  outline: none;
}

.month-today-button:hover,
.month-today-button:focus-visible {
  background: var(--color-accent-dark);
}

.month-weekdays {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 10px;
  color: var(--color-muted);
  font-weight: 800;
  text-align: center;
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 10px;
}

.month-empty-cell,
.month-day-card {
  min-height: 138px;
}

.month-day-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.month-day-card:hover,
.month-day-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  box-shadow: 0 10px 24px rgba(86, 56, 31, 0.14);
  outline: none;
}

.month-day-card.is-weekend {
  background: var(--color-weekend);
}

.month-day-card.is-today {
  border-color: var(--color-today);
  box-shadow: 0 0 0 3px rgba(243, 201, 121, 0.22), var(--shadow-card);
}

.month-day-card.is-today:hover,
.month-day-card.is-today:focus-visible {
  border-color: var(--color-today);
  box-shadow: 0 0 0 3px rgba(243, 201, 121, 0.3), 0 10px 24px rgba(86, 56, 31, 0.14);
}

.month-day-card.is-selected {
  color: #fffaf2;
  border-color: var(--color-selected);
  background: var(--color-selected);
}

.month-day-card.is-outside-month {
  opacity: 0.58;
  background: #fffdf8;
}

.month-day-card.is-outside-month:hover,
.month-day-card.is-outside-month:focus-visible {
  opacity: 0.82;
}

.month-day-card.is-outside-month.is-selected {
  opacity: 1;
}

.month-day-number {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
}

.month-day-name {
  color: var(--color-muted);
  font-size: 0.82rem;
  text-transform: lowercase;
}

.month-task-stats {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.month-task-stat {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--color-muted);
  font-size: 0.72rem;
  line-height: 1.2;
}

.month-task-stat strong {
  color: var(--color-text);
}

.month-task-stat.is-overdue strong {
  color: #b84332;
  font-weight: 800;
}

.month-task-stat.is-overdue {
  color: #8d2f22;
}

.month-day-card.is-selected .month-day-name,
.month-day-card.is-selected .month-task-stat {
  color: rgba(255, 250, 242, 0.78);
}

.month-day-card.is-selected .month-task-stat strong {
  color: #fffaf2;
}

.month-day-card.is-selected .month-task-stat.is-overdue strong {
  color: #ffd9d2;
}

.view-placeholder {
  margin-top: 22px;
  min-height: 320px;
  padding: 28px;
  border: 1px solid rgba(229, 207, 184, 0.86);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.view-placeholder h2 {
  margin: 0 0 12px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
}

.view-placeholder p:last-child {
  margin: 0;
  color: var(--color-muted);
}

.workspace-header {
  margin-bottom: 20px;
}

.workspace-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.35rem);
}

.task-form {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}

.task-form input {
  flex: 1;
  min-width: 0;
  min-height: 48px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0 14px;
  color: var(--color-text);
  background: #fffdf8;
  outline: none;
}

.task-form input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(184, 116, 69, 0.16);
}

.tasks-list {
  min-height: 180px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px;
  background: #fffdf8;
}

.task-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  box-shadow: 0 6px 16px rgba(86, 56, 31, 0.08);
  cursor: grab;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

.task-card:hover {
  transform: translateY(-1px);
  border-color: var(--color-accent);
}

.task-card:active {
  cursor: grabbing;
}

.task-card.is-dragging {
  opacity: 0.48;
  transform: scale(0.99);
}

.task-card.is-overdue {
  border-color: #d67561;
  background: #fff1ee;
  box-shadow: 0 6px 18px rgba(166, 73, 55, 0.14);
}

.task-checkbox {
  width: 20px;
  height: 20px;
  margin: 2px 0 0;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.task-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.task-text {
  min-width: 0;
  margin: 0;
  line-height: 1.45;
  word-break: break-word;
  cursor: text;
  border-radius: 6px;
}

.task-text:focus-visible {
  outline: 2px solid rgba(184, 116, 69, 0.32);
  outline-offset: 3px;
}

.task-card.is-completed .task-text {
  color: var(--color-muted);
  text-decoration: line-through;
}

.task-edit-input {
  width: 100%;
  min-width: 0;
  min-height: 38px;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  padding: 0 10px;
  color: var(--color-text);
  background: #fffdf8;
  outline: none;
  box-shadow: 0 0 0 3px rgba(184, 116, 69, 0.14);
}

.overdue-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.overdue-badge {
  width: fit-content;
  border-radius: 999px;
  padding: 3px 9px;
  color: #8d2f22;
  background: #ffd9d2;
  font-size: 0.78rem;
  font-weight: 700;
}

.overdue-details {
  color: #8d2f22;
  font-size: 0.84rem;
  font-weight: 600;
}

.task-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.move-task,
.copy-task,
.delete-task {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0;
  color: var(--color-accent-dark);
  background: #fff7ed;
  cursor: pointer;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.move-task svg,
.copy-task svg,
.delete-task svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}

