/**
 * Kwit Onboarding — Component Styles
 *
 * Reusable UI components shared across screen types.
 * Naming convention: BEM-like (.component__element--modifier)
 *
 * Components:
 *   .screen           — base screen layout (flex column, padding, scroll)
 *   .screen__footer    — sticky bottom area for CTA buttons
 *   .back-btn          — "< Retour" navigation button
 *   .btn-primary       — green rounded CTA button
 *   .btn-secondary     — white outlined button (transition screens)
 *   .character-bubble   — avatar + speech bubble (form screen headers)
 *   .option-card       — single-select option (icon + label)
 *   .chip / .chip-grid — multi-select toggle chips
 *   .form-body         — content area between bubble and footer
 *   .text-input / .number-input / .date-input — form inputs
 *   .currency-input-row — amount + currency dropdown
 *   .feature-card      — icon + text card (concerns, presentation)
 */

/* ============================================
   SCREEN LAYOUT
   ============================================ */
.screen {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
  padding: var(--space-lg);
  padding-bottom: calc(var(--space-xl) + var(--safe-bottom));
  /* Per-screen entry animation is handled by Transitions.slide() (stagger). */
}

.screen__header {
  display: flex;
  align-items: flex-start;
  margin-bottom: var(--space-lg);
}

.screen__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 0;
}

.screen__footer {
  margin-top: auto;
  padding-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}

/* ============================================
   BACK BUTTON
   ============================================ */
.back-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  padding: var(--space-xs) 0;
  margin-bottom: var(--space-sm);
  transition: opacity var(--transition-fast);
}

.back-btn:active {
  opacity: 0.5;
}

.back-btn::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-left: 2px solid var(--color-text-secondary);
  border-bottom: 2px solid var(--color-text-secondary);
  transform: rotate(45deg);
}

/* ============================================
   CHARACTER BUBBLE
   ============================================ */
.character-bubble {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.character-bubble__avatar {
  flex-shrink: 0;
  width: 72px;
  height: 72px;
}

.character-bubble__avatar--lottie {
  width: 80px;
  height: 80px;
}

.character-bubble__avatar img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.character-bubble__text {
  background: #EAECEF;
  border-radius: var(--radius-lg);
  border-top-left-radius: var(--radius-sm);
  padding: var(--space-md);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
  position: relative;
  flex: 1;
}

/* Speech bubble arrow pointing left toward avatar */
.character-bubble__text::before {
  content: '';
  position: absolute;
  top: 14px;
  left: -8px;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-right: 8px solid #EAECEF;
}

.character-bubble__image {
  display: flex;
  justify-content: center;
  margin-top: var(--space-md);
}

.character-bubble__image img {
  max-width: 80px;
  max-height: 80px;
  object-fit: contain;
}

/* ============================================
   CTA BUTTON (Primary)
   ============================================ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 200px;
  padding: var(--space-sm) var(--space-xl);
  background: var(--color-primary);
  color: white;
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  transition: background var(--transition-fast), transform var(--transition-fast);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn-primary {
  box-shadow: 0 8px 24px -8px rgba(0, 214, 139, 0.55);
}

.btn-primary:active {
  transform: scale(0.97);
  background: var(--color-primary-dark);
  box-shadow: 0 4px 12px -4px rgba(0, 214, 139, 0.5);
}

.btn-primary:disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* Secondary button */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-xl);
  background: var(--color-bg-white);
  color: var(--color-text);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-bold);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-border);
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.btn-secondary:active {
  background: var(--color-bg);
  transform: scale(0.97);
}

/* Link button */
.btn-link {
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-xs);
}

/* ============================================
   OPTION CARD (single-select list item)
   ============================================ */
.option-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Mirrors iOS FormDefaultListCell: 2px #F0F0F0 border, radius 8,
   16px padding, no shadow, no background change on selection */
.option-card {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md);
  background: var(--color-card);
  border: 2px solid var(--color-cell-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  /* Stagger entry animation */
  opacity: 0;
  transform: translateY(8px);
  animation: staggerFadeIn 350ms var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 50ms);
}

