:root {
  --bg1: #f6fffb;
  --bg2: #e8fff0;
  --card: rgba(255, 255, 255, 0.92);
  --card2: rgba(255, 255, 255, 0.98);
  --text: rgba(12, 38, 26, 0.92);
  --muted: rgba(12, 38, 26, 0.6);
  --accent: #ff7a45;
  --good: #2fbf71;
  --bad: #ef4444;
  --option-color-1: #cfff00;
  --option-color-2: #ff1a1a;
  --option-color-3: #ff00ff;
  --option-color-4: #00ffff;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  margin: 0;
  font-family: 'Poppins', system-ui, -apple-system, Segoe UI, sans-serif;
  background: radial-gradient(1200px 800px at 70% 10%, rgba(255, 122, 69, 0.22), transparent 60%),
    radial-gradient(900px 600px at 10% 90%, rgba(47, 191, 113, 0.18), transparent 60%),
    linear-gradient(180deg, var(--bg1), var(--bg2));
  color: var(--text);
  zoom: 100%;
}

@media (min-width: 2500px) {
  body {
    zoom: 80%;
  }
}

.mc {
  width: 100vw;
  min-height: 100vh;
  overflow: hidden;
}

.mc-app {
  width: 100vw;
  min-height: 100vh;
  padding: clamp(16px, 2vw, 28px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(14px, 1.6vw, 22px);
}

.mc-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: clamp(10px, 1.2vw, 18px);
  border-radius: 26px;
  background: var(--card);
  border: 1px solid rgba(12, 38, 26, 0.08);
}

.mc-kicker {
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--muted);
}

.mc-h1 {
  margin: 4px 0 0;
  font-size: clamp(1.6rem, 2.1vw, 2.5rem);
  letter-spacing: 0.01em;
}

.mc-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.mc-btn {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  user-select: none;
}

.mc-btn--ghost {
  background: transparent;
  color: var(--text);
  border: 2px solid rgba(12, 38, 26, 0.25);
}

.mc-btn--primary {
  background: var(--accent);
  color: #1a0904;
}

.mc-btn--dark {
  background: rgba(12, 38, 26, 0.08);
  color: var(--text);
  border: 1px solid rgba(12, 38, 26, 0.14);
}

.mc-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.mc-main {
  width: 100%;
  display: grid;
  grid-template-columns: 0.4fr 0.6fr;
  gap: clamp(14px, 1.6vw, 22px);
  align-items: stretch;
}

.mc-left .mc-card {
  display: flex;
  flex-direction: column;
}

.mc-left__footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mc-card {
  height: 100%;
  border-radius: 28px;
  padding: clamp(18px, 2vw, 28px);
  background: var(--card2);
  border: 1px solid rgba(12, 38, 26, 0.08);
  box-shadow: 0 24px 60px rgba(8, 24, 16, 0.12);
}

.mc-label {
  font-size: 0.78rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--muted);
}

.mc-word {
  margin-top: 14px;
  font-size: clamp(2.4rem, 3.6vw, 4.2rem);
  font-weight: 700;
  line-height: 1.1;
  min-height: clamp(120px, 14vh, 200px);
  display: flex;
  align-items: center;
}

.mc-timer {
  margin-top: 8px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}

.mc-timer__value {
  font-size: clamp(2.6rem, 4vw, 3.6rem);
  font-weight: 800;
}

.mc-timer__label {
  font-size: 0.9rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
}

.mc-bonus {
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.mc-bonus__meta {
  color: var(--muted);
  letter-spacing: 0.12em;
}

.mc-feedback {
  margin-top: 14px;
  min-height: 1.6rem;
  font-size: 1.2rem;
  font-weight: 600;
}

.mc-options {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-auto-rows: 1fr;
  gap: clamp(12px, 1.4vw, 18px);
  height: calc(100% - 1.2rem);
  align-items: stretch;
}

.multiple-option {
  border-radius: 22px;
  border: 2px solid rgba(12, 38, 26, 0.12);
  background: rgba(255, 255, 255, 0.85);
  color: var(--text);
  padding: clamp(12px, 1.4vw, 18px);
  font-size: clamp(2.3rem, 3.3vw, 3.8rem);
  font-weight: 700;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: clamp(120px, 15vh, 190px);
  height: 100%;
  cursor: pointer;
  transition: transform 0.14s ease, border-color 0.14s ease, background 0.14s ease;
  position: relative;
  overflow: hidden;
  z-index: 0;
}

.multiple-option::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50px;
  height: 50px;
  clip-path: polygon(0 0, 100% 0, 100% 100%);
  opacity: 0.85;
  z-index: 0;
}

.multiple-option:nth-child(1)::after {
  background: var(--option-color-1);
}
.multiple-option:nth-child(2)::after {
  background: var(--option-color-2);
}
.multiple-option:nth-child(3)::after {
  background: var(--option-color-3);
}
.multiple-option:nth-child(4)::after {
  background: var(--option-color-4);
}

