* {
  box-sizing: border-box;
}

:root {
  --white: #ffffff;
  --gold: #febe10;
  --gold-dark: #d99b00;
  --navy: #00529f;
  --navy-deep: #001e50;
  --ink: #0b1533;
  --muted: #6b7590;
  --ok: #18b26b;
  --bad: #e5484d;
  --card: rgba(255, 255, 255, 0.97);
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", "SN Pro", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 520px at 50% -8%, #fffdf5 0%, rgba(255, 253, 245, 0) 62%),
    linear-gradient(160deg, #fdf9ef 0%, #f7edd8 55%, #f1e3c7 100%);
}

/* Фон: сливочный градиент + водяной знак с эмблемой Реала */
.bg {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.bg__crest {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(92vmin, 780px);
  height: auto;
  transform: translate(-50%, -50%);
  opacity: 0.1;
}

.bg__crest--sm {
  top: auto;
  left: auto;
  right: -6vmin;
  bottom: -9vmin;
  transform: none;
  width: min(48vmin, 360px);
  opacity: 0.11;
}

.app {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  padding: 28px 16px 40px;
}

/* Шапка */
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.brand__crest {
  flex: 0 0 auto;
  filter: drop-shadow(0 6px 14px rgba(0, 0, 0, 0.35));
  animation: float 3.4s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.brand__title {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--navy-deep);
}

.brand__sub {
  font-size: 0.9rem;
  color: var(--gold-dark);
  font-weight: 600;
}

/* Карточки-экраны */
.screen {
  display: none;
  background: var(--card);
  border-radius: 22px;
  padding: 28px 24px;
  box-shadow: 0 24px 60px rgba(0, 15, 50, 0.45);
  animation: pop 0.35s ease;
}

.screen--active {
  display: block;
}

@keyframes pop {
  from { opacity: 0; transform: translateY(14px) scale(0.985); }
  to { opacity: 1; transform: none; }
}

/* Старт */
.start__emoji {
  margin: 0;
  font-size: 3rem;
  text-align: center;
}

.start__title {
  margin: 6px 0 10px;
  text-align: center;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--navy-deep);
}

.start__lead {
  margin: 0 auto;
  max-width: 34rem;
  text-align: center;
  color: var(--muted);
  line-height: 1.55;
}

.start__lead b {
  color: var(--gold-dark);
}

.rules {
  list-style: none;
  padding: 0;
  margin: 20px auto 24px;
  max-width: 24rem;
  display: grid;
  gap: 10px;
}

.rules li {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #f2f6ff;
  border: 1px solid #e2e9f8;
  border-radius: 14px;
  padding: 10px 14px;
  font-size: 0.95rem;
}

.rules__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 6px;
  border-radius: 10px;
  background: var(--navy);
  color: var(--white);
  font-weight: 800;
}

/* Кнопки */
.btn {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 14px;
  padding: 15px 18px;
  font-size: 1.05rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
}

.btn:active {
  transform: translateY(2px) scale(0.99);
}

.btn--gold {
  background: linear-gradient(180deg, var(--gold), var(--gold-dark));
  color: #3a2600;
  box-shadow: 0 8px 20px rgba(254, 190, 16, 0.4);
}

.btn--gold:hover {
  filter: brightness(1.06);
}

.btn--ghost {
  background: transparent;
  border: 2px solid #d9e1f3;
  color: var(--navy);
  margin-top: 10px;
}

.btn--ghost:hover {
  border-color: var(--navy);
}

/* Верх вопроса */
.quiz__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.quiz__counter {
  color: var(--navy);
}

.quiz__score {
  background: #e9fbf1;
  color: var(--ok);
  padding: 5px 10px;
  border-radius: 999px;
}

.progress {
  height: 10px;
  background: #e8edf9;
  border-radius: 999px;
  overflow: hidden;
  margin: 12px 0 20px;
}

.progress__fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--navy), var(--gold));
  border-radius: 999px;
  transition: width 0.4s ease;
}

.quiz__question {
  margin: 0 0 18px;
  font-size: 1.2rem;
  line-height: 1.4;
  color: var(--ink);
}

/* Ответы */
.answers {
  display: grid;
  gap: 10px;
}

.answer {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  text-align: left;
  background: #f5f8ff;
  border: 2px solid #e3e9f8;
  border-radius: 14px;
  padding: 13px 14px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.12s ease, background 0.12s ease, transform 0.1s ease;
}

