.settings-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 15px;
    flex-wrap: wrap;
}
.settings-tab {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--background);
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    position: relative;
}
.settings-tab:hover {
    background: rgba(76, 175, 80, 0.1);
    color: var(--text-primary);
}
.settings-tab.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: white;
    box-shadow: var(--shadow-sm);
}
.settings-tab-badge {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 600;
}
.settings-tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}
.settings-tab-content.active {
    display: block;
}
.avatar-upload {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
}
.avatar-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--surface);
    box-shadow: var(--shadow-md);
}
.avatar-upload-btn {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: var(--transition);
}
.avatar-upload-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(26, 95, 35, 0.3);
}
.profile-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin: 25px 0;
}
.profile-stat {
    background: var(--background);
    border-radius: var(--radius-md);
    padding: 15px;
    text-align: center;
    border: 1px solid var(--border);
}
.profile-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}
.profile-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.account-type {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-left: 10px;
}
.account-type.student {
    background: rgba(33, 150, 243, 0.1);
    color: var(--info);
}
.account-type.admin {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success);
}
.account-type.teacher {
    background: rgba(255, 152, 0, 0.1);
    color: var(--warning);
}
.danger-zone {
    margin-top: 40px;
    padding-top: 25px;
    border-top: 2px solid var(--danger);
}
.danger-zone h3 {
    color: var(--danger);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.danger-actions {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.delete-account-btn {
    padding: 12px 20px;
    border: none;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, #f44336, #d32f2f);
    color: white;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
}
.delete-account-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(244, 67, 54, 0.3);
}
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}
.settings-save-bar {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: none;
    z-index: 100;
}
.settings-save-bar.show {
    display: block;
    animation: slideUp 0.4s ease;
}
#save-all-settings {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: 2px solid var(--primary);
    background: linear-gradient(135deg, rgba(26, 95, 35, 0.1), rgba(46, 125, 50, 0.1));
    color: var(--primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    box-shadow: 0 4px 16px rgba(26, 95, 35, 0.15);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
    font-weight: 600;
}
#save-all-settings::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}
#save-all-settings:hover {
    transform: scale(1.15) translateY(-3px);
    color: var(--primary-light);
    border-color: var(--primary-light);
    background: linear-gradient(135deg, rgba(26, 95, 35, 0.2), rgba(46, 125, 50, 0.2));
    box-shadow: 0 8px 24px rgba(26, 95, 35, 0.25);
}
#save-all-settings:hover::before {
    left: 100%;
}
#save-all-settings:active {
    transform: scale(0.95);
}
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    .settings-tab {
        padding: 10px 15px;
        font-size: 14px;
    }
    .profile-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .settings-save-bar {
        bottom: 20px;
        right: 20px;
    }
}
@media (max-width: 480px) {
    .settings-tabs {
        flex-direction: column;
    }
    .settings-tab {
        width: 100%;
        justify-content: center;
    }
    .profile-stats {
        grid-template-columns: 1fr;
    }
}