/* Quizcast — a lab-instrument palette, not a game show.
   Ground: deep petrol. Answers: a four-channel recording montage. */

:root {
  --ink:    #0E1D27;
  --panel:  #16303E;
  --raise:  #1D3D4E;
  --line:   rgba(143,166,178,.22);
  --bone:   #E8E4DB;
  --dim:    #8FA6B2;
  --ch1:    #D6336C;
  --ch2:    #15A9A6;
  --ch3:    #F2C14E;
  --ch4:    #8B7BC4;
  --sans:   "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --cond:   "IBM Plex Sans Condensed", "IBM Plex Sans", system-ui, sans-serif;
  --mono:   "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --pad:    clamp(14px, 3vw, 32px);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--ink);
  color: var(--bone);
  font-family: var(--sans);
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

.eyebrow {
  font-family: var(--cond);
  font-weight: 600;
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--dim);
}

:focus-visible { outline: 2px solid var(--ch3); outline-offset: 3px; }

/* ========================= STUDENT ======================================== */

.play { min-height: 100dvh; display: flex; flex-direction: column; padding: var(--pad); gap: 14px; }
/* uiOutput wraps the body in its own div, so the column lives here. */
.play > .shiny-html-output { flex: 1; display: flex; flex-direction: column; gap: 14px; }

.gate { flex: 1; display: grid; place-items: center; }
.gatecard { width: min(420px, 100%); text-align: center; }
.wordmark {
  font-family: var(--cond); font-weight: 700;
  font-size: clamp(2.4rem, 12vw, 3.4rem);
  letter-spacing: -.02em; line-height: 1;
}
.wordmark::after {
  content: ""; display: block; height: 3px; width: 56px;
  margin: 14px auto 0; background: var(--ch2);
}
.gatelead { color: var(--dim); margin: 18px 0 24px; font-size: 1rem; }

.aliasinput {
  width: 100%; padding: 16px 18px; font-size: 1.15rem;
  font-family: var(--sans); color: var(--bone);
  background: var(--panel); border: 1px solid var(--line);
  border-radius: 3px; margin-bottom: 12px;
}
.aliasinput::placeholder { color: #5E7784; }

.bigbtn, .play .btn:not(.opt) {
  width: 100%; padding: 17px; border: 0; border-radius: 3px;
  background: var(--ch2); color: var(--ink);
  font-family: var(--cond); font-weight: 700; font-size: 1.1rem;
  letter-spacing: .06em; text-transform: uppercase; cursor: pointer;
}
.notice { margin-top: 14px; color: var(--ch3); font-size: .92rem; }

.playbar {
  display: flex; justify-content: space-between; align-items: baseline;
  padding-bottom: 10px; border-bottom: 1px solid var(--line);
}
.who { font-weight: 600; font-size: .98rem; }
.score { color: var(--ch2); font-size: 1.05rem; font-weight: 600; }

.timer { height: 5px; background: var(--panel); overflow: hidden; }
.timerfill {
  height: 100%; width: 100%; background: var(--ch3);
  transform-origin: left; animation: drain linear forwards;
}
@keyframes drain { from { transform: scaleX(1); } to { transform: scaleX(0); } }

.qmini { flex: 0 0 auto; font-size: 1.02rem; line-height: 1.45; color: var(--bone); }
.qmini p { margin: 0; }

.optgrid { display: flex; flex-direction: column; gap: 10px; }

.opt {
  display: flex; align-items: center; gap: 14px; width: 100%;
  padding: 16px 18px; text-align: left; cursor: pointer;
  background: var(--panel); color: var(--bone);
  border: 1px solid var(--line); border-left: 5px solid var(--cc);
  border-radius: 3px; font-family: var(--sans); font-size: 1.02rem;
  line-height: 1.35; white-space: normal;
  transition: background .12s ease, transform .12s ease;
}
.opt > .action-label {
  display: flex; align-items: center; gap: 14px; width: 100%; text-align: left;
}
.opt:active { transform: scale(.985); }
.ch1 { --cc: var(--ch1); } .ch2 { --cc: var(--ch2); }
.ch3 { --cc: var(--ch3); } .ch4 { --cc: var(--ch4); }
.letter {
  flex: 0 0 auto;
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: 2px;
  background: var(--cc); color: var(--ink);
  font-size: 1.3rem; font-weight: 700; line-height: 1;
}
.opttext { flex: 1; }

