/*
 * ScoreFlow theme layer.
 *
 * The designs carry their palette as inline styles computed in JS. Here the same two
 * schemes live as custom properties keyed off Bootstrap's own [data-bs-theme], so the
 * markup stays clean and switching themes is a single attribute change.
 */

[data-bs-theme='light'] {
  --sf-page-bg: #e9f0fa;
  --sf-card-bg: #ffffff;
  --sf-page-fg: #212529;
  --sf-border: #dee2e6;
  --sf-muted: #adb5bd;
  --sf-cell-fg: #495057;
  --sf-desc-fg: #6c757d;
  --sf-accent: #0d6efd;
  --sf-accent-fg: #ffffff;
  --sf-ok-bg: #d1e7dd;
  --sf-ok-bd: #a3cfbb;
  --sf-ok-icon: #198754;
  --sf-bad-bg: #f8d7da;
  --sf-bad-bd: #f1aeb5;
  --sf-bad-icon: #dc3545;
  --sf-off: #adb5bd;
  --sf-select-bg: #eaf1ff;
}

[data-bs-theme='dark'] {
  --sf-page-bg: #12151a;
  --sf-card-bg: #1c2027;
  --sf-page-fg: #e9ecef;
  --sf-border: #343a40;
  --sf-muted: #6c757d;
  --sf-cell-fg: #adb5bd;
  --sf-desc-fg: #8f99a3;
  --sf-accent: #4c8dff;
  --sf-accent-fg: #0b1220;
  --sf-ok-bg: #12301f;
  --sf-ok-bd: #1f5133;
  --sf-ok-icon: #4ade80;
  --sf-bad-bg: #331418;
  --sf-bad-bd: #5c2029;
  --sf-bad-icon: #fb7185;
  --sf-off: #5a636c;
  --sf-select-bg: rgba(76, 141, 255, 0.14);
}

:root,
[data-bs-theme] {
  --bs-body-bg: var(--sf-card-bg);
  --bs-body-color: var(--sf-page-fg);
  --bs-border-color: var(--sf-border);
  --bs-secondary-color: var(--sf-desc-fg);
  --bs-primary: var(--sf-accent);
  --bs-link-color-rgb: 13, 110, 253;
}

/*
 * The `hidden` attribute must actually hide.
 *
 * Bootstrap's display utilities (.d-flex, .d-grid, …) are declared `!important`, which beats
 * the user-agent's `[hidden] { display: none }`. Any element carrying both stays on screen —
 * which is how the entry page ended up showing the Create and Join forms at the same time.
 * This restores the attribute's meaning everywhere, once.
 */
[hidden] {
  display: none !important;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--sf-page-bg);
  color: var(--sf-page-fg);
  font-family: var(--bs-body-font-family);
}

.sf-mono {
  font-family: ui-monospace, Menlo, Consolas, monospace;
}

/* ------------------------------------------------------------ entry screen */

.sf-entry {
  display: grid;
  grid-template-columns: 560px 1fr;
  min-height: 100vh;
}

.sf-entry-hero {
  background: var(--sf-accent);
  color: var(--sf-accent-fg);
  padding: 56px 52px;
  display: flex;
  flex-direction: column;
}

.sf-entry-hero h1 {
  font-size: 46px;
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.sf-entry-mark {
  width: 44px;
  height: 44px;
  background: var(--sf-accent-fg);
  color: var(--sf-accent);
}

.sf-entry-panel {
  display: flex;
  flex-direction: column;
  padding: 40px 64px;
  min-height: 0;
}

.sf-entry-form {
  max-width: 520px;
  width: 100%;
}

.sf-seg {
  background: var(--sf-page-bg);
  border: 1px solid var(--sf-border);
}

.sf-seg-btn {
  cursor: pointer;
  border: 0;
  background: transparent;
  color: var(--sf-cell-fg);
  font-size: 14.5px;
  font-weight: 500;
}

.sf-seg-btn:hover {
  filter: brightness(0.97);
}

.sf-seg-btn[aria-selected='true'] {
  background: var(--sf-card-bg);
  color: var(--sf-accent);
}

.sf-label {
  font-size: 11px;
  letter-spacing: 0.08em;
}

.sf-recent {
  background: var(--sf-card-bg);
  border: 1px solid var(--sf-border);
  cursor: pointer;
  text-align: left;
  width: 100%;
}

.sf-recent:hover {
  filter: brightness(0.97);
}

.sf-recent[aria-selected='true'] {
  background: var(--sf-select-bg);
  border-color: var(--sf-accent);
}

