/*
  style.css for the Prerequisite Map.

  Laid out like a course catalog (ruled lists, not boxes), but set for the
  screen: a clean sans-serif for reading (IBM Plex Sans), a contemporary
  serif for titles and headings (Literata), dark ink on near-white, and two
  "pencil" colors: red for what a course needs, blue for what it unlocks.
  No rounded corners, no shadows, no gradients.
*/

:root {
  --paper: #fcfcfb;        /* page */
  --ink: #1d2125;          /* text and rules */
  --muted: #5d646c;        /* secondary text */
  --dots: #c9cdd2;         /* dotted rules between courses */
  --red: #b3261e;          /* the chosen course and what it needs */
  --blue: #2a4f96;         /* what it unlocks */
  --green: #2f6b3a;        /* taken, and "next" */
  --faded: 0.3;            /* opacity of unrelated courses while one is chosen */

  --sans: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  --serif: "Literata", Georgia, "Times New Roman", serif;
  --panel-width: 350px;
  --col-min: 168px;        /* course columns are at least this wide */
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.45;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-underline-offset: 2px; }

:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

kbd {
  font: inherit;
  font-size: 0.85em;
  padding: 0 4px;
  border: 1px solid var(--dots);
  border-bottom-width: 2px;
}

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

.text-button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* --------------------------------------------------------------- masthead */

.top { border-bottom: 1px solid var(--ink); }

.mast {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 28px;
  padding: 14px 28px 10px;
  border-bottom: 1px solid var(--dots);
}

.site-name {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.65rem;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}
.site-name a { text-decoration: none; }
.tagline { margin-left: 12px; font-family: var(--sans); font-size: 0.95rem; font-weight: 400; letter-spacing: 0; color: var(--muted); }

.mast-nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
}
.mast-nav a[hidden] { display: none; }
.options-button { display: none; }

/* The line under the masthead: program, find a course, what to show. */
.sub {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 24px;
  padding: 8px 28px 9px;
}

/* The programs on the map: names joined by "+", each with an × to remove it. */
.chosen { display: inline-flex; flex-wrap: wrap; align-items: baseline; gap: 2px 10px; font-weight: 600; }
.chosen:empty { display: none; }
.chosen .plus { color: var(--muted); font-weight: 400; }
.chosen .remove {
  font: inherit;
  font-weight: 400;
  color: var(--muted);
  background: none;
  border: 0;
  padding: 0 2px;
  cursor: pointer;
}
.chosen .remove:hover { color: var(--red); }
.box .tag.both { color: var(--blue); }

.picker input {
  font: inherit;
  font-size: 1rem;
  color: var(--ink);
  width: 300px;
  max-width: 100%;
  padding: 2px 0;
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--dots);
  border-radius: 0;
}
#major-input { width: 240px; }
.picker input::placeholder { font-weight: 400; color: var(--muted); }
.picker input:disabled { opacity: 0.6; }
#course-input { width: 200px; }

/* The search boxes' dropdown (search.js): a plain list under the box. */
.search { position: relative; }
.search-list {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 30;
  min-width: 100%;
  width: max-content;
  max-width: min(440px, 92vw);
  max-height: 60vh;
  overflow-y: auto;
  margin: 2px 0 0;
  padding: 2px 0;
  list-style: none;
  background: var(--paper);
  border: 1px solid var(--ink);
  font-weight: 400;
}
.search-list li { padding: 4px 10px; cursor: pointer; }
.search-list li.active { background: var(--ink); color: var(--paper); }
.search-list li.active .search-hint { color: inherit; }
.search-hint { color: var(--muted); font-size: 13px; }
.search-list li.search-none { cursor: default; color: var(--muted); white-space: normal; }
.toggles[hidden] { display: none; }

.options-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 24px;
}

.toggles {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 14px;
  margin: 0;
  padding: 0;
  border: 0;
  font-size: 0.92rem;
  color: var(--muted);
}
.toggles legend { float: left; margin-right: 2px; }
.toggles label { white-space: nowrap; cursor: pointer; }
.toggles input { accent-color: var(--ink); margin: 0 3px 0 0; vertical-align: -1px; }

