/* ========================================
   Variables CSS et configuration globale
   ======================================== */
:root {
  /* Couleurs principales */
  --color-bg: #0b0710;
  --color-card: #0f0b16;
  --color-text: #eeeeee;
  --color-text-muted: #9a8fbf;
  --color-accent: #7c4dff;
  --color-accent-dark: #5b3ad6;
  --color-input-hover: rgba(124 77 255 / 0.1);
  
  /* Effets visuels */
  --color-glass: rgba(255, 255, 255, 0.03);
  --color-glass-light: rgba(255, 255, 255, 0.02);
  --color-glass-lighter: rgba(255, 255, 255, 0.01);
  --color-border: rgba(124, 77, 255, 0.06);
  --color-border-light: rgba(255, 255, 255, 0.03);
  --color-border-lighter: rgba(255, 255, 255, 0.05);
  
  /* Espacements */
  --spacing-xs: 6px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 18px;
  --spacing-xl: 20px;
  --spacing-xxl: 28px;
  
  /* Rayons de bordure */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-xl: 14px;
  --radius-xxl: 20px;
  
  /* Ombres */
  --shadow-sm: 0 6px 18px rgba(124, 77, 255, 0.12);
  --shadow-md: 0 10px 40px rgba(7, 6, 10, 0.6);
  --shadow-focus: 0 0 0 2px rgba(124, 77, 255, 0.4);
  --shadow-slider: 0 0 8px rgba(124, 77, 255, 0.6);
  
  /* Typographie */
  --font-family: Inter, ui-sans-serif, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-lg: 18px;
  
  /* Contrôles de formulaire */
  --control-height: 44px;
  --control-padding-y: 10px;
  --control-padding-x: 12px;
  --spacing-base: 12px; /* corrige l'utilisation précédente de var(--spacing-base) */
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
}

/* ========================================
   Reset et styles de base
   ======================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: 
    radial-gradient(1200px 600px at 10% 10%, rgba(124, 77, 255, 0.12), transparent),
    radial-gradient(900px 500px at 90% 90%, rgba(88, 75, 160, 0.08), transparent),
    var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xxl);
}

/* fait en sorte que les valeur des input ou des textare ne soit pas selectionnable */
button, input, textarea {
    user-select: none;
}

.link {
    color: #9B7FFF;
    text-decoration-thickness: 2px;
    text-underline-offset: 3px;
}

.link:hover {
    color: #AC9AEE;
}

/* ========================================
   Layout principal
   ======================================== */
.app {
  width: 100%;
  max-width: 1000px;
  /* background: linear-gradient(180deg, var(--color-card), rgba(15, 11, 22, 0.6)); */
  border-radius: var(--radius-xxl);
  padding: var(--spacing-xxl);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  align-items: start;
}

.app-wrapper {
    display: flex;
    width: 100%;
    flex: 1;
    gap: var(--spacing-xl);
}

.header-title {
    display: flex;
    flex-direction: column;
    width: fit-content;
    user-select: none;
}

.luminos-text {
    line-height: 10px;
    padding: 0;
    margin: 0;
    width: 100%;
    text-align: start;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-muted);
    opacity: 0.5;
}

/* ========================================
   En-tête
   ======================================== */
header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  width: 100%;
}

.header-logo {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: white;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
  user-select: none;
}

h1 {
  font-size: var(--font-size-lg);
  margin: 0;
  font-weight: 600;
  line-height: 1.2;
}

.lead {
  margin: 0;
  color: rgba(255 255 255 / 0.6);
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

/* ========================================
   Formulaire et contrôles
   ======================================== */
.controls {
  padding: var(--spacing-lg);
  background: linear-gradient(180deg, var(--color-glass-light), var(--color-glass-lighter));
  border-radius: var(--radius-lg);
}

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

.form-group:last-child {
  margin-bottom: 0;
}

.form-row {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.form-group--small {
  width: 120px;
  flex-shrink: 0;
}

/* Les groupes qui doivent prendre toute la largeur disponible */
.form-group--grow {
  flex: 1 1 auto;
  min-width: 0; /* évite débordement avec éléments flex */
}

/* Labels */
label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

.value-display {
  font-weight: 600;
}

/* Champs de saisie */
input[type="text"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: var(--control-padding-y) var(--control-padding-x);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  background: var(--color-glass);
  color: var(--color-text);
  font-size: var(--font-size-base);
  font-family: inherit;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  line-height: 1.3;
  box-sizing: border-box;
}

input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
  /* border-color: var(--color-accent); */
  box-shadow: var(--shadow-focus);
}

textarea {
  height: 40px;
  resize: none;
  line-height: 1.5;
  height: auto; /* textarea doit rester auto */
}

textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.5;
}

/* Hauteur uniforme pour select et number (y compris Correction d'erreur, Format, Marge) */
select,
input[type="number"] {
  height: var(--control-height);
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  /* Pour éviter les déformations sur certains navigateurs */
  line-height: 1.2;
}

/* Ajuste le curseur dans certains navigateurs sur number */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  height: auto;
}

/* Sliders personnalisés */
input[type="range"] {
    appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 5px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-dark));
  outline: none;
  margin: var(--spacing-sm) 0;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--color-accent);
  box-shadow: var(--shadow-slider);
  cursor: pointer;
  transition: var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  background: var(--color-accent);
  border-color: white;
  transform: scale(1.1);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: white;
  border: 2px solid var(--color-accent);
  box-shadow: var(--shadow-slider);
  cursor: pointer;
  transition: var(--transition-fast);
}

input[type="range"]::-moz-range-thumb:hover {
  background: var(--color-accent);
  border-color: white;
  transform: scale(1.1);
}