.multinote { color: var(--dim); font-size: .88rem; }

.wait { flex: 1; display: flex; flex-direction: column; align-items: center;
        justify-content: center; gap: 14px; text-align: center; color: var(--dim); }
.pulse {
  width: 12px; height: 12px; border-radius: 50%; background: var(--ch2);
  animation: beat 1.6s ease-in-out infinite;
}
@keyframes beat { 0%,100% { opacity: .25; transform: scale(.8); }
                  50%     { opacity: 1;   transform: scale(1.15); } }
.rankbig { font-size: clamp(3.5rem, 22vw, 6rem); font-weight: 600; color: var(--bone); line-height: 1; }
.ranklead { margin: 0; }
.lockedtag {
  font-size: 2.4rem; font-weight: 600; color: var(--ch2);
  border: 1px solid var(--line); padding: 12px 26px; border-radius: 3px;
}

.verdict { flex: 1; display: flex; flex-direction: column; align-items: center;
           justify-content: center; gap: 10px; text-align: center; }
.verdicttag {
  font-family: var(--cond); font-weight: 700; text-transform: uppercase;
  letter-spacing: .12em; font-size: 1.5rem;
}
.hit .verdicttag { color: var(--ch2); }
.miss .verdicttag { color: var(--dim); }
.gain { font-size: 3.2rem; font-weight: 600; color: var(--bone); }
.verdict p { color: var(--dim); margin: 0; }

/* What the projector shows that the phone keeps folded away. */
.more { border: 1px solid var(--line); border-radius: 3px; background: var(--panel); }
.more > summary {
  list-style: none; cursor: pointer; padding: 12px 14px;
  font-family: var(--cond); font-weight: 600; font-size: .9rem;
  letter-spacing: .08em; text-transform: uppercase; color: var(--ch2);
  display: flex; justify-content: space-between; align-items: center;
}
.more > summary::-webkit-details-marker { display: none; }
.more > summary::after { content: "Show"; font-family: var(--mono); font-size: .75rem;
                         letter-spacing: 0; text-transform: none; color: var(--dim); }
.more[open] > summary::after { content: "Hide"; }
.morebody { padding: 0 14px 14px; display: flex; flex-direction: column; gap: 12px;
            font-size: .98rem; line-height: 1.5; }
.morebody .qcontext, .morebody .cardbody { color: var(--dim); font-size: .95rem; }
.morebody .slidelead { font-size: 1rem; }
.morebody .slidelist li { font-size: 1rem; }
.morebody .cards { grid-template-columns: 1fr; }
.morebody .card { padding: 12px; }
.morebody .cardhead { font-size: 1.05rem; }
.morebody .callout { font-size: 1rem; padding: 10px 14px; }
.morebody .media, .morebody .media img { max-height: none; max-width: 100%; }
.morebody .explain { font-size: .95rem; }
.keylist { display: flex; flex-direction: column; gap: 8px; }
.keyrow { display: flex; align-items: center; gap: 12px; }
.keyrow .letter { width: 28px; height: 28px; font-size: 1rem; }
.slidephone { display: flex; flex-direction: column; gap: 12px; }
.slidemini { font-family: var(--cond); font-weight: 700; font-size: 1.5rem;
             line-height: 1.15; margin: 0; }
.slidephone .eyebrow { color: var(--ch3); }

/* ========================= PROJECTOR ===================================== */

.present { min-height: 100dvh; position: relative; overflow: hidden; }
.stage {
  padding: clamp(24px, 3.5vw, 56px);
  padding-bottom: 120px;
  display: flex; flex-direction: column; gap: clamp(14px, 2vw, 26px);
  min-height: 100dvh;
}
.stagehead { display: flex; gap: 28px; align-items: baseline;
             border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.stagehead .eyebrow:nth-child(2) { flex: 1; color: var(--bone); }

/* The prompt zone eats whatever room the options leave, so the options sit at
   the same height on every question whether or not there is media beside it. */
.qzone {
  flex: 1 1 auto; min-height: 0; overflow: hidden;
  display: flex; align-items: flex-start; gap: clamp(20px, 3vw, 48px);
}
.qmain { flex: 1 1 auto; min-width: 0;
         display: flex; flex-direction: column; gap: clamp(12px, 1.5vw, 20px); }
.qzone.withmedia .qmain,
.qzone.withmedia .media { flex: 0 0 50%; min-width: 0; }

