* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

h1 { font-size: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
a { color: var(--accent); }
p { margin: 0 0 .75rem; }

/* header and nav */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .75rem 1rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.brand { font-weight: 600; color: var(--text); text-decoration: none; }

.top nav { display: flex; gap: .25rem; }

.top nav a {
  padding: .4rem .75rem;
  border-radius: 6px;
  color: var(--text);
  text-decoration: none;
}

.top nav a.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

main { max-width: 1100px; margin: 0 auto; padding: 1.25rem 1rem 5rem; }

/* nav moves to the bottom on phones */
@media (max-width: 600px) {
  .top nav {
    position: fixed;
    inset: auto 0 0 0;
    justify-content: space-around;
    padding: .4rem .5rem calc(.4rem + env(safe-area-inset-bottom));
    background: var(--surface);
    border-top: 1px solid var(--border);
    z-index: 10;
  }
}

/* cards and lists */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  margin-bottom: 1rem;
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: .75rem;
}

.card-head h1, .card-head h2 { margin-bottom: .25rem; }
.title { font-weight: 400; }

.summary { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.summary p { margin: 0; }

.list { list-style: none; padding: 0; margin: 0 0 1rem; }
.list li { display: flex; flex-wrap: wrap; gap: .25rem 1rem; padding: .5rem 0; border-top: 1px solid var(--border); }
.list li:first-child { border-top: 0; }

.hint { color: var(--muted); font-size: .9rem; }
.hint.error { color: var(--danger); }
.total { font-weight: 600; }

/* forms */
input, select, button { font: inherit; color: inherit; }

input, select {
  padding: .4rem .5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  min-width: 0;
}

input:focus-visible, select:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: .75rem;
  margin-bottom: .75rem;
}

.grid label { display: flex; flex-direction: column; gap: .25rem; font-size: .9rem; }
.grid .wide { grid-column: span 2; }

@media (max-width: 480px) {
  .grid .wide { grid-column: auto; }
}

.row { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem; margin-bottom: .5rem; }

.check { display: flex; align-items: center; gap: .5rem; margin: .5rem 0; }

fieldset { border: 0; padding: 0; margin: .75rem 0; display: flex; flex-wrap: wrap; gap: 0 1rem; }
legend { font-size: .9rem; padding: 0; margin-bottom: .25rem; }

.segmented { display: inline-flex; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.segmented label { padding: .4rem .9rem; cursor: pointer; }
.segmented label + label { border-left: 1px solid var(--border); }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented label:has(input:checked) { background: var(--accent); color: var(--on-accent); }
.segmented label:has(input:focus-visible) { outline: 2px solid var(--accent); outline-offset: -2px; }

/* buttons */
button {
  padding: .45rem .9rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
}

button:disabled { opacity: .5; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
button.link { background: none; border: 0; padding: .25rem .4rem; color: var(--accent); text-decoration: underline; }
button.danger, button.link.danger { color: var(--danger); }

.actions { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.actions.spaced { margin-top: 1.25rem; }

/* setup steps */
.steps { display: flex; gap: 1.5rem; padding: 0; margin: 0 0 1rem; list-style: none; counter-reset: step; }
.steps li { color: var(--muted); counter-increment: step; }
.steps li::before { content: counter(step) '. '; }
.steps li.current { color: var(--text); font-weight: 600; }

/* assessment parts */
.part {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .75rem;
  padding: .5rem 0;
  border-top: 1px solid var(--border);
}

.part-title { flex: 1 1 12rem; }
.part label { display: flex; align-items: center; gap: .3rem; font-size: .9rem; }
.part input[type="number"] { width: 4.5rem; }
.part.done .part-title { text-decoration: line-through; color: var(--muted); }

.progress-wrap { margin-top: 1rem; }
.progress { height: 8px; background: var(--border); border-radius: 4px; overflow: hidden; margin-bottom: .4rem; }
.progress span { display: block; height: 100%; background: var(--accent); }

/* week calendar */
.key { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: .75rem; font-size: .9rem; }
.key span { display: flex; align-items: center; gap: .4rem; }
.swatch { width: .9rem; height: .9rem; border-radius: 3px; background: var(--fc-event-bg-color); }