.taken-status { margin: 0; font-size: 0.92rem; color: var(--green); }

/* ------------------------------------------------------------ main area */

.layout {
  flex: 1;
  display: flex;
  min-height: 0;           /* lets the map shrink instead of overflowing */
}

.map-area {
  position: relative;
  flex: 1;
  min-width: 0;
}

/*
  The map scrolls down the page. Inside it, the "stage" holds the steps and
  elective lists, with an SVG drawing of the lines laid under the text.
*/
.map {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  overflow-x: hidden;
}

.stage {
  position: relative;
  min-height: 100%;
  padding: 10px 28px 48px;
}

.arrows {
  position: absolute;
  left: 0;
  top: 0;
  overflow: visible;
  pointer-events: none;
  z-index: 0;              /* under the course names */
}

.arrow { fill: none; stroke-width: 1.5; }
.arrow.needs { stroke: var(--red); marker-end: url(#head-needs); }
.arrow.chain { stroke: var(--red); stroke-width: 1; opacity: 0.4; marker-end: url(#head-chain); }
.arrow.unlocks { stroke: var(--blue); marker-end: url(#head-unlocks); }
.arrow.alternative { stroke-dasharray: 4 3; }
#head-needs path, #head-chain path { fill: var(--red); }
#head-unlocks path { fill: var(--blue); }

/* The two lines at the top of a map: how to use it, and what the marks mean. */
.map-head { margin: 6px 0 2px; font-size: 0.92rem; color: var(--muted); }
.map-head p { margin: 0 0 2px; }
.map-head .red { color: var(--red); font-weight: 600; }
.map-head .blue { color: var(--blue); font-weight: 600; }
.map-head .ok { color: var(--green); font-weight: 600; }
.narrow-only { display: none; }

/* A step or a list of electives: a serif heading over a rule. */
.row { margin-top: 24px; }
.row-label {
  margin: 0 0 4px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--ink);
  font-family: var(--serif);
  font-size: 1.05rem;
  font-weight: 600;
}
.row-count { margin-left: 10px; font-family: var(--sans); font-size: 0.9rem; font-weight: 400; color: var(--muted); }
.elective-row { margin-top: 36px; }
.map-note { color: var(--muted); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--col-min), 1fr));
  column-gap: 26px;
  row-gap: 6px;            /* room for a course to grow 5% without touching the next */
}

/* A course: its code and title, over a dotted rule. Not a box. */
.box {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  padding: 7px 0 8px;
  font: inherit;
  font-size: 0.92rem;
  line-height: 1.3;
  text-align: left;
  color: var(--ink);
  background: var(--paper);  /* so lines pass under the words, not through them */
  border: 0;
  border-bottom: 1px dotted var(--dots);
  border-radius: 0;
  cursor: pointer;
  transform-origin: left center;
  /* Grows or shrinks (from app.js, SCALE) when another course is chosen. */
  transition: opacity 120ms, transform 150ms ease-out;
}
.box .line { display: block; max-width: 100%; }
.box .strong { font-size: 1rem; font-weight: 600; }
.box .title {
  color: #3a4048;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.box .tag { font-size: 0.85rem; color: var(--muted); }
.box:hover .strong { text-decoration: underline; text-underline-offset: 3px; }

.box.role-prerequisite .strong::after { content: " †"; font-weight: 400; }
.box.inactive, .box.inactive .title { color: var(--muted); }
.box.kind-pool .strong { font-style: italic; }

/* Progress from "I've taken this course". */
.box.taken .strong { color: var(--green); }
.box.ready .strong::after { content: " next"; font-size: 0.82rem; font-weight: 500; color: var(--green); }
.box.role-prerequisite.ready .strong::after { content: " † next"; }

