:root {
  --stage-w: min(100vw, 56.25vh);
  --stage-h: min(100vh, 177.7778vw);
  --cyan: #12bdf2;
  --cyan-dark: #0698d2;
  --gold: #efb018;
  --gold-dark: #b87a00;
  --panel: rgba(34, 28, 23, .78);
  --white: #fff;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: #101010;
  color: var(--white);
  font-family: Arial, "Microsoft JhengHei", sans-serif;
}

button,
input {
  font-family: inherit;
}

.quiz-app {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: #fff;
}

.quiz-stage {
  position: relative;
  width: var(--stage-w);
  height: var(--stage-h);
  overflow: hidden;
  background: #080503 url("../images/alcon-bg.svg") center / cover no-repeat;
  isolation: isolate;
}

.stage-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 36%, rgba(255, 219, 142, .16), transparent 28%),
    linear-gradient(180deg, rgba(0, 0, 0, .08), rgba(0, 0, 0, .48));
  pointer-events: none;
  z-index: 0;
}

.quiz-screen {
  position: absolute;
  inset: 0;
  display: none;
  z-index: 2;
  padding: calc(var(--stage-h) * .07) calc(var(--stage-w) * .06) calc(var(--stage-h) * .035);
}

.quiz-screen.is-active {
  display: flex;
  flex-direction: column;
}

.home-fab {
  position: absolute;
  top: calc(var(--stage-h) * .058);
  left: calc(var(--stage-w) * .055);
  width: calc(var(--stage-w) * .105);
  aspect-ratio: 1;
  border: 0;
  border-radius: 50%;
  display: none;
  align-items: center;
  justify-content: center;
  background: linear-gradient(180deg, #ffc83c, #d29200);
  box-shadow: 0 10px 24px rgba(0, 0, 0, .32);
  z-index: 5;
}

.home-fab img,
.nav-home img {
  width: 52%;
  height: 52%;
}

.quiz-stage:not(.is-home) .home-fab {
  display: flex;
}

.brand-mark {
  position: absolute;
  top: calc(var(--stage-h) * .06);
  left: calc(var(--stage-w) * .235);
  right: calc(var(--stage-w) * .08);
  z-index: 3;
  line-height: 1.1;
  text-shadow: 0 3px 8px rgba(0, 0, 0, .5);
}

.quiz-stage.is-home .brand-mark {
  display: none;
}

.brand-alcon,
.home-logo,
.panel-brand {
  font-weight: 900;
  letter-spacing: 0;
}

.brand-alcon {
  font-size: calc(var(--stage-w) * .06);
}

.brand-title {
  font-size: calc(var(--stage-w) * .052);
  font-weight: 800;
}

.brand-subtitle {
  font-size: calc(var(--stage-w) * .024);
  color: #d6f5ff;
}

.home-hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: calc(var(--stage-h) * .035);
}

.home-logo {
  font-size: calc(var(--stage-w) * .15);
  margin-bottom: calc(var(--stage-h) * .018);
}

.home-hero h1 {
  margin: 0;
  font-size: calc(var(--stage-w) * .09);
  font-weight: 900;
  line-height: 1.1;
}

.home-hero p {
  margin: calc(var(--stage-h) * .01) 0 calc(var(--stage-h) * .02);
  font-size: calc(var(--stage-w) * .048);
  font-weight: 800;
  line-height: 1.15;
}

.home-hero strong {
  color: var(--cyan);
  font-size: calc(var(--stage-w) * .12);
  display: block;
}

.implant-visual {
  width: calc(var(--stage-w) * .58);
  max-height: calc(var(--stage-h) * .32);
  object-fit: contain;
}

.home-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--stage-w) * .045);
  margin-bottom: calc(var(--stage-h) * .055);
}

.quiz-btn {
  min-height: calc(var(--stage-h) * .065);
  border: 0;
  border-radius: 999px;
  color: #fff;
  font-weight: 900;
  font-size: calc(var(--stage-w) * .042);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, .3), 0 12px 22px rgba(0, 0, 0, .28);
}

