/* ==========================================================================
   DIRECTION GRAPHIQUE — APERÇU
   Hero + carrousel de composants UI
   ========================================================================== */

/* ==========================================================================
   THÈMES
   ========================================================================== */

:root {
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  
  --container-max: 1200px;
  --switcher-height: 44px;
  
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

/* ==========================================================================
   DIRECTION "LIEN" (défaut)
   Concept : Relation humaine, connexion, authenticité, chaleur
   ========================================================================== */
body,
body[data-theme="lien"] {
  --color-primary: #C08B6F;
  --color-primary-dark: #A67458;
  --color-secondary: #6B9080;
  --color-secondary-dark: #4A7A68;
  --color-background: #FAF8F5;
  --color-surface: #FFFFFF;
  --color-text: #2D2D2D;
  --color-text-light: #5A5A5A;
  --color-border: #E8E4E0;
  
  --font-heading: 'Rubik', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 600;
  
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(192, 139, 111, 0.08);
  --shadow-md: 0 4px 20px rgba(192, 139, 111, 0.12);
  --shadow-lg: 0 8px 40px rgba(192, 139, 111, 0.16);
}

/* ==========================================================================
   DIRECTION "SOLAIRE"
   Concept : Énergie positive, lumière, révélation des potentiels
   ========================================================================== */
body[data-theme="solaire"] {
  --color-primary: #C4836E;
  --color-primary-dark: #A8624D;
  --color-secondary: #E2B866;
  --color-secondary-dark: #D4A84D;
  --color-background: #FFFBF7;
  --color-surface: #FFFFFF;
  --color-text: #4A3728;
  --color-text-light: #6B5344;
  --color-border: #EDE6DE;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Lato', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 600;
  --font-weight-bold: 700;
  
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(196, 131, 110, 0.08);
  --shadow-md: 0 4px 20px rgba(196, 131, 110, 0.12);
  --shadow-lg: 0 8px 40px rgba(196, 131, 110, 0.16);
}

/* ==========================================================================
   DIRECTION "ANCRAGE"
   Concept : Authenticité, terre, stabilité rassurante
   ========================================================================== */
body[data-theme="ancrage"] {
  --color-primary: #B5705A;
  --color-primary-dark: #9A5D4A;
  --color-secondary: #C9A227;
  --color-secondary-dark: #B08E1F;
  --color-background: #F9F6F2;
  --color-surface: #FFFFFF;
  --color-text: #3D2E24;
  --color-text-light: #5C4A3D;
  --color-border: #E5DED4;
  
  --font-heading: 'Fraunces', serif;
  --font-body: 'Source Sans 3', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 600;
  
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(181, 112, 90, 0.08);
  --shadow-md: 0 4px 20px rgba(181, 112, 90, 0.12);
  --shadow-lg: 0 8px 40px rgba(181, 112, 90, 0.16);
}

/* ==========================================================================
   DIRECTION "SÉRÉNITÉ" (ancien Lien)
   Concept : Calme, équilibre, harmonie naturelle
   ========================================================================== */
body[data-theme="serenite"] {
  --color-primary: #6B9080;
  --color-primary-dark: #4A7A68;
  --color-secondary: #C08B6F;
  --color-secondary-dark: #A87259;
  --color-background: #FAF8F5;
  --color-surface: #FFFFFF;
  --color-text: #2D2D2D;
  --color-text-light: #5A5A5A;
  --color-border: #E8E4E0;
  
  --font-heading: 'Rubik', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 600;
  
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 8px rgba(107, 144, 128, 0.08);
  --shadow-md: 0 4px 20px rgba(107, 144, 128, 0.12);
  --shadow-lg: 0 8px 40px rgba(107, 144, 128, 0.16);
}

/* ==========================================================================
   DIRECTION "ONDULATION"
   Concept : Fluidité, calme, eau comme fil conducteur
   ========================================================================== */
body[data-theme="ondulation"] {
  --color-primary: #3D8B8B;
  --color-primary-dark: #2A6B6B;
  --color-secondary: #1E3348;
  --color-secondary-dark: #152436;
  --color-background: #F7F9F8;
  --color-surface: #FFFFFF;
  --color-text: #1E3348;
  --color-text-light: #4A6275;
  --color-border: #E0E8E8;
  