.sf-recent[aria-selected='true'] .sf-recent-code,
.sf-recent[aria-selected='true'] .sf-recent-tick {
  color: var(--sf-accent);
}

.sf-recent-tick {
  color: transparent;
}

.sf-recent-dashed {
  border-style: dashed;
  background: transparent;
  color: var(--sf-muted);
}

.sf-recent-dashed[aria-selected='true'] {
  background: var(--sf-select-bg);
  border-color: var(--sf-accent);
  color: var(--sf-accent);
}

.sf-code-input {
  font-size: 26px;
  letter-spacing: 0.42em;
  padding: 14px 12px;
  text-transform: uppercase;
}

.sf-hint {
  background: var(--sf-page-bg);
  border: 1px solid var(--sf-border);
}

/* -------------------------------------------------------------- board shell */

/*
 * App shell, not a document: the navbar and the panel footer are always on screen and the
 * card area scrolls between them. The default rubric fits a 1440x860 screen without
 * scrolling at all; a longer custom rubric degrades by scrolling rather than by pushing
 * the presence chips out of sight.
 */
.sf-board {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.sf-board-main {
  flex: 1;
  display: flex;
  min-height: 0;
}

.sf-board-scroll {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow-y: auto;
}

.sf-code-chip {
  border: 1px dashed var(--sf-accent);
  color: var(--sf-accent);
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 13.5px;
  letter-spacing: 0.14em;
}

.sf-cand-btn {
  border: 1px solid transparent;
  background: transparent;
  color: var(--sf-page-fg);
  white-space: nowrap;
}

.sf-cand-btn.show,
.sf-cand-btn[aria-expanded='true'] {
  border-color: var(--sf-border);
  background: var(--sf-page-bg);
}

.sf-cand-menu {
  min-width: 340px;
  border-color: var(--sf-border);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.sf-cand-item {
  cursor: pointer;
}

.sf-cand-item[aria-current='true'] {
  background: var(--sf-page-bg);
}

.sf-cand-item[aria-current='true'] .sf-cand-tick {
  color: var(--sf-accent);
}

.sf-cand-tick {
  color: transparent;
  width: 12px;
}

/* ------------------------------------------------------------- score cards */

.sf-grid-exercise {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.sf-grid-criterion {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  /* Equal-height rows that divide whatever vertical space is left, so the default
     rubric lands on one 1440x860 screen and a longer one degrades by scrolling. */
  grid-auto-rows: minmax(210px, 1fr);
  gap: 12px;
  flex-grow: 1;
  min-height: 0;
}

/* A rubric with many signals scrolls inside its own card rather than pushing the
   score rail off the board. */
.sf-signal-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  flex-grow: 1;
  min-height: 0;
  overflow-y: auto;
}

@media (max-width: 1400px) {
  .sf-grid-criterion {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1100px) {
  .sf-grid-exercise {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .sf-grid-criterion {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* An unscored card is outlined, so what is still missing is visible at a glance. */
.sf-card--unscored {
  border-color: var(--sf-bad-icon) !important;
  box-shadow: 0 0 0 3px var(--sf-bad-bg);
}

/*
 * The score rail takes all the width left beside the average / agreement badge, so the five
 * cells are big click targets rather than a huddle of tiny squares in the corner.
 */
.sf-rail {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 3px;
  flex: 1 1 auto;
  min-width: 0;
}

.sf-cell {
  height: 26px;
  background: var(--sf-card-bg);
  border: 1px solid var(--sf-border);
  border-radius: 0.25rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  color: var(--sf-muted);
  font-weight: 600;
  font-size: 12px;
}

.sf-cell--tall {
  height: 30px;
  font-size: 12.5px;
}

.sf-cell:hover {
  border-color: currentColor;
  opacity: 0.95;
}

.sf-cell[aria-pressed='true'] {
  background: var(--sf-accent);
  border-color: var(--sf-accent);
  color: var(--sf-accent-fg);
}

/* Dashed outline = the score the ticked signals suggest. Never applied automatically. */
.sf-cell--suggested {
  border-style: dashed;
  border-color: var(--sf-accent);
  color: var(--sf-accent);
}

.sf-marks {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  display: flex;
  gap: 4px;
  justify-content: center;
  pointer-events: none;
}

.sf-mark {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.sf-mark--sm {
  width: 5px;
  height: 5px;
}