.calendar { padding: .5rem; }

.fc {
  --fc-border-color: var(--border);
  --fc-page-bg-color: var(--surface);
  --fc-neutral-bg-color: var(--bg);
  --fc-today-bg-color: var(--today);
  --fc-now-indicator-color: var(--danger);
  --fc-button-text-color: var(--text);
  --fc-button-bg-color: var(--surface);
  --fc-button-border-color: var(--border);
  --fc-button-hover-bg-color: var(--accent-soft);
  --fc-button-hover-border-color: var(--border);
  --fc-button-active-bg-color: var(--accent);
  --fc-button-active-border-color: var(--accent);
}

.fc .fc-button-primary:not(:disabled).fc-button-active { color: var(--on-accent); }
.fc .fc-toolbar-title { font-size: 1.1rem; }
.fc .fc-toolbar { flex-wrap: wrap; gap: .5rem; }

.ev-work { --fc-event-bg-color: var(--work); --fc-event-border-color: var(--work); --fc-event-text-color: var(--on-work); }
.ev-blocked { --fc-event-bg-color: var(--blocked); --fc-event-border-color: var(--blocked); --fc-event-text-color: var(--on-blocked); }
.ev-due { --fc-event-bg-color: var(--due); --fc-event-border-color: var(--due); --fc-event-text-color: var(--on-due); }

.ev-tutorial { --fc-event-bg-color: var(--tutorial); --fc-event-border-color: var(--tutorial); --fc-event-text-color: var(--on-tutorial); }
.ev-study { --fc-event-bg-color: var(--study); --fc-event-border-color: var(--study); --fc-event-text-color: var(--on-study); }
.ev-free { --fc-event-bg-color: var(--free); }

/* each module has its own colour, tma work has a stripe down the left */
.mod-0 { --study: var(--mod-0); --on-study: var(--on-mod); }
.mod-1 { --study: var(--mod-1); --on-study: var(--on-mod); }
.mod-2 { --study: var(--mod-2); --on-study: var(--on-mod); }
.mod-3 { --study: var(--mod-3); --on-study: var(--on-mod); }
.mod-4 { --study: var(--mod-4); --on-study: var(--on-mod); }
.fc-event.ev-tma .fc-event-main, .swatch.ev-tma { box-shadow: inset 4px 0 0 rgba(0, 0, 0, .35); }

/* dashed until accepted */
.ev-suggested { --fc-event-bg-color: var(--suggested); --fc-event-border-color: var(--study); --fc-event-text-color: var(--on-suggested); }
.fc-event.ev-suggested { border-style: dashed; border-width: 2px; }
.fc .fc-bg-event.ev-free { opacity: .25; }
.swatch.ev-free { opacity: .5; }

/* page header, notices and panels */
.page-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .5rem; margin-bottom: 1rem; }
.page-head h1 { margin: 0; }

.notice {
  padding: .75rem 1rem;
  margin-bottom: 1rem;
  border-radius: 8px;
  background: var(--accent-soft);
}

.notice p:last-child { margin: 0; }
.notice.warn { background: var(--warn-bg); color: var(--warn-text); }

.panel { border-color: var(--accent); }
.panel p { margin-bottom: .4rem; }

.grow { flex: 1 1 auto; }
.list li { align-items: flex-start; }
.list li p { margin: 0; }

textarea {
  width: 100%;
  margin: .5rem 0;
  padding: .5rem;
  font: inherit;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
}

.paste { margin-top: 1rem; }
.grid .hint { font-size: .8rem; }
.stack { display: flex; flex-direction: column; gap: .25rem; max-width: 22rem; margin-bottom: .75rem; }

/* sync paused banner */
.banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .25rem .75rem;
  padding: .5rem 1rem;
  background: var(--warn-bg);
  color: var(--warn-text);
}

.banner .link { color: inherit; }
.banner .error { font-size: .9rem; }

h3 { font-size: 1rem; margin: 1.25rem 0 .5rem; }
.spaced-top { margin-top: .75rem; }

