/* ============================================
   SIMULATEUR-PATRIMOINE.FR
   Charte graphique v1.0
   ============================================ */

/* === VARIABLES === */
:root {
  /* Couleurs principales */
  --color-primary: #1E3A5F;      /* Bleu marine */
  --color-secondary: #D4A84B;    /* Or */
  --color-primary-light: #2d4a6f;
  --color-primary-dark: #152a45;
  --color-secondary-light: #e0bc6a;
  --color-secondary-dark: #b8923d;
  
  /* Couleurs filtres */
  --color-domaine: #3b82f6;
  --color-domaine-bg: #eff6ff;
  --color-domaine-border: #bfdbfe;
  
  --color-objectif: #f59e0b;
  --color-objectif-bg: #fffbeb;
  --color-objectif-border: #fcd34d;
  
  --color-horizon: #8b5cf6;
  --color-horizon-bg: #f5f3ff;
  --color-horizon-border: #c4b5fd;
  
  /* Neutres */
  --color-text: #1c1917;
  --color-text-light: #57534e;
  --color-text-muted: #78716c;
  --color-border: #e7e5e4;
  --color-bg: #fafafa;
  --color-bg-alt: #f5f5f4;
  --color-white: #ffffff;
  
  /* États */
  --color-success: #22c55e;
  --color-success-bg: #dcfce7;
  --color-error: #ef4444;
  --color-error-bg: #fee2e2;
  
  /* Typographie */
  --font-heading: 'Merriweather', Georgia, serif;
  --font-body: 'Source Sans 3', 'Source Sans Pro', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Espacements */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Bordures */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  
  /* Ombres */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
  
  /* Layout */
  --max-width: 1200px;
  --header-height: 64px;
}

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

/* === BASE === */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* === TYPOGRAPHIE === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-primary);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--color-secondary);
}

/* === LAYOUT === */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

main {
  flex: 1;
  padding: var(--spacing-xl) 0;
}

/* === HEADER === */
.header {
  background: var(--color-primary);
  color: var(--color-white);
  height: var(--header-height);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header__logo .highlight {
  color: var(--color-secondary);
}

.header__nav {
  display: flex;
  gap: var(--spacing-lg);
}

.header__nav a {
  color: var(--color-white);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: background 0.2s;
}

.header__nav a:hover,
.header__nav a.active {
  background: rgba(255,255,255,0.1);
  color: var(--color-secondary);
}

/* === FOOTER === */
.footer {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: var(--spacing-xl) 0;
  margin-top: auto;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer__links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer__links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.875rem;
}

.footer__links a:hover {
  color: var(--color-secondary);
}

.footer__copy {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.5);
}

/* === BARRE DE RECHERCHE === */
.search-box {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.search-box input {
  width: 100%;
  padding: var(--spacing-md) var(--spacing-lg);
  padding-left: 3rem;
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.search-box input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.search-box::before {
  content: "🔍";
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.25rem;
}

/* === FILTRES === */
.filters {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

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

.filter-group__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  width: 70px;
  flex-shrink: 0;
}

.filter-group--domaine .filter-group__label { color: var(--color-domaine); }
.filter-group--objectif .filter-group__label { color: var(--color-objectif); }
.filter-group--horizon .filter-group__label { color: var(--color-horizon); }

.filter-btn {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: 0.8125rem;
  border-radius: var(--radius-sm);
  border: 1px solid;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}

/* Domaine */
.filter-btn--domaine {
  background: var(--color-domaine-bg);
  color: var(--color-domaine);
  border-color: var(--color-domaine-border);
}
.filter-btn--domaine:hover,
.filter-btn--domaine.active {
  background: var(--color-domaine);
  color: var(--color-white);
  border-color: var(--color-domaine);
}

/* Objectif */
.filter-btn--objectif {
  background: var(--color-objectif-bg);
  color: #b45309;
  border-color: var(--color-objectif-border);
}
.filter-btn--objectif:hover,
.filter-btn--objectif.active {
  background: var(--color-objectif);
  color: var(--color-white);
  border-color: var(--color-objectif);
}

/* Horizon */
.filter-btn--horizon {
  background: var(--color-horizon-bg);
  color: var(--color-horizon);
  border-color: var(--color-horizon-border);
}
.filter-btn--horizon:hover,
.filter-btn--horizon.active {
  background: var(--color-horizon);
  color: var(--color-white);
  border-color: var(--color-horizon);
}

/* === COMPTEUR === */
.counter {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-md);
}

.counter strong {
  color: var(--color-primary);
}

/* === LISTE SIMULATEURS === */
.simulateurs-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* === CARTE SIMULATEUR === */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  transition: border-color 0.2s, box-shadow 0.2s;
}

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

.card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.card__content {
  flex: 1;
}

.card__title {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.card__title .icon {
  color: var(--color-secondary);
}

.card__description {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.5;
  margin-bottom: 0;
}

.card__action {
  flex-shrink: 0;
}

/* === BOUTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

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

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

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

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

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
}

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

/* === PAGE TITRE === */
.page-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.page-header h1 {
  margin-bottom: var(--spacing-sm);
}

.page-header p {
  color: var(--color-text-light);
  font-size: 1.125rem;
  margin-bottom: 0;
}

/* === FAQ / GLOSSAIRE === */
.list-container {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  max-height: 600px;
  overflow-y: auto;
}

.list-item {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.list-item:last-child {
  border-bottom: none;
}

.list-item__title {
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.list-item__content {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* === ÉTATS === */
.empty-state {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--color-text-muted);
}

.empty-state__icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.loading {
  text-align: center;
  padding: var(--spacing-2xl);
  color: var(--color-text-muted);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  :root {
    --header-height: 56px;
  }
  
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
  
  .header__nav {
    gap: var(--spacing-sm);
  }
  
  .header__nav a {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
  }
  
  .filter-group__label {
    width: 100%;
    margin-bottom: var(--spacing-xs);
  }
  
  .card__header {
    flex-direction: column;
  }
  
  .card__action {
    align-self: flex-start;
    margin-top: var(--spacing-md);
  }
  
  .footer .container {
    flex-direction: column;
    text-align: center;
  }
}

/* === ADMIN === */
.admin-header {
  background: #dc2626;
}

.admin-badge {
  background: #fef2f2;
  color: #dc2626;
  font-size: 0.75rem;
  font-weight: 600;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  margin-left: var(--spacing-sm);
}