/* A course is chosen: it and its relatives are inked, the rest fade. */
.stage.focused .box { opacity: var(--faded); }
.stage.focused .box.selected,
.stage.focused .box.needs,
.stage.focused .box.unlocks { opacity: 1; z-index: 2; }
.box.needs .strong { color: var(--red); }
.box.unlocks .strong { color: var(--blue); }
.box.selected, .box.selected .title { color: var(--red); }
.box.selected .strong { text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; }
.box.selected .tag { color: var(--red); }

/* Lines at the top and bottom edges of the map naming linked courses that
   are scrolled out of view. Click to scroll there. */
.offscreen {
  position: absolute;
  left: 28px;
  z-index: 5;
  max-width: calc(100% - 56px);
  padding: 3px 0 2px;
  font: inherit;
  font-size: 0.92rem;
  font-weight: 500;
  text-align: left;
  background: var(--paper);
  border: 0;
  border-radius: 0;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.offscreen.down { bottom: 10px; color: var(--blue); border-bottom: 1px solid var(--blue); }
.offscreen.up { top: 8px; color: var(--red); border-bottom: 1px solid var(--red); }
.offscreen[hidden] { display: none; }

/* ------------------------------------------------- the front page */

.empty {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  background: var(--paper);
}
.empty-inner { max-width: 1180px; padding: 28px 28px 48px; }

.empty h2 { margin: 0 0 10px; font-family: var(--serif); font-size: 1.6rem; font-weight: 600; line-height: 1.2; }
.empty p { margin: 0 0 10px; max-width: 640px; }
.quick { color: var(--muted); }
.quick a { color: var(--ink); }
.empty[hidden], .notice[hidden], #welcome[hidden] { display: none; }

/* A message in place of the welcome text ("no map at that address"). */
.notice {
  max-width: 680px;
  margin-bottom: 8px;
  padding: 10px 0 4px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.notice h2 { color: var(--red); }

/* The index of every program, by department, like the back of a catalog. */
.browse-count { margin: 26px 0 10px !important; padding-bottom: 6px; border-bottom: 1px solid var(--ink); color: var(--muted); max-width: none !important; }
.browse { columns: 3 280px; column-gap: 40px; }
.dept { break-inside: avoid; margin: 0 0 20px; }
.dept h3 {
  margin: 0 0 2px;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 600;
}
.dept ul { margin: 0; padding: 0; list-style: none; }
.dept li { padding: 3px 0; border-bottom: 1px dotted var(--dots); }
.dept a { text-decoration: none; }
.dept a:hover { text-decoration: underline; }
.note { font-size: 0.9rem; color: var(--muted); }

/* ------------------------------------------- beside the map: the entry */

.panel {
  width: var(--panel-width);
  flex-shrink: 0;
  overflow-y: auto;
  background: var(--paper);
  border-left: 1px solid var(--ink);
  padding: 16px 24px 28px;
}

.panel[hidden] { display: none; }
.panel-empty { color: var(--muted); }

.panel-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 14px;
  font-size: 0.92rem;
}
.nav-button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.nav-button[data-close] { margin-left: auto; }

.panel h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.15;
}
.panel .course-title { margin: 2px 0 8px; font-family: var(--serif); font-size: 1.1rem; font-weight: 500; line-height: 1.3; }
.panel .facts { margin: 0 0 12px; font-size: 0.92rem; color: var(--muted); }

.panel h3 {
  margin: 20px 0 4px;
  font-family: var(--serif);
  font-size: 1rem;
  font-weight: 600;
}
.needs-key { color: var(--red); }
.unlocks-key { color: var(--blue); }

.panel p { margin: 0 0 8px; }
.panel .catalog-text { font-size: 0.92rem; font-style: italic; color: var(--muted); }

.panel ul { margin: 0 0 8px; padding-left: 18px; }
.panel li { margin: 2px 0; }

/* A prerequisite tree: "All of" / "One of" groups nest under a hairline. */
.tree { list-style: none; padding-left: 0; }
.tree .tree { padding-left: 12px; border-left: 1px solid var(--dots); margin-left: 2px; }
.tree-label { font-size: 0.92rem; color: var(--muted); }

