:root {
  --dark: #252525;
  --light: #f7f7f7;
  --accent-peach: #f8c097;
  --primary: #f3d73d;
  --primary-hover: #e4c82d;
  --secondary: #98dbf8;
  --muted: #6e6e6e;
  --border: #e5e5e5;
  --success: #4a9d5d;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(37, 37, 37, 0.06);
  color-scheme: light;
}

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

html, body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
  background: var(--light);
  color: var(--dark);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ===== Language switcher (fixed top-right) ===== */
.lang-switch {
  position: fixed;
  top: 14px;
  right: 14px;
  display: flex;
  gap: 4px;
  z-index: 10;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  box-shadow: var(--shadow);
}
.lang-btn {
  border: 0;
  background: transparent;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--muted);
  cursor: pointer;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}
.lang-btn.active {
  background: var(--dark);
  color: var(--light);
}
.lang-btn:hover:not(.active) { color: var(--dark); }

/* ===== Layout ===== */
.wrap {
  flex: 1;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  padding: 24px 20px 40px;
  display: flex;
  flex-direction: column;
}

.brand {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--dark);
  margin-top: 16px;
  margin-bottom: 28px;
}
.brand.small { font-size: 14px; margin-top: 8px; margin-bottom: 20px; color: var(--muted); }

/* ===== Screens (hidden by default, shown via .active) ===== */
.screen { display: none; animation: fadeIn 260ms ease; }
.screen.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== Start screen ===== */
#screen-start {
  text-align: center;
  padding-top: 40px;
}
.h1 {
  font-size: 30px;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 14px;
  color: var(--dark);
}
.sub {
  font-size: 16px;
  color: var(--muted);
  margin-bottom: 22px;
}
.hint {
  font-size: 14px;
  color: var(--muted);
  max-width: 460px;
  margin: 0 auto 32px;
  padding: 14px 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ===== Buttons ===== */
.btn {
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.18s, border-color 0.18s, transform 0.1s;
  display: inline-block;
  text-align: center;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--primary);
  color: var(--dark);
}
.btn-primary:hover { background: var(--primary-hover); }
.btn-primary:disabled { background: var(--border); color: var(--muted); cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  color: var(--muted);
  border-color: var(--border);
}
.btn-ghost:hover { color: var(--dark); border-color: var(--dark); }
.btn-ghost:disabled { opacity: 0.4; cursor: not-allowed; }

/* ===== Quiz screen ===== */
.progress-wrap { margin-bottom: 40px; }
.progress-row {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
  letter-spacing: 0.3px;
  text-transform: uppercase;
  font-weight: 600;
}
.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--primary);
  border-radius: 999px;
  transition: width 0.4s cubic-bezier(0.65, 0, 0.35, 1);
}

.question-wrap {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.question-text {
  font-size: 24px;
  line-height: 1.35;
  font-weight: 600;
  color: var(--dark);
  text-align: center;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
}

/* ===== Slider ===== */
.slider-wrap {
  padding: 24px 8px 0;
}
input[type=range]#slider {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
  height: 36px;
}
input[type=range]#slider:focus { outline: none; }

/* Track (WebKit) */
input[type=range]#slider::-webkit-slider-runnable-track {
  height: 8px;
  background: var(--primary);
  border-radius: 999px;
}
/* Thumb (WebKit) */
input[type=range]#slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  height: 28px;
  width: 28px;
  background: #fff;
  border: 3px solid var(--primary);
  border-radius: 50%;
  margin-top: -10px;
  box-shadow: 0 2px 6px rgba(37, 37, 37, 0.2);
  cursor: grab;
  transition: transform 0.12s;
}
input[type=range]#slider::-webkit-slider-thumb:active {
  cursor: grabbing;
  transform: scale(1.12);
}
/* Track (Firefox) */
input[type=range]#slider::-moz-range-track {
  height: 8px;
  background: var(--primary);
  border-radius: 999px;
}
input[type=range]#slider::-moz-range-thumb {
  height: 28px;
  width: 28px;
  background: #fff;
  border: 3px solid var(--primary);
  border-radius: 50%;
  box-shadow: 0 2px 6px rgba(37, 37, 37, 0.2);
  cursor: grab;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  font-size: 13px;
  color: var(--muted);
}
.slider-value {
  font-size: 18px;
  font-weight: 800;
  color: var(--dark);
  min-width: 38px;
  text-align: center;
  padding: 4px 10px;
  background: var(--primary);
  border-radius: 999px;
}

.nav-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 8px;
}
.nav-row .btn { flex: 1; max-width: 220px; }

/* ===== Result screen ===== */
.result-preheading {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 12px;
  font-weight: 700;
  text-align: center;
}
.result-gift-wrap { text-align: center; margin-bottom: 24px; }
.result-category {
  display: inline-block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  background: var(--accent-peach);
  color: var(--dark);
  padding: 5px 14px;
  border-radius: 999px;
  font-weight: 700;
  margin-bottom: 14px;
}
.result-gift {
  font-size: 40px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.8px;
  color: var(--dark);
}
.result-description {
  font-size: 17px;
  line-height: 1.55;
  color: var(--dark);
  text-align: center;
  max-width: 560px;
  margin: 0 auto 32px;
}

.result-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}
.panel {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 18px;
}
.panel-title {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 700;
}
.panel-body {
  font-size: 15px;
  line-height: 1.5;
  color: var(--dark);
}
.panel-nourishes { border-left: 4px solid var(--success); }
.panel-drains { border-left: 4px solid var(--accent-peach); }
.panel-advice { border-left: 4px solid var(--secondary); margin-bottom: 28px; }

/* CTA */
.cta-wrap {
  text-align: center;
  padding: 24px 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
}
.cta-label {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 14px;
}
.cta-primary {
  display: block;
  max-width: 360px;
  margin: 0 auto 10px;
}
.cta-secondary {
  display: inline-block;
  font-size: 14px;
  color: var(--muted);
  text-decoration: underline;
  margin-top: 4px;
}
.cta-secondary:hover { color: var(--dark); }

.result-scores {
  font-size: 13px;
  color: var(--muted);
  padding: 14px 0;
  border-top: 1px solid var(--border);
  margin-bottom: 20px;
}
.result-scores-title {
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
#result-scores {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px 24px;
}
#result-scores li {
  display: flex;
  justify-content: space-between;
  padding: 4px 0;
  border-bottom: 1px dashed var(--border);
}
#result-scores li.primary { color: var(--dark); font-weight: 700; }

.btn-retake {
  display: block;
  margin: 0 auto;
  max-width: 220px;
}

.footer {
  text-align: center;
  padding: 20px 10px 8px;
  font-size: 12px;
  color: var(--muted);
}

/* ===== Mobile ===== */
@media (max-width: 520px) {
  .wrap { padding: 20px 16px 30px; }
  .h1 { font-size: 24px; }
  .sub { font-size: 15px; }
  .question-text { font-size: 19px; min-height: 120px; }
  .result-gift { font-size: 30px; }
  .result-panels { grid-template-columns: 1fr; }
  #result-scores { grid-template-columns: 1fr; }
  .lang-switch { top: 10px; right: 10px; }
  .nav-row { gap: 8px; }
  .nav-row .btn { padding: 12px 16px; font-size: 15px; }
  .btn { padding: 12px 20px; font-size: 15px; }
  .brand { font-size: 18px; margin-bottom: 22px; }
}