.option-card:active {
  transform: scale(0.985);
}

.option-card--selected {
  border-color: var(--color-primary);
  /* cardPop replaces the staggerFadeIn entry animation, so restate the
     entry's final state here — otherwise the card snaps back to its
     pre-stagger opacity:0 base and vanishes */
  opacity: 1;
  transform: none;
  animation: cardPop 280ms cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes cardPop {
  0%   { transform: scale(0.98); }
  60%  { transform: scale(1.015); }
  100% { transform: scale(1); }
}

@keyframes staggerFadeIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.option-card--selected .option-card__label {
  color: var(--color-primary);
  font-weight: var(--font-weight-bold);
}

/* Template-rendered icon (iOS-style): the SVG is a CSS mask so its color
   is driven here — light gray at rest, accent green when selected */
.option-card__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  background-color: var(--color-cell-icon);
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-position: center;
  -webkit-mask-size: contain;
  mask-repeat: no-repeat;
  mask-position: center;
  mask-size: contain;
  transition: background-color var(--transition-fast);
}

.option-card--selected .option-card__icon {
  background-color: var(--color-primary);
}

.option-card__label {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-medium);
  color: var(--color-cell-text);
}

/* ============================================
   CHIP SELECT (multi-select tags)
   ============================================ */
.chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: var(--space-xs) var(--space-md);
  border: 2px solid var(--color-cell-border);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-cell-text);
  cursor: pointer;
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.chip:active {
  transform: scale(0.96);
}

.chip--selected {
  border-color: var(--color-border-active);
  background: var(--color-primary-bg);
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  animation: cardPop 260ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* ============================================
   FORM BODY (shared layout for all form screens)
   ============================================ */
.form-body {
  margin-top: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ============================================
   TEXT INPUT
   ============================================ */
.text-input-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.text-input {
  width: 100%;
  text-align: center;
  padding: var(--space-md) var(--space-lg);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  background: #EAECEF;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.text-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 214, 139, 0.15);
  outline: none;
}

.text-input::placeholder {
  color: var(--color-text-muted);
  font-weight: var(--font-weight-regular);
}

.text-input--error {
  border-color: var(--color-error);
}

.input-error {
  color: var(--color-error);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

/* Number input — same style */
.number-input {
  width: 100%;
  text-align: center;
  padding: var(--space-md);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  background: #EAECEF;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
  -moz-appearance: textfield;
}

.number-input::-webkit-inner-spin-button,
.number-input::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

.number-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 214, 139, 0.15);
  outline: none;
}

/* Currency input row */
.currency-input-row {
  display: flex;
  gap: var(--space-sm);
  /* Stretch so the currency select matches the amount field height */
  align-items: stretch;
  width: 100%;
}

.currency-input-row .number-input {
  flex: 1;
}

.currency-select {
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%23636E72' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* ============================================
   DATE INPUT
   ============================================ */
.date-input {
  width: 100%;
  text-align: center;
  padding: var(--space-md);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  background: #EAECEF;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  font-family: var(--font-family);
  transition: border-color var(--transition-fast);
}

.date-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 214, 139, 0.15);
  outline: none;
}

/* ============================================
   BENEFIT CARD
   ============================================ */
.benefit-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(8px);
  animation: staggerFadeIn 350ms var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 50ms);
}

.benefit-card__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.benefit-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.benefit-card__content {
  flex: 1;
}

.benefit-card__value {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
}

.benefit-card__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================
   FEATURE CARD (concerns transition)
   ============================================ */
.feature-card-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.feature-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  opacity: 0;
  transform: translateY(8px);
  animation: staggerFadeIn 350ms var(--ease-out) forwards;
  animation-delay: calc(var(--i, 0) * 50ms);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.feature-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.feature-card__text {
  flex: 1;
}

.feature-card__primary {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2xs);
}

.feature-card__secondary {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   PRESENTATION ITEM (phase transition items)
   ============================================ */
.presentation-items {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-top: var(--space-md);
}

.presentation-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.presentation-item__icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.presentation-item__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.presentation-item__text {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   REVIEW CARD
   ============================================ */
.review-card {
  padding: var(--space-md);
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.review-card__stars {
  color: var(--color-yellow);
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-xs);
}