  --font-heading: 'Nunito Sans', sans-serif;
  --font-body: 'Source Sans 3', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 600;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 2px 12px rgba(61, 139, 139, 0.06);
  --shadow-md: 0 6px 24px rgba(61, 139, 139, 0.1);
  --shadow-lg: 0 12px 48px rgba(61, 139, 139, 0.14);
}

/* ==========================================================================
   DIRECTION "ÉMERGENCE"
   Concept : Croissance, élévation, sobriété professionnelle
   ========================================================================== */
body[data-theme="emergence"] {
  --color-primary: #4A6E8A;
  --color-primary-dark: #3A5A72;
  --color-secondary: #C9A87C;
  --color-secondary-dark: #B89560;
  --color-background: #FFFFFF;
  --color-surface: #FFFFFF;
  --color-text: #1A2530;
  --color-text-light: #5A6A78;
  --color-border: #E5E8EB;
  
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 600;
  
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 1px 4px rgba(74, 110, 138, 0.08);
  --shadow-md: 0 4px 16px rgba(74, 110, 138, 0.1);
  --shadow-lg: 0 8px 32px rgba(74, 110, 138, 0.12);
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */

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

html, body {
  height: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-base), color var(--transition-base);
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input {
  font: inherit;
}

/* ==========================================================================
   THEME SWITCHER
   ========================================================================== */

.theme-switcher {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--switcher-height);
  background: #1a1a1a;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  z-index: 200;
  font-size: 0.875rem;
  padding: 0 var(--space-sm);
}

.theme-switcher__label {
  opacity: 0.7;
  font-weight: 500;
  flex-shrink: 0;
}

.theme-switcher__buttons {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3rem 0.6rem;
  background: rgba(255,255,255,0.1);
  border-radius: 6px;
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.theme-btn:hover {
  background: rgba(255,255,255,0.15);
  color: white;
}

.theme-btn.is-active {
  background: rgba(255,255,255,0.2);
  color: white;
}

.theme-btn__color {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ==========================================================================
   LAYOUT
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  min-height: 100vh;
  padding-top: var(--switcher-height);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

/* Background shapes */
.hero__background {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.08;
  transition: background-color var(--transition-base);
}

.hero__shape--1 {
  width: 600px;
  height: 600px;
  background: var(--color-primary);
  top: -200px;
  right: -100px;
}

.hero__shape--2 {
  width: 400px;
  height: 400px;
  background: var(--color-secondary);
  bottom: -100px;
  left: -100px;
}

.hero__shape--3 {
  width: 200px;
  height: 200px;
  background: var(--color-primary);
  top: 50%;
  left: 20%;
}

/* Header */
.hero__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: var(--font-weight-normal);
  transition: font-family var(--transition-base);
}

.logo strong {
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.hero__nav {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-light);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), border-radius var(--transition-base);
}

.nav-link:hover {
  color: var(--color-primary);
}

/* Hero content */
.hero__content {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: var(--space-xl);
  align-items: center;
  padding: var(--space-lg) 0;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.1;
  margin-bottom: var(--space-md);
  transition: font-family var(--transition-base);
}

.hero__title .highlight {
  color: var(--color-primary);
}

.hero__desc {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-lg);
  max-width: 400px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast), border-radius var(--transition-base);
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

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

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--accent {
  background-color: var(--color-secondary);
  color: white;
}

.btn--accent:hover {
  background-color: var(--color-secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

/* ==========================================================================
   CARROUSEL
   ========================================================================== */

.carousel {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: border-radius var(--transition-base);
}

.carousel__track {
  display: flex;
  transition: transform var(--transition-slow);
}

.carousel__slide {
  flex: 0 0 100%;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
}

/* Navigation */
.carousel__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.carousel__btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-background);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  transition: all var(--transition-fast), border-radius var(--transition-base);
}

