:root {
  color-scheme: light;
  --canvas: #f7f5ef;
  --surface: #ffffff;
  --surface-muted: #eeece5;
  --ink: #20231f;
  --muted: #6c7068;
  --line: #deddd6;
  --accent: #245c45;
  --accent-strong: #174432;
  --accent-soft: #dbeadf;
  --danger: #9d342d;
  --danger-soft: #f6e2de;
  --shadow: 0 12px 32px rgb(32 35 31 / 8%);
  --radius-small: 0.7rem;
  --radius: 1.1rem;
  --radius-large: 1.6rem;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  line-height: 1.5;
  background: var(--canvas);
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 0 0, rgb(255 255 255 / 80%), transparent 28rem),
    var(--canvas);
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0.25rem;
  font-size: clamp(2rem, 9vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

h2,
h3 {
  line-height: 1.2;
  letter-spacing: -0.02em;
}

:focus-visible {
  outline: 3px solid #e28f2d;
  outline-offset: 3px;
}

.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;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0.5rem;
  left: 0.5rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-small);
  background: var(--ink);
  color: white;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  height: 4.5rem;
  padding: 0 1.1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 44px;
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.brand__mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 0.65rem;
  background: var(--accent);
  color: white;
}

.account-name {
  max-width: 9rem;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.page {
  width: min(100% - 2rem, 46rem);
  margin: 0 auto;
  padding: 1rem 0 7.5rem;
}

.page--auth {
  width: min(100% - 2rem, 28rem);
  padding-bottom: 3rem;
}

.page-heading {
  margin-bottom: 2rem;
}

.page-heading__row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
}

.eyebrow {
  margin-bottom: 0.55rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.subtle,
.help-text {
  color: var(--muted);
}

.subtle {
  margin-bottom: 0;
}

.progress-number {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 1.2rem;
  font-weight: 800;
}

.progress-track {
  height: 0.5rem;
  margin-top: 1.1rem;
  overflow: hidden;
  border-radius: 999px;
  background: var(--surface-muted);
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
  transition: width 180ms ease;
}

.primary-nav {
  position: fixed;
  z-index: 20;
  right: 0;
  bottom: 0;
  left: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 0.45rem max(0.5rem, env(safe-area-inset-right))
    calc(0.45rem + env(safe-area-inset-bottom))
    max(0.5rem, env(safe-area-inset-left));
  border-top: 1px solid var(--line);
  background: rgb(255 255 255 / 94%);
  box-shadow: 0 -8px 24px rgb(32 35 31 / 7%);
  backdrop-filter: blur(12px);
}

.primary-nav a,
.primary-nav__logout button {
  display: flex;
  width: 100%;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.1rem;
  border-radius: var(--radius-small);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  text-decoration: none;
}

.primary-nav__logout {
  margin: 0;
}

.primary-nav__logout button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
}

.primary-nav a[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-strong);
}

.primary-nav__icon {
  font-size: 1.2rem;
  line-height: 1;
}

.activity-stack,
.management-list {
  display: grid;
  gap: 0.8rem;
}

.activity-card {
  position: relative;
  display: grid;
  min-height: 5.6rem;
  grid-template-columns: 0.4rem minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 3px 12px rgb(32 35 31 / 4%);
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.activity-card__accent {
  align-self: stretch;
  background: var(--activity-color);
}

.activity-card__content {
  padding: 1rem 0;
}

.activity-card h2 {
  margin-bottom: 0.25rem;
  font-size: 1.05rem;
}

.streak-count {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.activity-card.is-complete {
  border-color: #b8d2bf;
  background: #f5faf6;
}

.activity-card form {
  padding-right: 1rem;
}

.completion-button {
  display: grid;
  width: 3rem;
  height: 3rem;
  place-items: center;
  border: 2px solid #b8bbb4;
  border-radius: 50%;
  background: white;
  color: transparent;
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: 900;
  transition: background 140ms ease, border-color 140ms ease, color 140ms ease,
    transform 140ms ease;
}

