:root {
  --f-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --transition: 0.3s ease;
}

/* Thème Industriel (Admin) - Défaut */
:root[data-theme="industrial"] {
  --primary: #1a3a5f;
  --bg: #edf2f7;
  --surface: #ffffff;
  --text: #1a202c;
  --danger: #c53030;
  --success: #2f855a;
  --radius: 2px;
  --shadow: 4px 4px 0px rgba(0, 0, 0, 0.1);
}

/* Thème Soin (Infirmier) */
:root[data-theme="care"] {
  --primary: #00b5ad;
  --bg: #f0fdfa;
  --surface: #ffffff;
  --text: #2d3748;
  --danger: #f56565;
  --success: #48bb78;
  --radius: 24px;
  --shadow: 0 10px 25px rgba(0, 181, 173, 0.1);
}

/* Thème Sombre (Nuit) */
:root[data-theme="dark"] {
  --primary: #63b3ed;
  --bg: #1a202c;
  --surface: #2d3748;
  --text: #f7fafc;
  --danger: #fc8181;
  --success: #68d391;
  --radius: 8px;
  --shadow: none; /* Pas d'ombres en mode nuit */
  --border: 1px solid rgba(255, 255, 255, 0.1);
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--f-sans);
  margin: 0;
  transition: background-color var(--transition), color var(--transition);
}

/* Fix for input visibility across all themes */
input, select, textarea {
  color: var(--text) !important;
  background-color: var(--surface) !important;
}

/* Ensure placeholder visibility */
::placeholder {
  color: rgba(0, 0, 0, 0.4);
}

:root[data-theme="dark"] ::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

* {
  box-sizing: border-box;
}

/* Composants */
.card {
  background-color: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: var(--border, none);
  padding: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.1);
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: calc(var(--radius) / 2);
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: opacity var(--transition), background-color var(--transition);
}

.btn-primary:hover { opacity: 0.9; }

.badge-status {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  background-color: var(--danger);
  color: white;
  margin-bottom: 1rem;
  transition: background-color var(--transition);
}

/* Theme Switcher Styles (for demo) */
.theme-switcher {
  position: fixed;
  top: 1rem;
  right: 1rem;
  display: flex;
  gap: 0.5rem;
  background: var(--surface);
  padding: 0.5rem;
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  z-index: 1000;
  border: var(--border, 1px solid rgba(0,0,0,0.05));
}

.theme-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: border-color 0.2s;
}

.theme-btn.active {
  border-color: var(--primary);
}

.theme-btn[data-theme="industrial"] { background-color: #1a3a5f; }
.theme-btn[data-theme="care"] { background-color: #00b5ad; }
.theme-btn[data-theme="dark"] { background-color: #1a202c; }