/* time zone search results */
.zone-picker { max-width: 26rem; }
.results { list-style: none; padding: 0; margin: 0 0 .75rem; border: 1px solid var(--border); border-radius: 6px; }
.results li + li { border-top: 1px solid var(--border); }
.results button { width: 100%; text-align: left; border: 0; border-radius: 0; display: flex; justify-content: space-between; gap: 1rem; }
.results button:hover { background: var(--accent-soft); }
.results .hint { padding: .4rem .9rem; display: block; }

/* done blocks */
.ev-done { --fc-event-bg-color: var(--border); --fc-event-border-color: var(--border); --fc-event-text-color: var(--muted); }

/* today check ins */
.check-in {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .5rem .75rem;
  padding: .6rem 0;
  border-top: 1px solid var(--border);
}

.check-in:first-of-type { border-top: 0; }
.check-in p { margin: 0; }
.check-in label { display: flex; align-items: center; gap: .3rem; font-size: .9rem; }
.check-in input[type="number"] { width: 4.5rem; }

.todos { margin-bottom: 1rem; }

/* fit five nav items on a phone */
@media (max-width: 600px) {
  .top nav a { padding: .4rem .5rem; font-size: .9rem; }
}

/* privacy page */
.prose { max-width: 42rem; }
.prose h2 { margin-top: 1.5rem; }

/* blocks that clash with work, blocked time or study hours */
.fc-event.ev-clash { outline: 2px solid var(--danger); outline-offset: -2px; }
.swatch.ev-clash-key { background: transparent; border: 2px solid var(--danger); }

/* month view */
.fc .fc-daygrid-day-number { color: var(--accent); }
.fc .fc-daygrid-event { font-size: .8rem; }

/* study days table */
.days { display: grid; gap: .4rem; margin-bottom: 1rem; }
.day-row { display: grid; grid-template-columns: 9rem 7rem 7rem 6rem auto; gap: .5rem; align-items: center; }
.day-row .check { margin: 0; }
.day-head { font-size: .85rem; color: var(--muted); }
.day-row.off input[type="time"], .day-row.off input[type="number"] { opacity: .4; }

@media (max-width: 600px) {
  .day-row { grid-template-columns: 1fr 1fr; }
  .day-row > .check:first-child { grid-column: 1 / -1; font-weight: 600; }
  .day-head { display: none; }
  .day-row { padding: .5rem 0; border-top: 1px solid var(--border); }
}

/* more options */
details summary { cursor: pointer; font-weight: 600; font-size: 1.1rem; }
details[open] summary { margin-bottom: .75rem; }
.plan-range { display: flex; gap: .4rem; }

/* submitted assessments */
.fc-event.ev-submitted { opacity: .45; text-decoration: line-through; }
.list li .submitted { margin: 0 0 0 auto; font-size: .9rem; }

/* catch up form inside a module card */
.panel-inline { border: 1px solid var(--accent); border-radius: 8px; padding: .75rem; margin-bottom: 1rem; }
.panel-inline .row label { display: flex; flex-direction: column; gap: .25rem; font-size: .9rem; }
.panel-inline input[type="number"] { width: 6rem; }
.catch-up { color: var(--accent); }

/* on a phone the time and title share a line, so most blocks fit in two */
@media (max-width: 600px) {
  .fc-timegrid-event .fc-event-main-frame { flex-direction: row; flex-wrap: wrap; gap: 0 .3rem; align-items: baseline; }
  .fc-timegrid-event .fc-event-main { font-size: .78rem; }
  .fc .fc-timegrid-slot-label-cushion, .fc .fc-col-header-cell-cushion { font-size: .85rem; }
  .fc .fc-timegrid-axis-cushion { font-size: .8rem; }
}

/* keep block text readable when a block is short */
.fc-timegrid-event .fc-event-main { font-size: .8rem; line-height: 1.25; overflow: hidden; }
.fc-timegrid-event .fc-event-time { font-size: .75rem; }
.fc-timegrid-event-short .fc-event-main-frame { flex-direction: row; gap: .3rem; align-items: baseline; }
.fc-timegrid-event-short .fc-event-time::after { content: ''; }
.fc-timegrid-event-short .fc-event-title { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* drive connect choice */
.choice { margin: .75rem 0; }
.choice .hint { margin: .3rem 0 0; }

/* new version ready */
.banner.update { background: var(--accent-soft); color: var(--text); }
.banner.update .link { color: var(--accent); }