.course-link {
  font: inherit;
  font-weight: 600;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
  text-decoration: underline;
  text-decoration-color: var(--dots);
  text-underline-offset: 2px;
}
.course-link:hover { text-decoration-color: var(--ink); }

/* "Mark as taken" is a checkbox, like ticking a course off in pencil. */
.taken-row { display: flex; gap: 8px; align-items: baseline; margin: 4px 0 6px; cursor: pointer; }
.taken-row input { accent-color: var(--green); margin: 0; }
.taken-row.is-taken { color: var(--green); }
.ready-note { color: var(--green); }

.flag { color: var(--red); }

.panel details { margin-top: 12px; }
.panel summary { cursor: pointer; color: var(--muted); }

/* Phone-only: the handle at the top of the entry when it's a bottom sheet. */
.panel-handle { display: none; }

/* ---------------------------------------------------------------- footer */

.bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 24px;
  padding: 6px 28px 7px;
  font-size: 0.84rem;
  color: var(--muted);
  border-top: 1px solid var(--ink);
  background: var(--paper);
}
.bottom p { margin: 0; }
.bottom p[hidden] { display: none; }
#footer-repo { margin-left: auto; }

/* ------------------------------------------------------------ About box */

.about {
  width: min(720px, calc(100vw - 32px));
  max-height: calc(100vh - 48px);
  padding: 22px 30px 28px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  border-radius: 0;
}
.about::backdrop { background: rgba(29, 33, 37, 0.45); }
.about h2 { margin: 0 0 10px; padding-bottom: 8px; border-bottom: 1px solid var(--ink); font-family: var(--serif); font-size: 1.6rem; font-weight: 600; }
.about h3 { margin: 22px 0 6px; font-family: var(--serif); font-size: 1.05rem; font-weight: 600; }
.about ul { padding-left: 20px; }
.about li { margin: 5px 0; }
.about .lede { font-size: 1.05rem; color: var(--muted); }
.about .key { display: grid; grid-template-columns: max-content 1fr; gap: 3px 16px; margin: 0; }
.about .key dt { font-weight: 600; }
.about .key dd { margin: 0; color: var(--muted); }
.about .key dt:nth-of-type(1) { color: var(--red); }
.about .key dt:nth-of-type(2) { color: var(--blue); }
.about .key dt:nth-of-type(5) { color: var(--green); }
.about .key .next { font-style: normal; font-weight: 500; color: var(--green); }
.about .key .muted { color: var(--muted); font-weight: 400; }
.about-close { float: right; margin: 4px 0 0 12px; }

/* ------------------------------------------------------------ 404.html */

.page { display: block; height: auto; }
.article { max-width: 680px; margin: 0 auto; padding: 28px 20px 56px; }
.article h2 { margin: 0 0 12px; font-family: var(--serif); font-size: 1.6rem; font-weight: 600; }
.article .lede { font-size: 1.1rem; color: var(--muted); }

/* ------------------------------------------------------------ small screens
   On phones the entry becomes a sheet along the bottom of the screen: a
   handle shows what's chosen, and tapping it (or a course) slides the sheet
   up over the lower part of the map. */
@media (max-width: 800px) {
  :root { --col-min: 140px; }
  .mast { padding: 12px 16px 8px; }
  .site-name { font-size: 1.35rem; }
  .tagline { margin-left: 8px; font-size: 0.88rem; }
  .mast-nav { margin-left: 0; gap: 16px; }
  #footer-download { display: none; }
  .sub { padding: 6px 16px 7px; column-gap: 12px; }
  .views a { padding: 1px 8px 2px; }
  .picker, .picker input, #course-input { width: 100%; }

  .stage { padding: 6px 16px 24px; }
  .grid { column-gap: 18px; }
  /* Room to scroll the bottom courses up above the open sheet. */
  .stage::after { content: ""; display: block; height: 62vh; }
  .wide-only { display: none; }
  .narrow-only { display: inline; }
  .offscreen { left: 16px; max-width: calc(100% - 32px); }