.quiz-btn-primary {
  background: linear-gradient(180deg, #23c9f4 0%, #05a7dd 100%);
}

.quiz-btn-primary:active,
.quiz-btn-primary:hover {
  color: #fff;
  background: linear-gradient(180deg, #39d8ff 0%, #0798ca 100%);
}

.glass-panel {
  width: 100%;
  margin: auto 0;
  padding: calc(var(--stage-h) * .05) calc(var(--stage-w) * .06);
  border: 2px solid rgba(255, 234, 188, .38);
  border-radius: calc(var(--stage-w) * .055);
  background: linear-gradient(180deg, rgba(51, 43, 35, .9), rgba(18, 12, 9, .78));
  box-shadow:
    inset 0 0 35px rgba(255, 236, 186, .16),
    0 20px 45px rgba(0, 0, 0, .38);
  backdrop-filter: blur(3px);
}

.profile-panel {
  margin-top: calc(var(--stage-h) * .18);
}

.panel-brand {
  font-size: calc(var(--stage-w) * .06);
  text-align: center;
}

.profile-panel h2 {
  margin: calc(var(--stage-h) * .008) 0 calc(var(--stage-h) * .06);
  font-size: calc(var(--stage-w) * .065);
  font-weight: 900;
  text-align: center;
}

.form-label {
  font-size: calc(var(--stage-w) * .026);
  color: #f7f0e4;
}

.quiz-input {
  min-height: calc(var(--stage-h) * .062);
  border: 1px solid #b58025;
  border-radius: 10px;
  background: rgba(0, 0, 0, .25);
  color: #fff;
  font-size: calc(var(--stage-w) * .033);
}

.quiz-input:focus {
  background: rgba(0, 0, 0, .36);
  color: #fff;
  border-color: #f4bd36;
  box-shadow: 0 0 0 .2rem rgba(244, 189, 54, .18);
}

.profile-note {
  margin: calc(var(--stage-h) * .045) 0 0;
  font-size: calc(var(--stage-w) * .03);
  text-align: center;
  color: #f3eadb;
}

.question-panel {
  margin-top: calc(var(--stage-h) * .115);
  min-height: 0;
  padding: calc(var(--stage-h) * .036) calc(var(--stage-w) * .06) calc(var(--stage-h) * .03);
}

.answer-panel {
  margin-top: calc(var(--stage-h) * .13);
  min-height: calc(var(--stage-h) * .58);
}

.timer-pill {
  width: fit-content;
  min-width: calc(var(--stage-w) * .31);
  min-height: calc(var(--stage-h) * .048);
  margin: 0 auto calc(var(--stage-h) * .026);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: calc(var(--stage-w) * .018);
  background: linear-gradient(180deg, #c9901d, #9f6900);
  color: #fff;
  font-size: calc(var(--stage-w) * .04);
  font-weight: 900;
}

.timer-pill img {
  width: calc(var(--stage-w) * .052);
  height: calc(var(--stage-w) * .052);
}

.question-progress {
  margin-bottom: calc(var(--stage-h) * .012);
  text-align: center;
  color: #f7d891;
  font-size: calc(var(--stage-w) * .03);
}

.question-title,
.answer-question {
  margin: 0 0 calc(var(--stage-h) * .028);
  text-align: center;
  font-size: calc(var(--stage-w) * .04);
  font-weight: 800;
  line-height: 1.45;
}

.option-list {
  display: grid;
  gap: var(--option-gap, calc(var(--stage-h) * .014));
  align-content: start;
}

.option-btn {
  width: 100%;
  min-height: var(--option-min-height, calc(var(--stage-h) * .057));
  border: 0;
  border-radius: var(--option-radius, 12px);
  padding: var(--option-padding-y, calc(var(--stage-h) * .009)) calc(var(--stage-w) * .04);
  background: linear-gradient(180deg, #26c8f4, #079fd5);
  color: #fff;
  font-size: var(--option-font-size, calc(var(--stage-w) * .033));
  font-weight: 900;
  line-height: var(--option-line-height, 1.35);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, .28), 0 8px 18px rgba(0, 0, 0, .24);
  text-align: center;
  overflow-wrap: anywhere;
}

