/* Header Styles */
header {
    background: #FFFFFF;
    border-bottom: 1px solid #E5E7EB;
    padding: 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    height: 64px;
}

.logo {
    font-size: 22px;
    font-weight: 700;
    color: #111827;
    text-decoration: none;
    letter-spacing: -1px;
    display: flex;
    align-items: center;
    gap: 8px;
    height: 100%;
    padding: 0 12px;
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
    height: 100%;
    margin: 0 auto;
}

.nav-links a {
    color: #6B7280;
    text-decoration: none;
    font-weight: 400;
    font-size: 14px;
    transition: color 0.15s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    height: 100%;
    padding: 0 8px;
}

.nav-links a:hover {
    color: #111827;
}

/* Auth Section - Buttons & User Menu */
.auth-section {
    display: flex;
    align-items: center;
    height: 100%;
}

/* Auth Buttons */
.auth-buttons {
    display: flex;
    gap: 12px;
    align-items: center;
    height: 100%;
}

/* User Menu (Dropdown) */
.user-menu {
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-balance-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    background: #FFFFFF;
    color: #111827;
    font-weight: 600;
    font-size: 13px;
    white-space: nowrap;
    cursor: pointer;
    transition: all 0.2s ease;
}

.user-balance-btn:hover {
    background: #F9FAFB;
    border-color: #D1D5DB;
}

.user-balance {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    background: #F9FAFB;
    color: #111827;
    font-weight: 600;
    font-size: 13px;
    white-space: nowrap;
}

.user-balance i {
    color: #6B7280;
    font-size: 15px;
}

.user-btn {
    height: 40px;
    padding: 0 16px;
    background: transparent;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    color: #0F172A;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.user-btn:hover {
    background: #F9FAFB;
    border-color: #D1D5DB;
}

.user-btn i {
    font-size: 12px;
    transition: transform 0.2s ease;
}

.user-btn.active i {
    transform: rotate(180deg);
}

/* Dropdown Menu */
.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: #FFFFFF;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    min-width: 200px;
    margin-top: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all 0.2s ease;
    pointer-events: none;
    z-index: 1001;
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: #374151;
    text-decoration: none;
    font-weight: 400;
    font-size: 14px;
    transition: all 0.15s ease;
}

.dropdown-item:hover {
    background: #F9FAFB;
    color: #111827;
}

.dropdown-item i {
    font-size: 16px;
    color: #6B7280;
}

.dropdown-item:hover i {
    color: #111827;
}

.dropdown-item.logout {
    color: #DC2626;
}

.dropdown-item.logout:hover {
    background: #FEE2E2;
}

.dropdown-item.logout i {
    color: #DC2626;
}

.dropdown-divider {
    height: 1px;
    background: #E5E7EB;
    margin: 8px 0;
}

/* Mobile - Hide everything */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .header-container {
        padding: 0 16px;
        height: 56px;
    }
    
    .logo {
        font-size: 18px;
        padding: 0 8px;
    }
    
    .user-menu {
        gap: 6px;
    }
    
    .user-balance-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .user-balance-btn i {
        font-size: 14px;
    }
    
    .user-btn {
        height: 36px;
        padding: 0 10px;
        font-size: 13px;
    }
    
    /* Afficher au moins 6 caractères sur mobile */
    .user-btn .username-text {
        display: inline-block;
        max-width: 60px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }
    
    .user-dropdown {
        min-width: 180px;
    }
    
    .dropdown-item {
        padding: 10px 14px;
        font-size: 13px;
    }
    
    .auth-buttons {
        gap: 8px;
    }
    
    .auth-buttons .btn-secondary,
    .auth-buttons .btn-primary {
        padding: 8px 12px;
        font-size: 13px;
    }
}

@media (max-width: 400px) {
    .header-container {
        padding: 0 12px;
    }
    
    .logo {
        font-size: 16px;
    }
    
    .user-balance-btn span {
        display: none;
    }
    
    .user-balance-btn {
        padding: 8px;
    }
    
    .user-btn {
        padding: 0 8px;
    }
    
    /* Garder 6 caractères minimum même sur très petit écran */
    .user-btn .username-text {
        max-width: 55px;
    }
    
    /* Garder les deux boutons Connexion et Inscription */
    .auth-buttons {
        gap: 6px;
    }
    
    .auth-buttons .btn-secondary,
    .auth-buttons .btn-primary {
        padding: 6px 10px;
        font-size: 12px;
    }
}