.move-task,
.copy-task {
  color: var(--color-text);
  background: #fffdf8;
}

.move-task:hover,
.move-task:focus-visible,
.copy-task:hover,
.copy-task:focus-visible,
.delete-task:hover,
.delete-task:focus-visible {
  border-color: var(--color-accent);
  background: #fff0e0;
  outline: none;
}

.move-calendar {
  position: fixed;
  inset: 50% auto auto 50%;
  z-index: 20;
  width: min(328px, calc(100vw - 32px));
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: 0 22px 60px rgba(86, 56, 31, 0.24);
  transform: translate(-50%, -50%);
}

.calendar-header {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) 38px;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.calendar-title {
  margin: 0;
  font-weight: 800;
  text-align: center;
  text-transform: capitalize;
}

.calendar-nav,
.calendar-day {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  background: #fffdf8;
}

.calendar-nav {
  width: 38px;
  height: 34px;
}

.calendar-weekdays,
.calendar-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.calendar-weekdays {
  margin-bottom: 8px;
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: center;
}

.calendar-day,
.calendar-empty {
  min-width: 0;
  aspect-ratio: 1;
}

.calendar-day {
  font-weight: 700;
  transition: border-color 160ms ease, background-color 160ms ease, color 160ms ease;
}

.calendar-day:hover,
.calendar-day:focus-visible {
  border-color: var(--color-accent);
  background: #fff0e0;
  outline: none;
}

.calendar-day.is-today {
  border-color: var(--color-today);
  box-shadow: 0 0 0 2px rgba(243, 201, 121, 0.28);
}

.calendar-day.is-task-date {
  border-color: var(--color-selected);
  color: #fffaf2;
  background: var(--color-selected);
}

.empty-state {
  margin: 0;
  color: var(--color-muted);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.auth-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.auth-card,
.settings-panel {
  width: min(100%, 420px);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 28px;
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.auth-card {
  display: grid;
  gap: 14px;
}

.auth-card h1,
.settings-panel h2 {
  margin: 0;
  letter-spacing: 0;
}

.auth-card h1 {
  font-size: 2rem;
  line-height: 1.08;
}

.field-label {
  display: block;
  margin: 8px 0 -4px;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.auth-card input,
.password-form input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0 12px;
  color: var(--color-text);
  background: #fffdf8;
}

.auth-card input:focus,
.password-form input:focus {
  border-color: var(--color-accent);
  outline: 2px solid rgba(184, 116, 69, 0.18);
}

.app-message,
.form-message {
  margin: 0;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.88rem;
  line-height: 1.4;
}

.app-message {
  width: min(100% - 32px, var(--content-width));
  margin: 0 auto 12px;
}

.form-message.is-error,
.app-message.is-error {
  color: #7b261c;
  background: #ffe5df;
}

.form-message.is-success,
.app-message.is-success {
  color: #285d33;
  background: #e1f3df;
}

.app-message.is-info {
  color: var(--color-text);
  background: var(--color-weekend);
}

.settings-view {
  padding: 24px 0 48px;
}

.settings-panel {
  margin-inline: auto;
}

.password-form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

@media (max-width: 768px) {
  .app-header {
    grid-template-columns: 1fr;
    grid-template-areas:
      "title"
      "views"
      "user"
      "controls";
    align-items: stretch;
    padding-top: 24px;
  }

  .week-controls {
    align-items: flex-start;
    justify-content: flex-start;
    max-width: none;
    justify-self: stretch;
  }

  .week-buttons {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .view-switcher {
    width: fit-content;
    flex-wrap: wrap;
  }

  .user-panel {
    justify-self: stretch;
    justify-content: space-between;
  }

  .week-range {
    text-align: left;
  }

  .week-panel {
    grid-auto-flow: column;
    grid-auto-columns: minmax(122px, 42vw);
    grid-template-columns: none;
    scroll-snap-type: x proximity;
  }

  .month-view-header {
    align-items: stretch;
    flex-direction: column;
  }

  .month-controls {
    flex-wrap: wrap;
  }

  .month-weekdays {
    gap: 6px;
    font-size: 0.78rem;
  }

  .month-grid {
    gap: 8px;
  }

  .month-day-card {
    min-height: 126px;
    padding: 10px;
  }

  .month-day-number {
    font-size: 1.65rem;
  }

  .month-task-stat {
    gap: 5px;
    font-size: 0.66rem;
  }

  .day-card {
    scroll-snap-align: start;
  }

  .task-form {
    flex-direction: column;
  }

  .add-button {
    width: 100%;
  }

  .task-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .task-actions {
    grid-column: 2;
    justify-self: start;
    flex-wrap: wrap;
  }
}

@media (max-width: 560px) {
  .month-view {
    padding: 16px;
  }

  .month-controls {
    width: 100%;
  }

  .month-nav-button,
  .month-today-button {
    min-height: 44px;
  }

  .month-today-button {
    flex: 1;
  }

  .month-weekdays {
    display: none;
  }

  .month-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .month-day-card {
    min-height: 142px;
  }

  .month-day-number {
    font-size: 1.9rem;
  }

  .month-task-stat {
    font-size: 0.72rem;
  }
}