.review-card__author {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.review-card__text {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* ============================================
   HOLD TO SIGN
   ============================================ */
.hold-to-sign {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.hold-to-sign__title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.hold-to-sign__body {
  font-size: var(--font-size-md);
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
}

.hold-to-sign__button {
  width: 140px;
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

.hold-to-sign__button > * {
  pointer-events: none;
}

.hold-to-sign__ring {
  position: absolute;
  top: 50%;
  left: 50%;
  border-radius: 50%;
  background: var(--color-primary);
  transform-origin: center center;
  will-change: transform;
}

/* Release: fast snap-back (default state) */
.hold-to-sign__ring--outer {
  width: 140px;
  height: 140px;
  margin: -70px 0 0 -70px;
  opacity: 0.2;
  transition: transform 200ms var(--ease-out);
}

.hold-to-sign__ring--mid {
  width: 120px;
  height: 120px;
  margin: -60px 0 0 -60px;
  opacity: 0.35;
  transition: transform 200ms var(--ease-out);
}

.hold-to-sign__ring--inner {
  width: 100px;
  height: 100px;
  margin: -50px 0 0 -50px;
  opacity: 1;
  transition: transform 200ms var(--ease-out);
}

/* Press: slow spring expansion with staggered delays */
.hold-to-sign__ring--pressing.hold-to-sign__ring--outer {
  transition: transform 800ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.hold-to-sign__ring--pressing.hold-to-sign__ring--mid {
  transition: transform 800ms cubic-bezier(0.34, 1.4, 0.64, 1) 30ms;
}

.hold-to-sign__ring--pressing.hold-to-sign__ring--inner {
  transition: transform 800ms cubic-bezier(0.34, 1.3, 0.64, 1) 60ms;
}

.hold-to-sign__fingerprint {
  position: relative;
  z-index: 2;
  width: 42px;
  height: 45px;
  transition: opacity 200ms ease-out;
}

.hold-to-sign__success {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  text-align: center;
  padding: var(--space-xl);
  opacity: 0;
  transition: opacity 300ms ease-out;
  z-index: 10;
  pointer-events: none;
}

.hold-to-sign__success--visible {
  opacity: 1;
}

.hold-to-sign__hint {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ============================================
   LOADING SCREEN
   ============================================ */
.loading-screen {
  position: relative;
  padding: 0;
  overflow: hidden;
  background: #EAF8FB;
}

.loading-screen__lottie {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.loading-screen__lottie svg {
  width: 100% !important;
  height: 100% !important;
}

.loading-screen__bubble-wrap {
  position: absolute;
  left: 50%;
  top: 18%;
  transform: translateX(-50%);
  width: calc(100% - 64px);
  max-width: 320px;
  z-index: 1;
}

.loading-screen__name {
  display: inline-block;
  background: var(--color-primary);
  color: white;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xs);
  padding: 6px 14px;
  border-radius: 999px;
  margin-left: 8px;
  margin-bottom: -10px;
  position: relative;
  z-index: 2;
}

.loading-screen__bubble {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-md) var(--space-lg);
  box-shadow: var(--shadow-md);
  min-height: 1.4em;
}

.loading-screen__spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.65s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-screen__text {
  font-size: var(--font-size-sm);
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
  text-align: left;
}

/* ============================================
   EFFICACY CHART
   ============================================ */
.efficacy-chart {
  width: 100%;
  padding: var(--space-md) 0;
}

.efficacy-chart__title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.efficacy-chart__svg-wrap {
  margin: 0 calc(var(--space-lg) * -1);
  width: calc(100% + var(--space-lg) * 2);
  padding: var(--space-sm) var(--space-md);
}

.efficacy-chart__svg {
  width: 100%;
  height: auto;
  display: block;
  overflow: visible;
}

.efficacy-chart__footnote {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* ============================================
   EXPERTS GRID
   ============================================ */
.experts-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.expert-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.expert-card__avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}

.expert-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.expert-card__name {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
}

.expert-card__role {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
}