.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--ui-color-accent, #40a7e3);
    color: white;
    border: none;
    border-radius: var(--ui-radius-xl, 24px);
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    cursor: pointer;
}

.btn-primary:hover {
    background-color: var(--ui-color-accent-hover, #3595cc);
}

.btn-primary i {
    margin-right: 8px;
    font-size: 18px;
}

.btn-block {
    width: 100%;
    margin-top: 15px;
}

.button-red-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--ui-color-danger, #ff4444);
    color: white;
    border: none;
    border-radius: var(--ui-radius-xl, 24px);
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    cursor: pointer;
    width: 100%;
}

.button-red-primary:hover {
    background-color: var(--ui-color-danger-hover, #e63939);
}

.button-red-primary:active {
    background-color: var(--ui-color-danger-hover, #e63939);
}

.button-green-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--ui-color-success, #4BB543);
    color: white;
    border: none;
    border-radius: var(--ui-radius-xl, 24px);
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    cursor: pointer;
    width: 100%;
}

.button-green-primary:hover {
    background-color: var(--ui-color-success-hover, #3da336);
}

.button-green-primary:active {
    background-color: var(--ui-color-success-hover, #3da336);
}

.button-gray-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--ui-color-surface-3, #6c757d);
    color: white;
    border: none;
    border-radius: var(--ui-radius-xl, 24px);
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    cursor: pointer;
    width: 100%;
}

.button-gray-primary:hover {
    background-color: #5a6268;
}

.button-gray-primary:active {
    background-color: #5a6268;
}

.button-invisible-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    color: var(--ui-color-text-soft, #DCDDE0);
    border: 1px solid var(--ui-color-border-strong, #333);
    border-radius: var(--ui-radius-xl, 24px);
    padding: 10px 20px;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.2s;
    text-decoration: none;
    cursor: pointer;
    width: 100%;
}

.button-invisible-primary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

.button-invisible-primary:active {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}