.option-btn.is-selected {
  background: linear-gradient(180deg, #ffd15a, #d88e00);
}

.option-btn.is-history-selected {
  background: linear-gradient(180deg, #74df8c, #159c59);
  box-shadow:
    inset 0 2px 0 rgba(255, 255, 255, .34),
    0 0 0 3px rgba(255, 255, 255, .28),
    0 8px 18px rgba(0, 0, 0, .24);
}

.quiz-submit-multi {
  display: none;
  margin-top: calc(var(--stage-h) * .018);
}

.screen-nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: calc(var(--stage-w) * .035);
  margin-top: auto;
  margin-bottom: calc(var(--stage-h) * .032);
}

.nav-btn,
.nav-home {
  min-height: calc(var(--stage-h) * .055);
  border: 0;
  border-radius: 999px;
  color: #fff;
  font-size: calc(var(--stage-w) * .034);
  font-weight: 900;
  background: linear-gradient(180deg, #ffc83d, #d59200);
  box-shadow: inset 0 2px 0 rgba(255, 255, 255, .3), 0 10px 20px rgba(0, 0, 0, .25);
}

.nav-home {
  width: calc(var(--stage-w) * .12);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.quiz-message {
  min-height: calc(var(--stage-h) * .035);
  margin-top: calc(var(--stage-h) * .018);
  color: #ffd15a;
  font-size: calc(var(--stage-w) * .028);
  text-align: center;
}

.answer-result {
  margin-bottom: calc(var(--stage-h) * .025);
  text-align: center;
  color: #ffd15a;
  font-size: calc(var(--stage-w) * .052);
  font-weight: 900;
}

.answer-choice {
  margin-bottom: calc(var(--stage-h) * .025);
  padding: calc(var(--stage-h) * .018) calc(var(--stage-w) * .035);
  border-radius: 12px;
  background: linear-gradient(180deg, #24c7f3, #069ed4);
  color: #fff;
  font-size: calc(var(--stage-w) * .032);
  font-weight: 800;
  text-align: center;
}

.answer-description {
  max-height: calc(var(--stage-h) * .27);
  overflow: auto;
  color: #fff;
  font-size: calc(var(--stage-w) * .032);
  line-height: 1.65;
  white-space: pre-line;
}

.answer-image-wrap {
  display: none;
  margin-top: calc(var(--stage-h) * .02);
  text-align: center;
}

.answer-image-wrap img {
  max-width: 100%;
  max-height: calc(var(--stage-h) * .2);
  object-fit: contain;
  border-radius: 10px;
}

.finish-panel {
  margin-top: calc(var(--stage-h) * .14);
  text-align: center;
}

.finish-panel h2 {
  margin: 0;
  font-size: calc(var(--stage-w) * .075);
  font-weight: 900;
}

.finish-panel p {
  margin: calc(var(--stage-h) * .018) 0 calc(var(--stage-h) * .035);
  color: #ffe4a8;
  font-size: calc(var(--stage-w) * .035);
  font-weight: 800;
}

.treats-visual {
  width: calc(var(--stage-w) * .72);
  max-height: calc(var(--stage-h) * .31);
  object-fit: contain;
  margin-bottom: calc(var(--stage-h) * .035);
}

.finish-score {
  margin-bottom: calc(var(--stage-h) * .03);
  font-size: calc(var(--stage-w) * .035);
  color: #fff;
}

.legal-copy {
  position: absolute;
  left: calc(var(--stage-w) * .06);
  right: calc(var(--stage-w) * .06);
  bottom: calc(var(--stage-h) * .025);
  margin: 0;
  color: rgba(255, 255, 255, .72);
  font-size: calc(var(--stage-w) * .018);
  line-height: 1.45;
  text-align: center;
}

.loading-mask {
  position: absolute;
  inset: 0;
  z-index: 20;
  display: none;
  place-items: center;
  background: rgba(0, 0, 0, .55);
}

.loading-mask.is-active {
  display: grid;
}

@media (max-width: 576px) {
  .quiz-app {
    background: #080503;
  }
}