.qtext {
  font-family: var(--cond); font-weight: 700;
  font-size: clamp(2rem, 4.2vw, 3.6rem);
  line-height: 1.08; letter-spacing: -.015em; margin: 0;
}
.qtext p { margin: 0; }
.qzone.withmedia .qtext { max-width: 22ch; }
.qcontext { color: var(--dim); font-size: clamp(1rem, 1.4vw, 1.35rem); max-width: 60ch; }
.qcontext a { color: var(--ch2); }
/* Half the viewport, hard. A tall figure allowed to size itself would push
   the options off the bottom of the projector. */
.media { align-self: flex-start; max-height: 50vh; display: flex;
         align-items: flex-start; justify-content: center; }
.media img { max-height: 50vh; max-width: 100%; object-fit: contain; border-radius: 3px; }

.optgrid.big {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(10px, 1.4vw, 18px); margin-top: auto; flex: 0 0 auto;
}
.optgrid.big .opt {
  font-size: clamp(1.05rem, 1.6vw, 1.5rem); padding: clamp(16px, 1.8vw, 26px);
  position: relative; cursor: default; align-items: flex-start;
}
.optgrid.big .letter {
  width: clamp(34px, 3vw, 46px); height: clamp(34px, 3vw, 46px);
  font-size: clamp(1.15rem, 1.7vw, 1.6rem);
}
.opt.wrong { opacity: .3; }
.opt.right { background: var(--raise); box-shadow: inset 0 0 0 1px var(--ch2); }

.distbar {
  position: absolute; left: 0; right: 0; bottom: 0; height: 22px;
  display: flex; align-items: center;
}
.distfill { height: 100%; background: rgba(143,166,178,.16); transition: width .5s ease; }
.opt.right .distfill { background: rgba(21,169,166,.28); }
.distnum { position: absolute; right: 10px; font-size: .8rem; color: var(--dim); }

.explain {
  border-left: 3px solid var(--ch3); padding-left: 18px;
  color: var(--dim); font-size: clamp(.95rem, 1.25vw, 1.2rem);
  max-width: 80ch; line-height: 1.5;
}
.explain p { margin: 0; }
.explain a { color: var(--ch2); }

/* slides: content the host talks over. Type is sized for the back row. */
.slidestage .stagehead .eyebrow:first-child { color: var(--ch3); }
.slidezone { display: flex; align-items: flex-start; gap: clamp(20px, 3vw, 48px); }
.slidemain { flex: 1 1 auto; min-width: 0; display: flex; flex-direction: column;
             gap: clamp(14px, 1.8vw, 24px); }
.slidezone.withmedia .slidemain, .slidezone.withmedia .media { flex: 0 0 50%; min-width: 0; }
.slidetitle { max-width: 30ch; }
.slidelead { font-size: clamp(1.2rem, 2vw, 1.9rem); line-height: 1.35; max-width: 56ch; }
.slidelead p { margin: 0 0 .5em; }
.slidelead a, .cardbody a, .callout a { color: var(--ch2); }
.slidelist { list-style: none; margin: 0; padding: 0;
             display: flex; flex-direction: column; gap: clamp(10px, 1.2vw, 16px); }
.slidelist li { position: relative; padding-left: 1.4em;
                font-size: clamp(1.15rem, 1.9vw, 1.8rem); line-height: 1.35; }
.slidelist li::before { content: ""; position: absolute; left: 0; top: .5em;
                        width: .55em; height: .55em; background: var(--ch2); }
.cards { display: grid; gap: clamp(12px, 1.6vw, 22px); }
.cards.n2 { grid-template-columns: 1fr 1fr; }
.cards.n3 { grid-template-columns: repeat(3, 1fr); }
.card { background: var(--panel); border: 1px solid var(--line);
        border-top: 4px solid var(--cc); border-radius: 3px;
        padding: clamp(14px, 1.6vw, 24px); display: flex; flex-direction: column; gap: 8px; }
.cardhead { font-family: var(--cond); font-weight: 700;
            font-size: clamp(1.2rem, 2vw, 1.9rem); line-height: 1.1; }
.cardbody { color: var(--dim); font-size: clamp(1rem, 1.5vw, 1.45rem); line-height: 1.4; }
.cardbody p { margin: 0 0 .4em; } .cardbody p:last-child { margin-bottom: 0; }
.callout { border-left: 5px solid var(--ch3); background: var(--raise);
           padding: clamp(12px, 1.4vw, 18px) clamp(16px, 2vw, 26px);
           font-size: clamp(1.15rem, 1.9vw, 1.8rem); line-height: 1.35; }
.callout p { margin: 0; }
/* Held for a later press. Hidden rather than absent, so nothing moves when it
   arrives. Only the projector ever has these; the phone is sent shown parts. */
.slidestage .hid { visibility: hidden; }
.titlecard { justify-content: center; }
.titlecard .slidetitle { font-size: clamp(3rem, 8vw, 7rem); max-width: 18ch; }
.titlecard .slidelead { color: var(--dim); }

