/* ===========================================
   Supiria Quiz - Design System
   QUIZ-2: Design tokens, typography, layout
   =========================================== */

/* --- Fonts (self-hosted woff2) --- */

@font-face {
  font-family: 'Gambarino';
  src: url('/assets/fonts/gambarino.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Switzer Variable';
  src: url('/assets/fonts/switzer-variable.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* --- Design Tokens --- */

:root {
  /* Greys (from Webflow Global Swatches) */
  --color-dark-100: #000000;
  --color-dark-90: #1A1A2E;
  --color-dark-80: #2D2D3A;
  --color-dark-70: #C8C8D0;
  --color-dark-60: #EDEDF0;
  --color-dark-50: #F5F5F7;
  --color-white: #FFFFFF;

  /* Brand Colours */
  --color-light-blue: #C4C8EE;
  --color-sage-green: #2D5A4E;

  /* Semantic Aliases */
  --color-primary: var(--color-light-blue);
  --color-primary-hover: #B0B4E0;
  --color-bg: var(--color-white);
  --color-card-bg: var(--color-dark-60);
  --color-input-bg: var(--color-dark-50);
  --color-text: var(--color-dark-100);
  --color-text-secondary: var(--color-dark-80);
  --color-border: var(--color-dark-70);
  --color-success: #2D5A4E;
  --color-warning: #D4A843;
  --color-error: #C1392B;

  /* Typography */
  --font-heading: 'Gambarino', Georgia, serif;
  --font-body: 'Switzer Variable', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Type Scale (em-based, from Webflow) */
  --text-h1: 3.56em;
  --text-h2: 2.83em;
  --text-h3: 2.22em;
  --text-h4: 1.78em;
  --text-h5: 1.44em;
  --text-h6: 1.22em;
  --text-body-display-l: 1.44em;
  --text-body-display-m: 1.33em;
  --text-body-display-s: 1.22em;
  --text-body-l: 1.11em;
  --text-body-m: 1em;
  --text-body-s: 0.89em;
  --text-uppercase-sm: 0.78em;
  --text-fine-print: 0.78em;

  /* Quiz-specific type mapping */
  --text-question: var(--text-h4);
  --text-card-label: var(--text-body-l);
  --text-helper: var(--text-body-s);
  --text-quote: var(--text-h4);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Misc */
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-pill: 999px;
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 2px 8px rgba(0, 0, 0, 0.12);
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

/* --- Reset --- */

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.5;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* --- Layout Shell --- */

.quiz-wrapper {
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-md);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

.quiz-header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md) 0;
  position: relative;
}

.logo {
  height: 35px;
  width: auto;
}

/* --- Back Button --- */

.back-btn {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: var(--spacing-sm);
  color: var(--color-text-secondary);
  font-size: 1.25em;
  line-height: 1;
  transition: color var(--transition-base);
  display: none; /* Hidden on first screen, shown by JS */
}

.back-btn:hover {
  color: var(--color-text);
}

.back-btn.visible {
  display: block;
}

/* --- Progress Bar --- */

.progress-bar-container {
  width: 100%;
  height: 4px;
  background: var(--color-dark-60);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
}

.progress-bar {
  height: 100%;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width var(--transition-slow);
  width: 0%;
}

.progress-text {
  font-size: var(--text-fine-print);
  color: var(--color-text-secondary);
  text-align: right;
  margin-bottom: var(--spacing-md);
}

/* --- Quiz Container --- */

.quiz-container {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* --- Screen (each quiz step) --- */

.quiz-screen {
  display: flex;
  flex-direction: column;
  flex: 1;
  animation: fadeIn var(--transition-slow) ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-8px);
  }
}

/* --- Typography --- */

.question-text {
  font-family: var(--font-heading);
  font-size: var(--text-question);
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.helper-text {
  font-size: var(--text-helper);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: var(--spacing-lg);
}

.section-label {
  font-size: var(--text-uppercase-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

/* --- Cards (single-select options) --- */

.card-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.card-option {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background: var(--color-card-bg);
  border: 2px solid transparent;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  min-height: 56px;
  -webkit-tap-highlight-color: transparent;
}

.card-option:hover {
  border-color: var(--color-border);
  box-shadow: var(--shadow-card);
}

.card-option:active {
  transform: scale(0.98);
}

.card-option.selected {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card-hover);
}

