/* ========================================
   Input Area - Aligned with messages
   ======================================== */
.input-container {
    flex-shrink: 0;
    background-color: var(--bg-primary);
    border-top: 1px solid var(--border-primary);
    padding: 16px;
}

.input-wrapper {
    max-width: var(--input-max-width);
    margin: 0 auto;
}

.file-preview-area {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
    overflow-x: auto;
    padding-bottom: 4px;
}

.file-preview-area::-webkit-scrollbar {
    height: 4px;
}

.preview-item {
    position: relative;
    border: 1px solid var(--border-primary);
    border-radius: 8px;
    padding: 4px;
    background: var(--bg-primary);
    flex-shrink: 0;
}

.preview-item img {
    height: 48px;
    border-radius: 4px;
    display: block;
}

.preview-item .remove-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 18px;
    height: 18px;
    background: var(--text-secondary);
    color: white;
    border: 2px solid var(--bg-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.preview-item .remove-btn:hover {
    background: #ef4444;
}

.upload-status {
    font-size: 0.625rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 2px;
}

.input-box {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 12px;
    padding: 10px;
    transition: all var(--transition-fast);
}

.input-box:focus-within {
    background-color: var(--bg-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.input-actions {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.icon-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.icon-btn:hover {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

.icon-btn i {
    width: 18px;
    height: 18px;
}

.icon-btn.active {
    color: var(--accent-primary);
    background-color: var(--accent-light);
}

#message-input {
    flex-grow: 1;
    border: none;
    background: none;
    resize: none;
    outline: none;
    font-size: 0.9375rem;
    line-height: 1.7;
    letter-spacing: 0.01em;
    color: var(--text-primary);
    max-height: 200px;
    padding: 5px 0;
    font-family: var(--font-sans);
    min-height: 24px;
}

#message-input::placeholder {
    color: var(--text-tertiary);
}

.send-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--accent-primary);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}

.send-btn:hover:not(:disabled) {
    background-color: var(--accent-primary-hover);
}

.send-btn:disabled {
    background-color: var(--text-muted);
    cursor: default;
    opacity: 0.5;
}

.send-btn i {
    width: 18px;
    height: 18px;
}

.footer-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    font-size: 0.75rem;
    color: var(--text-tertiary);
    margin-top: 8px;
    text-align: center;
}

.footer-text i {
    width: 12px;
    height: 12px;
}