  .empty-inner { padding: 20px 16px 40px; }
  .empty h2 { font-size: 1.35rem; }
  .browse { columns: 1; }
  .dept li { padding: 7px 0; }      /* bigger tap targets */

  /* "Find a course" and the Show checkboxes fold behind "Options". */
  .options-button { display: inline; }
  .top .more-options { display: none; }
  .top.show-options .more-options { display: flex; }

  .layout { flex-direction: column; }
  .map-area { flex: 1; min-height: 0; margin-bottom: 46px; }   /* clear of the closed sheet */

  .panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
    max-height: 62vh;
    padding: 0 16px 20px;
    border-left: 0;
    border-top: 1px solid var(--ink);
    z-index: 10;
    transform: translateY(calc(100% - 46px));
    transition: transform 180ms ease-out;
  }
  .panel.open { transform: translateY(0); }

  .panel-handle {
    display: block;
    position: sticky;
    top: 0;
    z-index: 1;
    width: calc(100% + 32px);
    margin: 0 -16px 10px;
    padding: 11px 16px 10px;
    font: inherit;
    font-weight: 600;
    text-align: left;
    color: var(--ink);
    background: var(--paper);
    border: 0;
    border-bottom: 1px solid var(--dots);
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .panel-handle::after { content: "▴"; float: right; font-weight: 400; }
  .panel.open .panel-handle::after { content: "▾"; }

  /* No room for a footer; the same notice is in the program's summary. */
  .bottom { display: none; }

  /* The map's key, behind "How to read this". */
  .map-head .map-key { display: none; }
  .map-head.open .map-key { display: block; }

  /* Scrolled down: a smaller header (app.js, section 8). */
  .top.compact .mast { padding: 6px 16px 4px; }
  .top.compact .site-name { font-size: 1.1rem; }
  .top.compact .tagline,
  .top.compact .sub > .picker:not(.more-options) { display: none; }
  .top.compact .sub { padding: 4px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ------------------------------------------------------------ Credit box */
.credit-invite { margin-top: 4px !important; }
.credit-note { color: var(--green); }
.ap-list { display: grid; gap: 2px 0; }
.ap-row { display: grid; grid-template-columns: 260px 90px 1fr; gap: 12px; align-items: baseline; padding: 3px 0; border-bottom: 1px dotted var(--dots); }
.ap-row label { display: flex; justify-content: space-between; gap: 10px; }
.ap-row select { font: inherit; }
.ap-result { font-size: 0.88rem; color: var(--green); }
.transfer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 2px 18px; }
.transfer-add-row input { font: inherit; border: 0; border-bottom: 1px solid var(--dots); background: transparent; width: 160px; }
@media (max-width: 800px) { .ap-row { grid-template-columns: 1fr; gap: 0; } }

/* ------------------------------------------------------------ Map / Plan */
.views { display: inline-flex; gap: 2px; margin-right: 6px; }
.views[hidden] { display: none; }
.views a {
  padding: 1px 10px 2px;
  text-decoration: none;
  border: 1px solid var(--dots);
  color: var(--muted);
}
.views a.current { color: var(--paper); background: var(--ink); border-color: var(--ink); }
.toggles[hidden], .picker[hidden] { display: none !important; }

/* ------------------------------------------------------------ the planner */
.plan-area { flex: 1; min-width: 0; display: flex; flex-direction: column; overflow: hidden; }
.plan-area[hidden] { display: none; }
.plan-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 22px;
  padding: 8px 28px;
  border-bottom: 1px solid var(--dots);
  font-size: 0.92rem;
}
.plan-tools select { font: inherit; }
.plan-tools input[type="number"] { font: inherit; width: 66px; border: 0; border-bottom: 1px solid var(--dots); background: transparent; }
.plan-tools input[type="checkbox"] { accent-color: var(--ink); }
.plan-buttons { display: inline-flex; flex-wrap: wrap; gap: 4px 16px; margin-left: auto; }
.plan-message { flex-basis: 100%; margin: 0; color: var(--green); min-height: 1.3em; }