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

.carousel__btn svg {
  width: 20px;
  height: 20px;
}

.carousel__dots {
  display: flex;
  gap: var(--space-xs);
}

.carousel__dot {
  width: 10px;
  height: 10px;
  background: var(--color-border);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.carousel__dot:hover {
  background: var(--color-text-light);
}

.carousel__dot.is-active {
  background: var(--color-primary);
  transform: scale(1.2);
}

/* ==========================================================================
   PREVIEW : CARDS
   ========================================================================== */

.preview--cards {
  display: flex;
  gap: var(--space-md);
  width: 100%;
  max-width: 500px;
}

.card {
  flex: 1;
  background: var(--color-background);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-radius var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
  color: white;
  transition: border-radius var(--transition-base);
}

.card__icon--alt {
  background: var(--color-secondary);
}

.card__icon svg {
  width: 22px;
  height: 22px;
}

.card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-xs);
  transition: font-family var(--transition-base);
}

.card__text {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
  line-height: 1.5;
}

.card__link {
  font-size: 0.8125rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-secondary);
}

.card__link:hover {
  color: var(--color-secondary-dark);
}

/* ==========================================================================
   PREVIEW : TYPO
   ========================================================================== */

.preview--typo {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  width: 100%;
  max-width: 450px;
}

.typo-sample {
  padding: var(--space-md);
  background: var(--color-background);
  border-radius: var(--radius-md);
  transition: border-radius var(--transition-base);
}

.typo-label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
}

.typo-heading {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  transition: font-family var(--transition-base);
}

.typo-body {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

.typo-accent {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  transition: font-family var(--transition-base);
}

/* ==========================================================================
   PREVIEW : FORM
   ========================================================================== */

.preview--form {
  width: 100%;
  max-width: 350px;
}

.form-preview {
  padding: var(--space-md);
  background: var(--color-background);
  border-radius: var(--radius-md);
  transition: border-radius var(--transition-base);
}

.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--space-xs);
  color: var(--color-text);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 0.9375rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), border-radius var(--transition-base);
}

.form-input::placeholder {
  color: var(--color-text-light);
  opacity: 0.6;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(107, 144, 128, 0.15);
}

/* ==========================================================================
   PREVIEW : COLORS
   ========================================================================== */

.preview--colors {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  width: 100%;
  max-width: 320px;
}

.color-swatch {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space-sm);
  transition: transform var(--transition-fast), border-radius var(--transition-base);
}

.color-swatch:hover {
  transform: scale(1.05);
}

.color-swatch__label {
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.color-swatch--primary {
  background: var(--color-primary);
  color: white;
}

.color-swatch--secondary {
  background: var(--color-secondary);
  color: white;
}

.color-swatch--bg {
  background: var(--color-background);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.color-swatch--text {
  background: var(--color-text);
  color: white;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 900px) {
  .hero__content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero__desc {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero__actions {
    justify-content: center;
  }
  
  .carousel {
    max-width: 500px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  :root {
    --switcher-height: auto;
  }
  
  .theme-switcher {
    height: auto;
    padding: 8px var(--space-sm);
    flex-wrap: wrap;
  }
  
  .theme-switcher__buttons {
    gap: 4px;
  }
  
  .theme-btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.6875rem;
  }
  
  .theme-btn__color {
    width: 10px;
    height: 10px;
  }
  
  .hero {
    padding-top: 70px;
  }
}

@media (max-width: 640px) {
  .theme-switcher__label {
    display: none;
  }
  
  .hero__nav {
    display: none;
  }
  
  .hero__content {
    padding: var(--space-md) 0;
  }
  
  .hero__actions {
    flex-direction: column;
    width: 100%;
  }
  
  .btn {
    width: 100%;
  }
  
  .carousel__slide {
    min-height: 350px;
    padding: var(--space-md);
  }
  
  .preview--cards {
    flex-direction: column;
  }
  
  .preview--colors {
    max-width: 240px;
  }
}