html {
  box-sizing: border-box;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

button,
input,
optgroup,
select,
textarea {
  font-family: inherit;
}

body {
  margin: 0;
  height: 100dvh;
  font-family: "Staatliches", sans-serif;
  text-transform: uppercase;
  text-align: center;
  color: #fff;
  overflow: hidden;
}

#container {
  position: relative;
  max-width: 500px;
  margin: 0 auto;
  height: 100%;
}

.bg-gradient {
  background-color: #071a3d;
  background-image: url('assets/images/background.png');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}

.content {
  position: relative;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  --quiz-header-lift-duration: 1.85s;
  --quiz-header-lift-easing: ease-in-out;
  --quiz-blue: #0066ff;
  --quiz-blue-dark: #0050cc;
  --quiz-status-text: #194bbb;
  --quiz-status-percent: #d9d9d9;
  --quiz-gold: #dfc78d;
  --quiz-gold-dark: #cfc07a;
  --quiz-red: #ff5e5e;
  --quiz-red-dark: #e54e4e;
  --quiz-option-bg: #e9e6e6;
  --quiz-grey: #b8c5d9;
  --quiz-card-radius: 18px;
  --font-quiz: "Montserrat", system-ui, sans-serif;
}

/* --- Tap screen --- */

.first-step {
  position: absolute;
  inset: 0;
  z-index: 10;
  width: 100%;
}

.first-step.first-step--hidden {
  display: none;
}

@keyframes pulse-tap-icon {
  0% { transform: translate(-50%, -50%) scale(1); }
  50% { transform: translate(-50%, -50%) scale(1.08); }
  100% { transform: translate(-50%, -50%) scale(1); }
}

.tap-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 99;
  width: 360px;
  max-width: calc(100% - 32px);
  animation: pulse-tap-icon 1.6s ease-in-out infinite;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.tap-icon-text {
  font-size: 7.58vh;
  line-height: 8.29vh;
  margin-top: 1vh;
  color: #fff;
}

.tap-icon img {
  width: auto;
  height: auto;
  max-width: 64px;
  display: block;
  margin: 0 auto;
}

/* --- Header (center → top) --- */

.quiz-header {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 5;
  width: calc(100% - 32px);
  max-width: 420px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.45s ease;
}

.content.header-visible .quiz-header {
  opacity: 1;
}

@keyframes header-move-center-to-top {
  0% {
    top: 50%;
    transform: translate(-50%, -50%);
  }
  100% {
    top: 2.5vh;
    transform: translate(-50%, 0);
  }
}

.content.header-lift .quiz-header {
  animation: header-move-center-to-top var(--quiz-header-lift-duration) var(--quiz-header-lift-easing) forwards;
}

.content.header-at-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding:
    max(2.5vh, env(safe-area-inset-top, 0px))
    14px
    calc(72px + env(safe-area-inset-bottom, 0px));
  overflow-x: hidden;
  overflow-y: auto;
}

.content.header-at-top .quiz-header {
  position: relative;
  left: auto;
  top: auto;
  transform: none;
  animation: none;
  opacity: 1;
  z-index: 25;
  flex-shrink: 0;
}

@media (prefers-reduced-motion: reduce) {
  .content.header-lift .quiz-header {
    animation: none;
  }
  .content.header-at-top .quiz-header {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
  }
}

.quiz-header__logo {
  display: block;
  width: auto;
  height: clamp(72px, 18vw, 110px);
  max-width: min(94px, 22vw);
  margin: 0 auto 10px;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.35s ease;
}

.quiz-header__logo--visible,
.content.header-at-top .quiz-header__logo {
  opacity: 1;
}

.quiz-header__title {
  margin: 0;
  font-family: var(--font-quiz);
  font-weight: 800;
  font-size: 38px;
  line-height: 1;
  letter-spacing: 0;
  text-align: center;
  text-transform: uppercase;
  filter: drop-shadow(0 8px 7.6px rgba(15, 23, 42, 0.5));
  min-height: 0;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.quiz-header__title--visible,
.content.header-lift .quiz-header__title--visible,
.content.header-at-top .quiz-header__title {
  min-height: calc(38px * 3);
  opacity: 1;
}

.quiz-header__title-line {
  margin: 0;
  min-height: 1em;
  color: #fff;
}

.quiz-header__title-line--accent {
  color: #67a8fa;
}

.quiz-header__title-line--soft {
  color: #b9d8ff;
}

.quiz-header__title-line.is-typing::after,
.quiz-splash__text.is-typing::after,
.quiz-question__text.is-typing::after {
  content: "|";
  margin-left: 1px;
  animation: typing-cursor 0.8s step-end infinite;
}