.plan-body { flex: 1; min-height: 0; display: grid; grid-template-columns: minmax(260px, 340px) 1fr; }
.plan-reqs { overflow-y: auto; padding: 10px 20px 40px 28px; border-right: 1px solid var(--dots); font-size: 0.9rem; }
.plan-grid { overflow: auto; padding: 14px 24px 40px; }

.req-section { margin-top: 10px; }
.req-section > summary { list-style: none; cursor: pointer; }
.req-section > summary::-webkit-details-marker { display: none; }
.req-section > summary h3::before { content: "▸ "; font-family: var(--sans); color: var(--muted); }
.req-section[open] > summary h3::before { content: "▾ "; }
.req-section h3 { margin: 6px 0 4px; padding-bottom: 3px; border-bottom: 1px solid var(--ink); font-family: var(--serif); font-size: 1rem; font-weight: 600; }
.req-credit { margin: 4px 0 8px; padding: 8px 10px 4px; border: 1px solid var(--dots); }
.req-credit h3 { margin: 0 0 4px; font-family: var(--serif); font-size: 1rem; font-weight: 600; }
.credit-lines { margin: 0 0 6px; padding-left: 16px; }
.credit-button { font: inherit; font-weight: 600; padding: 4px 10px; color: var(--paper); background: var(--ink); border: 0; cursor: pointer; }
.req-list, .req-list ul { list-style: none; margin: 0; padding: 0; }
.req-list li { padding: 2px 0; }
/* A group: its heading, then its courses hanging off a vertical line.
   Click the line or the heading to collapse the group (planner.js). */
.req-toggle { font: inherit; text-align: left; color: inherit; background: none; border: 0; padding: 0; cursor: pointer; }
.req-toggle::before { content: "▾ "; color: var(--muted); }
.req-group.collapsed > .req-toggle::before { content: "▸ "; }
.req-hidden { font-size: 0.85rem; color: var(--muted); }
.req-children { position: relative; padding-left: 14px; margin: 1px 0 4px 3px; }
.req-group.collapsed > .req-children { display: none; }
.req-thread { position: absolute; left: 0; top: 0; bottom: 0; width: 12px; padding: 0; background: none; border: 0; cursor: pointer; }
.req-thread::before { content: ""; position: absolute; left: 3px; top: 0; bottom: 0; border-left: 1px solid var(--dots); }
.req-thread:hover::before { border-left: 2px solid var(--ink); }
.req-head { color: var(--muted); }
.req-progress { font-family: var(--sans); font-size: 0.85rem; font-weight: 400; color: var(--green); }
.req-course { cursor: grab; }
.req-code { font: inherit; font-weight: 600; background: none; border: 0; padding: 0; cursor: pointer; color: inherit; }
.req-done { color: var(--green); font-size: 0.85rem; }
.req-planned { color: var(--blue); font-size: 0.85rem; }
.req-text { color: var(--muted); font-style: italic; }