.card-option-icon {
  font-size: 1.5em;
  flex-shrink: 0;
  width: 40px;
  text-align: center;
}

.card-option-label {
  font-size: var(--text-card-label);
  font-weight: 400;
  color: var(--color-text);
}

.card-option-sublabel {
  font-size: var(--text-helper);
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* --- Checkbox Cards (multi-select) --- */

.checkbox-card {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background: var(--color-card-bg);
  border: 2px solid transparent;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  min-height: 56px;
  -webkit-tap-highlight-color: transparent;
}

.checkbox-card:hover {
  border-color: var(--color-border);
}

.checkbox-card.selected {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card-hover);
}

.checkbox-indicator {
  width: 22px;
  height: 22px;
  border: 2px solid var(--color-border);
  border-radius: 4px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.checkbox-card.selected .checkbox-indicator {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox-indicator svg {
  width: 14px;
  height: 14px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.checkbox-card.selected .checkbox-indicator svg {
  opacity: 1;
}

/* --- Buttons --- */

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1em;
  padding: 11px 22px;
  border-radius: var(--border-radius-pill);
  border: none;
  min-height: 49px;
  width: 100%;
  cursor: pointer;
  margin-top: var(--spacing-lg);
  transition: background var(--transition-base), opacity var(--transition-base);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary:disabled:active {
  transform: none;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-pill);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1em;
  padding: 11px 22px;
  min-height: 49px;
  width: 100%;
  cursor: pointer;
  transition: border-color var(--transition-base);
}

.btn-secondary:hover {
  border-color: var(--color-text-secondary);
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-size: var(--text-body-s);
  padding: var(--spacing-sm) 0;
  cursor: pointer;
  text-decoration: underline;
  transition: color var(--transition-base);
}

.btn-link:hover {
  color: var(--color-text);
}

/* --- Inputs --- */

input,
textarea,
select {
  background: var(--color-input-bg);
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-body);
  font-size: 1em; /* 16px - prevents iOS zoom */
  padding: 12px 16px;
  width: 100%;
  color: var(--color-text);
  transition: box-shadow var(--transition-base);
  -webkit-appearance: none;
  appearance: none;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.6;
}

/* Input stack (vertical, e.g. name + email) */
.input-stack {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* Input row (side-by-side, e.g. DD/MM/YYYY, weight + height) */
.input-row {
  display: flex;
  gap: var(--spacing-md);
}

.input-row > * {
  flex: 1;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.input-label {
  font-size: var(--text-body-s);
  font-weight: 500;
  color: var(--color-text-secondary);
}

.input-suffix {
  font-size: var(--text-body-s);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

/* Validation states */
.input-error {
  box-shadow: 0 0 0 2px var(--color-error);
}

.error-message {
  font-size: var(--text-fine-print);
  color: var(--color-error);
  margin-top: var(--spacing-xs);
}

/* --- Trust Signals --- */

.trust-stack {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--text-helper);
  color: var(--color-text-secondary);
}

.trust-item-icon {
  flex-shrink: 0;
  font-size: 1em;
}

/* --- Measurement Groups (weight/height) --- */

.measurement-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.measurement-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.measurement-label {
  font-size: var(--text-body-l);
  font-weight: 500;
  color: var(--color-text);
}

.unit-toggle {
  display: flex;
  background: var(--color-input-bg);
  border-radius: var(--border-radius-pill);
  padding: 2px;
  gap: 2px;
}

.unit-btn {
  background: transparent;
  border: none;
  border-radius: var(--border-radius-pill);
  padding: 6px 14px;
  font-family: var(--font-body);
  font-size: var(--text-body-s);
  font-weight: 400;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  min-height: 32px;
}

.unit-btn.active {
  background: var(--color-primary);
  color: var(--color-text);
  font-weight: 500;
}

.unit-btn:hover:not(.active) {
  color: var(--color-text);
}

/* --- BMI Display --- */

.bmi-display {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--spacing-lg) 0;
  gap: var(--spacing-md);
}

.bmi-number {
  font-family: var(--font-heading);
  font-size: 3.5em;
  font-weight: 400;
  line-height: 1;
  color: var(--color-text);
}

.bmi-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-pill);
  font-size: var(--text-body-s);
  font-weight: 500;
}

.bmi-badge.eligible {
  background: rgba(45, 90, 78, 0.12);
  color: var(--color-success);
}

