:root {
  --color-primary:     #5B6EF5;
  --color-primary-dark:#4354D4;
  --color-accent:      #F0F2FF;
  --color-bg:          #F7F8FC;
  --color-white:       #FFFFFF;
  --color-text:        #1E1F26;
  --color-text-light:  #6B7280;
  --color-border:      #E4E7F0;
  --color-rating-active: #5B6EF5;
  --color-rating-hover:  #E8EBFF;

  --radius-card:  20px;
  --radius-field: 10px;
  --shadow-card:  0 8px 40px rgba(91,110,245,.10);
  --shadow-popup: 0 20px 60px rgba(0,0,0,.18);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
}

.site-logo {
  position: fixed;
  top: 16px;
  right: 20px;
  z-index: 300;
  background: var(--color-white);
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0,0,0,.12);
  padding: 6px 10px;
  display: flex;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.site-logo.visible {
  opacity: 1;
  pointer-events: all;
}
.site-logo img {
  height: 42px;
  width: auto;
  display: block;
  border-radius: 6px;
  object-fit: contain;
}

.overlay {
  position: fixed; inset: 0;
  background: rgba(10, 12, 30, 0.55);
  backdrop-filter: blur(4px);
  z-index: 100;
  opacity: 0;
  transition: opacity .3s ease;
  pointer-events: none;
}
.overlay.active { opacity: 1; pointer-events: all; }

.popup {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -48%) scale(.95);
  background: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-popup);
  padding: 48px 44px;
  z-index: 200;
  max-width: 480px;
  width: calc(100% - 32px);
  text-align: center;
  opacity: 0;
  transition: opacity .35s ease, transform .35s ease;
  pointer-events: none;
}
.popup.active {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: all;
}

.popup-icon { margin-bottom: 20px; }
.popup-logo {
  height: 72px;
  width: auto;
  object-fit: contain;
  border-radius: 10px;
}

.popup h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
}

.popup p {
  color: var(--color-text-light);
  font-size: .97rem;
  margin-bottom: 32px;
}

.popup p strong { color: var(--color-text); }

.btn-primary {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 14px 36px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: .3px;
  transition: background .2s ease, transform .15s ease, box-shadow .2s ease;
  box-shadow: 0 4px 20px rgba(91,110,245,.35);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(91,110,245,.45);
}
.btn-primary:active { transform: translateY(0); }

.survey-wrapper {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 16px 80px;
}
.survey-wrapper.hidden { display: none; }

.survey-card {
  background: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.survey-header {
  background: var(--color-primary);
  padding: 36px 40px;
  color: #fff;
}
.survey-header h1 { font-size: 1.6rem; font-weight: 700; }
.survey-header p  { opacity: .85; margin-top: 4px; font-size: .95rem; }

.section {
  padding: 36px 40px;
  border-bottom: 1px solid var(--color-border);
}
.section:last-of-type { border-bottom: none; }

.section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 28px;
}

.section-number {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: .9rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}

.section-hint {
  font-size: .85rem;
  color: var(--color-text-light);
  margin-top: -18px;
  margin-bottom: 24px;
}

.field { margin-bottom: 28px; }
.field:last-child { margin-bottom: 0; }

.field > label {
  display: block;
  font-weight: 600;
  font-size: .95rem;
  margin-bottom: 12px;
  color: var(--color-text);
}

select {
  width: 100%;
  padding: 12px 18px;
  border: 1.5px solid var(--color-border);
  border-radius: 50px;
  font-size: .92rem;
  font-family: inherit;
  font-weight: 500;
  color: var(--color-text-light);
  background: var(--color-white);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235B6EF5' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 18px center;
  cursor: pointer;
  transition: border-color .2s, box-shadow .2s, color .2s;
}
select:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background-color: var(--color-accent);
}
select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(91,110,245,.12);
  color: var(--color-text);
}
select option { color: var(--color-text); background: var(--color-white); }

textarea {
  width: 100%;
  padding: 14px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-field);
  font-size: .95rem;
  color: var(--color-text);
  font-family: inherit;
  resize: vertical;
  transition: border-color .2s;
}
textarea:focus { outline: none; border-color: var(--color-primary); }
textarea::placeholder { color: var(--color-text-light); }

