:root {
  color-scheme: light;
  --cream: #f6f1e8;
  --paper: #fffdf8;
  --ink: #253b32;
  --muted: #6e766c;
  --green: #315b49;
  --orange: #c66a43;
  --line: #ded9ce;
  --serif: Georgia, "Times New Roman", serif;
  --sans: "Avenir Next", Avenir, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
}

button, input { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

.page-shell {
  width: min(920px, calc(100% - 48px));
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 80px;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--green);
  font-family: var(--serif);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -.06em;
  text-decoration: none;
}

.brand span { color: var(--orange); }
.top-note, .footer { color: var(--muted); font-size: .78rem; }

.intro {
  padding: 72px 0 42px;
  text-align: center;
}

.eyebrow, .section-kicker {
  color: var(--orange);
  font-size: .68rem;
  font-weight: 750;
  letter-spacing: .17em;
  text-transform: uppercase;
}

.eyebrow { margin-bottom: 17px; }

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

h1 {
  margin-bottom: 17px;
  font-family: var(--serif);
  font-size: clamp(3.4rem, 9vw, 5.8rem);
  font-weight: 500;
  letter-spacing: -.075em;
  line-height: .91;
}

h1 em { color: var(--orange); font-weight: 400; }

.intro-copy {
  margin-bottom: 0;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.7;
}

.card {
  width: min(100%, 570px);
  margin: 0 auto;
  padding: 34px;
  border: 1px solid var(--line);
  background: var(--paper);
  box-shadow: 0 18px 50px rgba(37, 59, 50, .06);
}

.auth-card { max-width: 440px; }
.section-kicker { margin-bottom: 9px; }

h2 {
  margin-bottom: 23px;
  font-family: var(--serif);
  font-size: 2rem;
  font-weight: 500;
  letter-spacing: -.04em;
}

form label:not(.task-label):not(.visually-hidden) {
  display: block;
  margin: 16px 0 7px;
  color: var(--ink);
  font-size: .78rem;
  font-weight: 650;
}

input:not([type="checkbox"]) {
  width: 100%;
  min-height: 47px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: white;
  color: var(--ink);
  outline: none;
}

input:focus-visible {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(49, 91, 73, .12);
}

.button {
  display: inline-flex;
  min-height: 47px;
  align-items: center;
  justify-content: center;
  padding: 0 19px;
  border: 1px solid var(--green);
  border-radius: 2px;
  background: var(--green);
  color: white;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.button:hover, .button:focus-visible { background: #244436; }

#auth-submit { width: 100%; margin-top: 22px; }

.switch-mode {
  margin: 20px 0 0;
  color: var(--muted);
  font-size: .83rem;
  text-align: center;
}

.text-button {
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--green);
  font-size: .8rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.message {
  min-height: 1.3em;
  margin: -10px 0 8px;
  color: #a3442e;
  font-size: .83rem;
  line-height: 1.5;
}

.tasks-card { max-width: 620px; }

.tasks-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.tasks-heading h2 { margin-bottom: 0; }
.tasks-heading .text-button { margin-top: 8px; }
.welcome-user { margin: 9px 0 22px; color: var(--muted); font-size: .83rem; }
.tasks-card .message { margin: -10px 0 8px; }

.task-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 9px;
}

.task-form input { min-width: 0; }
.task-form .button { white-space: nowrap; }

.task-list {
  display: grid;
  gap: 0;
  padding: 0;
  margin: 19px 0 0;
  list-style: none;
}

.task-item {
  display: flex;
  min-height: 57px;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border-bottom: 1px solid var(--line);
}

.task-label {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-size: .91rem;
  line-height: 1.5;
}

.task-label input {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  accent-color: var(--green);
}

.task-label span { overflow-wrap: anywhere; }
.is-complete .task-label span { color: #8c9288; text-decoration: line-through; }

.delete-button {
  flex: 0 0 auto;
  padding: 7px 0 7px 8px;
  border: 0;
  background: transparent;
  color: #9b5940;
  font-size: .74rem;
}

.delete-button:hover, .delete-button:focus-visible { color: #71351f; text-decoration: underline; }

.empty-state {
  margin: 24px 0 4px;
  color: var(--muted);
  font-family: var(--serif);
  font-size: 1rem;
  font-style: italic;
  text-align: center;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 30px 0 25px;
  font-size: .73rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  clip-path: inset(50%);
}

@media (max-width: 560px) {
  .page-shell { width: calc(100% - 32px); }
  .topbar { min-height: 68px; }
  .top-note { max-width: 135px; font-size: .68rem; text-align: right; }
  .intro { padding: 58px 0 32px; }
  .card { padding: 25px 21px; }
  .task-form { grid-template-columns: 1fr; }
  .task-form .button { width: 100%; }
  .footer { flex-direction: column; gap: 7px; }
}