.bmi-badge.borderline {
  background: rgba(212, 168, 67, 0.12);
  color: var(--color-warning);
}

/* --- Conditional Reveal (yes-no screens) --- */

.conditional-reveal {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--transition-base), opacity var(--transition-base), margin-top var(--transition-base);
  margin-top: 0;
}

.conditional-reveal.visible {
  max-height: 200px;
  opacity: 1;
  margin-top: var(--spacing-md);
}

/* --- Textarea --- */

.textarea-field {
  min-height: 80px;
  resize: vertical;
  line-height: 1.5;
}

/* --- Checkbox None Separator --- */

.checkbox-none-separator {
  height: 1px;
  background: var(--color-border);
  margin: var(--spacing-xs) 0;
}

.checkbox-none .card-option-label {
  font-weight: 500;
}

/* --- Soft Block (contraindications) --- */

.soft-block {
  background: rgba(212, 168, 67, 0.1);
  border: 1px solid var(--color-warning);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-lg);
  text-align: center;
  margin-top: var(--spacing-lg);
}

.soft-block-icon {
  font-size: 2em;
  margin-bottom: var(--spacing-sm);
}

.soft-block-title {
  font-family: var(--font-heading);
  font-size: var(--text-h5);
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
}

.soft-block-message {
  font-size: var(--text-body-s);
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--spacing-md);
}

.soft-block-cta {
  display: inline-flex;
  text-decoration: none;
  width: auto;
  padding: 11px 32px;
}

/* --- Eligibility Result --- */

.result-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-pill);
  font-size: var(--text-body-s);
  font-weight: 500;
}

.result-badge.eligible {
  background: rgba(45, 90, 78, 0.1);
  color: var(--color-success);
}

.result-badge.not-eligible {
  background: rgba(193, 57, 43, 0.1);
  color: var(--color-error);
}

/* --- Review Screen --- */

.review-section {
  background: var(--color-card-bg);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.review-section-title {
  font-size: var(--text-body-s);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
}

.review-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: var(--spacing-xs) 0;
}

.review-label {
  font-size: var(--text-body-s);
  color: var(--color-text-secondary);
}

.review-value {
  font-size: var(--text-body-m);
  font-weight: 500;
  color: var(--color-text);
}

/* --- Medication Cards --- */

.medication-card {
  background: var(--color-card-bg);
  border: 2px solid transparent;
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-md);
  cursor: pointer;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  -webkit-tap-highlight-color: transparent;
}

.medication-card:hover {
  border-color: var(--color-border);
}

.medication-card.selected {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card-hover);
}

.medication-name {
  font-family: var(--font-heading);
  font-size: var(--text-h5);
  margin-bottom: var(--spacing-xs);
}

.medication-dose {
  font-size: var(--text-body-s);
  color: var(--color-text-secondary);
}

.medication-price {
  font-size: var(--text-body-display-m);
  font-weight: 600;
  margin-top: var(--spacing-sm);
}

.medication-price-period {
  font-size: var(--text-body-s);
  font-weight: 400;
  color: var(--color-text-secondary);
}

/* --- Consent Screen --- */

.consent-text {
  font-size: var(--text-body-s);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.consent-text a {
  color: var(--color-text);
  text-decoration: underline;
}

/* --- Footer --- */

.quiz-footer {
  text-align: center;
  padding: var(--spacing-lg) 0 var(--spacing-md);
  margin-top: auto;
}

.quiz-footer p {
  font-size: var(--text-fine-print);
  color: var(--color-text-secondary);
}

/* --- Utility Classes --- */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center {
  text-align: center;
}

.mt-auto {
  margin-top: auto;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-sm {
  margin-bottom: var(--spacing-sm);
}

.mb-md {
  margin-bottom: var(--spacing-md);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

.gap-md {
  gap: var(--spacing-md);
}

/* --- Responsive --- */

@media (min-width: 768px) {
  .quiz-wrapper {
    padding: var(--spacing-lg);
  }

  .question-text {
    font-size: 1.56em; /* Slightly smaller than desktop, larger than mobile */
  }
}

@media (min-width: 1280px) {
  .quiz-wrapper {
    padding: var(--spacing-xl);
  }

  .question-text {
    font-size: var(--text-question); /* Full 1.78em on desktop */
  }
}

/* --- Reduced Motion --- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}