/* lobby */
.lobbystage { display: grid; grid-template-columns: 1.4fr 1fr;
              grid-template-rows: 1fr auto; gap: 40px; align-items: center; }
.lobbyleft { display: flex; flex-direction: column; gap: 18px; }
.joinhead { font-family: var(--cond); font-weight: 700; margin: 0;
            font-size: clamp(2rem, 4vw, 3.4rem); line-height: 1.05; }
.joinurl {
  font-size: clamp(1.1rem, 2.1vw, 1.9rem); color: var(--ch2);
  border: 1px solid var(--line); padding: 14px 20px; border-radius: 3px;
  display: inline-block; word-break: break-all;
}
.counter { display: flex; align-items: baseline; gap: 12px; }
.cnum { font-size: clamp(3rem, 7vw, 6rem); font-weight: 600; line-height: 1; }
.clab { color: var(--dim); text-transform: uppercase; letter-spacing: .14em; font-size: .9rem; }
.lobbyright { justify-self: center; }
.roster { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px;
  font-size: .92rem; color: var(--dim);
  animation: arrive .4s ease both;
}
@keyframes arrive { from { opacity: 0; transform: translateY(6px); } }

/* standings + final */
.boardlist, .restlist { display: flex; flex-direction: column; gap: 10px; }
.boardrow { display: grid; grid-template-columns: 44px 1fr 3fr auto;
            gap: 18px; align-items: center; font-size: clamp(1rem, 1.6vw, 1.5rem); }
.rbar { height: 12px; background: var(--panel); }
.rbarfill { height: 100%; background: var(--ch2); transition: width .6s ease; }
.rrank { color: var(--dim); }
.rscore { color: var(--ch2); }

.finalstage { justify-content: center; align-items: center; text-align: center; }
.winners { display: flex; gap: 48px; flex-wrap: wrap; justify-content: center; }
.winner { display: flex; flex-direction: column; align-items: center; gap: 8px;
          animation: rise .7s cubic-bezier(.2,.8,.2,1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(28px); } }
.crown {
  font-family: var(--mono); font-size: 1rem; color: var(--ink);
  background: var(--ch3); width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; font-weight: 600;
}
.wname { font-family: var(--cond); font-weight: 700; font-size: clamp(2.4rem, 6vw, 5rem); line-height: 1; }
.wscore { font-size: clamp(1.2rem, 2vw, 1.8rem); color: var(--ch2); }
.restrow { display: grid; grid-template-columns: 44px 1fr auto; gap: 20px;
           font-size: 1.1rem; min-width: min(520px, 80vw); text-align: left; }

/* signature: the response trace */
.trace { position: fixed; left: 0; right: 0; bottom: 0; width: 100%; height: 90px;
         pointer-events: none; }

.audiobar {
  position: fixed; right: 18px; top: 18px; display: flex; align-items: center;
  gap: 10px; opacity: .28; transition: opacity .2s ease;
}
.audiobar:hover, .audiobar:focus-within { opacity: 1; }
.audiobtn {
  background: transparent; border: 1px solid var(--line); color: var(--dim);
  padding: 7px 14px; border-radius: 3px; cursor: pointer;
  font-family: var(--mono); font-size: .78rem;
}
.vol { width: 96px; accent-color: var(--ch2); }

/* ========================= HOST ========================================== */

.admin { padding: 22px; }
.adminwrap { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
             max-width: 1400px; margin: 0 auto; align-items: start; }
.panel { background: var(--panel); border: 1px solid var(--line);
         border-radius: 4px; padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.statusline { display: flex; gap: 18px; flex-wrap: wrap; font-size: .82rem; color: var(--dim); }
.peek { font-size: 1.05rem; font-weight: 500; line-height: 1.35; }
.peek p { margin: 0; }
.peekkey { color: var(--ch3); font-size: .85rem; }
/* Presenter notes: the host panel is the only place these are rendered. */
.hostnotes { border-left: 3px solid var(--ch3); padding-left: 12px;
             color: var(--dim); font-size: .92rem; line-height: 1.45; }
.hostnotes p { margin: 0 0 .5em; }
.panel > .shiny-html-output > * + * { margin-top: 14px; }
.ctlrow { display: flex; gap: 10px; flex-wrap: wrap; }

