:root {
  color-scheme: light;
  --bg: #f7f8f5;
  --panel: #ffffff;
  --text: #1f2a24;
  --muted: #68756c;
  --border: #dfe5df;
  --empty: #e7ece7;
  --empty-hover: #d9e2d9;
  --green: #2f9e55;
  --green-dark: #1f7a3f;
  --today: #f59e0b;
  --today-bg: #fff7ed;
  --today-hover: #ffedd5;
  --danger: #9a3412;
  --danger-bg: #fff4ed;
  --focus: #14532d;
  --cell: clamp(13px, 1.12vw, 17px);
  --gap: 4px;
  --label-width: 34px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

button,
input,
select {
  font: inherit;
}

.is-hidden {
  display: none !important;
}

.page {
  width: min(1440px, calc(100% - 28px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 24px 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px 24px;
  margin-bottom: 16px;
}

.brand {
  min-width: 0;
}

.account-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.account-actions {
  display: flex;
  gap: 8px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
  line-height: 1.08;
}

.active-task-title {
  margin: 6px 0 0;
  max-width: 520px;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  font-weight: 600;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

h2 {
  font-size: 1rem;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
  margin-bottom: 16px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--panel);
}

.control-group {
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  gap: 6px;
}

.task-group {
  flex: 1 1 360px;
}

/* Separadores verticales entre los grupos de la barra. */
.year-actions,
.data-actions {
  padding-left: 16px;
  border-left: 1px solid var(--border);
}

.select-field,
.year-field {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  font-size: 0.9rem;
}

.select-field {
  flex: 1 1 220px;
  max-width: 320px;
}

.select-field select {
  min-width: 0;
  width: 100%;
  border: 0;
  outline: 0;
  color: var(--text);
  background: transparent;
}

.year-field input {
  width: 74px;
  border: 0;
  outline: 0;
  color: var(--text);
  background: transparent;
}

.button {
  min-height: 38px;
  padding: 0 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
}

.text-button {
  min-height: auto;
  width: fit-content;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--green-dark);
  cursor: pointer;
  font-size: 0.88rem;
  text-align: left;
}

.text-button:hover {
  text-decoration: underline;
}

.button:hover {
  border-color: #bfcabf;
  background: #fbfcfb;
}

.button-danger {
  border-color: #fed7aa;
  background: var(--danger-bg);
  color: var(--danger);
}

.icon-button {
  width: 38px;
  padding: 0;
  font-size: 1.35rem;
  line-height: 1;
}

.button:focus-visible,
.text-button:focus-visible,
.day-cell:focus-visible,
.tracker-scroll:focus-visible,
.select-field select:focus-visible,
.year-field input:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 28%, transparent);
  outline-offset: 2px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(5, minmax(130px, 1fr));
  gap: 10px;
  margin-bottom: 14px;
}

.auth-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  width: min(100%, 520px);
  margin: 16px auto 24px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
}

.auth-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  align-items: stretch;
  margin-top: 18px;
}

.auth-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.84rem;
}

.auth-form input {
  min-height: 38px;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0 10px;
  background: #fff;
  color: var(--text);
}

.auth-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.auth-message,
.session-label,
.cookie-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.cookie-note {
  margin-top: 14px;
  margin-bottom: 4px;
  line-height: 1.45;
}

.cookie-note a {
  color: var(--green-dark);
}

.auth-message {
  grid-column: 1 / -1;
  min-height: 1.1rem;
}

.session-label {
  max-width: 240px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stat,
.tracker-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
}

.stat {
  min-height: 74px;
  padding: 14px;
}

.stat-label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.82rem;
}

.stat strong {
  display: block;
  font-size: 1.5rem;
  line-height: 1;
}

.tracker-panel {
  padding: 16px;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.muted {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
  color: var(--muted);
  font-size: 0.86rem;
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-box {
  width: 13px;
  height: 13px;
  border-radius: 3px;
  display: inline-block;
  border: 1px solid var(--border);
}

.legend-empty {
  background: var(--empty);
}

.legend-done {
  background: var(--green);
  border-color: var(--green);
}

.legend-today {
  background: var(--today-bg);
  border-color: var(--today);
}

.tracker-scroll {
  max-width: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 2px 2px 10px;
  scrollbar-color: #bfcabf transparent;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.month-labels {
  display: grid;
  gap: var(--gap);
  margin-left: var(--label-width);
  margin-bottom: 8px;
  width: max-content;
  min-width: calc(52 * (var(--cell) + var(--gap)));
  color: var(--muted);
  font-size: 0.78rem;
}

