.settings-container {
    max-width: 1000px;
    margin: 40px auto;
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
    padding: 0 20px;
}

.settings-sidebar {
    display: flex; 
    flex-direction: column; 
    gap: 5px;
}

.settings-sidebar h2 {
    font-size: 0.9rem; 
    color: #666; 
    text-transform: uppercase; 
    letter-spacing: 2px;
    margin-bottom: 15px; 
    padding-left: 15px;
}

.sidebar-btn {
    background: transparent; 
    border: none;
    color: #a1a1aa;
    padding: 12px 20px;
    text-align: left;
    font-size: 1rem; 
    font-weight: 500;
    cursor: pointer; 
    border-radius: 10px;
    transition: all 0.2s;
    display: flex; 
    align-items: center; 
    gap: 12px;
}

.sidebar-btn:hover {
    background: rgba(255,255,255,0.05);
    color: white;
}

.sidebar-btn.active {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.1), transparent);
    color: white;
    border-left: 3px solid var(--neon-purple);
}

.sidebar-btn.active i { 
    color: var(--neon-purple); 
    text-shadow: 0 0 10px var(--neon-purple); 
}

.logout-btn {
    margin-top: 20px;
    color: #ef4444;
}
.logout-btn:hover { 
    background: rgba(239, 68, 68, 0.1); 
    color: #ef4444; 
}

.settings-content {
    background: rgba(20, 20, 25, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 24px;
    padding: 40px;
    min-height: 400px;
}

.settings-section h2 {
    font-size: 1.8rem; 
    margin: 0 0 30px 0;
    background: linear-gradient(90deg, #fff, #a5b4fc);
    -webkit-background-clip: text; 
    background-clip: text; 
    color: transparent;
}

.input-group { 
    margin-bottom: 25px; 
}

.input-group label { 
    display: block; 
    color: #888; 
    margin-bottom: 10px; 
    font-size: 0.9rem; 
}

.input-group input {
    width: 100%;
    background: rgba(0,0,0,0.3);
    border: 1px solid #333;
    padding: 15px;
    border-radius: 12px;
    color: white; 
    font-family: 'Courier New', monospace;
    transition: 0.3s; 
    box-sizing: border-box;
}

.input-group input:focus {
    border-color: var(--neon-purple);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.1);
    outline: none;
}

.radio-group { 
    display: flex; 
    gap: 15px; 
    margin-top: 10px; 
}

.radio-option {
    background: rgba(255,255,255,0.05);
    border: 1px solid transparent;
    padding: 10px 20px; 
    border-radius: 8px;
    cursor: pointer; 
    color: #ccc; 
    transition: 0.2s;
    display: flex; 
    align-items: center; 
    gap: 8px;
}

.radio-option:hover { 
    background: rgba(255,255,255,0.1); 
}

.radio-option.selected {
    background: var(--neon-blue); 
    color: white;
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.hidden { display: none; }

.settings-container {
    max-width: 1000px;
    margin: 40px auto;
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 40px;
    padding: 0 20px;
}

.settings-sidebar {
    display: flex; 
    flex-direction: column; 
    gap: 5px;
}

.settings-sidebar h2 {
    font-size: 0.9rem; 
    color: #666; 
    text-transform: uppercase; 
    letter-spacing: 2px;
    margin-bottom: 15px; 
    padding-left: 15px;
}

.sidebar-btn {
    background: transparent; 
    border: none;
    color: #a1a1aa;
    padding: 12px 20px;
    text-align: left;
    font-size: 1rem; 
    font-weight: 500;
    cursor: pointer; 
    border-radius: 10px;
    transition: all 0.2s;
    display: flex; 
    align-items: center; 
    gap: 12px;
}

.sidebar-btn:hover {
    background: rgba(255,255,255,0.05);
    color: white;
}

.sidebar-btn.active {
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.1), transparent);
    color: white;
    border-left: 3px solid var(--neon-purple);
}
.sidebar-btn.active i { 
    color: var(--neon-purple); 
    text-shadow: 0 0 10px var(--neon-purple); 
}

.logout-btn { 
    margin-top: 20px; 
    color: #ef4444; 
}

.logout-btn:hover { 
    background: rgba(239, 68, 68, 0.1); 
    color: #ef4444; 
}

.settings-content {
    background: rgba(20, 20, 25, 0.4);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 24px;
    padding: 40px;
    min-height: 400px;
}

.settings-section h2 {
    font-size: 1.8rem; margin: 0 0 30px 0;
    background: linear-gradient(90deg, #fff, #a5b4fc);
    -webkit-background-clip: text; 
    background-clip: text; 
    color: transparent;
}

.input-group { 
    margin-bottom: 25px; 
    display: flex; 
    gap: 10px; 
    align-items: center; 
}

.input-group input {
    flex: 1;
    background: rgba(0,0,0,0.3);
    border: 1px solid #333;
    padding: 15px;
    border-radius: 12px;
    color: white; 
    font-family: 'Courier New', monospace;
    transition: 0.3s; 
    box-sizing: border-box;
}

.input-group input:disabled { 
    background: rgba(255,255,255,0.05); 
    color: #666; 
    border-color: transparent; 
}

.input-group input:focus {
    border-color: var(--neon-purple);
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.1);
    outline: none;
}

.btn-secondary {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white; 
    padding: 12px 20px; 
    border-radius: 10px;
    cursor: pointer; 
    font-weight: 600; 
    transition: 0.2s;
}

.btn-secondary:hover { 
    background: rgba(255,255,255,0.2); 
}

.btn-primary {
    background: var(--neon-purple);
    border: none; 
    color: white;
    padding: 12px 25px; 
    border-radius: 10px;
    cursor: pointer; 
    font-weight: 700; 
    transition: 0.2s;
    box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover { 
    transform: scale(1.05); 
    box-shadow: 0 0 25px rgba(139, 92, 246, 0.5); 
}

.setting-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px; 
    padding: 25px;
    margin-bottom: 25px;
}
.setting-card h3 { 
    margin-top: 0; 
    margin-bottom: 15px; 
    font-size: 1.1rem; 
    color: #e4e4e7; 
}

.radio-group { 
    display: flex; 
    gap: 15px; 
    margin-top: 10px; 
}

.radio-option {
    background: rgba(255,255,255,0.05);
    border: 1px solid transparent;
    padding: 10px 20px; 
    border-radius: 8px;
    cursor: pointer; 
    color: #ccc; 
    transition: 0.2s;
    display: flex; 
    align-items: center; 
    gap: 8px;
}

.radio-option:hover { 
    background: rgba(255,255,255,0.1); 
}

.radio-option.selected {
    background: rgba(59, 130, 246, 0.2); 
    color: white;
    border: 1px solid var(--neon-blue);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.2);
}

.hidden { 
    display: none; 
}

@media (max-width: 768px) {
    .settings-container { 
        grid-template-columns: 1fr; 
    }

    .settings-sidebar { 
        display: flex; 
        flex-direction: row; 
        overflow-x: auto; 
        padding-bottom: 10px; 
    }

    .sidebar-btn { 
        padding: 10px; 
        white-space: nowrap; 
    }
}