.ctl, .admin .btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none;
  padding: 12px 18px; border: 1px solid var(--line); border-radius: 3px;
  background: var(--raise); color: var(--bone); cursor: pointer;
  font-family: var(--cond); font-weight: 600; font-size: .92rem;
  letter-spacing: .05em; text-transform: uppercase;
}
.ctl.primary { background: var(--ch2); color: var(--ink); border-color: var(--ch2); }
.ctl.quiet { background: transparent; color: var(--dim); }
.muted { color: var(--dim); font-size: .92rem; }
.warn { color: var(--ch3); font-size: .88rem; line-height: 1.4; }
.hint { color: var(--dim); font-size: .82rem; line-height: 1.4; }
.note { color: var(--ch2); font-size: .88rem; line-height: 1.4; }
.admin textarea.form-control { font-family: var(--mono); font-size: .82rem;
                               line-height: 1.5; resize: vertical; }
/* fileInput is a "Browse..." label over an off-screen native input plus a
   readonly text box; both pick up .admin .btn and .admin .form-control. The
   progress bar is Bootstrap's own and a quiz is a few KB, so it only ever
   flashes — the result line below says what actually happened. */
.admin .input-group { display: flex; }
.admin .input-group .btn-file { white-space: nowrap; }
.admin .progress { display: none; }
.links { font-size: .82rem; color: var(--dim); }
.linkrow { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.links code { color: var(--ch2); font-family: var(--mono); word-break: break-all; }

.rosterlist { display: flex; flex-direction: column; gap: 6px;
              max-height: 46vh; overflow-y: auto; }
.rosterrow { display: grid; grid-template-columns: 32px 1fr auto;
             gap: 12px; font-size: .95rem; padding: 5px 0;
             border-bottom: 1px solid var(--line); }
.rosterrow .mono:first-child { color: var(--dim); }
.rosterrow .mono:last-child { color: var(--ch2); }

/* tame Bootstrap */
.admin .form-group, .play .form-group { margin: 0; }
.admin label, .play label { color: var(--dim); font-size: .82rem;
  font-family: var(--cond); letter-spacing: .1em; text-transform: uppercase; }
.admin .form-control, .admin select {
  background: var(--ink); color: var(--bone);
  border: 1px solid var(--line); border-radius: 3px; padding: 10px; width: 100%;
}
.play .checkbox label, .play .shiny-options-group label {
  text-transform: none; letter-spacing: 0; font-family: var(--sans);
  font-size: 1.02rem; color: var(--bone);
}
.play .shiny-options-group { display: flex; flex-direction: column; gap: 8px; }
/* Shiny caps input containers at 300px; the phone wants the full width. */
.play .shiny-input-container:not(.shiny-input-container-inline) { width: 100%; }
.play .checkbox { background: var(--panel); border: 1px solid var(--line);
                  border-radius: 3px; padding: 12px 14px; margin: 0; }

@media (max-width: 900px) {
  .optgrid.big { grid-template-columns: 1fr; }
  .cards.n2, .cards.n3 { grid-template-columns: 1fr; }
  .slidezone.withmedia { flex-direction: column; }
  .lobbystage { grid-template-columns: 1fr; }
  .qzone.withmedia { flex-direction: column; }
  .qzone.withmedia .qmain, .qzone.withmedia .media { flex: 0 1 auto; }
  .qzone.withmedia .qtext { max-width: none; }
  .media img { max-height: 32vh; }
}

/* Shiny's disconnect overlay dims the page and eats every tap, which on a
   just-unlocked phone is indistinguishable from a crash. quiz.js runs the real
   recovery, so this gets out of the way. */
#shiny-disconnected-overlay { display: none !important; }

/* Something to read while the rest of the room decides. Deliberately quiet:
   it sits under the locked-in confirmation, not in place of it. */
.trivia {
  margin: 14px auto 0; max-width: 34ch;
  color: var(--dim); font-size: .95rem; line-height: 1.5;
}
.trivia p { margin: 0; }
.trivia a { color: var(--ch2); }

.reconnect {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 9998;
  padding: 14px 18px; text-align: center;
  background: var(--raise); color: var(--dim);
  border-top: 1px solid var(--line);
  font-family: var(--cond); font-size: .9rem;
  letter-spacing: .06em; text-transform: uppercase;
}
.reconnect.tappable { background: var(--ch2); color: var(--ink); cursor: pointer; }

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