.completion-button:active {
  transform: scale(0.92);
}

.completion-button[aria-pressed="true"] {
  border-color: var(--accent);
  background: var(--accent);
  color: white;
}

.completion-button[aria-busy="true"] {
  cursor: wait;
  opacity: 0.6;
}

.button,
.icon-button,
.small-icon-button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: var(--radius-small);
  cursor: pointer;
  font-weight: 750;
  text-decoration: none;
}

.button {
  padding: 0.7rem 1rem;
}

.button--primary {
  background: var(--accent);
  color: white;
}

.button--primary:hover {
  background: var(--accent-strong);
}

.button--quiet {
  background: var(--surface-muted);
  color: var(--ink);
}

.button--danger {
  background: var(--danger);
  color: white;
}

.text-link,
.danger-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-weight: 700;
  text-underline-offset: 0.2em;
}

.danger-link {
  margin-top: 1rem;
  color: var(--danger);
}

.empty-state,
.confirmation-card {
  padding: 2.25rem 1.25rem;
  border: 1px dashed #c8c8bf;
  border-radius: var(--radius-large);
  background: rgb(255 255 255 / 55%);
  text-align: center;
}

.empty-state h2,
.confirmation-card h1 {
  margin-bottom: 0.5rem;
}

.empty-state p,
.confirmation-card p {
  max-width: 30rem;
  margin-right: auto;
  margin-bottom: 1.25rem;
  margin-left: auto;
  color: var(--muted);
}

.empty-state__mark,
.confirmation-card__mark {
  display: grid;
  width: 3.5rem;
  height: 3.5rem;
  margin: 0 auto 1rem;
  place-items: center;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.8rem;
}

.empty-state--compact {
  padding: 1.25rem;
}

.empty-state--compact p {
  margin-bottom: 0;
}

.calendar-heading {
  text-align: center;
}

.month-navigation {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 0.5rem;
}

.month-navigation h1 {
  font-size: clamp(1.8rem, 8vw, 2.8rem);
}

.month-navigation h1 span {
  color: var(--muted);
  font-weight: 450;
}

.icon-button {
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 1.2rem;
}

.calendar {
  padding: 0.65rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.calendar-weekdays,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.calendar-weekdays span {
  padding: 0.4rem 0 0.7rem;
  color: var(--muted);
  font-size: clamp(0.58rem, 2.7vw, 0.72rem);
  font-weight: 800;
  text-align: center;
  text-transform: uppercase;
}

.calendar-day {
  position: relative;
  display: flex;
  min-width: 0;
  min-height: 3.3rem;
  align-items: center;
  justify-content: flex-start;
  flex-direction: column;
  gap: 0.35rem;
  padding: 0.4rem 0.1rem;
  border: 1px solid transparent;
  border-radius: 0.65rem;
  color: var(--ink);
  text-decoration: none;
}

.calendar-day:hover {
  background: var(--surface-muted);
}

.calendar-day.is-outside {
  color: #bbbcb6;
}

.calendar-day.is-today {
  border-color: var(--accent);
}

.calendar-day.is-today .calendar-day__number {
  color: var(--accent-strong);
  font-weight: 900;
}

.calendar-day__number {
  line-height: 1.2;
}

.calendar-day__markers {
  display: flex;
  min-height: 0.4rem;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
}

.calendar-day__markers span {
  display: block;
  width: 0.34rem;
  height: 0.34rem;
  border-radius: 50%;
  background: var(--activity-color);
}

.day-history {
  margin-top: 2rem;
}

.section-heading h2,
.archived-section > h2 {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.history-day {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 1rem;
}

.history-day time {
  display: flex;
  align-items: center;
  flex-direction: column;
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
}

.history-day time strong {
  color: var(--ink);
  font-size: 1.25rem;
}

.history-day ul {
  display: grid;
  gap: 0.4rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.history-day li {
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.activity-dot {
  display: inline-block;
  width: 0.65rem;
  height: 0.65rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--activity-color);
}

.activity-dot--large {
  width: 0.9rem;
  height: 0.9rem;
}

.management-card {
  display: grid;
  min-height: 4.8rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 0.8rem 0.8rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.management-card__content h2,
.management-card__content h3 {
  margin-bottom: 0.15rem;
  font-size: 1rem;
}