.multiple-option > * {
  position: relative;
  z-index: 1;
}

.multiple-option:hover:not(:disabled) {
  transform: translateY(-4px);
  border-color: rgba(255, 122, 69, 0.65);
  background: rgba(255, 255, 255, 1);
}

.mc-no-hover .multiple-option:hover:not(:disabled) {
  transform: none;
  border-color: rgba(12, 38, 26, 0.12);
  background: rgba(255, 255, 255, 0.85);
}

.multiple-option:disabled {
  cursor: not-allowed;
}

.multiple-option__index {
  font-size: clamp(1.2rem, 1.8vw, 1.8rem);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--muted);
}

.multiple-option__text {
  font-size: clamp(1.92rem, 2.88vw, 3.36rem);
  line-height: 1.28;
  word-break: break-word;
  hyphens: auto;
}

@media (min-width: 1600px) {
  .mc-word {
    font-size: clamp(2.2rem, 3vw, 3.6rem);
    min-height: clamp(110px, 12vh, 180px);
  }

  .multiple-option {
    min-height: clamp(110px, 13vh, 175px);
  }

  .multiple-option__text {
    font-size: clamp(1.76rem, 2.4vw, 2.88rem);
  }
}

@media (min-width: 2200px) {
  .mc-word {
    font-size: clamp(2rem, 2.6vw, 3.2rem);
  }

  .multiple-option__text {
    font-size: clamp(1.6rem, 2.08vw, 2.56rem);
  }
}

.multiple-option--correct {
  border-color: rgba(88, 204, 2, 0.85);
  background: rgba(47, 191, 113, 0.18);
}

.multiple-option--incorrect {
  border-color: rgba(239, 68, 68, 0.85);
  background: rgba(239, 68, 68, 0.14);
}

.multiple-option--dimmed {
  border-color: rgba(12, 38, 26, 0.12);
  background: rgba(12, 38, 26, 0.06);
  color: rgba(12, 38, 26, 0.45);
}


.multiple-start-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 12, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: clamp(16px, 4vw, 24px);
  z-index: 999;
}

.multiple-start-overlay--visible {
  display: flex;
}

.multiple-start-overlay__button {
  border-radius: 999px;
  padding: clamp(16px, 3vw, 20px) clamp(32px, 6vw, 48px);
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  background: var(--accent);
  color: #1a0904;
  border: none;
  font-size: clamp(1.3rem, 2.8vw, 1.5rem);
  cursor: pointer;
  box-shadow: 0 24px 45px rgba(0, 0, 0, 0.45);
}

.mc-bottom {
  display: grid;
  grid-template-columns: auto auto 1fr;
  gap: 14px;
  align-items: center;
  padding: clamp(14px, 1.6vw, 20px);
  border-radius: 26px;
  background: var(--card);
  border: 1px solid rgba(12, 38, 26, 0.08);
}

.mc-stat__label {
  font-size: 0.72rem;
  letter-spacing: 0.38em;
  text-transform: uppercase;
  color: var(--muted);
}

.mc-stat__value {
  font-size: 2.2rem;
  font-weight: 800;
}

.mc-progress {
  text-align: right;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.multiple-prep,
.multiple-celebration {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(8, 24, 16, 0.35);
  z-index: 50;
  padding: 22px;
}

.multiple-prep--active {
  display: flex;
}

.multiple-celebration--hidden {
  display: none;
}

.multiple-celebration--visible {
  display: flex;
}

.multiple-prep__panel,
.multiple-celebration__panel {
  width: min(860px, 92vw);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(12, 38, 26, 0.12);
  box-shadow: 0 26px 70px rgba(8, 24, 16, 0.18);
  padding: clamp(18px, 2vw, 30px);
}

.multiple-prep__label {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

.multiple-prep__timer {
  font-size: 3.4rem;
  font-weight: 900;
  margin: 10px 0;
}

.multiple-prep__status {
  margin: 0;
  color: var(--text);
}

.multiple-celebration__title {
  margin: 0;
  font-size: 2.2rem;
  font-weight: 800;
}

.multiple-celebration__subtitle {
  margin: 6px 0 0;
  color: var(--muted);
}

.multiple-celebration__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 16px;
  color: var(--muted);
}

.multiple-incorrect-list {
  margin-top: 14px;
}

.multiple-incorrect-list__items {
  list-style: none;
  padding: 0;
  margin: 10px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.multiple-incorrect-list__items li {
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
}

.multiple-celebration__actions {
  margin-top: 16px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.multiple-celebration__replay,
.multiple-celebration__retry,
.multiple-celebration__return {
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
}

.multiple-celebration__replay {
  background: var(--good);
  color: #062014;
}

.multiple-celebration__retry {
  background: #0ea5e9;
  color: #071722;
}

.multiple-celebration__review {
  background: #5d4fac;
  color: #fff;
}

.multiple-celebration__return {
  background: var(--accent);
  color: #160703;
  text-decoration: none;
}

@media (max-width: 980px) {
  .mc-main { grid-template-columns: 1fr; }
  .mc-bottom { grid-template-columns: 1fr; text-align: left; }
  .mc-progress { text-align: left; }
}