@keyframes typing-cursor {
  50% { opacity: 0; }
}

/* --- Quiz card --- */

.quiz-card-wrap {
  position: relative;
  z-index: 50;
  width: calc(100% - 28px);
  max-width: 460px;
  margin-top: 25px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 32px;
  flex-shrink: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.55s ease;
}

.quiz-card-wrap.quiz-card-wrap--visible {
  opacity: 1;
  pointer-events: auto;
}

.quiz-card {
  background: #fff;
  border-radius: var(--quiz-card-radius);
  padding: 0;
  overflow: hidden;
  color: #0b1f3d;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.quiz-card__progress {
  margin-bottom: 0;
  padding: 14px 16px 12px;
}

.quiz-card__status {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 0 0 8px;
}

.quiz-card__status-label {
  flex: 1 1 auto;
  min-width: 0;
  color: var(--quiz-status-text);
  font-family: var(--font-quiz);
  font-size: 12px;
  font-weight: 700;
  line-height: 27px;
  letter-spacing: 0;
  text-align: center;
}

.quiz-card__status-percent {
  flex: 0 0 auto;
  color: var(--quiz-status-percent);
  font-family: var(--font-quiz);
  font-size: 16px;
  font-weight: 400;
  line-height: 27px;
  letter-spacing: 0;
  text-align: center;
  white-space: nowrap;
}

.quiz-card__progress-track {
  width: 100%;
  height: 9px;
  margin: 0;
  border-radius: 999px;
  background: #e9eef5;
  overflow: hidden;
}

.quiz-card__progress-fill {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: var(--quiz-blue);
  transition:
    width 0.55s cubic-bezier(0.22, 0.85, 0.32, 1),
    background-color 0.25s ease;
}

.quiz-card__progress-fill.is-error {
  background: var(--quiz-red);
}

.quiz-card__progress-fill.is-correct {
  background: var(--quiz-gold);
}

.quiz-card__body {
  min-height: 180px;
  padding: 16px 16px 18px;
}

.quiz-view {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 14px;
}

.quiz-view[hidden] {
  display: none !important;
}

/* Splash */

.quiz-panel-intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
}

.quiz-panel-intro[hidden] {
  display: none !important;
}

.quiz-panel-intro__divider {
  display: block;
  width: 66px;
  height: 7px;
  background: #194bbb;
}

.quiz-panel-heading {
  margin: 0;
  padding: 0 8px;
  font-family: var(--font-quiz);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0;
  text-transform: capitalize;
  color: #fff;
  text-align: center;
  text-shadow: 0 2px 8px rgba(15, 31, 61, 0.45);
}

.quiz-panel-heading[hidden] {
  display: none !important;
}

.quiz-splash__text {
  margin: 0;
  font-family: var(--font-quiz);
  font-size: 16px;
  font-weight: 400;
  line-height: 27px;
  letter-spacing: 0;
  text-transform: none;
  text-align: center;
  color: #334155;
}

.is-layout-pending {
  opacity: 0;
  pointer-events: none;
}

/* Question */

.quiz-question__text {
  margin: 0;
  font-family: var(--font-quiz);
  font-size: clamp(15px, 4vw, 17px);
  font-weight: 500;
  line-height: 1.35;
  text-transform: none;
  color: #0b1f3d;
}

.quiz-view--question {
  gap: 24px;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.quiz-options[hidden] {
  display: none !important;
}

.quiz-option {
  appearance: none;
  width: 100%;
  padding: 8px 12px;
  border: none;
  border-radius: 10px;
  background: var(--quiz-option-bg);
  color: #0b1f3d;
  font-family: var(--font-quiz);
  font-size: 16px;
  font-weight: 400;
  line-height: 27px;
  letter-spacing: 0;
  text-transform: none;
  text-align: center;
  cursor: pointer;
  opacity: 1;
  transform: translateY(0);
  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    font-weight 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.quiz-option--awaiting {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}

@keyframes quiz-option-reveal {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.quiz-option--revealed {
  animation: quiz-option-reveal 0.24s ease forwards;
  pointer-events: auto;
}

.quiz-option.is-selected {
  background: var(--quiz-gold);
  color: #0b1f3d;
  font-weight: 700;
}

.quiz-option.is-correct {
  background: var(--quiz-gold);
  color: #0b1f3d;
  font-weight: 700;
}

.quiz-option.is-wrong {
  background: var(--quiz-red);
  color: #0b1f3d;
  font-weight: 700;
}

.quiz-option:disabled {
  cursor: default;
  opacity: 1;
}

/* Win */

.quiz-win__text {
  margin: 8px 0 4px;
  font-family: var(--font-quiz);
  font-size: clamp(22px, 6vw, 28px);
  font-weight: 500;
  line-height: 1.25;
  text-transform: none;
  color: #0b1f3d;
}