.plan-table { border-collapse: collapse; width: 100%; min-width: 640px; table-layout: fixed; }
.plan-table th { font-family: var(--serif); font-weight: 600; text-align: left; padding: 4px 8px; border-bottom: 1px solid var(--ink); }
.plan-table th.plan-year { width: 110px; vertical-align: top; padding-top: 10px; font-size: 0.92rem; border-bottom: 1px solid var(--dots); }
.plan-cell { vertical-align: top; padding: 6px 8px 8px; border-bottom: 1px solid var(--dots); border-left: 1px solid var(--dots); height: 92px; }
.plan-cell.drop { background: #eef2f8; }
.plan-cell.over .cell-units { color: var(--red); font-weight: 600; }
.cell-name { display: none; }
.cell-units { display: block; margin-top: 4px; font-size: 0.8rem; color: var(--muted); }
.chip {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  width: 100%;
  margin: 0 0 3px;
  padding: 3px 6px;
  font: inherit;
  font-size: 0.88rem;
  text-align: left;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--dots);
  cursor: grab;
}
.chip:hover { border-color: var(--ink); }
.chip-code { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chip-units { color: var(--muted); }
.chip.warn { border-color: var(--red); }
.chip.warn .chip-code { color: var(--red); }
.chip.selected { outline: 2px solid var(--blue); outline-offset: -1px; }
.chip.elective-slot { border-style: dashed; }
.chip.elective-slot .chip-code { font-weight: 400; font-style: italic; }
.plan-years { font-size: 0.9rem; }
.plan-actions { margin-top: 10px !important; }
.pick-list { list-style: none; padding-left: 0 !important; max-height: 50vh; overflow-y: auto; }

/* Phones only: the bar with "Settings" and "⋯". On wide screens the
   settings box is just part of the tools line. */
.plan-phone-bar { display: none; }
.plan-settings { display: contents; }

@media (max-width: 800px) {
  .plan-tools { position: relative; padding: 6px 16px; gap: 4px 16px; }
  .plan-phone-bar { display: flex; gap: 20px; flex-basis: 100%; }
  #plan-more-button { margin-left: auto; padding: 0 6px; font-size: 1.2rem; line-height: 1; text-decoration: none; }
  .plan-settings { display: none; flex-basis: 100%; flex-direction: column; gap: 6px; padding: 4px 0 6px; }
  .plan-tools.show-settings .plan-settings { display: flex; }
  .plan-buttons {
    display: none;
    position: absolute;
    top: 100%;
    right: 16px;
    z-index: 20;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 4px 0;
    background: var(--paper);
    border: 1px solid var(--ink);
  }
  .plan-buttons .text-button { padding: 8px 16px; text-align: left; }
  .plan-tools.show-more .plan-buttons { display: flex; }
  .plan-message:empty { display: none; }
  .plan-body { display: block; overflow-y: auto; }
  .plan-reqs { border-right: 0; padding: 8px 16px; }
  .plan-grid { padding: 8px 16px 70vh; overflow: visible; }
  /* One year at a time, quarters stacked. */
  .plan-table, .plan-table tbody, .plan-table tr, .plan-table td, .plan-table th { display: block; width: 100%; min-width: 0; }
  .plan-table thead { display: none; }
  .plan-cell { border-left: 0; height: auto; }
  .cell-name { display: block; font-size: 0.85rem; color: var(--muted); }
}
.chip-grade { color: var(--green); font-weight: 600; }
.grade-row select { font: inherit; }
.gpa strong { font-family: var(--serif); font-size: 1.4rem; }
.transcript textarea { width: 100%; font: inherit; font-size: 0.9rem; border: 1px solid var(--dots); background: var(--paper); }
.review-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.review-table th, .review-table td { text-align: left; padding: 3px 6px; border-bottom: 1px dotted var(--dots); }
.review-table input[type="number"] { width: 60px; font: inherit; }
.review-table select { font: inherit; }
.goal-row input { width: 70px; font: inherit; border: 0; border-bottom: 1px solid var(--dots); background: transparent; }
.goal-row select { font: inherit; }
.target strong { font-family: var(--serif); font-size: 1.15rem; }
.ap-row .ap-name { justify-content: flex-start; align-items: baseline; gap: 6px; }
.ap-row.taken .ap-name { font-weight: 600; }
.ap-row[hidden] { display: none; }
.ap-filter input { width: 100%; max-width: 360px; margin: 4px 0 8px; padding: 3px 0; font: inherit; background: transparent; border: 0; border-bottom: 1px solid var(--ink); }
@media (max-width: 800px) { .ap-row { grid-template-columns: 1fr auto; } .ap-result { grid-column: 1 / -1; } }
.chip-assumed { margin-left: 3px; font-weight: 400; font-size: 0.78rem; color: var(--muted); }