.management-card__content span {
  color: var(--muted);
  font-size: 0.78rem;
}

.management-card__actions {
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.small-icon-button {
  min-width: 44px;
  padding: 0.45rem;
  background: transparent;
  color: var(--muted);
  font-size: 0.78rem;
}

.small-icon-button:hover {
  background: var(--surface-muted);
  color: var(--ink);
}

.is-archived {
  opacity: 0.72;
}

.archived-section {
  margin-top: 2.5rem;
}

.form-card {
  display: grid;
  gap: 1.25rem;
  padding: 1.25rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-large);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.form-field {
  display: grid;
  gap: 0.45rem;
}

.form-field label {
  font-weight: 800;
}

.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="password"] {
  width: 100%;
  min-height: 48px;
  padding: 0.7rem 0.8rem;
  border: 1px solid #b9bbb4;
  border-radius: var(--radius-small);
  background: white;
  color: var(--ink);
}

.form-field input[type="text"]:focus,
.form-field input[type="email"]:focus,
.form-field input[type="password"]:focus {
  border-color: var(--accent);
}

.auth-card h1 {
  margin-bottom: 0.6rem;
  font-size: clamp(2rem, 9vw, 2.8rem);
}

.auth-card__intro {
  margin-bottom: 0;
  color: var(--muted);
}

.auth-card .button--primary {
  width: 100%;
}

.auth-links {
  display: flex;
  justify-content: center;
  margin: 0;
}

.auth-links a {
  min-height: 44px;
  align-content: center;
  color: var(--accent-strong);
  font-weight: 700;
  text-underline-offset: 0.2em;
}

.form-field--color {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.form-field--color .field-errors {
  grid-column: 1 / -1;
}

.form-field input[type="color"] {
  width: 4rem;
  height: 3rem;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-small);
  background: white;
}

.help-text {
  margin-bottom: 0;
  font-size: 0.8rem;
}

.field-errors,
.form-errors {
  color: var(--danger);
  font-size: 0.84rem;
}

.field-errors ul,
.form-errors ul {
  padding-left: 1.2rem;
  margin: 0;
}

.form-actions,
.confirmation-card form {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
}

.toast {
  position: fixed;
  z-index: 40;
  right: 1rem;
  bottom: 5.5rem;
  left: 1rem;
  max-width: 28rem;
  padding: 0.8rem 1rem;
  margin: 0 auto;
  border-radius: var(--radius-small);
  background: var(--ink);
  color: white;
  opacity: 0;
  pointer-events: none;
  text-align: center;
  transform: translateY(0.5rem);
  transition: opacity 140ms ease, transform 140ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.toast.is-error {
  background: var(--danger);
}

@media (min-width: 48rem) {
  .site-header {
    width: min(100% - 3rem, 64rem);
    margin: 0 auto;
    padding: 0;
  }

  .page {
    width: min(100% - 3rem, 52rem);
    padding-top: 2rem;
    padding-bottom: 5rem;
  }

  .primary-nav {
    top: 0.65rem;
    right: max(1.5rem, calc((100vw - 64rem) / 2));
    bottom: auto;
    left: auto;
    display: flex;
    gap: 0.2rem;
    width: auto;
    padding: 0.3rem;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 6px 18px rgb(32 35 31 / 6%);
  }

  .primary-nav a,
  .primary-nav__logout button {
    min-height: 44px;
    flex-direction: row;
    gap: 0.4rem;
    padding: 0 0.85rem;
    font-size: 0.8rem;
  }

  .primary-nav__icon {
    font-size: 1rem;
  }

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

  .calendar {
    padding: 1rem;
  }

  .calendar-day {
    min-height: 4.5rem;
    padding-top: 0.7rem;
  }

  .calendar-day__markers span {
    width: 0.45rem;
    height: 0.45rem;
  }

  .form-card,
  .confirmation-card {
    padding: 2rem;
  }

  .toast {
    bottom: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}