.month-label {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tracker-body {
  display: flex;
  align-items: flex-start;
  width: max-content;
  min-width: calc(var(--label-width) + 52 * (var(--cell) + var(--gap)));
}

.day-labels {
  display: grid;
  grid-template-rows: repeat(7, var(--cell));
  gap: var(--gap);
  width: var(--label-width);
  padding-right: 9px;
  color: var(--muted);
  font-size: 0.74rem;
  line-height: var(--cell);
  text-align: right;
}

.days-grid {
  display: grid;
  grid-template-rows: repeat(7, var(--cell));
  gap: var(--gap);
}

.day-cell {
  width: var(--cell);
  height: var(--cell);
  padding: 0;
  border: 1px solid transparent;
  border-radius: 4px;
  background: var(--empty);
  cursor: pointer;
}

.day-cell:hover {
  background: var(--empty-hover);
}

.day-cell.is-done {
  background: var(--green);
}

.day-cell.is-done:hover {
  background: var(--green-dark);
}

.day-cell.is-today {
  background: var(--today-bg);
  border-color: var(--today);
}

.day-cell.is-today:hover {
  background: var(--today-hover);
}

.day-cell.is-done.is-today {
  background: var(--green);
  border-color: var(--today);
}

.day-cell.is-done.is-today:hover {
  background: var(--green-dark);
  border-color: var(--today);
}

.day-cell.is-outside {
  visibility: hidden;
  pointer-events: none;
}

.last-updated {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.site-footer {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: auto;
  padding: 28px 0 4px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  color: var(--muted);
  transition:
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease,
    background 160ms ease;
}

.social-link:hover {
  border-color: #bfcabf;
  background: #fbfcfb;
  color: var(--text);
  transform: translateY(-1px);
}

.social-link:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--focus) 28%, transparent);
  outline-offset: 2px;
}

.social-link svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

@media (max-width: 980px) {
  :root {
    --cell: 14px;
    --gap: 4px;
    --label-width: 32px;
  }

  .page {
    width: min(100% - 20px, 860px);
    padding: 20px 0;
  }

  .section-head {
    align-items: stretch;
    grid-template-columns: 1fr;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .account-bar {
    justify-content: space-between;
  }

  .legend {
    justify-content: flex-start;
  }

  .toolbar {
    gap: 14px;
  }

  .control-group {
    width: 100%;
  }

  /* En vertical, los separadores estorban: pasan a borde superior suave. */
  .year-actions,
  .data-actions {
    padding-left: 0;
    padding-top: 14px;
    border-left: 0;
    border-top: 1px solid var(--border);
  }

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

  .task-group .select-field {
    max-width: none;
  }

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

  .auth-panel {
    margin-left: auto;
    margin-right: auto;
  }
}

@media (max-width: 560px) {
  .control-group,
  .task-group,
  .year-actions,
  .data-actions {
    width: 100%;
  }

  .task-group {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }

  .task-group .select-field {
    grid-column: 1 / -1;
    max-width: none;
  }

  .year-actions {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) 44px;
    gap: 6px;
  }

  .data-actions {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
  }

  .year-field {
    justify-content: space-between;
  }

  .account-bar {
    flex-wrap: wrap;
    gap: 8px;
  }

  .session-label {
    flex: 1 1 100%;
    max-width: none;
  }

  .account-actions {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .button,
  .icon-button {
    min-height: 40px;
    width: 100%;
    padding: 0 7px;
    font-size: 0.86rem;
    line-height: 1.15;
    white-space: normal;
  }

  .icon-button {
    font-size: 1.15rem;
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }

  .stat {
    min-height: 64px;
    padding: 10px 12px;
  }

  .stat-label {
    margin-bottom: 6px;
    font-size: 0.76rem;
  }

  .stat strong {
    font-size: 1.25rem;
  }

  .stat:last-child {
    grid-column: 1 / -1;
  }

  .site-footer {
    padding-top: 22px;
  }

  .social-link {
    width: 38px;
    height: 38px;
  }

  .auth-panel {
    padding: 18px;
  }

  .auth-actions {
    grid-template-columns: 1fr;
  }
}