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.radio-option {
  display: flex;
  align-items: center;
}
.radio-option input[type="radio"] { display: none; }

.radio-option span {
  padding: 9px 18px;
  border: 1.5px solid var(--color-border);
  border-radius: 50px;
  font-size: .9rem;
  cursor: pointer;
  transition: all .2s ease;
  user-select: none;
  color: var(--color-text-light);
  background: var(--color-white);
}
.radio-option:hover span {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-accent);
}
.radio-option input[type="radio"]:checked + span {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  font-weight: 600;
}

.progress-container {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 40px;
  background: #F7F8FC;
  border-bottom: 1px solid var(--color-border);
}

.progress-track {
  flex: 1;
  height: 8px;
  background: var(--color-border);
  border-radius: 50px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 50px;
  background: linear-gradient(90deg, var(--color-primary), #22C55E);
  transition: width .4s cubic-bezier(.4,0,.2,1);
}

.progress-label {
  font-size: .82rem;
  font-weight: 700;
  color: var(--color-primary);
  min-width: 38px;
  text-align: right;
}

.slider-wrapper { padding: 8px 0 4px; }

.slider-bubble {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-size: .88rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 50px;
  margin-bottom: 14px;
  box-shadow: 0 2px 10px rgba(91,110,245,.3);
}

.age-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 50px;
  background: var(--color-border);
  outline: none;
  cursor: pointer;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-border) 0%);
}

.age-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--color-white);
  border: 3px solid var(--color-primary);
  box-shadow: 0 2px 8px rgba(91,110,245,.35);
  cursor: pointer;
  transition: transform .15s ease;
}
.age-slider::-webkit-slider-thumb:hover { transform: scale(1.2); }
.age-slider::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--color-white);
  border: 3px solid var(--color-primary);
  cursor: pointer;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: .78rem;
  color: var(--color-text-light);
}

.rating-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.rating-btn {
  width: 46px; height: 46px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-field);
  background: var(--color-white);
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-text-light);
  cursor: pointer;
  transition: all .18s ease;
  display: flex; align-items: center; justify-content: center;
}
.rating-btn:hover {
  filter: brightness(.92);
  transform: translateY(-1px);
}
.rating-btn.selected {
  color: #fff !important;
  border-color: transparent !important;
  box-shadow: 0 3px 14px rgba(0,0,0,.18);
  transform: translateY(-2px) scale(1.08);
}

.badge {
  background: var(--color-accent);
  color: var(--color-primary);
  font-size: .72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 50px;
  vertical-align: middle;
  letter-spacing: .5px;
}

.form-footer {
  padding: 32px 40px 40px;
  text-align: center;
  background: var(--color-accent);
}

.confirmation {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 16px;
}
.confirmation.hidden { display: none; }

.confirmation-card {
  background: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 60px 48px;
  text-align: center;
  max-width: 460px;
  animation: popIn .4s ease;
}

.check-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-size: 2rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
  box-shadow: 0 4px 20px rgba(91,110,245,.4);
}

.confirmation-card h2 { font-size: 1.5rem; margin-bottom: 12px; }
.confirmation-card p  { color: var(--color-text-light); }
.redirect-info { margin-top: 14px; font-size: .88rem; }

@keyframes popIn {
  from { transform: scale(.9); opacity: 0; }
  to   { transform: scale(1);  opacity: 1; }
}

@media (max-width: 600px) {
  .survey-header, .section, .form-footer { padding-left: 20px; padding-right: 20px; }
  .popup { padding: 36px 24px; }
  .rating-btn { width: 40px; height: 40px; font-size: .85rem; }
}