/* ToDo — estil mínim */
:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --border: #e5e7eb;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* Barra superior */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.7rem 1.2rem;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  color: var(--primary);
}

.topnav {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.who {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Contenidor principal */
.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

h1 {
  font-size: 1.4rem;
  margin: 0.3rem 0 1rem;
}

/* Missatges de feedback */
.messages {
  max-width: 640px;
  margin: 0.8rem auto 0;
  padding: 0 1rem;
}

.message {
  margin: 0.3rem 0;
  padding: 0.55rem 0.9rem;
  border-radius: var(--radius);
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
  font-size: 0.92rem;
}

.message.info,
.message.warning {
  background: #eff6ff;
  color: #1e40af;
  border-color: #bfdbfe;
}

.message.error {
  background: #fef2f2;
  color: #991b1b;
  border-color: #fecaca;
}

/* Capçalera de pàgina */
.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

/* Botons i enllaços d'acció */
.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  background: var(--primary);
  color: #fff;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover {
  background: var(--primary-dark);
}

.btn.secondary {
  background: transparent;
  color: var(--primary);
}

.btn.danger {
  border-color: var(--danger);
  background: var(--danger);
}

.btn.danger:hover {
  background: #b91c1c;
}

.btn.small {
  padding: 0.3rem 0.6rem;
  font-size: 0.85rem;
}

/* Filtres */
.filters {
  list-style: none;
  display: flex;
  gap: 0.4rem;
  padding: 0;
  margin: 1rem 0;
}

.filters a {
  display: inline-block;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--muted);
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 0.9rem;
}

.filters a.active {
  color: #fff;
  background: var(--primary);
  border-color: var(--primary);
}

/* Llista de tasques */
.tasks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.task {
  display: flex;
  align-items: flex-start;
  gap: 0.7rem;
  padding: 0.8rem 1rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.task .task-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.task-title {
  font-weight: 600;
}

.task-notes {
  color: var(--muted);
  font-size: 0.9rem;
  white-space: pre-line;
}

.task-due {
  color: var(--muted);
  font-size: 0.85rem;
}

.task-due.overdue {
  color: var(--danger);
}

.task-actions {
  display: flex;
  gap: 0.4rem;
}

.task.done .task-title {
  text-decoration: line-through;
  color: var(--muted);
}

.task.overdue {
  border-left: 4px solid var(--danger);
}

/* Botó de marcar com a feta */
.check {
  width: 1.9rem;
  height: 1.9rem;
  border: 1.5px solid var(--muted);
  border-radius: 50%;
  background: #fff;
  color: var(--primary);
  font-size: 1rem;
  cursor: pointer;
  flex-shrink: 0;
}

.check:hover {
  border-color: var(--primary);
}

.task.done .check {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

/* Formularis */
form p {
  margin: 0 0 0.9rem;
}

form label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
  color: var(--muted);
}

form input[type="text"],
form input[type="password"],
form input[type="date"],
form textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font: inherit;
  background: #fff;
}

form input:focus,
form textarea:focus {
  outline: 2px solid var(--primary);
  outline-offset: 1px;
  border-color: var(--primary);
}

form p.errorlist {
  color: var(--danger);
  font-size: 0.85rem;
}

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

/* Pàgina d'authentificació */
.auth-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  max-width: 380px;
  margin: 2rem auto 0;
}

.auth-card h1 {
  margin-top: 0;
}

.auth-switch {
  color: var(--muted);
  font-size: 0.9rem;
}

.form-error {
  color: var(--danger);
  font-size: 0.92rem;
}

.empty {
  text-align: center;
  color: var(--muted);
  padding: 2rem 0;
}

/* Utilitats */
.inline-form {
  display: inline;
}

.linklike {
  border: 0;
  background: none;
  padding: 0;
  font: inherit;
  color: var(--primary);
  cursor: pointer;
}

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