.sf-signal {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  width: 100%;
  cursor: pointer;
  font-size: 12px;
  line-height: 1.3;
  text-align: left;
  padding: 3px 8px;
  margin-bottom: 3px;
  border: 1px solid var(--sf-border);
  border-radius: 0.25rem;
  background: var(--sf-card-bg);
  color: var(--sf-desc-fg);
}

.sf-signal:hover {
  filter: brightness(0.97);
}

.sf-signal[aria-pressed='true'] {
  color: var(--sf-page-fg);
}

.sf-signal--strong[aria-pressed='true'] {
  background: var(--sf-ok-bg);
  border-color: var(--sf-ok-bd);
}

.sf-signal--weak[aria-pressed='true'] {
  background: var(--sf-bad-bg);
  border-color: var(--sf-bad-bd);
}

.sf-signal-box {
  color: var(--sf-off);
  font-size: 12px;
  margin-top: 2px;
}

.sf-signal--strong[aria-pressed='true'] .sf-signal-box {
  color: var(--sf-ok-icon);
}

.sf-signal--weak[aria-pressed='true'] .sf-signal-box {
  color: var(--sf-bad-icon);
}

.sf-note-btn {
  width: 24px;
  height: 24px;
  line-height: 1;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--sf-desc-fg);
  position: relative;
  flex-shrink: 0;
}

.sf-note-btn[data-has-note='true'] {
  color: var(--sf-accent);
}

.sf-note-dot {
  position: absolute;
  top: 0;
  right: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: transparent;
}

.sf-note-btn[data-has-note='true'] .sf-note-dot {
  background: var(--sf-accent);
}

.sf-mine-mark {
  font-size: 28px;
  line-height: 1;
  color: var(--sf-accent);
  font-weight: 700;
}

/* ------------------------------------------------------- comment side panel */

.sf-notes {
  width: 360px;
  flex: none;
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--sf-card-bg);
  border-left: 1px solid var(--sf-border);
}

.sf-notes-draft {
  font-size: 14px;
  line-height: 1.5;
  resize: none;
  flex: 1;
  min-height: 120px;
}

.sf-notes-others {
  border-top: 1px solid var(--sf-border);
  max-height: 300px;
  overflow-y: auto;
}

.sf-note-other {
  border-left: 3px solid var(--sf-border);
  padding-left: 8px;
}

/* ------------------------------------------------------------------ tooltip */

.sf-tip {
  position: fixed;
  z-index: 1080;
  pointer-events: none;
  width: 290px;
  background: var(--sf-card-bg);
  color: var(--sf-page-fg);
  border: 1px solid var(--sf-border);
  border-radius: 8px;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.25);
  padding: 10px 12px;
}

.sf-tip[hidden] {
  display: none;
}

.sf-tip--note {
  width: 320px;
}

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

.sf-panel-bar {
  background: var(--sf-card-bg);
  border-top: 1px solid var(--sf-border);
}

.sf-chip {
  font-size: 11.5px;
  border: 1px solid;
}

/* Offline managers stay legible but recede. */
.sf-chip[data-online='false'] {
  opacity: 0.5;
}

.sf-legend-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}

/* -------------------------------------------------------------- rubric page */

.sf-rubric-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.sf-template-row {
  cursor: pointer;
}

.sf-template-row[aria-selected='true'] {
  border-color: var(--sf-accent) !important;
  background: var(--sf-select-bg);
}

.sf-signal-input {
  font-size: 13px;
}

.sf-drag-note {
  font-size: 11.5px;
}

/* Utility: a button that should look like plain text. */
.sf-plain {
  border: 0;
  background: transparent;
  padding: 0;
  color: inherit;
}

.sf-restore-code {
  font-family: ui-monospace, Menlo, Consolas, monospace;
  font-size: 28px;
  letter-spacing: 0.34em;
  color: var(--sf-accent);
  flex: 1;
  text-align: center;
}

.sf-restore-box {
  background: var(--sf-page-bg);
  border: 1px dashed var(--sf-accent);
}

.sf-toast-stack {
  position: fixed;
  bottom: 16px;
  right: 16px;
  z-index: 1090;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

@media (max-width: 900px) {
  .sf-entry {
    grid-template-columns: 1fr;
  }
  .sf-entry-hero {
    padding: 32px 28px;
  }
  .sf-entry-hero h1 {
    font-size: 32px;
  }
  .sf-entry-panel {
    padding: 24px 28px 40px;
  }
  .sf-notes {
    width: 300px;
  }
}