body {
    background-color: #f7f9fc;
    font-family: "Public Sans", sans-serif;
    transition: background-color 0.3s, color 0.3s;
}
/* HEADER */
header.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 1rem 1.5rem;
    transition: all 0.3s;
}
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.navbar-brand img {
    height: 40px;
    /* filter: brightness(0) invert(1); */
}
.navbar-nav .nav-link {
    font-weight: 500;
    color: rgba(255,255,255,0.9) !important;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    background: rgba(255,255,255,0.15);
    color: #fff !important;
    transform: translateY(-2px);
}
.navbar-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #fff;
    transition: width 0.3s;
}
.navbar-nav .nav-link:hover::after {
    width: 60%;
}
.profile-pic {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 0.8rem;
    background: rgba(255,255,255,0.15);
    border-radius: 30px;
    color: #fff !important;
    transition: all 0.3s;
}
.profile-pic:hover {
    background: rgba(255,255,255,0.25);
}
.profile-pic img {
    border: 2px solid #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.dropdown-menu {
    border-radius: 12px;
    border: none;
    box-shadow: 0 8px 24px rgba(0,0,0,0.15);
    margin-top: 0.5rem;
}
.dropdown-item {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    margin: 0.2rem 0.5rem;
    transition: all 0.2s;
}
.dropdown-item:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}
#theme-toggle {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}
#theme-toggle:hover {
    background: rgba(255,255,255,0.25);
    transform: rotate(20deg);
}
.btn-outline-primary {
    border: 2px solid #fff;
    color: #fff;
    font-weight: 600;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    transition: all 0.3s;
}
.btn-outline-primary:hover {
    background: #fff;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255,255,255,0.3);
}
/* MAIN CONTENT */
main {
    padding: 2rem;
    min-height: 80vh;
}
/* FOOTER */
footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 1.5rem 0;
    text-align: center;
    font-size: 14px;
    margin-top: 3rem;
}
footer a {
    color: #fff;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    transition: border-color 0.3s;
}
footer a:hover {
    border-bottom-color: #fff;
}
.heart {
    color: #ff6b6b;
    animation: heartbeat 1.5s ease-in-out infinite;
}
@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}
/* ROLE BADGE */
.role-badge {
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    background: rgba(255,255,255,0.2);
    margin-left: 0.5rem;
}
/* === DARK THEME === */
body.dark-theme {
    background-color: #121212;
    color: #e0e0e0;
}
body.dark-theme header.navbar {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}
body.dark-theme footer {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}
body.dark-theme .card {
    background-color: #1e1e1e;
    color: #e0e0e0;
    border-color: #333;
}
/* Responsive */
@media (max-width: 768px) {
    .navbar-nav {
        margin-top: 1rem;
    }
    .navbar-nav .nav-link {
        margin: 0.3rem 0;
    }
}



.btn-outline-primary-light {
    border: 2px solid #667eea;
    color: #667eea;
    font-weight: 600;
    padding: 0.4rem 1rem;
    border-radius: 25px;
    transition: all 0.3s;
    background-color: transparent;
}

.btn-outline-primary-light:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}


/*  Correction pour les boutons invisibles sur fond clair */
.btn-outline-primary {
    border: 2px solid #667eea !important;
    color: #667eea !important;
    background: transparent;
}

.btn-outline-primary:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: #fff !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

/*  Adaptation automatique pour le dark mode */
body.dark-theme .btn-outline-primary {
    border-color: #fff !important;
    color: #fff !important;
}