.empty-state-container {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    /* We will use padding and flex to control alignment */
    align-items: center;
    padding: 20px;
    overflow: hidden;
    background-color: var(--bg-primary);
}

.empty-state-content {
    width: 100%;
    max-width: 720px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;

}

.empty-state-title {
    font-size: 2.5rem;
    font-weight: 500;

    /* --- FIX FOR BRIGHTNESS --- */
    /* Changed from #e0e0e0 to a brighter, near-white */
    color: var(--text-primary-on-dark, #f0f2f5);
    text-align: center;
}

.empty-state-input-wrapper {
    width: 100%;
    position: relative;
    display: flex;
    align-items: center;
    background-color: var(--bg-secondary-dark, #222224); /* Slightly lighter bg */
    border-radius: 24px;
    border: 1px solid var(--border-dark, #444); /* Brighter border */
    padding: 8px 8px 8px 24px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3); /* Stronger shadow */
    transition: border-color 0.2s ease;
}

.empty-state-input-wrapper:focus-within {
    /* Add a subtle glow when the user is typing */
    border-color: var(--accent-color);
}

.empty-state-textarea {
    flex-grow: 1;
    background: none;
    border: none;
    outline: none;
    resize: none;

    /* --- FIX FOR BRIGHTNESS --- */
    color: var(--text-primary-on-dark, #f0f2f5); /* Brighter text */
    font-family: var(--font-sans);
    font-size: 1.1rem;
    line-height: 1.5;
    padding-right: 50px;
    max-height: 200px;
    overflow-y: auto;
}

.empty-state-textarea::placeholder {
    /* --- FIX FOR BRIGHTNESS --- */
    color: var(--text-placeholder-on-dark, #777); /* Brighter placeholder */
}
.empty-state-spacer {
    flex-grow: 1.5; /* A value > 1 pushes content up more than down */
}
.empty-state-send-button {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--bg-tertiary-dark, #3a3a3c); /* Brighter button bg */

    /* --- FIX FOR BRIGHTNESS --- */
    color: var(--text-secondary-on-dark, #c0c0c0); /* Brighter icon color */
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.empty-state-send-button:not(:disabled):hover {
    background-color: var(--accent-color);
    color: var(--accent-text-color, #fff);
}

.empty-state-send-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.empty-state-model-selector-wrapper {
    width: 100%;
    max-width: 300px;
    display: flex;
    justify-content: center;
}