.quiz-win__text strong {
  display: block;
  margin-top: 4px;
  font-size: clamp(28px, 7vw, 36px);
  font-weight: 700;
}

/* Buttons */

.quiz-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 52px;
  margin-top: 4px;
  padding: 0 16px;
  border: none;
  border-radius: 10px;
  font-family: var(--font-quiz);
  font-size: 18px;
  font-weight: 700;
  line-height: 27px;
  letter-spacing: 0;
  text-transform: none;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition:
    background-color 0.2s ease,
    opacity 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.quiz-btn--primary {
  background: var(--quiz-blue);
  color: #fff;
}

.quiz-btn--primary:hover:not(:disabled) {
  background: var(--quiz-blue-dark);
}

.quiz-btn--primary:disabled {
  background: var(--quiz-grey);
  cursor: not-allowed;
  opacity: 0.85;
}

.quiz-btn--submit {
  margin-top: 0;
}

.quiz-btn--submit.is-correct {
  background: var(--quiz-gold);
  color: #0b1f3d;
}

.quiz-btn--submit.is-wrong {
  background: var(--quiz-red);
  color: #0b1f3d;
}

@keyframes quiz-btn-nudge {
  0% {
    transform: rotate(0deg);
  }
  3% {
    transform: rotate(-2.5deg);
  }
  6% {
    transform: rotate(2.5deg);
  }
  9% {
    transform: rotate(-2deg);
  }
  12% {
    transform: rotate(2deg);
  }
  15% {
    transform: rotate(-1.5deg);
  }
  18% {
    transform: rotate(1.5deg);
  }
  21%, 100% {
    transform: rotate(0deg);
  }
}

.quiz-btn--nudge {
  animation: quiz-btn-nudge 4.8s ease-in-out infinite;
  transform-origin: center center;
}

/* Terms */

.site-terms {
  position: absolute;
  left: 50%;
  bottom: calc(8px + env(safe-area-inset-bottom, 0px));
  transform: translateX(-50%);
  z-index: 5;
  width: calc(100% - 24px);
  max-width: 460px;
  margin: 0;
  font-family: var(--font-quiz);
  font-size: 7px;
  line-height: 1.35;
  text-transform: none;
  color: rgba(255, 255, 255, 0.85);
}

/* Correct answer overlay */

.quiz-correct-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  overflow: hidden;
}

.quiz-correct-overlay[hidden] {
  display: none !important;
}

.quiz-correct-overlay__lights,
.quiz-correct-overlay__confetti {
  position: absolute;
  inset: 0;
}

.quiz-correct-overlay__lights {
  z-index: 1;
}

.quiz-correct-overlay__confetti {
  z-index: 2;
}

.quiz-correct-overlay__lights svg,
.quiz-correct-overlay__confetti svg {
  width: 100% !important;
  height: 100% !important;
}

/* Wrong answer overlay */

.quiz-wrong-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  overflow: hidden;
}

.quiz-wrong-overlay[hidden] {
  display: none !important;
}

.quiz-wrong-overlay__lightning {
  position: absolute;
  inset: 0;
}

.quiz-wrong-overlay__lightning svg {
  width: 100% !important;
  height: 100% !important;
}

/* Win overlay */

.quiz-win-overlay {
  position: absolute;
  inset: 0;
  z-index: 20;
  pointer-events: none;
  overflow: hidden;
}

.quiz-win-overlay[hidden] {
  display: none !important;
}

.quiz-win-overlay__lights,
.quiz-win-overlay__confetti {
  position: absolute;
  inset: 0;
}

.quiz-win-overlay__lights {
  z-index: 1;
}

.quiz-win-overlay__confetti {
  z-index: 2;
}

.quiz-win-overlay__lights svg,
.quiz-win-overlay__confetti svg {
  width: 100% !important;
  height: 100% !important;
}

.quiz-money-rain {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 500px;
  z-index: 60;
  pointer-events: none;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.quiz-money-rain[hidden] {
  display: none !important;
}

.quiz-money-rain svg {
  display: block;
  width: 100% !important;
  height: 100% !important;
  max-height: 100dvh;
}

#quiz-win-cta {
  position: relative;
  z-index: 2;
}

@media screen and (max-width: 360px) {
  .quiz-card-wrap {
    width: calc(100% - 16px);
  }

  .quiz-card {
    padding: 0;
  }

  .quiz-card__body {
    padding: 14px 12px 16px;
  }

  .quiz-card__progress {
    padding: 12px 12px 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .tap-icon {
    animation: none;
  }

  .quiz-card-wrap {
    transition: opacity 0.3s ease;
  }

  .quiz-card__progress-fill {
    transition: width 0.2s ease, background-color 0.2s ease;
  }

  .quiz-btn--nudge {
    animation: none;
  }
}