.aes__container {
    display: grid;
    gap: 2rem;
    margin-bottom: 2rem;
}

/* Options Panel */
.aes__options {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: 1rem;
    display: grid;
    gap: 1.5rem;
}

.options__group {
    display: grid;
    gap: 1rem;
}

.options__group h3 {
    color: var(--title-color);
    font-size: var(--normal-font-size);
    margin-bottom: .5rem;
}

.option {
    display: grid;
    gap: .5rem;
}

.option label {
    color: var(--text-color);
    font-size: var(--small-font-size);
}

.option select,
.option input {
    padding: .75rem;
    border: 1px solid var(--border-color);
    border-radius: .5rem;
    background-color: var(--body-color);
    color: var(--text-color);
    font-size: var(--small-font-size);
    width: 100%;
}

.option select {
    cursor: pointer;
}

.key-input-group {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: .5rem;
    align-items: center;
}

/* Content Area */
.aes__content {
    display: grid;
    gap: 1.5rem;
}

.content__group {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: 1rem;
}

.content__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.content__header h3 {
    color: var(--title-color);
    font-size: var(--normal-font-size);
    margin: 0;
}

.content__actions {
    display: flex;
    gap: .5rem;
}

textarea {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: .5rem;
    background-color: var(--body-color);
    color: var(--text-color);
    font-size: var(--small-font-size);
    font-family: monospace;
    resize: vertical;
}

textarea:read-only {
    background-color: var(--container-color);
    cursor: default;
}

/* Action Buttons */
.action__buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

/* Tips Container */
.tips__container {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: 1rem;
}

.tips__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.tips__header h3 {
    color: var(--title-color);
    font-size: var(--normal-font-size);
    margin: 0;
}

.tips__content {
    display: grid;
    gap: 1.5rem;
}

.tip__section h4 {
    color: var(--title-color);
    font-size: var(--normal-font-size);
    margin-bottom: .5rem;
}

.tip__section ul {
    color: var(--text-color);
    font-size: var(--small-font-size);
    line-height: 1.6;
    padding-left: 1.5rem;
}

.tip__section li {
    margin-bottom: .5rem;
}

/* Responsive Design */
@media screen and (min-width: 768px) {
    .aes__container {
        grid-template-columns: 300px 1fr;
    }
}

@media screen and (max-width: 767px) {
    .aes__options {
        order: 2;
    }

    .aes__content {
        order: 1;
    }

    .key-input-group {
        grid-template-columns: 1fr auto;
    }

    .key-input-group button:first-of-type {
        grid-column: 2;
    }

    .key-input-group button:last-of-type {
        grid-column: 1 / -1;
    }
}

.tool__container {
    background-color: var(--container-color);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .1);
}

.section__description {
    text-align: center;
    color: var(--text-color-light);
    margin-bottom: 2rem;
}

@media screen and (max-width: 768px) {
    .tool__container {
        padding: 1rem;
    }
}