/* ========================================
   Boutons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px var(--spacing-base);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  outline: none;
  transition: 
    background var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast),
    opacity var(--transition-fast);
  border: 1px solid transparent;
  text-decoration: none;
  min-height: 40px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

.btn:not(:disabled):hover {
  transform: translateY(-1px);
}

.btn:not(:disabled):active {
  transform: translateY(0);
}

.btn--primary {
  background: linear-gradient(180deg, var(--color-accent), var(--color-accent-dark));
  color: white;
  border: none !important;
  flex: 1;
}

.btn--primary:not(:disabled):hover {
  box-shadow: var(--shadow-sm), 0 4px 12px rgba(124, 77, 255, 0.3);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border-lighter);
  flex: 1;
}

.btn--secondary:not(:disabled):hover {
  background: var(--color-input-hover);
  border-color: var(--color-accent);
}

.btn--full {
  width: 100%;
}

.btn__text {
  white-space: nowrap;
}

/* ========================================
   Actions et mise en page des boutons
   ======================================== */
.actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
  flex-wrap: wrap;
}

.help-text {
    display: block;
  margin-top: var(--spacing-sm);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: 1.4;
}

/* ========================================
   Aperçu
   ======================================== */
.preview {
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, var(--color-glass-lighter), var(--color-glass-light));
  display: flex;
  flex-direction: column;
  gap: var(--spacing-base);
  min-width: 300px;
}

.qr-container {
  width: 100%;
  aspect-ratio: 1 / 1;
  position: relative;
  margin: 0 auto;
  user-select: none;
}

.qr-image {
  max-width: 300px;
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-sm);
  background: white;
  transition: opacity var(--transition-normal), filter var(--transition-normal);
}

.qr-image:not([src]),
.qr-image[src=""] {
  opacity: 0;
}

/* Wrapper pour l'affichage inline SVG */
.qr-svg-wrap {
  position: absolute;
  inset: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xs);
  background: white;
  border-radius: var(--radius-sm);
  overflow: hidden;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.qr-svg-wrap svg {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.qr-container[data-mode="svg"] .qr-svg-wrap { opacity: 1; }
.qr-container[data-mode="svg"] .qr-image { opacity: 0; }
.qr-container[data-mode="png"] .qr-svg-wrap { opacity: 0; }
/* État de génération en cours (avant résultat) */
.qr-container[data-mode="svg-loading"] .qr-image,
.qr-container[data-mode="png-loading"] .qr-image {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.qr-image.is-fading { opacity: 0.25; filter: grayscale(40%); }

/* État de chargement */
.loading-state {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.loading-state[aria-hidden="true"] {
  display: none;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-glass);
  border-top: 3px solid var(--color-accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Métadonnées de l'aperçu */
.preview-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.meta-item {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  max-width: 100%;
}

.meta-label {
  font-weight: 500;
  max-width: 150px;
  width: 100%;
  display: block;
  /* rajoute un ellipsis si le texte est trop long  a*/
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.meta-label-title {
  font-weight: 600;
  color: var(--color-text);
  max-width: 150px;
  width: 100%;
  display: block;
  /* rajoute un ellipsis si le texte est trop long  a*/
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Actions de l'aperçu */
.preview-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* ========================================
   Custom Select Component
   ======================================== */
.c-select {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  font-size: var(--font-size-base);
  user-select: none;
}

.c-select:focus-visible .c-select__button {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.c-select__button {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  height: var(--control-height);
  padding: var(--control-padding-y) var(--control-padding-x);
  background: var(--color-glass);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.c-select__button:hover {
  border-color: var(--color-accent);
  background: rgba(255,255,255,0.05);
}

.c-select[aria-expanded="true"] .c-select__button {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-focus);
}

.c-select__value {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.c-select__icon {
  font-size: 12px;
  margin-left: 8px;
  opacity: .8;
  transition: transform var(--transition-fast);
}

.c-select[aria-expanded="true"] .c-select__icon {
  transform: rotate(180deg);
}

.c-select__list {
  list-style: none;
  margin: 4px 0 0 0;
  padding: 4px;
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  right: 0;
  background: var(--color-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  z-index: 20;
  max-height: 240px;
  overflow-y: auto;
  display: none;
}

.c-select[aria-expanded="true"] .c-select__list {
  display: block;
  animation: fadeIn .15s ease;
}

.c-select__list li {
  padding: 8px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.c-select__list li[aria-selected="true"],
.c-select__list li:hover {
  background: linear-gradient(90deg, rgba(124,77,255,0.18), rgba(91,58,214,0.18));
  color: #fff;
}

.c-select__list li:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Scrollbar styling (facultatif) */
.c-select__list::-webkit-scrollbar {
  width: 8px;
}
.c-select__list::-webkit-scrollbar-track {
  background: transparent;
}
.c-select__list::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
}
.c-select__list::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.2);
}

/* ========================================
   Pied de page
   ======================================== */
footer {
  grid-column: 1 / -1;
  margin-top: var(--spacing-xs);
  text-align: right;
}

footer p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* ========================================
   Accessibilité
   ======================================== */
.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;
}

/* Utilitaire pour masquer totalement un bloc (JS) */
.is-hidden {
  display: none !important;
}

/* Focus visible pour l'accessibilité */
.btn:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Ajout icône info (ECC) */
.info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 16px;
  font-size: 11px;
  line-height: 1;
  border-radius: 50%;
  background: rgba(255,255,255,0.15);
  color: #fff;
  border: none;
  font-weight: 600;
  margin-left: 6px;
  cursor: help;
  position: relative;
  top: -1px;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.info-icon:hover, .info-icon:focus-visible {
  background: var(--color-accent);
  outline: none;
}
.info-icon:focus-visible { box-shadow: var(--shadow-focus); }