/* ─────────────────────────────────────────────
   ORBITA — Quiz v2 · стеклянная карточка
   ───────────────────────────────────────────── */

.quiz {
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.quiz::before {
  content: "";
  position: absolute;
  top: -15%;
  left: 50%;
  transform: translateX(-50%);
  width: 70vw;
  height: 70vw;
  max-width: 860px;
  max-height: 860px;
  background: radial-gradient(circle, rgba(110,92,255,0.08), transparent 62%);
  pointer-events: none;
}

.quiz__header {
  text-align: center;
  margin-bottom: clamp(2.5rem, 4.5vw, 4rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  z-index: 1;
}
.quiz__heading { margin-bottom: var(--sp-4); }
.quiz__subheading {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.42);
}

/* ── Card ── */
.quiz__card {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin-inline: auto;
  padding: clamp(1.5rem, 3.5vw, 3rem);
  background: linear-gradient(170deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow:
    0 40px 90px -40px rgba(0,0,0,0.7),
    inset 0 1px 0 rgba(255,255,255,0.08);
}

/* ── Progress ── */
.quiz__progress-wrap {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  margin-bottom: clamp(1.75rem, 3vw, 2.5rem);
}
.quiz__progress-track {
  flex: 1;
  height: 3px;
  border-radius: 2px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}
.quiz__progress-fill {
  height: 100%;
  width: 4%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--c-accent), var(--c-accent-2));
  box-shadow: 0 0 12px var(--c-accent-glow);
  transition: width 0.6s var(--ease-out);
}
.quiz__progress-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.4);
  white-space: nowrap;
}

/* ── Steps container ── */
.quiz__steps {
  position: relative;
  overflow: hidden;
  transition: height 0.5s var(--ease-out);
}

.quiz__step {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  opacity: 0;
  transform: translateX(44px);
  pointer-events: none;
  transition:
    opacity 0.45s var(--ease-out),
    transform 0.45s var(--ease-out);
}
.quiz__step.is-active {
  position: relative;
  opacity: 1;
  transform: translateX(0);
  pointer-events: all;
}
.quiz__step.is-leaving       { opacity: 0; transform: translateX(-44px); }
.quiz__step.is-leaving-back  { opacity: 0; transform: translateX(44px); }
.quiz__step.is-entering-back { transform: translateX(-44px); }
.quiz__step.is-entering-back.is-active { transform: translateX(0); }

.quiz__question {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.7rem);
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: var(--sp-6);
  line-height: 1.3;
}
.quiz__sub {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.42);
  margin: -1rem 0 var(--sp-6);
}

/* ── Options ── */
.quiz__options { display: grid; gap: 0.8rem; }
.quiz__options--2col { grid-template-columns: 1fr 1fr; }

.quiz-opt {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: 1.05rem 1.2rem;
  text-align: left;
  background: rgba(255,255,255,0.025);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition:
    border-color var(--dur-mid) var(--ease-out),
    background var(--dur-mid) var(--ease-out),
    transform var(--dur-mid) var(--ease-spring),
    box-shadow var(--dur-mid) var(--ease-out);
}
.quiz-opt:hover {
  border-color: rgba(110,92,255,0.4);
  background: rgba(110,92,255,0.06);
  transform: translateY(-2px);
}
.quiz-opt.is-selected {
  border-color: var(--c-accent);
  background: var(--c-accent-soft);
  box-shadow: 0 0 24px -8px var(--c-accent-glow);
}

.quiz-opt__icon {
  flex-shrink: 0;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  color: rgba(255,255,255,0.65);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: color var(--dur-mid) var(--ease-out), border-color var(--dur-mid) var(--ease-out), box-shadow var(--dur-mid) var(--ease-out);
}
.quiz-opt:hover .quiz-opt__icon,
.quiz-opt.is-selected .quiz-opt__icon {
  color: var(--c-accent-hover);
  border-color: rgba(110,92,255,0.4);
}
.quiz-opt.is-selected .quiz-opt__icon { box-shadow: 0 0 18px -6px var(--c-accent-glow); }

.quiz-opt__icon--text {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
}

.quiz-opt__body {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}
.quiz-opt__label {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.35;
}
.quiz-opt__hint {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
}

.quiz-opt__check {
  margin-left: auto;
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.16);
  color: transparent;
  transition:
    background var(--dur-mid) var(--ease-out),
    color var(--dur-mid) var(--ease-out),
    border-color var(--dur-mid) var(--ease-out),
    transform var(--dur-mid) var(--ease-spring);
}
.quiz-opt.is-selected .quiz-opt__check {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-white);
  transform: scale(1.05);
}

/* ── Final step ── */
.quiz__final-header {
  text-align: center;
  margin-bottom: var(--sp-8);
}
.quiz__final-icon {
  display: inline-flex;
  margin-bottom: var(--sp-4);
  filter: drop-shadow(0 0 14px var(--c-accent-glow));
}
.quiz__final-title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: var(--sp-2);
}
.quiz__final-desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  max-width: 46ch;
  margin-inline: auto;
  line-height: 1.65;
}

/* ── Form ── */
.quiz__form { display: flex; flex-direction: column; gap: var(--sp-5); }
.quiz__form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-5);
}
.quiz__field { display: flex; flex-direction: column; gap: 0.45rem; }
.quiz__label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.55);
}
.quiz__label-optional { color: rgba(255,255,255,0.3); font-weight: 400; }

.quiz__input {
  width: 100%;
  padding: 0.9rem 1.1rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--c-white);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  outline: none;
  transition: border-color var(--dur-mid) var(--ease-out), background var(--dur-mid) var(--ease-out), box-shadow var(--dur-mid) var(--ease-out);
}
.quiz__input::placeholder { color: rgba(255,255,255,0.25); }
.quiz__input:focus {
  border-color: var(--c-accent);
  background: rgba(110,92,255,0.05);
  box-shadow: 0 0 0 3px rgba(110,92,255,0.15);
}
.quiz__textarea { resize: vertical; min-height: 84px; }

.quiz__submit { align-self: flex-start; }

.quiz__privacy {
  font-size: var(--text-2xs);
  color: rgba(255,255,255,0.3);
  line-height: 1.5;
}

/* ── Nav ── */
.quiz__nav {
  display: flex;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-top: clamp(1.75rem, 3vw, 2.5rem);
}
.quiz__btn-prev, .quiz__btn-next {
  padding: 0.8rem 1.6rem;
  font-size: var(--text-sm);
}

/* ── Success ── */
.quiz__success {
  text-align: center;
  padding: clamp(2rem, 5vw, 4rem) 1rem;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.quiz__success.is-visible { opacity: 1; transform: translateY(0); }

.quiz__success-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent), var(--c-accent-2));
  box-shadow: 0 0 44px -8px var(--c-accent-glow);
  margin-bottom: var(--sp-6);
  animation: successPop 0.6s var(--ease-spring);
}
@keyframes successPop {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}
.quiz__success-title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: var(--sp-3);
}
.quiz__success-desc {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  line-height: 1.7;
}

/* ══════════════ RESPONSIVE ══════════════ */
@media (max-width: 680px) {
  .quiz__options--2col { grid-template-columns: 1fr; }
  .quiz__form-row { grid-template-columns: 1fr; }
  .quiz__card { padding: 1.25rem; }
  .quiz-opt { padding: 0.9rem 1rem; }
  .quiz-opt__icon { width: 40px; height: 40px; }
  .quiz__submit { align-self: stretch; }
}