.answer:hover:not(:disabled) {
  border-color: var(--navy);
  background: #edf3ff;
  transform: translateX(3px);
}

.answer:disabled {
  cursor: default;
}

.answer__letter {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-weight: 800;
  font-size: 0.9rem;
}

.answer--correct {
  border-color: var(--ok);
  background: #e9fbf1;
}

.answer--correct .answer__letter {
  background: var(--ok);
}

.answer--wrong {
  border-color: var(--bad);
  background: #ffeef0;
}

.answer--wrong .answer__letter {
  background: var(--bad);
}

/* Обратная связь */
.feedback {
  margin-top: 18px;
  animation: pop 0.3s ease;
}

.feedback__badge {
  display: inline-block;
  font-weight: 800;
  font-size: 1.05rem;
  padding: 8px 14px;
  border-radius: 12px;
}

.feedback__badge--ok {
  background: #e9fbf1;
  color: var(--ok);
}

.feedback__badge--bad {
  background: #ffeef0;
  color: var(--bad);
}

.feedback__fact {
  margin: 12px 0 16px;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.95rem;
}

.feedback__fact::before {
  content: "💡 ";
}

/* Результат */
.ring {
  --p: 0;
  width: 190px;
  height: 190px;
  margin: 4px auto 18px;
  border-radius: 50%;
  background: conic-gradient(
    var(--gold) calc(var(--p) * 1%),
    #e8edf9 0
  );
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.6s ease;
  box-shadow: 0 14px 34px rgba(254, 190, 16, 0.28);
}

.ring__inner {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: var(--white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.ring__percent {
  font-size: 2.7rem;
  font-weight: 900;
  color: var(--navy);
  line-height: 1;
}

.ring__label {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 6px;
}

.result__title {
  margin: 6px 0 8px;
  text-align: center;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--navy-deep);
}

.result__text {
  margin: 0 auto;
  max-width: 30rem;
  text-align: center;
  color: var(--muted);
  line-height: 1.55;
}

.result__score {
  text-align: center;
  font-weight: 800;
  color: var(--gold-dark);
  font-size: 1.05rem;
}

.share-hint {
  text-align: center;
  color: var(--ok);
  font-weight: 700;
  margin: 10px 0 0;
}

.footer {
  margin-top: 22px;
  text-align: center;
  color: #9a8a63;
  font-weight: 700;
  letter-spacing: 0.04em;
}

/* Чёрный экран вопросов */
#screen-quiz {
  background: #0c0c11;
  color: #f2f3f7;
}

#screen-quiz .quiz__counter {
  color: var(--gold);
}

#screen-quiz .quiz__score {
  background: rgba(24, 178, 107, 0.18);
  color: #4ade97;
}

#screen-quiz .progress {
  background: #24242e;
}

#screen-quiz .quiz__question {
  color: #ffffff;
}

#screen-quiz .answer {
  background: #16161d;
  border-color: #2b2b37;
  color: #e8e9f0;
}

#screen-quiz .answer:hover:not(:disabled) {
  background: #1d1d26;
  border-color: var(--gold);
}

#screen-quiz .answer__letter {
  background: var(--gold);
  color: #2a1c00;
}

#screen-quiz .answer--correct {
  background: rgba(24, 178, 107, 0.16);
  border-color: var(--ok);
}

#screen-quiz .answer--correct .answer__letter {
  background: var(--ok);
  color: #ffffff;
}

#screen-quiz .answer--wrong {
  background: rgba(229, 72, 77, 0.14);
  border-color: var(--bad);
}

#screen-quiz .answer--wrong .answer__letter {
  background: var(--bad);
  color: #ffffff;
}

#screen-quiz .feedback__badge--ok {
  background: rgba(24, 178, 107, 0.16);
  color: #4ade97;
}

#screen-quiz .feedback__badge--bad {
  background: rgba(229, 72, 77, 0.16);
  color: #ff8b8f;
}

#screen-quiz .feedback__fact {
  color: #a7aec4;
}

/* Конфетти */
.confetti {
  position: fixed;
  top: -16px;
  width: 10px;
  height: 16px;
  border-radius: 3px;
  z-index: 50;
  pointer-events: none;
  animation: fall linear forwards;
}

@keyframes fall {
  to {
    transform: translateY(110vh) rotate(720deg);
    opacity: 0.9;
  }
}

@media (max-width: 480px) {
  .brand__title { font-size: 1.3rem; }
  .quiz__question { font-size: 1.08rem; }
  .screen { padding: 22px 16px; }
}