/* Colour tokens use light-dark(); which half applies is decided by the used
   color-scheme, same approach as feedreader. Never hardcode a colour below. */
:root {
  color-scheme: light dark;

  --bg:          light-dark(#faf7f2, #14181b);
  --surface:     light-dark(#ffffff, #1b2126);
  --surface-alt: light-dark(#f2ede4, #222a30);
  --border:      light-dark(#e2dace, #2c353c);
  --text:        light-dark(#20262b, #e8e6e1);
  --text-dim:    light-dark(#6b6459, #9aa3ab);
  --accent:      light-dark(#1b3a4b, #7fb3c8);
  --accent-text: light-dark(#ffffff, #0e1417);

  --critical:    light-dark(#a32c1e, #ef8f7f);
  --high:        light-dark(#b3641a, #f0ad6a);
  --medium:      light-dark(#7a6a1f, #d8c56b);
  --low:         light-dark(#4a6b52, #8fc09b);

  --radius: 10px;
  --pad: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-text-size-adjust: 100%;
}

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: max(10px, env(safe-area-inset-top)) var(--pad) 10px;
  background: var(--accent);
  color: var(--accent-text);
}
.nav__brand {
  font-weight: 650;
  letter-spacing: 0.02em;
  color: inherit;
  text-decoration: none;
}
.nav__links { display: flex; gap: 4px; }
.nav__link {
  padding: 6px 12px;
  border-radius: 999px;
  color: inherit;
  text-decoration: none;
  opacity: 0.75;
  font-size: 15px;
}
.nav__link.is-active {
  background: color-mix(in srgb, var(--accent-text) 18%, transparent);
  opacity: 1;
}

.main {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--pad) var(--pad) 64px;
}

/* ---------- page head ---------- */
.page-head__title { margin: 8px 0 4px; font-size: 26px; letter-spacing: -0.01em; }
.page-head__sub { margin: 0 0 16px; color: var(--text-dim); font-size: 14px; }
.page-head__count { margin-left: 4px; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: space-between;
  margin-bottom: 18px;
}
.toolbar__group { display: flex; gap: 8px; }
.chip {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text-dim);
  font-size: 14px;
  text-decoration: none;
}
.chip.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

/* ---------- todo list ---------- */
.todo-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.todo {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--border);
  border-radius: var(--radius);
}
.todo--critical { border-left-color: var(--critical); }
.todo--high     { border-left-color: var(--high); }
.todo--medium   { border-left-color: var(--medium); }
.todo--low      { border-left-color: var(--low); }
.todo.is-done { opacity: 0.55; }
.todo.is-done .todo__title { text-decoration: line-through; }

.todo__main { flex: 1; min-width: 0; }
.todo__top { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.todo__title { margin: 0; font-size: 17px; font-weight: 600; }
.todo__meta {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--text-dim);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.todo__sep { opacity: 0.5; }
.todo__cat { text-transform: capitalize; }
.todo__notes { margin: 8px 0 0; font-size: 14px; }
.todo__link { display: inline-block; margin-top: 8px; font-size: 14px; color: var(--accent); }

.badge {
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent-text);
}
.badge--critical { background: var(--critical); }
.badge--high     { background: var(--high); }
.badge--medium   { background: var(--medium); }
.badge--low      { background: var(--low); }

/* ---------- timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; }
.day { display: flex; gap: 14px; }
.day__rail {
  flex: 0 0 34px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.day__num {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 13px;
  font-weight: 650;
}
.day__rail::after {
  content: "";
  flex: 1;
  width: 2px;
  background: var(--border);
  margin: 6px 0;
}
.day:last-child .day__rail::after { display: none; }

.day__body { flex: 1; padding-bottom: 22px; min-width: 0; }
.day__head { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.day__location { margin: 2px 0; font-size: 18px; }
.day__date { color: var(--text-dim); font-size: 13px; }
.day__label {
  display: inline-block;
  margin-right: 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}
.day__stay { margin: 6px 0; font-size: 14px; }
.day__notes { margin: 8px 0 0; font-size: 14px; color: var(--text-dim); }

.acts { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 6px; }
.act {
  display: flex;
  gap: 10px;
  padding: 8px 10px;
  background: var(--surface-alt);
  border-radius: 8px;
  font-size: 14px;
}
.act__time { flex: 0 0 44px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.act__body { flex: 1; min-width: 0; }
.act__flag {
  margin-left: 8px;
  padding: 1px 6px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--high) 22%, transparent);
  color: var(--high);
  font-size: 11px;
}
.act__notes { margin: 4px 0 0; color: var(--text-dim); font-size: 13px; }

/* ---------- shared ---------- */
.btn {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--text);
  font: inherit;
  font-size: 14px;
  cursor: pointer;
}
.btn--primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); width: 100%; }
.btn--ghost { white-space: nowrap; }
.todo__actions form { margin: 0; }

.empty { padding: 40px 16px; text-align: center; color: var(--text-dim); }
.empty__hint { font-size: 14px; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 14px; font-size: 14px; }
.flash--alert  { background: color-mix(in srgb, var(--critical) 15%, transparent); color: var(--critical); }
.flash--notice { background: color-mix(in srgb, var(--low) 18%, transparent); color: var(--low); }

/* ---------- login ---------- */
.login { max-width: 320px; margin: 12vh auto; padding: 0 var(--pad); }
.login__title { font-size: 22px; text-align: center; margin-bottom: 20px; }
.login__form { display: grid; gap: 10px; }
.input {
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}